PATENT DOCUMENT

Publication Number: US-10701833-B2
Application Number: US-201715712068-A
Country: US
Kind Code: B2

Title: Battery architecture in an electronic device

Abstract:
An electronic device having a battery assembly is disclosed. Unlike traditional battery assemblies that include rectilinear electrodes with two sides of equal length, the battery assemblies described herein may include electrodes having a shape/configuration resembling an L-shape electrode used to form chemical reactions in order to generate electrical energy. However, other shapes/configurations are possible. The shape/configuration of the housing of the battery assembly confirms to the shape/configuration of the electrodes. Further, in order to accommodate an internal component (such as a circuit board assembly), the shape of the battery assembly provides additional space in the electronic device. In order to form the electrodes, the electrodes may undergo a die cutting operation. Also, the housing may include a channel, or reduced dimension, that accommodates a flexible circuit in the electronic device that passes over the battery assembly at the channel.

Claims:
What is claimed is: 
     
       1. A battery assembly for an electronic device, the battery assembly comprising:
 a housing that defines an internal cavity and an exterior channel; 
 a single piece electrode disposed in the cavity, the single piece electrode comprising:
 a first wall having a first dimension, 
 a second wall having a second dimension different from the first dimension, the second wall parallel to the first wall, and 
 a third wall that joins the first wall and the second wall, wherein the housing conforms to a peripheral shape of the single piece electrode; and 
 
 a circuit board positioned in the internal cavity at the exterior channel. 
 
     
     
       2. The battery assembly of  claim 1 , wherein:
 the single piece electrode further comprises a fourth wall extending from one of the first wall and the second wall, the fourth wall parallel to the third wall, 
 the third wall having a third dimension, and 
 the fourth wall having a fourth dimension different from the third dimension. 
 
     
     
       3. The battery assembly of  claim 2 , wherein the first wall, the second wall, the third wall, and the fourth wall at least partially define the shape as an L-shape. 
     
     
       4. The battery assembly of  claim 2 , wherein the single piece electrode further comprises a fifth wall having a fifth dimension, the fifth wall parallel with respect to the third wall and the fourth wall. 
     
     
       5. The battery assembly of  claim 1 , wherein the single piece electrode is a first single piece electrode, and the battery assembly further comprises:
 a second single piece electrode; and 
 a separator positioned between the first single piece electrode and the second single piece electrode, wherein the second single piece electrode and the separator have a size and shape corresponding to the peripheral shape of the first single piece electrode. 
 
     
     
       6. The battery assembly of  claim 5 , wherein
 the first single piece electrode defines a first opening; 
 the second single piece electrode defines a second opening, the second opening aligned with the first opening; and 
 a third opening in the separator defines a third opening, the third opening aligned with the first opening and the second opening, and the first opening, second opening, and third opening in communication with one another. 
 
     
     
       7. An electronic device, comprising:
 an enclosure defining an internal volume; 
 a battery assembly disposed in the internal volume, the battery assembly comprising:
 a first edge, a second edge separate from the first edge, and a wall perpendicular to the first edge and the second edge; 
 the wall connecting the first edge to the second edge to define a channel; 
 
 an internal component disposed in the internal volume and at least partially in the channel. 
 
     
     
       8. The electronic device of  claim 7 , wherein the battery assembly further comprises an electrode, the electrode comprising:
 a first rectangular portion symmetrically disposed about a first longitudinal axis; and 
 a second rectangular portion disposed about a second longitudinal axis that is perpendicular with respect to the first longitudinal axis. 
 
     
     
       9. The electronic device of  claim 8 , wherein the first rectangular portion comprises a first wall parallel to the first longitudinal axis, the first wall having a first dimension, and wherein the second rectangular portion comprises a second wall parallel to the second longitudinal axis, the second wall having a second dimension less than the first dimension. 
     
     
       10. The electronic device of  claim 8 , wherein the electrode further comprises a third rectangular portion that is parallel to the second rectangular portion and perpendicular to the first rectangular portion. 
     
     
       11. The electronic device of  claim 7 , wherein the battery assembly further comprises a battery assembly housing that defines an internal cavity; and
 a circuit board positioned in the internal cavity at a location corresponding to the channel. 
 
     
     
       12. The electronic device of  claim 7 , wherein:
 the internal component is a first internal component, and the electronic device further comprises a second internal component; and 
 the battery assembly defines an opening and the second internal component is positioned in the opening. 
 
     
     
       13. The electronic device of  claim 7 , wherein the internal component comprises an audio module. 
     
     
       14. A method for assembling a battery assembly for an electronic device, the method comprising:
 providing a housing that defines an internal cavity and an exterior channel; 
 cutting a single piece electrode to a shape that comprises:
 a first wall having a first dimension, 
 a second wall having a second dimension that is different from the first dimension, the second wall being parallel to the first wall; 
 a third wall that joins the first wall and the second wall; and 
 
 inserting the single piece electrode and a circuit board into the internal cavity, wherein the housing conforms to a peripheral shape of the single piece electrode and the circuit board is positioned in the internal cavity at the exterior channel. 
 
     
     
       15. The method of  claim 14 , wherein providing the housing comprises forming the exterior channel in the housing. 
     
     
       16. The method of  claim 14 , wherein cutting the single piece electrode comprises die cutting the single piece electrode, wherein die cutting the single piece electrode comprises:
 forming a first rectangular portion; and 
 forming a second rectangular portion that extends from, and is perpendicular to, the first rectangular portion. 
 
     
     
       17. The method of  claim 14 , further comprising forming a through hole in the battery assembly, the through hole defined by an opening in the housing and an opening in the single piece electrode. 
     
     
       18. The method of  claim 14 , wherein cutting the single piece electrode comprises cutting a first single piece electrode, and wherein the method further comprises:
 inserting a second single piece electrode into the internal cavity; and 
 inserting a separator into the internal cavity between the first single piece electrode and the second single piece electrode, the second single piece electrode and the separator comprise a size and shape corresponding to the peripheral shape of the first single piece electrode.

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application claims the benefit of priority to (i) U.S. Provisional Application No. 62/398,037, filed on Sep. 22, 2016, and titled “DISPLAY MODULE &amp; GLASS WITH UNDERCUT PLASTIC FRAME”; (ii) U.S. Provisional Application No. 62/398,045, filed on Sep. 22, 2016, and titled “BATTERY ARCHITECTURE IN AN ELECTRONIC DEVICE”; (iii) U.S. Provisional Application No. 62/398,059, filed on Sep. 22, 2016, and titled “STACKED MLB ARCHITECTURE IN AN ELECTRONIC DEVICE”; (iv) U.S. Provisional Application No. 62/398,065, filed on Sep. 22, 2016, and titled “CLOSED AUDIO MODULE IN AN ELECTRONIC DEVICE”; (v) U.S. Provisional Application No. 62/398,069, filed on Sep. 22, 2016, and titled “THERMAL DISTRIBUTION ASSEMBLY IN AN ELECTRONIC DEVICE”; and (vi) U.S. Provisional Application No. 62/557,090, filed on Sep. 11, 2017, and titled “PORTABLE ELECTRONIC DEVICE”, the disclosure of each is incorporated herein by reference in its entirety. 
    
    
     FIELD 
     The following description relates to electronic devices. In particular, the following relates to an electronic device that includes a battery assembly, or internal power supply. The battery can take on several different sizes and shapes, due in part to the processes used to form the battery. 
     BACKGROUND 
     An electronic device may include a battery having a rectilinear shape, with multiple edges or sides having the same dimension. As electronic device manufacturers try to improve battery life, the volume of the battery is often required to increase. As a result, the rectilinear design of the battery limits the size and/or positioning of other components, which may lead to performance limitations of the electronic device. 
     SUMMARY 
     In one aspect, a battery assembly for an electronic device is described. The battery assembly may include a housing that defines a cavity. The battery assembly may further include a single piece electrode disposed in the cavity. The single piece electrode may include a shape that includes a first wall characterized as having a first dimension. The shape of the single piece electrode may further include a second wall characterized as having a second dimension that is different than the first dimension. Also, the second wall may be parallel to the first wall. The shape of the single piece electrode may further include a third wall that joins together the first wall and the second wall. In some embodiments, the housing conforms to the shape of the single piece electrode. 
     In another aspect, an electronic device is described. The electronic device may include an enclosure defining an internal volume. The electronic device may further include a battery assembly disposed in the internal volume. The battery assembly may include a first edge. The battery assembly may further include a second edge separate from the first edge. The battery assembly may further include a channel. The electronic device may further include a circuit board assembly at least partially positioned between the first edge and the second edge. The electronic device may further include an internal component. The electronic device may further include a flexible circuit electrically coupled to the circuit board assembly. The flexible circuit may pass over the battery along the channel and connect to the internal component such that the internal component. 
     In another aspect, a method for assembling a battery assembly for an electronic device is described. The method may include providing a housing that defines a cavity. The method may further include cutting a single piece electrode to a shape that includes a first wall having a first dimension. The shape of the single piece electrode may further include a second wall having a second dimension that is different than the first dimension. The second wall may be parallel to the first wall. The shape of the single piece electrode may further include a third wall that joins together the first wall and the second wall. The method may further include inserting the single piece electrode into the cavity. In some embodiments, the housing conforms to the shape of the single piece electrode. 
     Other systems, methods, features and advantages of the embodiments will be, or will become, apparent to one of ordinary skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description and this summary, be within the scope of the embodiments, and be protected by the following claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The disclosure will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which: 
         FIG. 1  illustrates a front isometric view of an embodiment of an electronic device, in accordance with some described embodiments; 
         FIG. 2  illustrates a rear isometric view of the electronic device shown in  FIG. 1 , further showing additional features of the electronic device; 
         FIG. 3  illustrates a partial exploded view of the electronic device shown in  FIG. 1 , showing various components of the electronic device; 
         FIG. 4  illustrates a partial exploded view of the electronic device shown in  FIG. 1 , further showing additional components of the electronic device; 
         FIG. 5  illustrates a cross sectional view of the electronic device shown in  FIG. 1 , taken along line A-A in  FIG. 1 ; 
         FIG. 6  illustrates a cross sectional view of an alternate embodiment of an electronic device, in accordance with some described embodiments; 
         FIG. 7  illustrates a cross sectional view of the electronic device shown in  FIG. 1 , taken along line B-B in  FIG. 1 ; 
         FIG. 8  illustrates a cross sectional view of an alternate embodiment of an electronic device, in accordance with some described embodiments; 
         FIG. 9  illustrates a plan view of an embodiment of a frame, in accordance with some described embodiments; 
         FIG. 10  illustrates a cross sectional view of the frame shown in  FIG. 9  taken along line A-A; 
         FIG. 11  illustrates a cross sectional view of an alternate embodiment of a frame, showing a surface of the frame having protruding features, in accordance with some described embodiments; 
         FIG. 12  illustrates a cross sectional view of an embodiment of an electronic device, showing the electronic device having a frame and a supporting element partially embedded in the frame and extending substantially into the frame; 
         FIG. 13  illustrates a cross sectional view of an embodiment of an electronic device, showing the electronic device having a protective cover and a sidewall component that is extended to provide additional support for the protective cover, in accordance with some described embodiments; 
         FIG. 14  illustrates a cross sectional view of an embodiment of an electronic device, showing the electronic device having various structural enhancements, in accordance with some described embodiments; 
         FIG. 15  illustrates a plan view of an embodiment of an electronic device, showing a plate positioned in an enclosure of the electronic device, in accordance with some described embodiments; 
         FIG. 16  illustrates a partial side view of the electronic device shown in  FIG. 15 , further showing the first extension of the plate secured with a display assembly; 
         FIG. 17  illustrates a cross sectional view of an embodiment of an electronic device, showing the electronic device with an enclosure and a support structure integrally formed with the enclosure, in accordance with some described embodiments; 
         FIG. 18  illustrates a plan view of an embodiment of a protective cover, in accordance with some described embodiments; 
         FIG. 19  illustrates a cross sectional view of the protective cover shown in  FIG. 18  taken along line B-B, further showing the a notch formed in the protective cover; 
         FIG. 20  illustrates a cross sectional view of an embodiment of an electronic device, showing the protective cover (shown in  FIGS. 18 and 19 ) secured with an enclosure, in accordance with some described embodiments; 
         FIG. 21  illustrates a cross sectional view of an embodiment of an electronic device, showing a protective cover extending over a frame and positioned proximate to a sidewall component, in accordance with some described embodiments; 
         FIG. 22  illustrates an exploded view of the battery, in accordance with some described embodiments; 
         FIG. 23  illustrates a plan view of the first electrode shown in  FIG. 22 ; 
         FIG. 24  illustrates a plan view of an alternate embodiment of an electrode suitable for use in a battery assembly, in accordance with some described embodiments; 
         FIG. 25  illustrates a plan view of an alternate embodiment of an electrode suitable for use in a battery assembly, in accordance with some described embodiments; 
         FIG. 26  illustrates a plan view of an alternate embodiment of an electrode suitable for use in a battery assembly, in accordance with some described embodiments; 
         FIG. 27  illustrates an embodiment of a battery in an electronic device, with the battery having a shape that accommodates an internal component of the electronic device, in accordance with some described embodiments; 
         FIG. 28  illustrates an alternate embodiment of a battery assembly in an electronic device, with the battery assembly having a shape that accommodates multiple internal components of the electronic device, in accordance with some described embodiments; 
         FIG. 29  illustrates an alternate embodiment of a battery assembly in an electronic device, with the battery assembly having an opening that accommodates an internal component of the electronic device, in accordance with some described embodiments; 
         FIG. 30  illustrates an alternate embodiment a battery assembly in an electronic device, with the battery assembly positioned in an enclosure (of the electronic device) over a first internal component of the electronic device, in accordance with some described embodiments; 
         FIG. 31  illustrates a cross sectional view of the electronic device shown in  FIG. 30 , taken along line C-C in  FIG. 30 ; 
         FIG. 32  illustrates an exploded view of the circuit board assembly shown in  FIG. 4 , in accordance with some described embodiments; 
         FIG. 33  illustrates a cross sectional view of the circuit board assembly shown in  FIG. 32 , showing various internal components of the circuit board assembly; 
         FIG. 34  illustrates an alternative embodiment of a circuit board assembly, showing the circuit board assembly modified for ingress protection; 
         FIG. 35  illustrates an alternate embodiment of a circuit board assembly, showing the circuit board assembly having a flexible circuit electrically coupled with the circuit boards of the circuit board assembly, in accordance with some described embodiments; 
         FIG. 36  illustrates a cross sectional view of the circuit board assembly shown in  FIG. 35 , showing the flexible circuit extending between the circuit boards; 
         FIG. 37  illustrates a cross sectional view of an alternate embodiment of a circuit board assembly, showing internal components of the circuit board assembly having corresponding geometries, in accordance with some described embodiments; 
         FIG. 38  illustrates a cross sectional view of an alternate embodiment of a circuit board assembly, showing the circuit board assembly having several solder masks used to support a circuit board, an accordance with some described embodiments; 
         FIG. 39  illustrates an isometric view of an embodiment of an audio module, in accordance with some described embodiments; 
         FIG. 40  illustrates a cross sectional view of the audio module shown in  FIG. 39 , taken along line D-D in  FIG. 39 , showing several internal features; 
         FIG. 41  illustrates a cross sectional view of the electronic device, showing the audio module positioned in the electronic device; 
         FIG. 42  illustrates an exploded view of a thermal distribution assembly, in accordance with some described embodiments; 
         FIG. 43  illustrates a partial cross sectional view of the electronic device shown in  FIG. 1 , showing the thermal distribution assembly positioned in the electronic device; 
         FIG. 44  illustrates a side view of an alternative embodiment of a thermal distribution assembly, in accordance with some described embodiments; 
         FIG. 45  illustrates an isometric view of an alternative embodiment of a thermal distribution assembly, showing the thermal distribution assembly modified to receive a component, in accordance with some described embodiments; 
         FIG. 46  illustrates an isometric view of an alternative embodiment of a thermal distribution assembly, in accordance with some described embodiments; 
         FIG. 47  illustrates a flowchart showing a method for forming a display assembly for an electronic device, in accordance with some described embodiments; 
         FIG. 48  illustrates a flowchart showing a method for forming a battery assembly for an electronic device, in accordance with some described embodiments; 
         FIG. 49  illustrates a flowchart showing a method for method for forming a circuit board assembly, in accordance with some described embodiments; 
         FIG. 50  illustrates a flowchart showing a method for assembling an electronic device that includes an enclosure that defines an internal volume, in accordance with some described embodiments; 
         FIG. 51  illustrates a flowchart showing a method for making a thermal distribution assembly for removing heat from a heat-generating component in an electronic device having an enclosure sidewall, in accordance with some described embodiments; 
         FIG. 52  illustrates an exploded view of a battery assembly in accordance with some described embodiments; 
         FIGS. 53, 54, 55, and 56  illustrate various configurations for a battery assembly utilizing multiple battery portions in accordance with some described embodiments; 
         FIG. 57  illustrates an adhesive area and perimeter of an electronic device for a battery assembly in accordance with some embodiments; 
         FIGS. 58A and 58B  illustrate adhesive tab with torsion patches and decoupling layers in accordance with some described embodiments; 
         FIGS. 59A and 59B  illustrate pull tab adhesives and their attachment to battery assemblies in accordance with some described embodiments; 
         FIGS. 60A and 60B  illustrate example tensile shims for battery assemblies in accordance with some described embodiments; and 
         FIGS. 61A, 61B, 61C, and 61D  illustrate example sled and side rail structures for battery assemblies in accordance with some described embodiments. 
     
    
    
     Those skilled in the art will appreciate and understand that, according to common practice, various features of the drawings discussed below are not necessarily drawn to scale, and that dimensions of various features and elements of the drawings may be expanded or reduced to more clearly illustrate the embodiments of the present invention described herein. 
     DETAILED DESCRIPTION 
     Reference will now be made in detail to representative embodiments illustrated in the accompanying drawings. It should be understood that the following descriptions are not intended to limit the embodiments to one preferred embodiment. To the contrary, it is intended to cover alternatives, modifications, and equivalents as can be included within the spirit and scope of the described embodiments as defined by the appended claims. 
     In the following detailed description, references are made to the accompanying drawings, which form a part of the description and in which are shown, by way of illustration, specific embodiments in accordance with the described embodiments. Although these embodiments are described in sufficient detail to enable one skilled in the art to practice the described embodiments, it is understood that these examples are not limiting such that other embodiments may be used, and changes may be made without departing from the spirit and scope of the described embodiments. 
     The following disclosure relates to an electronic device. The electronic device may include several enhancements over traditional devices. For example, the electronic device may include an enclosure that defines an internal volume of the electronic device. The electronic device may further include a display that extends to the enclosure in at least some locations, thereby increasing the size of the display. The display may be part of a display assembly that further includes a touch sensitive layer and a force sensitive layer. In order to accommodate the increased display size, the electronic device may include a border (or frame) surrounding the display, with the frame having a decreased size. However, without certain modifications, the reduced size of the border may expose electrical and mechanical connections between the display assembly components and flexible circuits (in the electronic device). In this regard, some components of the display assembly may be electrically and mechanically coupled with their respective circuitry (including flexible circuits) in different locations throughout the electronic device so as to hide the electrical and mechanical connections from view. For example, the touch sensitive layer and the display may electrically and mechanically couple with their respective circuitry at one location inside the electronic device, while the force sensitive layer electrically and mechanically couples with circuitry at a different location away from the electrical and mechanical connections between the touch sensitive layer, the display, and their respective flexible circuits. Also, by routing the electrical and mechanical connections in different locations, the volume occupied by the display assembly (and its components) can be reduced, and additional room in the internal volume of the electronic device is available for use by a different component(s) in the electronic device. 
     The electronic device may further include a circuit board assembly designed to occupy less space in the electronic device. For example, the circuit board assembly may be divided into a first circuit board stacked over a second circuit board. A stacked configuration of multiple circuit boards (one stacked over the other) may reduce the footprint of the circuit board assembly in two dimensions. Also, the aforementioned circuit boards may include operational components (such as integrated circuits or processor circuits) positioned on multiple, opposing surfaces. Also, the circuit board assembly may include several interposers, or interconnects, designed to carry signals between the first and second circuit boards, such that the first and second circuit boards (as well as their respective operational components) are in communication with one another. 
     In some instances, the stacked circuit board assembly may include an operational component (located on one of the circuit boards) that includes a recess and an additional operational component (located on one of the other circuit board) that includes a protrusion (or protruding feature) that is partially positioned in the recess. In this manner, the circuit boards can be positioned closer together based on the recess receiving a portion of the additional operational component, thereby further reducing the footprint of the stacked circuit board assembly. Further, in some instances, the operational components may electrically couple with one another. For example, the recess may include a connector and the protrusion may include a connector that electrically couples to the connector of the recess. As a result of the electrical connection between the operational components, the circuit boards may also be in electrical communication with each other. This may reduce the requirements for separate and dedicated electrical connectors used to electrically couple the circuit boards. 
     The electronic device may further include a battery assembly, or internal power supply. Due in part to the modifications to the display assembly and the circuit board assembly that create additional space in the enclosure, the battery assembly may increase in size and occupy at least some of the additional space, thereby increasing the charge capacity of the battery assembly. Furthermore, the battery assembly may include a shape other than a traditional rectilinear shape. For example, the battery assembly may include an L-shaped configuration formed by die cutting several electrodes in a L-shaped configuration, similar to that of the battery assembly, to form the battery assembly. Also, additional components, such as antennae and circuits, may be repositioned in the electronic device in order to increase the size of the battery assembly. In addition, the battery assembly may include modifications, such as a channel, designed to accommodate a flexible circuit routed across the battery assembly, and in particular, across the channel. 
     Also, in some instances, the enclosure may include a metal band that couples with a transparent protective layer (such as a cover glass) that covers the display assembly. The metal band may include a metal such as aluminum, or a metal alloy that includes aluminum. The enclosure may further include an additional protective layer coupled with the metal band. The additional protective layer may include a non-metal material, such as glass, sapphire, plastic, or the like. The additional protective layer may substantially define a rear or bottom wall of the electronic device. Accordingly, the ability of the enclosure to distribute and dissipate heat from the electronic device may be limited, as an amount of metal used for the enclosure is limited to the metal band, and glass includes a significantly lower thermal conductivity as compared to that of the metal that forms the metal band. 
     When one or more components (such as integrated circuits) in the electronic device generate heat, it may be necessary to remove the heat from the internal volume to avoid damage to a component (or components) in the electronic device. In this regard, the electronic device may include a thermal distribution assembly disposed against or near the additional protective layer. The thermal distribution assembly is designed to dissipate (or redistribute) thermal energy generated from the heat-generating component(s) to the metal band, allowing the thermal energy to dissipate from the electronic device. The thermal distribution assembly may include several layers of metal, one of which may include a relatively high thermal conductivity (as compared to the remaining layers). Accordingly, the electronic device may include an enclosure with a bottom wall made of glass, which may improve the overall aesthetics of the electronic device, while also having the ability to remove heat from the electronic device before the temperature inside the electronic device increases and causes damage to any of the internal components of the electronic device. Moreover, the layers of relatively low thermal conductivity may prevent heat transfer to the glass bottom wall, thereby preventing or limiting thermal energy reaching a user of the electronic device while holding the electronic device. 
     Also, when a user interacts with the display assembly, the force sensitive layer may determine an amount of force exerted on the display in order to generate a command in accordance with the amount of determined force. However, the force applied to the display assembly (by way of the protective layer that covers the display assembly) may bend the display assembly and the protective layer, thereby reducing the internal volume and increasing the internal air pressure. The increased internal air pressure may affect other components, such as an audio module designed to generate acoustical energy. In order to shield the audio module from increased air pressure, the audio module may include a housing, or enclosure, that encloses the components of the audio module, including a back volume of the audio module, and provides a shield from the air in the internal volume of the electronic device, and accordingly, shields the back volume of the audio module from pressure changes in the electronic device. In this manner, the audio module is unaffected from pressure changes in the electronic device and generates acoustical energy without disturbances from the pressure changes. 
     These and other embodiments are discussed below with reference to  FIGS. 1-61D . However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these Figures is for explanatory purposes only and should not be construed as limiting. 
       FIG. 1  illustrates a front isometric view of an embodiment of an electronic device  100 , in accordance with some described embodiments. In some embodiments, the electronic device  100  is a tablet computer device. In other embodiments, the electronic device  100  is a wearable electronic device that includes one or more straps (not shown) designed to wrap around an appendage (such as a wrist) of a user to secure the electronic device  100  with the user. In the embodiment shown in  FIG. 1 , the electronic device  100  is a mobile communication device, such as a smartphone. Accordingly, the electronic device  100  may enable wireless communication in the form of cellular network communication, Bluetooth communication (2.4 GHz), and/or wireless local area network (WLAN) communication (2.4 GHz to 5 GHz), as non-limiting examples. As shown, the electronic device  100  may include a display assembly  102  that includes a display layer designed to present visual information in the form of textual information, still images, and/or video information. Although not shown, the display assembly  102  may further include a touch sensitive layer designed to detect a touch input to the display assembly  102  in order to, for example, control the information presented on the display assembly  102 . Also, the display assembly  102  may further include a force sensitive layer designed to detect an amount of force applied to the display assembly  102 . The determined amount of force may correspond to a particular input or command to a processor circuit (not shown) that controls the display assembly  102 . For example, different detected amounts of force may correspond to different or distinct commands. 
     In order to protect the display assembly  102 , the electronic device  100  may include a first protective layer  104  that overlays the display assembly  102 . A second protective layer (not shown) of the electronic device  100  will be shown and discussed below. The first protective layer  104  may include a transparent material(s), including glass, sapphire, or plastic, as non-limiting examples. As shown, the first protective layer  104  may include openings that facilitate user interaction with the electronic device  100 . For example, the first protective layer  104  may include a first opening  106  and a second opening  108 . The electronic device  100  may include an image capture device (not shown) that captures an image (or images) through the first opening  106 . The electronic device  100  may further include an audio module (not shown) that generates acoustical energy in the form of audible sound, which exits the electronic device  100  via the second opening  108 . 
     Also, the electronic device  100  may include a band  110  that defines an outer perimeter of the electronic device  100 . Generally, the band  110  includes a shape similar to that of a 4-sided ring. However, other shapes are possible. Also, the band  110  may define multiple sidewalls and an opening to at least partially receive and secure with the first protective layer  104  and a second protective cover (not shown). In some embodiments, the band  110  includes a metal, such as aluminum or an alloy that includes aluminum. In this regard, the band  110  may provide a rigid support structure for the electronic device  100 . Also, when the band  110  is formed from a metal, the band  110  may include several sidewalls, some of which are used to support wireless communication. For example, the band  110  may include a first sidewall component  112  that forms a U-shape design, as well as a second sidewall component  114  that also forms a U-shape design. The first sidewall component  112  and the second sidewall component  114  may each function in conjunction with a radio circuit (not shown) in the electronic device  100  such that the first sidewall component  112  and the second sidewall component  114  each form at least part of an antenna for their respective radio circuits. For example, the first sidewall component  112  may function in conjunction with a WLAN radio circuit, and the second sidewall component  114  may function in conjunction with a cellular network radio circuit. 
     Also, the band  110  may further include a third sidewall component  116  and a fourth sidewall component  118 , with the third sidewall component  116  and the fourth sidewall component  118  separated from both the first sidewall component  112  and the second sidewall component  114  by split regions, or openings. For example, the band  110  may include a first split region  122  and a second split region  124  that combine to separate the third sidewall component  116  from the first sidewall component  112  and the second sidewall component  114 . Also, the band  110  may include a third split region  126  and a fourth split region  128  that combine to separate the fourth sidewall component  118  from the first sidewall component  112  and the second sidewall component  114 . The aforementioned split regions may be filled with a non-metal material, such as molded plastic (or other non-electrically conductive material), to provide a flush, co-planar surface with the various parts of the band  110 . With the first sidewall component  112  and the second sidewall component  114  being electrically isolated from the third sidewall component  116  and the fourth sidewall component  118 , the first sidewall component  112  and the second sidewall component  114  may function as part of an antenna, while the third sidewall component  116  and the fourth sidewall component  118  may function as an electrical ground for one or more internal components (not shown) that are electrically coupled with the third sidewall component  116  and the fourth sidewall component  118 , respectively. Also, each of the first sidewall component  112 , the second sidewall component  114 , the third sidewall component  116 , and the fourth sidewall component  118  may provide a protective structural component for at least some internal components, as well as provide thermal dissipation and heat removal for some heat-generating components (not shown) of the electronic device  100 , provided the heat-generating components are thermally coupled with at least one of the aforementioned parts. Also, the first sidewall component  112 , the second sidewall component  114 , the third sidewall component  116 , and the fourth sidewall component  118  may each represent at least a portion of first sidewall, a second sidewall, a third sidewall, and a fourth sidewall, respectively. 
     The electronic device  100  may further include one or more input devices. For example, the electronic device  100  includes a first button  130  designed to generate an input when depressed. The input may generate an electrical signal sent to a processor circuit (not shown) in the electronic device  100 , in order to alter the visual information presented on the display assembly  102 . As shown, the first button  130  is located along the third sidewall component  116 . However, other locations are possible. Also, although not shown, the electronic device  100  may include a switch designed to provide an additional user input function. 
     Also, the electronic device  100  may further include a data port  132  designed to receive and electrically couple with a cable assembly (not shown). The data port  132  may receive data/communication from the cable assembly, as well as electrical energy to charge a battery assembly (not shown) located in the electronic device  100 . Also, the electronic device  100  may include additional openings designed for various user interactions. For example, the electronic device  100  may an audio module (not shown) located near openings  134 , or through holes, formed in the second sidewall component  114 . The openings  134  allow acoustical energy generated from the audio module to exit the electronic device  100 . Also, the electronic device  100  may further include a microphone (not shown) located near an opening  136 , or through hole, formed in the second sidewall component  114 . The microphone may be positioned to receive acoustical energy through the opening  136 . 
       FIG. 2  illustrates a rear isometric view of the electronic device  100  shown in  FIG. 1 , further showing additional features of the electronic device  100 . As shown, the electronic device  100  may include a second protective layer  144  secured with the band  110 . The second protective layer  144  may combine with the band  110  to define an enclosure that includes an internal volume, or cavity, that receives several internal components, such as circuit boards, integrated circuits, and a battery assembly, as non-limiting examples. In this regard, the band  110  may include a first edge region that receives the first protective layer  104  (shown in  FIG. 1 ), as well as a second edge region that receives the second protective layer  144 , with the first edge region and the second edge region in opposite, or opposing, locations of the band  110 . Also, the second protective layer  144  may be referred to as a bottom wall or back wall. 
     Generally, the second protective layer  144  may include a material (or materials) that provides an aesthetic finish, such as glass, sapphire, or plastic. Also, in some instances, the material makeup of the second protective layer  144  may allow radio frequency (“RF”) communication, generated from internal radio circuits (not shown) of the electronic device  100 , to permeate through the second protective layer  144 . In this manner, the electronic device  100  may be in wireless communication with other devices (not shown) by way of RF communication that is substantially uninhibited by the second protective layer  144 . 
     Also, the second protective layer  144  may include openings that facilitate user interaction with the electronic device  100 . For example, the second protective layer  144  may include a first opening  146  and a second opening  148 . The electronic device  100  may include an image capture device (not shown) that captures an image (or images) through the first opening  146 . The electronic device  100  may further include a flash module (not shown) aligned with the second opening  148 , with the flash module generating light energy passing through the second opening  148  during an image capture event from the image capture device in order to enhance image quality of the image(s) taken by the image capture device. Also, in addition to the first button  130  (shown in  FIG. 1 ), the electronic device  100  may further include a second button  150  designed to generate an input when depressed, in a manner similar to that for the first button  130 . As shown, the second button  150  is located along the fourth sidewall component  118 . However, other locations are possible. 
       FIG. 3  illustrates a partial exploded view of the electronic device  100  shown in  FIG. 1 , showing various components of the electronic device  100 . Several features of the electronic device  100  are not shown for purposes of simplicity. As shown, the first protective layer  104  may overlay the display assembly  102 . Also, the first protective layer  104  may adhesively secure with the display assembly  102  by an adhesive layer (not shown). 
     As shown, the display assembly  102  may include a touch sensitive layer  202  designed to receive a touch input, a display layer  204  designed to present visual information, and a force sensitive layer  206  designed to detect an amount of force applied to, or exerted on, the display layer  204  by way a force applied to at least one of the first protective layer  104 , the touch sensitive layer  202 , and the display layer  204 . Also, although not shown, the display assembly  102  may include adhesive layers to adhesively secure the touch sensitive layer  202  with the display layer  204 , and to adhesively secure the display layer  204  with the force sensitive layer  206 . 
     The touch sensitive layer  202  is designed to receive a touch input when, for example, a user (not shown) depresses the first protective layer  104 . The touch sensitive layer  202  may include capacitive touch-sensitive technology. For example, the touch sensitive layer  202  may include a layer of capacitive material that holds an electrical charge. The layer of capacitive material is designed to form a part of multiple capacitive parallel plates throughout a location corresponding to the display layer  204 . In this regard, when a user touches the first protective layer  104 , the user forms one or more capacitors. Moreover, the user causes a volt drop across the one or more capacitors, which in turns causes the electrical charge of the capacitive material to change at a specific point (or points) of contact corresponding to a location of the user&#39;s touch input. The capacitance change and/or voltage drop can be measured by the electronic device  100  to determine the location of the touch input. Also, the touch sensitive layer  202  may include an edge region  226  that includes a connector (shown later). 
     In some embodiments, the display layer  204  includes a liquid crystal display (“LCD”) that relies upon backlighting to present the visual information. In the embodiment shown in  FIG. 3 , the display layer  204  includes an organic light emitted diode (“OLED”) display designed to illuminate individual pixels, when needed. When the display layer  204  includes OLED technology, the display layer  204  may include a reduced form factor as compared to that of an LCD display. In this regard, the display assembly  102  may include a smaller footprint, thereby creating more space for other components such as a battery assembly (shown later). Furthermore, when the display layer  204  includes OLED technology, the display layer  204  can curve or bend without causing damage to the display layer  204 . For example, as shown in  FIG. 3 , the display layer  204  includes a bend  208 . The bend  208  may include a 180-degree bend, or approximately 180-degree bend. The bend  208  allows the display layer  204  to bend or curve around at least a portion of the force sensitive layer  206 , as shown in  FIG. 3 . Also, the display layer  204  may include an edge region  210  that includes a connector (not shown) used to electrically and mechanically couple the display layer  204  with a flexible circuit (not shown) that electrically couples with a circuit board assembly (shown below), with flexible circuit placing the display layer  204  in communication with the circuit board assembly. Also, in some embodiments, the display layer  204  may include an active matrix organic light emitting diode (“AMOLED”) display. Also, as shown in  FIG. 3 , the edge region  226  of the touch sensitive layer  202  is parallel, or at least substantially parallel, with respect to the edge region  210  of the display layer  204 , even when the display layer  204  includes the bend  208 . 
     The force sensitive layer  206  may operate by determining an amount of force or pressure applied to the first protective layer  104 , the touch sensitive layer  202 , and/or the display layer  204 . In this regard, the force sensitive layer  206  may distinguish between different amounts of force applied to the electronic device  100 . The different amounts of force may correspond to different user inputs. The force sensitive layer  206  may include multiple parallel capacitor plate arrangements, with one plate of each capacitor plate arrangement having an electrical charge. When a force to the first protective layer  104 , the first protective layer  104  and causes the distance between one or more pairs of parallel plate capacitor to reduce, thereby causing a change in capacitance between the one or more pairs of parallel plate capacitor. The amount of change in capacitance corresponds to an amount of force exerted on the first protective layer  104 . Also, as shown in the enlarged view, the force sensitive layer  206  may include a connector  218  located on an edge region  220  of the force sensitive layer  206 , with the edge region  220  perpendicular, or at least substantially perpendicular, with respect to the edge region  210  of the display layer  204  and the edge region  226  of the touch sensitive layer  202 . Accordingly, the connector  218  can be positioned perpendicular, or at least substantially perpendicular, with respect to the connector (shown later) of the display layer  204 . 
     Further, in order to support the first protective layer  104  and facilitate assembly of the first protective layer  104  with the band  110  (shown in  FIG. 1 ), the electronic device  100  may include a frame  154  that receives and secures with the first protective layer  104  by an adhesive layer  166 . Accordingly, the frame  154  may include a size and shape in accordance with that of the first protective layer  104 . The frame  154  may be positioned at least partially between the first protective layer  104  and the band  110 . The frame  154  may be formed from a polymeric material, such as plastic, and may also include a metal ring (not shown) that is partially embedded in the polymeric material during an insert molding operation. In this regard, the frame  154  may structurally support the first protective layer  104 , as well as one or more components of the display assembly  102 . This will be shown below. 
       FIG. 4  illustrates a partial exploded view of the electronic device  100  shown in  FIG. 1 , further showing additional components of the electronic device  100 . Several features of the electronic device  100  are not shown for purposes of simplicity. As shown, the band  110  and the second protective layer  144  may combine to provide an internal volume  152  for several internal components. For example, the electronic device  100  may include a battery assembly  160  designed to distribute electrical current to operational components of the electronic device  100 . The battery assembly  160  may include a rechargeable battery designed to receive electrical current during a recharge. For example, the electronic device  100  may include an inductive receiver coil  162  (formed from a metal, such as steel) electrically coupled to the battery assembly  160 . The inductive receiver coil  162 , when placed in proximity to an alternating magnetic field from a device (not shown) external to the electronic device, may receive an induced electrical current from the alternating magnetic field. The induced electrical current from the inductive receiver coil  162  passes through a transformer to convert alternating current to direct current, which is then used to charge (or recharge) the battery assembly  160 . Also, the second protective layer  144  provides little or no impedance to the external magnetic field so that the alternating magnetic field reaches the inductive receiver coil  162 . 
     Also, the battery assembly  160  may further include a channel  164  that includes a reduced dimension (in the z-dimension in Cartesian coordinates, for example), thereby allowing a component, such as a flexible circuit (not shown), to extend along the battery assembly  160  and pass over the battery assembly  160  along the channel  164 . Due in part to the increase space provided by the channel  164 , other internal components, such as an antenna element (not shown), can be repositioned in the internal volume  152  of the electronic device  100 , thereby creating create additional space for the battery assembly  160 . In this manner, the volume (size) of the battery assembly  160  may increase, and the increased volume allows the battery assembly  160  to increase electrical storage capacity such that the electronic device  100  provides a longer usage of the electronic device  100  between charging events of the battery assembly  160 . 
     The electronic device  100  may further include a circuit board assembly  170  that includes multiple operational components. As shown, the circuit board assembly  170  may include a first circuit board  172  and a second circuit board  174 , with the first circuit board  172  stacked over the second circuit board  174 . In this manner, the circuit board assembly  170  can conserve space, in the x- and y-dimensions, in the internal volume  152 . Also, the first circuit board  172  and the second circuit board  174  may include multiple surfaces, with each of the multiple surfaces designed to carry one or more components (such as processor circuits). The various features of the circuit board assembly  170  will be discussed below. 
     The electronic device  100  may further include a first audio module  182  and a second audio module  184 , both of which are designed to generate acoustical energy in the form of audible sound. Each of the audio modules may include an opening to emit acoustical energy. However, each audio module is designed to include an acoustical volume (defined by their respective audio modules) that is isolated from the internal volume  152  of the electronic device  100 . In this manner, when the internal volume  152  changes by, for example, depressing and bending the first protective layer  104  (shown in  FIG. 3 ) to provide a touch input and/or a force input to the electronic device  100 , the audio modules are not affected (acoustically) from the change in the internal volume  152 , and associated increased air pressure in the internal volume  152 . This will be further discussed below. 
     The electronic device  100  may further include a thermal distribution assembly  190 . Although not shown, the thermal distribution assembly  190  may include several layers of material. In some embodiments, the layers of material differ. For example, some layers are formed from a first type material, while other layers are formed from a second type material different than the first type material. The first type material may include a material having a relatively high thermal conductivity. As an example, the first type material may include copper, known to include a thermal conductivity of approximately 400 W/m*K (Watts per meter per Kelvin degree). Alternatively, the first type may include graphite known to include a thermal conductivity of approximately 170 W/m*K. Accordingly, the first type material is well suited to receive thermal energy and transfer or distribute the thermal energy from one location in the electronic device  100  to another location, thereby facilitating removal of the thermal energy from the electronic device  100 . The second type material may include a more robust material, such as stainless steel. In this regard, the second type material may include a relatively lower thermal conductivity. However, the second type material may provide 1) a protective cover for the first type material, 2) structural support for the electronic device  100 , and/or 3) a workable surface to secure a component (not shown) with the thermal distribution assembly  190  by, for example, a welding operation. The various layers of the thermal distribution assembly  190  will be further described below. 
     The thermal distribution assembly  190  is designed to redirect or redistribute heat generated in the electronic device  100 . For example, the circuit board assembly  170  may include operational components, such as integrated circuits, known to convert electrical energy (supplied by the battery assembly  160 ) into thermal energy during operation. The thermal distribution assembly  190  can be thermally coupled with the circuit board assembly  170  by contact between the thermal distribution assembly  190  and the circuit board assembly  170 , as a non-limiting example. Also, the thermal distribution assembly  190  may be thermally coupled with the band  110  such that thermal energy received by the thermal distribution assembly  190  from the circuit board assembly  170  may at least partially transfer to the band  110 . Accordingly, at least some thermal conductivity lost by using the second protective layer  144  (a non-metal) is regained by using the thermal distribution assembly  190 . Also, the thermal distribution assembly  190  may include a size and shape in accordance with the second protective layer  144  such that thermal distribution assembly  190  covers, or at least substantially covers, a surface of the second protective layer  144 . For example, the x- and y-dimensions of the thermal distribution assembly  190  may be the same, or substantially similar, to the x- and y-dimensions, respectively, of the second protective layer  144 . 
     Although not shown, the electronic device  100  may include additional components, such a haptic engine and internal antennae, as non-limiting examples. Also, although not shown, the electronic device  100  may include several flexible circuits that place the electronic components (e.g., display assembly  102 , circuit board assembly  170 ) in electrical communication with one another as well as the battery assembly  160 . 
       FIG. 5  illustrates a cross sectional view of the electronic device  100  shown in  FIG. 1 , taken along line A-A in  FIG. 1 . As shown, the layer of the display assembly  102 —the touch sensitive layer  202 , the display layer  204 , and the force sensitive layer  206 —are assembled. Although not shown, the display assembly  102  may include adhesive layers to adhesively secure the touch sensitive layer  202  with the display layer  204 , and to adhesively secure the display layer  204  with the force sensitive layer  206 . 
     The touch sensitive layer  202  is designed to receive a touch input when, for example, a user (not shown) depresses the first protective layer  104 . The touch input can be relayed from the touch sensitive layer  202  to the circuit board assembly  170  (shown in  FIG. 4 ) by a first flexible circuit  212  electrically and mechanically coupled with the touch sensitive layer  202  by a connector  222  of the touch sensitive layer  202 . The connector  222  can be located on an edge region  226  (shown in  FIG. 3 ) of the touch sensitive layer  202 . As shown, the first flexible circuit  212  may bend or curve around the display layer  204  and the force sensitive layer  206  to electrically and mechanically couple with touch sensitive layer  202 . 
     The frame  154  may include design considerations that accommodate the display assembly  102 . For example, the frame  154  may include a notch  156 , or undercut region, designed to at least partially receive the first flexible circuit  212  and/or the display layer  204 . As shown in  FIG. 5 , the notch  156  includes a size and shape to receive a bent/curved region of both the display layer  204  as well the first flexible circuit  212 . While the notch  156  includes a curvature generally corresponding to that of the first flexible circuit  212  and the display layer  204 , other shapes, including straight edges, are possible for the notch  156 . Also, the notch  156  may be formed during a molding operation of the frame  154 . Alternatively, the notch  156  may be formed subsequent to a molding operation by, for example, a cutting operation. 
     Also, the frame  154  is adhesively secured with the first protective layer  104  and the second sidewall component  114  (of the band  110 , shown in  FIG. 1 ) by adhesive layers (not labeled). The frame  154  may include a supporting element  158  partially embedded in the frame  154 . In some embodiments, the supporting element  158  includes a ring formed from a metal material that continuously extends around the display assembly  102  in accordance with the frame  154 . However, the supporting element  158  may also be discontinuous, and accordingly, may be selectively embedded in the frame  154 . As shown, the supporting element  158  may extend along the frame  154  to support the display assembly  102  and the first protective layer  104 . Also, the first flexible circuit  212  may adhesively secure with the supporting element  158  by an adhesive layer (not labeled). 
       FIG. 5  further shows the some components of the display assembly  102  coupled with the flexible circuits at one location while other components are not. For example, the touch sensitive layer  202  is electrically and mechanically coupled with the first flexible circuit  212  by the connector  222 , and the display layer  204  is electrically and mechanically coupled with a second flexible circuit  214  by a connector  224 , with the connector  222  and the connector  224  located proximate to the second sidewall component  114  (defined by a U-shape configuration, as shown in  FIG. 1 ). The connector  218  (shown in  FIG. 3 ) of the force sensitive layer  206  is located along a different edge region of the force sensitive layer  206  (see  FIG. 3 ). Moreover, the connector  222  and connector  224  electrically and mechanically coupled with the first flexible circuit  212  and the second flexible circuit  214 , respectively, at a location proximate to the notch  156  in the frame  154 , while the force sensitive layer  206  is not. In addition, the connector  222  may be positioned parallel, or at least substantially parallel, with respect to the connector  224 . The force sensitive layer  206  may electrically and mechanically couple to a flexible circuit (not shown) in another separate location (such as the connector  218  on the edge region  220 , shown in  FIG. 3 ). This will be shown and described below. 
       FIG. 6  illustrates a cross sectional view of an alternate embodiment of an electronic device  250 , in accordance with some described embodiments. The electronic device  250  may include any feature(s) or component(s) previously described for an electronic device. For example, the electronic device  250  may include a display assembly  252  that includes a touch sensitive layer  262 , a display layer  264 , and a force sensitive layer  266 . However, as shown in  FIG. 6 , the display layer  264  may include a substantially flat configuration throughout the display layer  264 , with a flexible circuit  274  bending around the force sensitive layer  266  to electrically and mechanically couple with the display layer  264 . 
       FIG. 7  illustrates a cross sectional view of the electronic device  100  shown in  FIG. 1 , taken along line B-B in  FIG. 1 . As shown, the connector  218  (also shown in  FIG. 3 ) of the force sensitive layer  206  electrically and mechanically couples the force sensitive layer  206  with a third flexible circuit  216  that electrically couples with the circuit board assembly  170  (shown in  FIG. 4 ) to place the force sensitive layer  206  in communication with the circuit board assembly  170 . Also, the third flexible circuit  216  may adhesively secure with the supporting element  158  by an adhesive layer (not labeled). 
     As shown in  FIG. 7 , only the force sensitive layer  206  includes an electrical and mechanical connection with a flexible circuit. In other words, the connector  218  that provides the electrical and mechanical connection between the force sensitive layer  206  and the third flexible circuit  216  is in a different location of the electronic device  100 , as compared to the connector  222  (shown in  FIG. 5 ) of the touch sensitive layer  202  and the connector  224  (shown in  FIG. 5 ) of the display layer  204 . Also, based on the locations of the respective edge regions, the connector  218  of the force sensitive layer  206  is positioned perpendicular, or at least substantially perpendicular, with respect to the connector  222  of the touch sensitive layer  202  and the connector  224  of the display layer  204 . 
     Further, the connector  218  is proximate to the third sidewall component  116  (also shown in  FIG. 1 ), which is defined in part a sidewall that is perpendicular, or approximately perpendicular, to a portion of the second sidewall component  114  (shown in  FIGS. 1 and 5 ). As a result, the frame  154  may not require a notch  156  (shown in  FIG. 5 ) to accommodate the display layer  204  and the first flexible circuit  212  (shown in  FIG. 5 ). Accordingly, the frame  154  may include an asymmetrical frame. Moreover, the additional material of the frame  154  may allow for additional structural rigidity to support the display assembly  102  and the first protective layer  104 . 
       FIG. 8  illustrates a cross sectional view of an alternate embodiment of an electronic device  300 , in accordance with some described embodiments. The electronic device  300  may include any feature(s) or component(s) previously described for an electronic device. For example, the electronic device  300  may include a first protective layer  304  secured with a display assembly  302 , and a frame  354  that carries the first protective layer  304 . However, the first protective layer  304  may include an extension  306  that at least partially extends radially outward from the first protective layer  304  in a circumferential manner. In order to accommodate the extension  306 , the frame  354  may include a notch  366  that receives the extension  306 . The extension  306  provides the first protective layer  304  with an additional structural profile, and can also provide additional surface area to adhesively bond the first protective layer  304  with the frame  354 . For example, as shown in  FIG. 8 , the first protective layer  304  is adhesively secured with the frame  354  by an adhesive layer  362  that extends through a region defined in part by an interface between the frame  354  and the first protective layer  304 , including the extension  306 . Also, the distance or gap between the frame  354  and the first protective layer  304  (including the extension  306 ) may cause the adhesive layer  362  to extend through the interface region by capillary forces. As a result, the frame  354  is adhesively secured with the first protective layer  304  by multiple (perpendicular) surfaces in order to form a stronger adhesive bond that counters or offsets forces to the electronic device  300  in multiple directions. 
       FIG. 9  illustrates a plan view of an embodiment of a frame  454 , in accordance with some described embodiments. As shown, the frame  454  may include a supporting element  458 , which may include a metal ring molded into the frame  454 . The frame  454  may be implemented into one or more of the electronic devices described herein, and may include any features previously described for a frame. In order to improve adhesion forces between an adhesive (not shown) and a surface  462  of the frame  454 , the surface  462  may include certain modifications. For example, as shown in the enlarged view, the surface  462  may include a textured region  464  designed to increase the surface tension, or surface energy, of the surface  462 . The textured region  464  may enhance an adhesive bond between the frame  454  and a transparent cover (such as the first protective layer  104  shown in  FIG. 5 ) by an adhesive (such as the adhesive layer  166  shown in  FIG. 5 ). 
       FIG. 10  illustrates a cross sectional view of the frame  454  shown in  FIG. 9  taken along line A-A. As shown, the textured region  464  may include multiple dimples or divots formed into the frame  454  along the surface  462 . The textured region  464  provides additional surface area for the aforementioned adhesive. Several different processes may be used to form the textured region  464 . For example, a molding tool (not shown) used to mold the frame  454  may include protruding features that include a shape corresponding to the shape of the textured region  464 . Alternatively, the frame  454  may be formed with a molding tool that does not include the protruding features, and subsequent to the molding operation that forms the frame  454 , the surface  462  can be etched by a laser, for example, to form the textured region  464 . Also, while the textured region  464  defines several dimples or divots formed into the frame  454 , several shapes other than dimples or divots are possible. For example, the textured region  464  may include several indentations, linear and/or non-linear. 
       FIG. 11  illustrates a cross sectional view of an alternate embodiment of a frame  554 , showing a surface  562  of the frame  554  having protruding features  564 , in accordance with some described embodiments. The frame  554  may include any features previously described for a frame. In this regard, the surface  562  may be used to receive a transparent cover (such as the first protective layer  104  shown in  FIG. 5 ) by an adhesive (such as the adhesive layer  166  shown in  FIG. 5 ). As shown, the protruding features  564  may extend from the surface  562 . The frame  554 , and in particular, the protruding features  564 , may be formed by a molding tool (not shown) that includes inserts designed to draw out some of the molding material (used to form the frame  554 ), thereby causing the protruding features  564  to extend from the surface  562 . The protruding features  564  provide additional surface area for the aforementioned adhesive. 
       FIG. 12  illustrates a cross sectional view of an embodiment of an electronic device  700 , showing the electronic device  700  having a frame  754  and a supporting element  758  partially embedded in the frame  754  and extending substantially into the frame  754 . The electronic device  700  may include any features described herein for an electronic device. Also, similar to a prior embodiment, the supporting element  758  may include a ring formed from a metal material that extends around a display assembly  702  of the electronic device  700  and in accordance with the frame  754 . As shown, the supporting element  758  may extend, in a z-dimension, beyond the display assembly  702  and also beyond a protective cover  704  (similar to the first protective layer  104  shown in  FIG. 1 ). 
     In order to extend the supporting element  758  further in the z-dimension, the frame  754  may be widened in the y-dimension. Also, the dimensions of a sidewall component  714  (similar to the second sidewall component  114  shown in  FIG. 1 ) of the electronic device  700  can be reduced in the y-dimension to offset the increased dimension of the frame  754 . Further, the material(s) that form the frame  754  may be altered to accommodate the supporting element  758 . For example, the frame  754  may include a nylon material mixed with a glass filler material that enhances the overall strength and rigidity of the frame  754 . However, in some embodiments, the frame  754  is formed from ceramic. In this regard, the sidewall component  714 , as well as any remaining sidewall components, may also be formed from ceramic. 
     When the supporting element  758  is extended in a manner described, other factors should be taken into consideration. For example, in some instances, the sidewall component  714  forms part of an antenna assembly (not shown) that includes an antenna component designed to provide wireless communication for the electronic device  700 . The supporting element  758 , when formed from a metal, may cause some interference with the antenna component. This may include forming a parallel plate capacitor between the antenna assembly (including the sidewall component  714 ) and the supporting element  758 . Accordingly, the size, shape, material, and position of the supporting element  758  should be considered in order to prevent unwanted interference. It should be noted that additional techniques can used to optimize the size of the supporting element  758  the proximity to the sidewall component  714 . This may include, for example, reducing the z-dimension of the supporting element  758  and/or provide openings, or discontinuities, in the supporting element  758 . 
     The electronic device  700  may include a surface  762  that receives, and adhesively combines with, the protective cover  704 . The surface  762  may include a dimension  766  that provides a generally flat surface. However, in some embodiments, the surface  762  is modified to enhance the adhesive bond with the protective cover  704 . Also, the frame  754  may include a notch  756 , or undercut, formed into the frame  754  that allows the frame  754  to receive the display assembly  702 , including flexible circuits and flexible layers of the display assembly  702 . The notch  756  can be resized (increased, for example) based upon the increased dimension of the frame  754 . However, by increasing the size (in the y-dimension) of the notch  756 , additional material of the frame  754  may be removed in a location below the surface  762 . It should be noted that additional techniques are be used to optimize the size of the notch  756  with the dimension  766  of the surface  762 . 
     Also, in order to secure the frame  754  with the sidewall component  714 , the electronic device  700  may include an adhesive  768  that bonds the frame  754  to the sidewall component  714 . As shown, the amount of adhesive  768  used generally allows the sidewall component  714 , the frame  754 , and the protective cover  704  to form a generally continuous and planar configuration, as denoted by the edges of the aforementioned parts being aligned with one another. However, in order to provide additional protection to the protective cover  704  by the sidewall component  714 , the amount of adhesive  768  used can be reduced, causing the protective cover  704  to lower in the z-dimension with respect to the sidewall component  714 . In this manner, the sidewall component  714  may additionally cover part of the protective cover  704  and provide additional protection to the protective cover  704  from forces having a force component the y-dimension. It should be noted that additional techniques can used to optimize the amount of adhesive  768  used as well as adjust the size of the frame  754 , the sidewall component  714 , and the protective cover  704  in order to maintain the generally continuous and planar configuration. 
       FIG. 13  illustrates a cross sectional view of an embodiment of an electronic device  800 , showing the electronic device  800  having a protective cover  804  and a sidewall component  814  that is extended to provide additional support for the protective cover  804 , in accordance with some described embodiments. The electronic device  800  may include any features described herein for an electronic device. As compared to prior embodiments, the sidewall component  814  includes an outer perimeter  824  that is raised or elevated in the z-dimension. As a result, the material (in the y-dimension) forming the sidewall component  814  increases and provides additional support for the protective cover  804 . Further, the sidewall component  814  may include an edge  826  that is parallel, or at least substantially parallel, with respect to a surface  806  of the protective cover  804 . As a result, the sidewall component  814  may further provide additional support to the protective cover  804  and a frame  854  between the protective cover  804  and the sidewall component  814 . 
       FIG. 14  illustrates a cross sectional view of an embodiment of an electronic device  900 , showing the electronic device  900  having various structural enhancements, in accordance with some described embodiments. The electronic device  900  may include any features described herein for an electronic device. Similar to prior embodiments, the electronic device  900  may include a display assembly  902  that includes a touch sensitive layer  912  designed to receive a touch input, a display layer  914  designed to present visual information, and a force sensitive layer  916  designed to detect an amount of force applied to, or exerted on, the display layer  914  by way a force applied to at least one of the touch sensitive layer  912 , the display layer  204 , and a protective cover  904  that overlays the display assembly  902 . The display assembly  902  may further include a plate  918  secured to the force sensitive layer  916 . As shown, the plate  918  is below the force sensitive layer  916 . However, in some embodiments (not shown), the plate  918  is positioned between the display layer  914  and the force sensitive layer  916 . 
     The plate  918  may include a rigid material, such as metal or plastic. The plate  918  may provide structural support and stiffness to the display assembly  902 . As a result, the plate  918  may shield the display assembly  902  from impact due to another component (not shown) in the electronic device  900  when the electronic device  900  is dropped. Also, the plate  918  may prevent bending of the layers of the display assembly  902 , which in turn may prevent the layers from overcoming adhesive bonds and peeling away from each other. 
     In some embodiments, an electronic device includes a flexible circuit coupled to a touch input layer. In order to limit movement of the flexible circuit, an adhesive is applied to a supporting element (embedded in a frame) to adhere the flexible circuit with the supporting element. However, the adhesive is known to shrink upon curing. The shrinking effect of the adhesive may provide a pulling force to the flexible circuit, which in turn causes an unwanted pulling force to other components, which may alter the position of some components or even damage some components. 
     Generally, the amount of shrinking of the adhesive (from an uncured state to a cured state) depends on the amount of adhesive used. In order to reduce the pulling force caused by shrinking, electronic devices may be modified to limit the amount of adhesive required. For example,  FIG. 14  shows the electronic device  900  having a plate  928  positioned between a flexible circuit  922  (similar to the first flexible circuit  212  shown in  FIG. 5 ) and a supporting element  958  embedded in a frame  954 . The plate  928  can be positioned between the supporting element  958  and an adhesive  930  disposed on the supporting element  958 . The plate  928  may include a metal plate used as a shim that can be secured to the flexible circuit  922 . The plate  928  may occupy space between the flexible circuit  922  and the supporting element  958  that would otherwise be occupied by the adhesive  930 . In this manner, an amount of adhesive  930  used can be reduced, and accordingly, the shrinking effect caused by the adhesive  930  is also reduced. Also, the plate  928  is designed and positioned to absorb some forces that would otherwise impact the display assembly  902 . As a result, the plate  928  may limit or prevent visual issues, such as display artifacts, when the display assembly  902  is on and is presenting visual information. 
     Similar to prior embodiments, the display layer  914  extends beyond the force sensitive layer  916  and includes a bend. However, as shown in  FIG. 14 , the display layer  914  may include a first material  932  covering a surface of the display layer  914 . The first material  932  may include a potting material that protects the display layer  914 , and in particular the bent region of the display layer  914 , from external forces. In order to supply the first material, a needle (not shown) can be inserted into a location within the bend region of the display layer  914 . The needle can disperse the material while being pulled out of the electronic device  900 . 
     The display layer  914  may further include a second material  934  covering a surface of the display layer  914  include several metal traces (not labeled). The second material  934  is designed to provide a compression force to the metal traces, and prevent tension forces from acting on the metal traces, thereby preventing damage to the metal traces. Also, the second material  934  may provide stiffness and structural support to the display layer  914 . 
       FIG. 15  illustrates a plan view of an embodiment of an electronic device  1000 , showing a plate  1018  positioned in an enclosure  1010  of the electronic device  1000 , in accordance with some described embodiments. For purposes of illustration, several features—including a transparent cover and a display assembly—are removed. The electronic device  1000 , the enclosure  1010 , and the plate  1018  may include any features described herein for an electronic device, an enclosure, and a plate, respectively. The plate  1018  is designed for use with a display assembly (now shown). In this regard, the plate  1018  may include any features previously described for the plate  918  (shown in  FIG. 14 ). 
     The plate  1018  may include a notch  1020  designed to receive part of a display assembly. As an example, the notch  1020  may receive the bending regions of a display assembly (similar to the display assembly  102 , shown in  FIG. 5 ) and/or flexible circuits (such as the first flexible circuit  212 , shown in  FIG. 5 ) associated with the display assembly. In other words, the bending regions associated with the display assembly may bend around the plate  1018  along a planar edge  1022  of the plate  1018  and avoid contacting the enclosure  1010 . Accordingly, the notch  1020  may be referred to as a cut out region of the plate  1018 . 
     Additionally, the plate  1018  may include extensions, such as a first extension  1024  and a second extension  1026 . As shown, the first extension  1024  and the second extension  1026  extend beyond a planar edge  1028  of the plate  1018 . A display assembly (not shown) may include bending regions and flexible circuits that bend around the planar edge  1028  in a manner previously described, and can be positioned between the first extension  1024  and the second extension  1026 . The first extension  1024  and the second extension  1026  expand the plate  1018  in the y-dimension. In this manner, an external force applied to the electronic device  1000  with a force component in the y-dimension may cause the plate  1018  (and a display assembly carried by the plate  1018 ) to shift relative to the enclosure  1010  in the y-dimension. However, the first extension  1024  and the second extension  1026  are designed to engage a sidewall component  1014  (similar to the second sidewall component  114  shown in  FIG. 1 ) of the enclosure  1010  prior to the bending regions of the display assembly and/or flexible circuits engaging the enclosure  1010 . As a result, damage and/or electrical disconnections of the display assembly may be prevented. 
       FIG. 16  illustrates a partial side view of the electronic device  1000  shown in  FIG. 15 , further showing the first extension  1024  of the plate  1018  secured with a display assembly  1002 . As shown, the display assembly  1002  may curve around the plate  1018 . Also, the plate  1018  may extend laterally, in the y-dimension, beyond the display assembly  1002  and a frame  1054  that secures a protective cover  1004  over the display assembly  1002 . As a result, the first extension  1024  and the second extension  1026  (shown in  FIG. 15 ) may combine to provide a buffer for the display assembly  1002  against a force applied to the display assembly  1002  that causes the display assembly to move toward the sidewall component  1014  of the enclosure  1010  (labeled in  FIG. 15 ). The frame  1054 , the protective cover  1004 , and the display assembly  1002  may include any features previously described for a frame, a protective cover, and a display assembly, respectively. 
       FIG. 17  illustrates a cross sectional view of an embodiment of an electronic device  1100 , showing the electronic device  1100  with an enclosure  1110  and a support structure  1120  integrally formed with the enclosure  1110 , in accordance with some described embodiments. For purposes of simplicity, some features and components of the electronic device  1100  are not shown. However, the electronic device  1100  and the enclosure  1110  may include any features described herein for an electronic device and an enclosure, respectfully. Unlike prior embodiments of an electronic device having a frame that secures to an enclosure, the support structure  1120  can be part of the enclosure  1110 . In some embodiments, the enclosure  1110  is formed from a metal, such as aluminum or an alloy that includes aluminum. In the embodiment shown in  FIG. 17 , the enclosure  1110  is formed from ceramic. A ceramic material may provide a robust housing while also minimizing the effects of RF interference with an antenna assembly (not shown) of the electronic device  1100 . 
     The support structure  1120  can receive and support a protective cover  1104  (similar to the first protective layer  104  shown in  FIG. 1 ). Also, the support structure  1120  may include a notch  1156  designed to receive bending regions of a display assembly  1102  and/or bending regions of a flexible circuit  1112  used with the display assembly  1102 . The notch  1156  may extend circumferentially around the display assembly  1102 . Accordingly, the notch  1156  may be integrated into the enclosure  1110 . This may reduce the associated costs and manufacturing times associated with the use of a frame. 
       FIG. 18  illustrates a plan view of an embodiment of a protective cover  1204 , in accordance with some described embodiments. The protective cover  1204  may include any features described herein for a protective cover and/or a protective layer. Accordingly, the protective cover  1204  may include a transparent material, such as glass, sapphire, plastic, or the like. In this regard, the protective cover  1204  is designed to overlay a display assembly (not shown). The protective cover  1204  may include a base portion and a notch (shown below) defined in part by a dotted line  1206 . 
       FIG. 19  illustrates a cross sectional view of the protective cover  1204  shown in  FIG. 18  taken along line B-B, further showing a notch  1208  formed in the protective cover  1204 . The notch  1208  may define a cavity that extends partially into the material that forms the protective cover  1204 . In this manner, the notch may receive, or at least partially receive, a display assembly. This will be further shown below. Also, the protective cover  1204  may include a base portion  1212  that extends around the notch  1208 . 
       FIG. 20  illustrates a cross sectional view of an embodiment of an electronic device  1200 , showing the protective cover  1204  (shown in  FIGS. 18 and 19 ) secured with an enclosure  1210 , in accordance with some described embodiments. For purposes of simplicity, some features and components of the electronic device  1200  are not shown. However, the electronic device  1200  may include any features described herein for an electronic device. As shown, the electronic device  1200  may include a display assembly  1202  secured to the protective cover  1204 , and positioned in the notch  1208 . The display assembly  1202  may partially fit into the notch  1208 , or may fully fit into the notch  1208 , depending upon the desired configuration. By fitting the display assembly  1202  into the notch  1208  of the protective cover  1204 , the protective cover  1204  may increase the protection provided to the display assembly  1202  by covering multiple dimensions of the display assembly  1202 . As a result, impact forces to the electronic device  1200  may be absorbed, or at least partially absorbed, by the protective cover  1204  prior to any impact to the display assembly  1202 . Also, by modifying the protective cover  1204 , the design modifications to other components may be limited, which reduces manufacturing and engineering costs. Also, the frame  1254  may not require a notch (such as the notch  156 , shown in  FIG. 5 ), and accordingly, may provide additional support to the protective cover  1204 . 
       FIG. 21  illustrates a cross sectional view of an embodiment of an electronic device  1300 , showing a protective cover  1304  extending over a frame  1354  and positioned proximate to a sidewall component  1314 , in accordance with some described embodiments. The electronic device  1300 , the sidewall component  1314 , and the frame  1354  may include any features described herein for an electronic device, a sidewall component, and a frame, respectively. As shown, the frame  1354  can be modified and reduced in size to allow the protective cover  1304  to extend over the frame  1354  and border the sidewall component  1314 . This allows the protective cover  1204 , and in particular a curved portion  1306  of the protective cover  1304 , to receive direct protection from the sidewall component  1314 , as opposed to the frame  1354  extending between the sidewall component  1314  and the protective cover  1304  (as shown in other embodiments). Also, the protective cover  1304  may define an extended protective cover having a relatively greater length in the y-dimension. This may allow for modification to the display assembly  1302  of the electronic device  1300  to also increase in size in the y-dimension. Alternatively, or in combination, the extended length of the protective cover  1304  and the display assembly  1302  may promote a symmetric-appearing display assembly, which may also allow for modification to a display frame (not shown) that partially covers the symmetric-appearing display assembly. By providing a display assembly that is symmetric, the overall appearance of the electronic device  1300  may be enhanced. 
       FIG. 22  illustrates an exploded view of the battery assembly  160 , in accordance with some described embodiments. As shown, the battery assembly  160  may include a first cover element  1402  and a second cover element  1404 , with the first cover element  1402  sealed with the second cover element  1404  to form a housing that shields the internal components of the battery assembly  160 . The housing formed by the first cover element  1402  and the second cover element  1404  may define a cavity to receive and enclose internal components. For example, the battery assembly  160  may further include a first electrode  1406  and a second electrode  1408  separate from the first electrode  1406  (such that each of the first electrode  1406  and the second electrode  1408  include a single piece electrode), with a separator  1410  that provides some physical isolation between the first electrode  1406  and the second electrode  1408 , while still allowing the flow of electrical charge between the first electrode  1406  and the second electrode  1408 . As commonly known in the art for a battery, one of the first electrode  1406  and the second electrode  1408  includes an anode, while the remaining electrode (of the first electrode  1406  and the second electrode  1408 ) includes a cathode. Also, as commonly known, electrodes can be used to convert chemical energy into electricity for use by an electronic device (such as the electronic device  100 , shown in  FIG. 1 ). Further, the battery assembly  160 , and battery assemblies described herein, may include a rechargeable battery assembly designed for reuse subsequent to the battery assembly  160  receiving electrical energy from an external source. The battery assembly  160  may further include a circuit board  1412  that includes one or more circuits designed to monitor electrical current flowing into and out of the battery assembly  160 . Also, the circuit board  1412 , as well as components of the circuit board  1412 , may be in electrical communication with the circuit board assembly  170  (shown in  FIG. 4 ). 
     Also, the first cover element  1402  may form a channel  164  that provides additional space, in the z-dimension, for a component (not shown), such as a flexible circuit. In other words, a dimension (such as the height) of the battery assembly  160  is reduced in a location corresponding to the channel  164 , while still providing ample room for the circuit board  1412  to be positioned below the channel  164 . In this manner, the component may be positioned across the channel  164 , thereby allowing a rearrangement of other components in the electronic device  100  (shown in  FIG. 1 ) to create additional room for the battery assembly  160 . As a result, the battery assembly  160  may include a large size, which corresponds to greater charge capacity. While the first cover element  1402  and the second cover element  1404  may provide a shield, including an electrical shield, the aforementioned cover elements may allow for some electrical connections. For example, the first cover element  1402  may include an opening  1414  proximate to the circuit board  1412 . Also, although not shown, the first cover element  1402  and/or the second cover element  1404  may include an additional opening to allow an additional component (or components) to electrically couple with the battery assembly  160 . While traditional battery electrodes include a generally rectilinear shape, the electrodes in the battery assembly  160 , and battery assemblies described herein, may include different shapes. For example, as shown in  FIG. 22 , the first electrode  1406  and the second electrode  1408  include an “L-shaped configuration,” in which at least one surface include six different sides. This will be further discussed below. 
       FIG. 23  illustrates a plan view of the first electrode  1406  shown in  FIG. 22 . As shown, the first electrode  1406  includes L-shaped configuration. In this regard, the first electrode  1406  may include a first part  1420 , or first rectangular portion, and a second part  1422 , or second rectangular portion, extending from the first part  1420 . The dotted line denotes an interface region between the first part  1420  and the second part  1422 . In some embodiments (not shown), the size of the first part  1420  is the same as, or substantially similar to, the second part  1422 . However, in the embodiment shown in  FIG. 23 , the size of the first part  1420  is greater than that of the second part  1422 . 
     The first electrode  1406  may also be characterized as including a first wall  1434  having a first dimension  1444 , and a second wall  1436  having a second dimension  1446 . As shown, the first wall  1434  is parallel, or at least substantially parallel, with respect to the second wall  1436 , and the second dimension  1446  is less than the first dimension  1444 . Also, the first electrode  1406  may include a third wall  1438  (separating the first wall  1434  from the second wall  1436 ) having a third dimension  1448 , and a fourth wall  1440  having a fourth dimension  1450 . As shown, the third wall  1438  is parallel, or at least substantially parallel, with respect to the fourth wall  1440 , and the fourth dimension  1450  is less than the third dimension  1448 . Further, the first electrode  1406  may include a fifth wall  1442  parallel, or at least substantially parallel, with respect to the third wall  1438 . The fifth wall  1442  may include a fifth dimension  1452  that is less than the third dimension  1448 . As shown in  FIG. 23 , the fourth dimension  1450  and the fifth dimension  1452  may combine to equal the third dimension  1448 . Also, the third wall  1438  is perpendicular, or at least substantially perpendicular, with respect to the first wall  1434  and the second wall  1436 . In some embodiments (not shown), the first dimension  1444  is the same as the second dimension  1446 . Still, in some embodiments (not shown), the first dimension  1444  is less than the second dimension  1446 . Also, it should be noted that the second electrode  1408  (shown in  FIG. 22 ), and any additional electrode(s) and separator(s) included in the battery assembly  160  (shown in  FIG. 22 ), may include the same size and shape as, or a size and shape substantially similar to, that of the first electrode  1406 . 
       FIG. 24  illustrates a plan view of an alternate embodiment of an electrode  1506  suitable for use in a battery assembly, in accordance with some described embodiments. As shown, the electrode  1506  may include a “C-shaped configuration.” In this regard, the electrode  1506  may include a first part  1520 , or first rectangular portion. The electrode  1506  may further include a second part  1522 , or second rectangular portion, and a third part  1524 , or third rectangular portion, both of which extend perpendicular, or substantially perpendicular, with respect to the first part  1520 . The dotted lines denote interface regions between the first part  1520  and the second part  1522 , as well as between the first part  1520  and the third part  1524 . In some embodiments (not shown), the size of the first part  1520  is the same as, or substantially similar to, the second part  1522  and the third part  1524 . However, in the embodiment shown in  FIG. 24 , the size of the first part  1520  is greater than that of the second part  1522 , and also greater than that of the third part  1524 . Also, as shown in  FIG. 24 , the size of the second part  1522  is the same as, or substantially similar to, that of the third part  1524 . However, in some embodiments (not shown), the size of the second part  1522  may vary from that of the third part  1524 . For example, the size of the second part  1522  may be larger or smaller than the size of the third part  1524 . 
     The electrode  1506  may also be characterized as including a first wall  1534  having a first dimension  1544 , and a second wall  1536  having a second dimension  1546 . As shown, the first wall  1534  is parallel, or at least substantially parallel, with respect to the second wall  1536 , and the second dimension  1546  includes a length that is the same, or at least substantially similar, to that of first dimension  1544 . Also, the electrode  1506  may include a third wall  1538  (separating the first wall  1534  from the second wall  1536 ) having a third dimension  1548 , a fourth wall  1540  having a fourth dimension  1550 , and a fifth wall  1542  having a fifth dimension  1552 . As shown, the third wall  1538  is parallel, or at least substantially parallel, with respect to the fourth wall  1540  and the fifth wall  1542 . Also, each of the fourth dimension  1550  and the fifth dimension  1552  is less than the third dimension  1548 . Also, the third wall  1538  is perpendicular, or at least substantially perpendicular, with respect to the first wall  1534  and the second wall  1536 . As shown in  FIG. 24 , the first dimension  1544  is the same as the second dimension  1546 . However, the first dimension  1544  may differ from the second dimension  1546 , such as being less than or greater than. Further, the electrode  1506  may include a sixth wall  1562  parallel, or at least substantially parallel, with respect to the third wall  1538 . The sixth wall  1562  may include a sixth dimension  1572  that is less than the third dimension  1548 . As shown in  FIG. 24 , the fourth dimension  1550 , the fifth dimension  1552 , and the sixth dimension  1572  may combine to equal the third dimension  1548 . Also, it should be noted that any additional electrode(s) and separator(s) included in a battery assembly (not shown) may include the same size and shape as, or a size and shape substantially similar to, that of the electrode  1506 . 
       FIG. 25  illustrates a plan view of an alternate embodiment of an electrode  1606  suitable for use in a battery assembly, in accordance with some described embodiments. As shown, the electrode  1606  may include an “I-shaped configuration.” In this regard, the electrode  1606  may include a first part  1620 , or first rectangular portion, a second part  1622 , or second rectangular portion, and a third part  1624 , or third rectangular portion. The dotted lines denote interface regions between the first part  1620  and the second part  1622 , as well as between the first part  1620  and the third part  1624 . As shown, both the second part  1622  and the third part  1624  extend perpendicular, or substantially perpendicular to, the first part  1620 . Similar to a shape resembling a letter “I”, the first part  1620  may be centered, or substantially centered, with respect to the second part  1622  and the third part  1624 . As shown, the size of the first part  1620  is the same as, or substantially similar to, the second part  1622  and the third part  1624 . However, in some embodiments (not shown), the size of the first part  1620  is different than that of the second part  1622 , and also different than that of the third part  1624 . Also, as shown in  FIG. 25 , the size of the second part  1622  is the same as, or substantially similar to, that of the third part  1624 . However, in some embodiments (not shown), the size of the second part  1622  may vary from that of the third part  1624 . For example, the size of the second part  1622  may be larger or smaller than the size of the third part  1624 . Also, in some embodiments, the third part  1624  is removed from the electrode  1606  such that the electrode  1606  includes a “T-shaped configuration.” 
     The electrode  1606  may also be characterized as including a first wall  1634  having a first dimension  1644 , and a second wall  1636  having a second dimension  1646 . As shown, the first wall  1634  is parallel, or at least substantially parallel, with respect to the second wall  1636 , and the second dimension  1646  includes a length that is the same as, or at least substantially similar to, that of first dimension  1644 . Also, the electrode  1606  may include a third wall  1638  that includes a third dimension  1648 . The third wall  1638  may be perpendicular, or at least substantially perpendicular, with respect to the first wall  1634  and the second wall  1636 , and the third dimension  1648  includes a length that is the same as, or at least substantially similar to, that of first dimension  1644  and the second dimension  1646 . 
     The electrode  1606  may be further characterized as having a first part  1620  aligned with, and symmetrically disposed about, a first longitudinal axis  1652  that extend through the first part  1620 . The term “longitudinal” as used throughout this detailed description and in the claims refers to a direction extending along a major axis of a component, with a “major” dimension corresponding to the greatest (longest) dimension of a part or portion of an electrode. The electrode  1606  may also include a second part  1622  and a third part  1624  aligned with, and symmetrically disposed about, a second longitudinal axis  1654  and a third longitudinal axis  1656 , respectively. The second longitudinal axis  1654  may be aligned parallel with respect to the third longitudinal axis  1656 . Also, the first longitudinal axis  1652  may be perpendicular with respect to the second longitudinal axis  1654  and the third longitudinal axis  1656 . Also, it should be noted that any additional electrode(s) and separator(s) included in a battery assembly (not shown) may include the same size and shape as, or a size and shape substantially similar to, that of the electrode  1606 . 
       FIG. 26  illustrates a plan view of an alternate embodiment of an electrode  1706  suitable for use in a battery assembly, in accordance with some described embodiments. As shown, the electrode  1706  may include an “L-shaped configuration,” similar to that of the first electrode  1406  (shown in  FIG. 23 ). In this regard, the electrode  1706  may a first part  1720 , or first rectangular portion, and a second part  1722 , or second rectangular portion, that extends from the first part  1720  in a perpendicular manner. The dotted line denotes an interface region between the first part  1720  and the second part  1722 . In some embodiments (not shown), the size of the first part  1720  is the same as, or substantially similar to, the second part  1722 . However, in the embodiment shown in  FIG. 26 , the size of the first part  1720  is greater than that of the second part  1722 . Also, the electrode  1706  may further include an opening  1730  defining a void or space in the electrode  1706 . The opening  1730  may allow for a battery assembly (not shown) that includes the electrode  1706 , as well as other electrodes having a similar size and shape as that of the electrode  1706 , to position a component (not shown) at a location corresponding to the opening  1730 . In this manner, the battery assembly may accommodate the component by way of the opening  1730 , when the openings of the electrodes and separators are aligned with one another to form a continuous through hole through the layers of electrodes and separators of the battery assembly. This will be further discussed below. Also, while the opening  1730  is shown in the electrode  1706 , other embodiments, such as the embodiments of an electrode shown in  FIGS. 23-25 , may include an opening. 
     The various embodiments of the electrodes shown and described in  FIGS. 23-26  can be formed by a cutting operation, including die cutting. A die cutting operation may include an electrode sheet undergoing a cutting operation using a die of a predetermined size and shape. The die may include a size and shape corresponding to the size and shape of the electrodes shown in  FIGS. 23-26 . It should be noted that the separators can be die cut in a similar manner. Accordingly, the shape of electrodes described herein may include shapes other a rectilinear shape. In this regard, a battery assembly may include a size and shape in accordance with the electrodes and separators so that the battery assembly can take on various sizes and shape in order to increase the battery assembly size and or/to accommodate other internal components in an electronic device. 
       FIGS. 27-29  illustrate various embodiments of a battery assembly suitable for use with electronic devices described herein. Some components of the electronic devices shown in  FIGS. 27-29  are removed for purposes of illustration. The die cutting operation (described above) used to form the electrodes for the battery assemblies described herein may be cut into various sizes and shapes. In this regard, the battery assemblies may take on different sizes and shapes. Also, the electronic devices and battery assemblies shown in  FIGS. 27-29  may include any component(s) and feature(s) previously described for an electronic device. Also, while a discrete number of embodiments for a battery assembly are shown, several other configurations are possible. 
       FIG. 27  illustrates an embodiment of a battery assembly  1860  in an electronic device  1800 , with the battery assembly  1860  having a shape that accommodates an internal component  1870  of the electronic device  1800 , in accordance with some described embodiments. As shown, the battery assembly  1860  may include a C-shape configuration to accommodate the internal component  1870 , which may include a circuit board assembly (previously described). The term “accommodate” may refer to modifying the size and shape of a component (such as the battery assembly  1860 ) in order to avoid or mitigate modifying the size, shape, and/or position of another component (such as the internal component  1870 ) in the electronic device  1800 . As an example, battery assemblies shown and described herein may accommodate another component(s) by providing space that would otherwise be occupied by a traditional, rectilinear battery. Also, any electrode(s) and separator(s) of the battery assembly  1860  also include a C-shape configuration having a shape similar to that of the electrode  1506  (shown in  FIG. 24 ). Accordingly, the battery assembly  1860  may include a housing defined by one or more cover elements that includes a C-shaped configuration. 
       FIG. 28  illustrates an alternate embodiment of a battery assembly  1960  in an electronic device  1900 , with the battery assembly  1960  having a shape that accommodates multiple internal components of the electronic device  1900 , in accordance with some described embodiments. As shown, the battery assembly  1960  may include an “I-shape” configuration in order to accommodate both a first internal component  1970  and a second internal component  1972 . Each of the first internal component  1970  and the second internal component  1972  may represent a component such as a circuit board, an audio module, a flexible circuit, or a similar component.  FIG. 28  further shows the first internal component  1970  and the second internal component  1972  positioned in different spaces between extensions of the battery assembly  1960 . Also, any electrode(s) and separator(s) of the battery assembly  1960  also include an I-shape configuration having a shape similar to that of the electrode  1606  (shown in  FIG. 25 ). Accordingly, the battery assembly  1960  may include a housing defined by one or more cover elements that includes an I-shaped configuration. 
       FIG. 29  illustrates an alternate embodiment of a battery assembly  2060  in an electronic device  2000 , with the battery assembly  2060  having an opening  2062  that accommodates an internal component  2072  of the electronic device  2000 , in accordance with some described embodiments. As shown, the opening  2062  may include a size and shape such that internal component  2072  can be positioned with a perimeter of the opening  2062 . While the opening  2062  includes a generally circular opening, the opening  2062  may take the form of other shapes, including three- and four-side shapes, as non-limiting examples. Also, as shown in  FIG. 29 , the battery assembly  2060  may include an L-shaped configuration (although other aforementioned shapes are possible) to accommodate an internal component  2070  (which may include a circuit board assembly), and may also include the opening  2062 . The L-shaped configuration of the battery assembly  2060  allows for the internal component  2070  to be positioned at least partially between edges of the battery assembly  2060 , such as a first edge  2064  and a second edge  2066 . Also, a battery assembly that includes an L-shape configuration as well as an opening (similar to the opening  2062 ) may include electrodes and separators aligned with one another and having a shape similar to that of the electrode  1706  (shown in  FIG. 26 ). In other words, any electrode(s) and separator(s) of the battery assembly  2060  also include an L-shape configuration with an opening, similar to that of the electrode  1706  (shown in  FIG. 26 ). Accordingly, the battery assembly  2060  may include a housing defined by one or more cover elements that includes an L-shaped configuration as well as an opening. 
     In addition to having various sizes and shapes (other than a traditional rectilinear shape), the battery assemblies described herein may include additional features. For example,  FIG. 30  illustrates an alternate embodiment a battery assembly  2160  in an electronic device  2100 , with the battery assembly  2160  positioned in an enclosure  2102  (of the electronic device  2100 ) over a first internal component  2172  (shown as a dotted line) of the electronic device  2100 , in accordance with some described embodiments. Due in part to additional room provided by the display layer  204  (shown in  FIG. 5 ), the battery assembly  2160  may cover or overlay some components, such as the first internal component  2172 . Also, in order to accommodate the circuit board assembly  2170  within the enclosure  2102 , the battery assembly  2160  may include an L-shaped configuration. In this manner, the battery assembly  2160  provides a location that accommodates a portion of the circuit board assembly  2170  (also including an L-shaped configuration, as shown herein), whereas an otherwise rectilinear battery may not accommodate the circuit board assembly  2170 . As shown in  FIG. 30 , the circuit board assembly  2170  can “mate” with the battery assembly  2160  similar to puzzle pieces. Also, the battery assembly  2160  may further include a channel  2162  that defines a reduced dimension of the battery assembly  2160 . In this manner, the electronic device  2100  may include a flexible circuit  2164  that passes over the battery assembly  2160 , along the channel  2162 , and electrically couples with the circuit board assembly  2170  as well as a second internal component  2174 , which may include an operational component (such as an audio module, as a non-limiting example), in order to place the second internal component  2174  in electrical communication with the circuit board assembly  2170 . While the flexible circuit  2164  is described as being electrically coupled to the second internal component  2174 , the flexible circuit  2164  may also electrically couple with a third internal component (not shown), such as an antenna. In either event, the channel  2162  formed in the battery assembly  2160  allows for the rearrangement of various internal components. Also, the battery assembly  2160  may include an increased size, corresponding to an increased electrical storage capacity, as the battery assembly  2160  can be positioned over the first internal component  2172 . 
       FIG. 31  illustrates a cross sectional view of the electronic device  2100  shown in  FIG. 30 , taken along line C-C in  FIG. 30 . Due in part to the die cutting operation (described above) for electrodes and separators, the battery assembly  2160  may pass over the first internal component  2172 . Moreover, as shown in  FIG. 31 , a portion of the battery assembly  2160  may lie flat on the enclosure  2102 , while another portion of the battery assembly  2160  covers the first internal component  2172 . In other words, the battery assembly  2160  can elevate over the first internal component  2172 , and also at least partially conform to the size and shape of the first internal component  2172 . Further, the electrodes may also pass over the first internal component  2172 . For example, the battery assembly  2160  includes a first electrode  2182  and a second electrode  2184 , with a separator  2186  positioned between the first electrode  2182  and the second electrode  2184 . As shown in  FIG. 31 , the first electrode  2182 , the second electrode  2184 , and the separator  2186  may pass over the first internal component  2172 . Further, the die cutting operation can form the first electrode  2182  and the second electrode  2184  such that the electrodes terminate prior to entering a location in the battery assembly  2160  corresponding to the channel  2162 , thereby allowing the channel  2162  to reduce the dimensions of the battery assembly  2160  to receive the flexible circuit  2164 . Although not shown, the channel  2162  may include a size and shape to receive two or more flexible circuits in order to electrically couple additional internal components (not shown) with the circuit board assembly  2170  (shown in  FIG. 30 ). Accordingly, the flexible circuit  2164  (or additional flexible circuits) need not be positioned around a perimeter of the battery assembly  2160 . 
       FIG. 32  illustrates an exploded view of the circuit board assembly  170  shown in  FIG. 4 , in accordance with some described embodiments. As shown, the circuit board assembly  170  may include a first circuit board  172  and a second circuit board  174 . In some embodiments, each of the first circuit board  172  and the second circuit board  174  includes a printed circuit board. Also, the first circuit board  172  may be secured with, and positioned over, the second circuit board  174  in a stacked configuration. As shown in  FIG. 32 , the first circuit board  172  includes a size and shape that is the same as, or at least substantially similar to, the size and shape of the second circuit board  174 . However, in some embodiments (not shown), the first circuit board  172  includes at least some differences, as compared to the second circuit board  174 , with regard to size and/or shape. While the stacked configuration of the circuit board assembly  170  increases the footprint of the circuit board assembly  170  in the electronic device  100  (shown in  FIG. 1 ) in the z-dimension, the stacked configuration decreases the footprint of the circuit board assembly  170  in both the x- and y-dimensions. The additional space provided by stacking the aforementioned circuit boards may provide additional space in the electronic device  100  for other components, such as the battery assembly  160  (shown in  FIG. 4 ). Also, the additional space provided by reduced dimensions of the display assembly  102  (shown in  FIG. 5 ) provides room for the circuit board assembly  170 . In other words, additional space in the z-dimension, due in part to the reduced dimensions of the display assembly  102 , allow for the stacked configuration of the circuit board assembly  170 . Although not shown, the circuit board assembly  170  may include three or more circuit boards in a stacked configuration and in electrical communication with each other. 
     The first circuit board  172  and/or the second circuit board  174  may include several operational components. An “operational component” may refer to a component, such as an integrated circuit or processor circuit that performs an operation (or operations) such as executing instructions from a software application that is stored on a memory circuit. An operational component may also refer to a transistor. Operational components on either of the first circuit board  172  and/or the second circuit board  174  may convert electrical energy to thermal energy during operation. However, a thermal distribution assembly (not shown) is designed to remove the thermal energy from the circuit board assembly  170 . This will be discussed below. As shown in  FIG. 32 , the circuit boards may include operational components on multiple surfaces. For example, the first circuit board  172  may include a first mounting surface  2202  and a second mounting surface  2204  opposite the first mounting surface  2202 , with the first mounting surface  2202  having a first operational component  2212  and the second mounting surface  2204  having a second operational component  2214  (shown as a dotted line). As shown in  FIG. 32 , both the first mounting surface  2202  and the second mounting surface  2204  may include additional operational components. Also, it should be noted that the operational components on the first circuit board  172  are in electrical communication with each other. The communication means may include, for example, at least one via (not shown) that extends through the first circuit board  172 . 
     The second circuit board  174  may include a first mounting surface  2206  that includes several operational components, such as an operational component  2216 . The second circuit board  174  also includes a second mounting surface  2208  opposite the first mounting surface  2206 . In some embodiments, the second mounting surface  2208  includes an operational component (or components) in electrical communication with the operational components located on the first mounting surface  2206 . Also, it should be noted that when the circuit board assembly  170  is assembled, the second circuit board  174  is overlaid (or covered) by the first circuit board  172  in the stacked configuration. However, it should be noted that the first circuit board  172  is still separated from the second circuit board  174  by at least some gap or space. Also, when the circuit board assembly  170  is assembled, the first mounting surface  2206  of the second circuit board  174  is facing the second mounting surface  2204  of the first circuit board  172 , and vice versa. 
     The first circuit board  172  may mechanically connect with the second circuit board  174  by several standoffs connected with rivets. For example, as shown in  FIG. 32 , the second circuit board  174  includes a first standoff  2222  designed to connect with a first rivet  2224  located on the first circuit board  172 . Each of the remaining standoffs (not labeled) shown in  FIG. 19  may connect with a rivet (not labeled) shown in  FIG. 32 . The standoffs are designed to not only provide mechanical connections, but also to maintain a desired distance between the first circuit board  172  and the second circuit board  174  such that components on the second mounting surface  2204  of the first circuit board  172  do not interfere (physically) with components on the first mounting surface  2206  of the second circuit board  174 , and vice versa. Also, the positioning of the standoffs and the rivets may be reversed such that the first circuit board  172  includes the standoffs and the second circuit board  174  includes the rivets. 
     In order to electrically couple the first circuit board  172  with the second circuit board  174 , several interposers may be used to route electrical signals between the first circuit board  172  and the second circuit board  174 . For example, as shown in  FIG. 32 , the second circuit board  174  may include several interposers, such as an interposer  2232 , electrically with the second circuit board  174  by, for example, a soldering operation. Several additional interposers (not labeled) are shown. Also, although not shown, the second circuit board  174  may include several metal traces that electrically couple the interposers with one or more operational components on the second circuit board  174 . Also, when the first circuit board  172  is electrically coupled to the second circuit board  174 , each of the interposers may electrically couple with one or more metal traces (not shown) on the second mounting surface  2204  of the first circuit board  172 . 
     The circuit board assembly  170  may include several shielding elements that shield the components of the circuit board assembly  170  from electromagnetic interference (“EMI”). For example, the circuit board assembly  170  may include a first shielding element  2242  that covers components located on the first mounting surface  2202  of the first circuit board  172 . The first shielding element  2242  may include a metal-based material designed to provide an EMI shield to the components on the first mounting surface  2202 . The circuit board assembly  170  may further include a second shielding element  2244  designed to provide an EMI shield for components located on the second mounting surface  2204  of the first circuit board  172  and the first mounting surface  2206  of the second circuit board  174 . The second shielding element  2244  may include a metal, such as copper or brass. The second shielding element  2244  may secure with (and between) the first circuit board  172  and the second circuit board  174  by several solder joints disposed on each circuit board. For example,  FIG. 32  shows the second circuit board  174  having a first solder joint  2250  positioned around an outer perimeter of the second circuit board  174 . Several additional solder joints in addition to the first solder joint  2250  are shown but not labeled. The first circuit board  172  may also include solder joints (not shown) in locations corresponding to the solder joints on the second circuit board  174 . In some embodiments, the second shielding element  2244  includes several discontinuous structural elements. In the embodiment shown in  FIG. 32 , the second shielding element  2244  may include a single, continuous structural component designed to extend along an outer perimeter of the circuit board assembly  170 . Alternatively, the second shielding element  2244  may include several shielding element parts that combine with one another to form the second shielding element  2244 . 
     The circuit board assembly  170  may further include a third shielding element  2246  positioned on the second mounting surface  2208  of the second circuit board  174 . The third shielding element  2246  is designed to combine with the first shielding element  2242  and the second shielding element  2244  to provide an EMI shield to the circuit board assembly  170 . Also, the second mounting surface  2208  of the second circuit board  174  may include metal traces (throughout the second mounting surface  2208 ). In this regard, in addition to forming an EMI shield, the third shielding element  2246  may define at least part of an electrical ground path for the circuit board assembly  170 , as the third shielding element  2246  is electrically connect to the second mounting surface  2208  by way of the metal traces. Also, when the component (or components) of the circuit board assembly  170  generates EMI during operation, the aforementioned shielding elements may shield components of the electronic device  100  (shown in  FIG. 1 ) that are external with respect to the circuit board assembly  170  from EMI generated by the component(s) of the circuit board assembly  170 . 
       FIG. 33  illustrates a cross sectional view of the circuit board assembly  170  shown in  FIG. 32 , showing various internal components of the circuit board assembly  170 . As shown, the first circuit board  172  may be separated from the second circuit board  174  by a standoff  2226 . Further, in order to mechanically couple the first circuit board  172  with the second circuit board  174 , the standoff  2226  can be mechanically coupled with the a rivet  2228 , with the standoff  2226  and the rivet  2228  electrically isolated from the components of the first circuit board  172  and the second circuit board  174 . 
     The first circuit board  172  may include a via  2218  formed from a metal to provide an electrical connection between the first operational component  2212  and the second operational component  2214 . Also, the first circuit board by  172  may be in electrical communication with the second circuit board  174  by way of an interposer  2234 . As shown, the interposer  2234  may electrically and mechanically connect with a first solder joint  2262  located on the first circuit board  172 , and may also electrically and mechanically connect with a second solder joint  2264  located on the second circuit board  174 . In addition to the interposer  2234 , several additional interposers (not shown) may be used to carry signals between the circuit boards. The first circuit board  172  may include a first metal trace  2272  electrically connected with the second operational component  2214  as well as the via  2218 , and the second circuit board  174  may include a second metal trace  2274  electrically connected with a third operational component  2220  located on the second circuit board  174 . In this manner, the third operational component  2220  may electrically communicate with the second operational component  2214  by way of the interposer  2234  and the metal traces. The third operational component  2220  may electrically communicate with the first operational component  2212  by way of the via  2218 , the interposer  2234 , and the metal traces. The circuit board assembly  170  may use several additional metal traces, vias, and solder joints to provide additional electrical communication pathways. 
       FIG. 34  illustrates an alternative embodiment of a circuit board assembly  2370 , showing the circuit board assembly  2370  modified for ingress protection. The circuit board assembly  2370  may include any components and features previously described for a circuit board assembly, such as a first circuit board  2372  and a second circuit board  2374 . However, as shown in  FIG. 34 , the circuit board assembly  2370  may include a potting material  2390  embedded in the circuit board assembly  2370  between the first circuit board  2372  and a second circuit board  2374 . The potting material  2390  may include resin that cures to form a liquid-resistant shield for the various operational components of the circuit board assembly  2370 , such as an operational component  2314 . In this regard, the potting material  2390  may prevent damage caused by liquid ingress to the circuit board assembly  2370 , and in particular, to the components of the circuit board assembly  2370 . Further, the potting material  2390  may extend to a first shielding element  2342  and a second shielding element  2344  of the circuit board assembly  2370 , in order to prevent corrosion to components, such as a standoff  2326 . The potting material  2390  may be used with the circuit assemblies described herein. 
       FIG. 35  illustrates an alternate embodiment of a circuit board assembly  2470 , showing the circuit board assembly  2470  having a flexible circuit  2402  electrically coupled with the circuit boards of the circuit board assembly, in accordance with some described embodiments. The circuit board assembly  2470  may include any components and/or features previously described for a circuit board assembly. For example, as shown, the circuit board assembly  2470  may include a first circuit board  2472  and a second circuit board  2474 . The circuit board assembly  2470  may further include a first shielding element  2442  disposed over the first circuit board  2472  and at least some of its components. The circuit board assembly  2470  may further include a second shielding element  2444  covering a gap between the first circuit board  2472  and the second circuit board  2474 . The circuit board assembly  2470  may further include a third shielding element  2446  disposed over the second circuit board  2474 . However, rather than using interposers for electrical communication between the first circuit board  2472  and the second circuit board  2474  (and their respective components), the circuit board assembly  2470  in  FIG. 35  uses the flexible circuit  2402  for communication of electrical signals between the operational components located on the first circuit board  2472  and/or the second circuit board  2474 . 
     The flexible circuit  2402  may electrically and mechanically couple with the first circuit board  2472  and form a loop to electrically and mechanically couple with the second circuit board  2474 . The electrical and mechanical coupling may be performed using a hot bar soldering operation. A thermode (not shown) may be used as a “hot bar” that is heated in order to supply thermal energy to the flexible circuit  2402  and to soldering elements (not shown) on the first circuit board  2472  and the second circuit board  2474 , resulting in an electro-mechanical connection of the flexible circuit  2402  to the first circuit board  2472  and the second circuit board  2474 . It should be noted that multiple hot bar soldering operations may be used to couple the flexible circuit  2402  with the first circuit board  2472  and the second circuit board  2474 . 
       FIG. 36  illustrates a cross sectional view of the circuit board assembly  2470  shown in  FIG. 35 , taken along line D-D, showing the flexible circuit  2402  extending between the circuit boards. As shown, the flexible circuit  2402  is electro-mechanically coupled with a first solder joint  2412  and a second solder joint  2414 , located on the first circuit board  2472  and the second circuit board  2474 , respectively. Also, the first solder joint  2412  may electrically couple with a first metal trace  2422  on the first circuit board  2472 , and the second solder joint  2414  may electrically couple with a second metal trace  2424  on the second circuit board  2474 . As a result, the flexible circuit  2402  may electrically couple with several operational components (not shown), some of which are electrically coupled with the first metal trace  2422  and located on the first circuit board  2472 , and some of which are electrically coupled with the second metal trace  2424  and located on the second circuit board  2474 . 
       FIG. 37  illustrates a cross sectional view of an alternate embodiment of a circuit board assembly  2570 , showing internal components of the circuit board assembly  2570  having corresponding geometries, in accordance with some described embodiments. The circuit board assembly  2570  may include any components and/or features previously described for a circuit board assembly. For example, the circuit board assembly  2570  may include a first circuit board  2572  and a second circuit board  2574 , with the first circuit board  2572  in electrical communication with the second circuit board  2574  by way of an interposer  2520 . Additional interposers (not shown) may electrically couple the first circuit board  2572  (and components thereon) with the second circuit board  2574  (and components thereon). The first circuit board  2572  may include a first mounting surface  2502  having a first operational component  2512  and a second mounting surface  2504  (opposite the first mounting surface  2502 ) that includes a second operational component  2514  electrically coupled to a metal trace (not labeled). Further, the second circuit board  2574  may include a third operational component  2516  electrically coupled to a metal trace (not labeled), with the third operational component  2516  and the metal trace located on a first mounting surface  2506  of the second circuit board  2574 . 
     As shown in  FIG. 37 , the second operational component  2514  and the third operational component  2516  may be in a nested configuration. For example, the third operational component  2516  may include a protrusion  2518  that at least partially extend into a recess  2522  of the second operational component  2514 . The corresponding geometry between the second operational component  2514  and the third operational component  2516  may allow for a reduced dimension (or reduced height) of the circuit board assembly  2570 , thereby reducing the overall space occupied by the circuit board assembly  2570  in an electronic device (not shown). In other words, the separation or gap between the first circuit board  2572  and the second circuit board  2574  may decrease, as compared to prior embodiments, due to the corresponding, or nested, configurations of the components of the first circuit board  2572  and the second circuit board  2574  in a manner similar to that of the second operational component  2514  and the third operational component  2516 . 
     Also, in some instances, components on different circuit boards may electrically and mechanically couple with one another by direct means. For example,  FIG. 37  further shows the first circuit board  2572  having a fourth operational component  2534  located on the second mounting surface  2504 , and a fifth operational component  2536  located on the first mounting surface  2506  of the second circuit board  2574 . The fourth operational component  2534  may include a recess  2542  and a connector  2544  positioned in the recess  2542 . Further, the fifth operational component  2536  may include a protrusion  2538  that extends into the recess  2542 . The protrusion  2538  may include a connector  2554  that electrically and mechanically couples with the connector  2544 . In this manner, the fourth operational component  2534  is electrically and mechanically coupled with the fifth operational component  2536 . 
     Moreover, when the circuit board assembly  2570  includes operational components, such as the fourth operational component  2534  and the fifth operational component  2536 , the first circuit board  2572  may be electrically coupled to the second circuit board  2574  by way of the fourth operational component  2534  and the fifth operational component  2536 . As a result, the circuit board assembly  2570  may not require interposers (such as the interposer  2520 ) to provide electrical communication between the first circuit board  2572  and the second circuit board  2574 . Further, as shown in  FIG. 37 , the first circuit board  2572  may include a via  2546  electrically coupled with fourth operational component  2534  as well as a metal trace (not labeled). In this manner, the first operational component  2512  may electrically connect to the fifth operational component  2536  by way of the metal trace, the via  2546 , and the fourth operational component  2534 . It should be noted that in some embodiments, the circuit board assembly  2570  includes either a combination of the second operational component  2514  and the third operational component  2516 , as well as the fourth operational component  2534  and the fifth operational component  2536 . 
       FIG. 38  illustrates a cross sectional view of an alternate embodiment of a circuit board assembly  2670 , showing the circuit board assembly  2670  having several solder masks used to support a circuit board, an accordance with some described embodiments. The circuit board assembly  2670  may include any components and/or features previously described for a circuit board assembly. For example, the circuit board assembly  2670  may include a first circuit board  2672  and a second circuit board  2674 . Further, each the first circuit board  2672  and the second circuit board  2674  may include several solder joints (not labeled), with an interposer electrically coupled with a solder joint from the first circuit board  2672  and with a solder joint from the second circuit board  2674 . For example,  FIG. 38  shows the circuit board assembly  2670  having a first interposer  2602  electrically and mechanically coupled with a solder joint (not labeled) on the first circuit board  2672  and the second circuit board  2674 , a second interposer  2604  electrically and mechanically coupled with a solder joint (not labeled) on the first circuit board  2672  and the second circuit board  2674 , and a third interposer  2606  electrically and mechanically coupled with a solder joint (not labeled) on the first circuit board  2672  and the second circuit board  2674 . 
     In order to prevent oxidation of the solder joints and/or to prevent solder “bridges” from forming between adjacent solder joints during a soldering operation, the circuit board assembly  2670  may include several soldering masks. For example, the circuit board assembly  2670  may include a first solder mask  2622  between the first interposer  2602  and the second interposer  2604 , and a second solder mask  2624  between the second interposer  2604  and the third interposer  2606 . Based on their positions, the first solder mask  2622  may prevent a solder bridge from forming between the first interposer  2602  and the second interposer  2604  (thereby preventing unwanted electrical coupling between the first interposer  2602  and the second interposer  2604 ), and the second solder mask  2624  may prevent a solder bridge from forming between the second interposer  2604  and the third interposer  2606  (thereby preventing unwanted electrical coupling between the second interposer  2604  and the third interposer  2606 ). Moreover, the first solder mask  2622  and the second solder mask  2624  may provide a support structure that maintains a desired distance or separation between the first circuit board  2672  and the second circuit board  2674 . Further, in order to maintain the first circuit board  2672  with the second circuit board  2674 , both the first circuit board  2672  and the second circuit board  2674  may clamp onto ends of the first solder mask  2622  and the second solder mask  2624 . The interposers, solder joints, and solder masks may be representative of several additional interposers, solder joints, and solder masks, respectively. 
       FIG. 39  illustrates an isometric view of an embodiment of an audio module  2700 , in accordance with some described embodiments. The audio module  2700  may be used in place of the first audio module  182  (shown in  FIG. 4 ). The audio module  2700  may be used as a receiver module designed to generate acoustical energy in the form of audible sound. Generally, a receiver module is used in low power applications associated with relatively low frequency output. However, the audio module  2700  may include modifications for enhanced audio performance associated with an audio speaker module. 
     The audio module  2700  may include an audio module housing  2702  having an audio module opening  2704 . The audio module housing  2702  may define an internal acoustical volume partitioned into a front volume and a back volume. This will be shown below. The audio module housing  2702  may carry a diaphragm  2706 , or membrane, designed to vibrate, thereby generating acoustical energy in the form of audible sound. Accordingly, the diaphragm  2706  may be referred to as a membrane, or acoustical membrane. The diaphragm  2706  may include additional thickness to handle additional vibrational energy (associated with additional power supplied to the audio module  2700 ), and accordingly, additional audio frequencies. Also, the audio module opening  2704  may represent a single, unaltered opening in the audio module housing  2702 , and any other openings in the audio module housing  2702  (used for wiring and electrical communication, as an example) may be air-sealed and liquid-sealed. In this regard, the diaphragm  2706  may be prevented from unwanted vibration due to air entering the audio module housing  2702  during a change in air pressure inside an electronic device (not shown). This will be further illustrated below. Also, in some embodiments, the diaphragm  2706  includes a liquid-resistant diaphragm (or liquid-resistant membrane) designed to withstand damage due to expose to liquids, such as water. 
       FIG. 40  illustrates a cross sectional view of the audio module  2700  shown in  FIG. 39 , taken along line D-D in  FIG. 39 , showing several internal features of the audio module  2700 . As shown, the audio module  2700  includes a sound coil  2708  and a magnet  2710 . The sound coil  2708  is designed to receive an alternating electrical current to form an electromagnet with an alternating magnetic polarity. The alternating magnetic polarity may cause the sound coil to vibrate based on interaction (attraction and repulsion) with an external magnetic field of the magnet  2710 . 
     The diaphragm  2706  is positioned in the audio module housing  2702  and separates an acoustical volume (defined in part by the audio module housing  2702 ) into a front volume  2720  and a back volume  2722 . As shown, the front volume  2720  may open to the audio module opening  2704 , while the back volume  2722  is sealed from the audio module opening  2704 . Further, when the audio module  2700  is positioned in the electronic device  100  (shown in  FIG. 1 ), the audio module housing  2702  can seal components of the audio module  2700  from air in the electronic device  100  so that, for example, the diaphragm  2706  is not acoustically driven, or otherwise influenced, by air pressure changes in the electronic device  100 . As shown, the front volume  2720  and the back volume  2722  may be shielded from air pressure changes in the electronic device  100 . However, when the diaphragm  2706  vibrates to create acoustical energy, the acoustical energy exits the audio module opening  2704 . Also, in some embodiments, the audio module  2700  includes an air vent  2730  that allows air into the back volume  2722  (by way of air entering the audio module opening  2704 ), and out of the back volume  2722  to the audio module opening  2704  such that the back volume  2722  can equilibrate with ambient air when the air pressure of the external ambient air changes. Also, while the audio module  2700  may substitute for the first audio module  182  (shown in  FIG. 4 ), the audio module  2700  may include different designs and shapes such that the audio module  2700  may also substitute for the second audio module  184  (shown in  FIG. 4 ). 
       FIG. 41  illustrates a cross sectional view of the electronic device  100 , showing the audio module  2700  positioned in the electronic device  100 . As shown, the audio module  2700 , and in particular, the audio module opening  2704 , is aligned with at least the one of the openings  134  (both of which are shown in  FIG. 1 ). Also, a mesh material  2724  may cover the openings  134  and provide an aesthetic finish. Also, in some embodiments, the audio module  2700  is fitted with a bracket  2726 . The bracket  2726  may secure with the audio module  2700  by an adhesive  2728 , which may include a liquid-resistant adhesive to prevent liquid from entering the electronic device  100  around the bracket  2726 . Also, the bracket  2726  may include a sealing element  2732  positioned between the audio module  2700  and the bracket  2726  to form an ingress barrier between the audio module  2700  and the bracket  2726 . In this manner, the audio module  2700  is positioned in the electronic device  100  such that any liquid entering the openings  134  may extend into the front volume  2720  but not into the back volume  2722 . Also, any air entering the openings  134  may extend into both the front volume  2720  and the back volume  2722 , with the latter using the air vent  2730  to receive air. The air vent  2730  may allow air to exit the back volume  2722  as well. Accordingly, the audio module  2700  may provide acoustical energy while preventing liquid ingress into the electronic device  100 . Also, any acoustical energy generated by the diaphragm  2706  can exit the audio module  2700  via the audio module opening  2704 , and can also exit the electronic device  100  via the openings  134 . 
     Further, as shown in  FIG. 41 , the audio module  2700  can be positioned in the electronic device  100  such that the audio module opening  2704  is exposed only ambient air (external to the electronic device  100 ) that enters the electronic device  100  through the openings  134 . In other words, the audio module housing  2702  is sealed in a manner such that an internal volume change that causes an air pressure change in the electronic device  100  by, for example, depressing the first protective layer  104  and the display assembly  102 , will not cause air to enter the audio module housing  2702 , thereby preventing the diaphragm  2706  from generating unwanted acoustical noise. 
       FIG. 42  illustrates an exploded view of the thermal distribution assembly  190 , in accordance with some described embodiments. The thermal distribution assembly  190  may include several layers of material that provide not only enhanced heat transfer properties, but also structural support. The enhanced heat transfer properties and structural support may be useful when the thermal distribution assembly  190  is used in an electronic device having a substantially non-metal exterior and thus reduced heat transferred capabilities, such as the electronic device  100  having a second protective layer  144  (shown in  FIG. 2 ). In this regard, the thermal distribution assembly  190  can be used in an electronic device to direct thermal energy away from a non-metal bottom wall toward another structural feature of the electronic device, such as the aforementioned sidewall components. 
     As shown, the thermal distribution assembly  190  may include several layers of material. For example, the thermal distribution assembly  190  may include a first layer  2802  formed from a first type material, which may include a durable material, such as stainless steel. The first layer  2802  may include a bottom wall  2812 , along with a first sidewall  2822  and a second sidewall  2824 , both of which extend from the bottom wall  2812  in a perpendicular, or at least substantially perpendicular, manner. When assembled in the electronic device  100  (shown in  FIGS. 1 and 2 ), the thermal distribution assembly  190 , and in particular the first layer  2802 , is thermally coupled to one or more heat-generating components in the electronic device  100 . At least one of the bottom wall  2812 , the first sidewall  2822 , and the second sidewall  2824  may include a contact surface that is in direct thermal contact, or at least thermally coupled, with a heat-generating component in an electronic device. This will be shown below. 
     The thermal distribution assembly  190  may further include a second layer  2804  designed to engage and thermally couple to the first layer  2802 . The second layer  2804  may include a bottom wall  2814 , along with a first sidewall  2832  and a second sidewall  2834 , both of which extend from the bottom wall  2814  in a perpendicular, or at least substantially perpendicular, manner. When the thermal distribution assembly  190  is assembled, the bottom wall  2814 , the first sidewall  2832 , and the second sidewall  2834  of the second layer  2804  may engage the bottom wall  2812 , the first sidewall  2822 , and the second sidewall  2824  of the first layer  2802 , respectively. Also, the second layer  2804  may be formed from a second type material, which may include a material having a relatively high thermal conductivity (as compared to the first type material of the first layer  2802 ), such as copper or graphite. In this regard, the second layer  2804  is designed to redistribute, redirect, or otherwise spread thermal energy away from a heat-generating component (not shown) in an electronic device when the heat-generating component is thermally coupled with the thermal distribution assembly  190 . The second layer  2804  may receive thermal energy from the first layer  2802 , when the first layer  2802  receives thermal energy from the heat-generating component(s). At least one of the bottom wall  2816 , the first sidewall  2842 , and the second sidewall  2844  may include a contact surface that is in direct thermal contact, or at least thermally coupled, with the second layer  2804 . 
     Also, the thermal distribution assembly  190  may include a third layer  2806  designed to combine with the first layer  2802  and enhance the structural support and rigidity to the thermal distribution assembly  190 . Accordingly, the third layer  2806  may be formed from a third type material, which in some instances is the same or similar to that of the first type material for the first layer  2802 . The third layer  2806  may include a bottom wall  2816 , along with a first sidewall  2842  and a second sidewall  2844 , both of which extend from the bottom wall  2816  in a perpendicular, or at least substantially perpendicular, manner. When the thermal distribution assembly  190  is assembled, the bottom wall  2816 , the first sidewall  2842 , and the second sidewall  2844  of the third layer  2806  may engage the bottom wall  2814 , the first sidewall  2832 , and the second sidewall  2834  of the second layer  2804 , respectively. Also, when the thermal distribution assembly  190  is positioned in the electronic device  100  (shown in  FIGS. 1 and 2 ), the first sidewall  2842  and the second sidewall  2844  third layer  2806  may engage and thermally couple to the third sidewall component  116  and the fourth sidewall component  118  (shown in  FIG. 1 ), respectively. In this manner, the thermal distribution assembly  190  can be thermally coupled to portions of the band  110  (shown in  FIGS. 1 and 2 ). At least one of the bottom wall  2814 , the first sidewall  2832 , and the second sidewall  2834  may include a contact surface that is in direct thermal contact, or at least thermally coupled, with the first layer  2802 . 
     Based on the aforementioned material makeup of the thermal distribution assembly  190 , the second layer  2804  may include a heat transfer characteristic that is different from that of the first layer  2802  and the third layer  2806 . For example, the second layer  2804  may be formed from a material having a relatively high thermal conductivity, as compared to the material(s) that forms the first layer  2802  and the third layer  2806 . Also, the first layer  2802  and the third layer  2806  may be formed a material having a relatively high durability or rigidity, as compared to the material that forms the second layer  2804 . 
     In order to assemble the thermal distribution assembly  190  with layers of different material makeups, the various layers may undergo a cladding operation designed to bond the layers together. The cladding operation can include placing each layer of material on separate rollers, and then pressing the layers together when the layers pass the rollers. The pressing effect may create molecular bonds between molecules of the metals. It should be noted that the cladding operation can be used when the second layer  2804  includes copper. A different assembly operation may be used when the second layer  2804  includes graphite. This will be shown and discussed below. Also, when the thermal distribution assembly  190  is assembled, the first layer  2802  and the third layer  2806  may provide support for the second layer  2804 , and may also provide some structural support to an electronic device (not shown) that carries the thermal distribution assembly  190 . While the second layer  2804  is primarily used for heat transfer, the first layer  2802  and the third layer  2806  may also provide at least some heat transfer capabilities. Also, while the first layer  2802  and the third layer  2806  are primarily used for structural support, the second layer  2804  may also provide at least some structural support. 
       FIG. 43  illustrates a partial cross sectional view of the electronic device  100  shown in  FIG. 1 , showing the thermal distribution assembly  190  positioned in the electronic device  100 . For purposes of illustration, some components of the electronic device  100  are removed. As shown, the thermal distribution assembly  190  may be in direct thermal contact, or at least thermally coupled, with the circuit board assembly  170  such that heat generated from one or more operational components of the circuit board assembly  170  may pass from the circuit board assembly  170  to at least some layers of the thermal distribution assembly  190 . For example, as shown in the first enlarged view  2850 , thermal energy flow (represented by dotted lines with an arrow), or heat flow, generated from operational components of the circuit board assembly  170  may pass through the first layer  2802  to the second layer  2804 . As shown, a contact surface (bottom wall  2812 , labeled in  FIG. 42 ) of the first layer  2802  is in thermal contact with the circuit board assembly  170 . Further, due in part to the relatively high thermal conductivity of the second layer  2804  (as compared to the third layer  2806 ), the thermal energy has a tendency to extend through the first layer  2802  and perpendicular, or at least partially perpendicular, to the first layer  2802  and continue through the second layer  2804  rather than through the third layer  2806 . As further shown, the thermal energy flow moves parallel, or at least partially parallel, with respect to a contact surface (bottom wall  2814 , labeled in  FIG. 24 ) of the second layer  2804 . Accordingly, the relatively low thermal conductivity of the third layer  2806  may prevent thermal energy build-up, also referred to as a thermal hot spot, at a location(s) near the second protective layer  144 . This will be further discussed below. 
     Also, as shown in  FIG. 43 , the thermal distribution assembly  190  can be designed to engage the band  110 . For example, as shown in the second enlarged view  2852 , a contact surface of the first sidewall  2842  of the third layer  2806  of the thermal distribution assembly  190  may engage the third sidewall component  116  of the band  110 . Accordingly, the third layer  2806  may be in direct thermal contact, or at least thermally coupled, with the third sidewall component  116 . The second layer  2804  may distribute or redirect the thermal energy to the third layer  2806 , and in particular from the first sidewall  2832  of the second layer  2804  to the first sidewall  2842  of the third layer  2806 , so that the thermal energy is distributed to the third sidewall component  116 , where the thermal energy may then dissipate from the third sidewall component  116  to the ambient air. The thermal distribution assembly  190  may further engage the fourth sidewall component  118  of the band  110 , and in this manner, the thermal distribution assembly  190  can distribute heat to the fourth sidewall component  118  in a manner similar to that of the third sidewall component  116  (that is, by way of the sidewalls of the second layer  2804  and the third layer  2806 , shown in  FIG. 42 ). In this manner, at least one of the sidewall components as a distributed heat sink that prevents heat generated by the circuit board assembly  170  from becoming trapped at or near the second protective layer  144  so has to prevent formation of a thermal hot spot. 
     Furthermore, the thermal distribution assembly  190  may prevent or limit the second protective layer  144  from receiving thermal energy generated from operational components of the circuit board assembly  170 , as the third layer  2806  provides minimal thermal conductivity, as compared to the second layer  2804 , such that the thermal energy in the electronic device  100  is primarily carried by the second layer  2804 . In this regard, the second layer  2804  may define a thermal path, or primary thermal path, for thermal energy generated by operational components of the circuit board assembly  170 . While  FIG. 43  shows the thermal distribution assembly  190  receiving heat from a component(s) of the circuit board assembly  170 , it should be noted that the thermal distribution assembly  190  can receive heat from any heat-generating component of the electronic device  100  that is thermally coupled to the thermal distribution assembly  190 . Also, the thermal distribution assembly  190  may provide a rigid support structure that supports the second protective layer  144 . For example, the first layer  2802  and the third layer  2806  of the thermal distribution assembly  190  may extend across a major surface of the second protective layer  144 , as shown in  FIG. 43 . 
       FIG. 44  illustrates a side view of an alternative embodiment of a thermal distribution assembly  2900 , in accordance with some described embodiments. The thermal distribution assembly  2900  may include any material(s) and/or feature(s) previously described for a thermal distribution assembly. The thermal distribution assembly  2900  may include a first layer  2902 , a second layer  2904  (shown as a dotted line), and a third layer  2906 , with the second layer  2904  embedded between the first layer  2902  and the third layer  2906 . As shown, the second layer  2904  may be completely covered by the first layer  2902  and the third layer  2906 . This may prevent movement or shifting of the second layer  2904  relative to the first layer  2902  and/or the third layer  2906 . However, it should be noted that the second layer  2904  may still receive heat passing through the first layer  2902  and/or the third layer  2906 . 
       FIG. 45  illustrates an isometric view of an alternative embodiment of a thermal distribution assembly  3000 , showing the thermal distribution assembly  3000  modified to receive a component  3010 , in accordance with some described embodiments. The thermal distribution assembly  3000  may include any material(s) and/or feature(s) previously described for a thermal distribution assembly. As shown, the thermal distribution assembly  3000  may include a first layer  3002 , a second layer  3004 , and a third layer  3006 , with the second layer  3004  embedded between the first layer  3002  and the third layer  3006 . 
     However, the second layer  3004  may be modified to reduce the dimensions of the thermal distribution assembly  3000 . For example, a portion of the second layer  3004  may be locally removed in a desired location such that a portion of the thermal distribution assembly  3000  includes only the first layer  3002  and the third layer  3006 , thereby reducing (locally) the dimensions of the thermal distribution assembly  3000  where the second layer  3004  is not present. As a result of the reduced dimensions, the thermal distribution assembly  3000  may include a first channel  3012  that receives the component  3010 . The thermal distribution assembly  3000  may further include a second channel  3014  that may receive a second component (not shown). It should be noted that the locations of the first channel  3012  and the second channel  3014  correspond to a location in which the second layer  3004  is not present. However, any component(s) secured with the thermal distribution assembly  3000  at the first channel  3012  and/or the second channel  3014  may be thermally coupled to the second layer  3004  such that thermal energy generated by the component(s) may be drawn from the component(s) to the second layer  3004 . 
     The component  3010  can be secured with the thermal distribution assembly  3000  by welding, soldering, or adhering (by adhesives), as non-limiting examples. Also, the dimensions of the first channel  3012  allow the component  3010  to be seated in the thermal distribution assembly  3000  such that the component  3010  is at least co-planar, and in some cases sub-flush, with respect to the first layer  3002 . It should be noted that the dimensions of the second channel  3014  may allow a second component (not shown) to be seated in the thermal distribution assembly  3000  such that the second component is at least co-planar, and in some cases sub-flush, with respect to the third layer  3006 . Also, the component  3010  may be representative of one or more components, such as an aforementioned heat-generating component, an audio module, a bracket, or a joint, as non-limiting examples. Alternatively, the component  3010  may include a thermally conductive layer designed to receive (and thereby dissipate) thermal energy from the thermal distribution assembly  3000 . 
       FIG. 46  illustrates an isometric view of an alternative embodiment of a thermal distribution assembly  3100 , in accordance with some described embodiments. The thermal distribution assembly  3100  may include any material(s) and/or feature(s) previously described for a thermal distribution assembly. As shown, the thermal distribution assembly  3100  may include a first layer  3102 , a second layer  3104 , and a third layer  3106 , with the second layer  3104  positioned between the first layer  3102  and the third layer  3106 . 
     In some embodiments, the second layer  3104  includes a metal, such as copper. In the embodiment shown in  FIG. 46 , the second layer  3104  includes graphite. In order to bond the second layer  3104  with the first layer  3102  and the third layer  3106 , the thermal distribution assembly  3100  may undergo a welding operation. For example, as shown in  FIG. 46 , the thermal distribution assembly  3100  includes several welds, such as a first weld  3112  and a second weld  3114 , both being representative of several welds between the first layer  3102  and the second layer  3104 . Also, the thermal distribution assembly  3100  may include several welds between the third layer  3106  and the second layer  3104 , as represented by a third weld  3116 . By welding the second layer  3104  with the first layer  3102  and the third layer  3106 , the second layer  3104  may resist shear forces that would otherwise displace the second layer  3104  with respect to the first layer  3102  and the third layer  3106 , particularly when the second layer  3104  includes a granular material, such as graphite. 
       FIG. 47  illustrates a flowchart  3200  showing a method for forming a display assembly for an electronic device, in accordance with some described embodiments. The electronic device may include a portable electronic device, such as a mobile wireless communication device that includes a smartphone or a wearable electronic device. 
     In step  3202 , a display layer is positioned between a touch sensitive layer and a force sensitive layer. The touch sensitive layer is configured to detect a touch input that controls the electronic device. The force sensitive layer is configured to detect an amount of force applied to the touch sensitive layer. Each of the display layer, the touch sensitive layer, and the force sensitive layer may include an edge region that includes at least one connector. Moreover, some edge regions having a connector(s) may be perpendicular or parallel to other edge regions. For example, the touch sensitive layer may include an edge region with a connector, and the display layer may include edge region with a connector, with the aforementioned edge regions being parallel, or at least substantially parallel, with respect to one another. Further, the force sensitive layer may include an edge region that includes a connector. However, the edge region of the force sensitive layer may be perpendicular, or at least substantially perpendicular, with respect to the edge region of the display layer and/or the edge region of the touch sensitive layer. 
     In step  3204 , the display layer is bent such that the display layer least partially curves around the force sensitive layer. In some instances, the display layer is pre-bent. Also, the edge region of the display (that carries the connector) may be separated from a major portion of the display layer. The major portion of the display layer refers a surface that defines a substantial majority of the display layer, while a minor portion of the display layer refers to a portion that is separated from the major portion by the bend. The edge region having the connector may be located on, or carried by, the minor portion. 
       FIG. 48  illustrates a flowchart  3300  showing a method for forming a battery assembly for an electronic device, in accordance with some described embodiments. The battery assembly may be used to supply electrical current to several internal components (such as integrated circuits, audio modules, cameras, lighting elements, etc.) located in the electronic device. 
     In step  3302 , a housing is provided. The housing is designed to provide an enclosure to several components of the battery. The housing may include a first cover element that is sealed with a second cover element, subsequent to the components being positioned between the first cover element and the second cover element. Also, the housing may take the form of one of several different shapes. In this regard, the housing may include an L-shaped configuration, an I-shaped configuration, or a C-shaped configuration (as non-limiting examples), based upon the shape of the electrodes and the separators. Moreover, any of these aforementioned configurations may include an opening, or through hole, designed to accommodate, or provide space for, an internal component of the electronic device. 
     In step  3304 , multiple electrodes are inserted into the housing. The multiple electrodes may include pairs of anodes and cathodes. Also, each pair of electrodes is separated by a separator that physically isolates the electrode pairs from each other, while still allowing the flow of electrical charge between the electrode pairs. Also, each electrode may undergo a die cutting operation to form the electrodes with a particular size and shape. The size and shape may include a size and shape in accordance with the housing. In this regard, each electrode in an electrode pair may include an L-shape, a C-shape, or an I-shape, as non-limiting examples. Moreover, each separator and each electrode in an electrode pair may include an opening when the housing also includes the aforementioned opening, in order to provide a through hole in the battery assembly. 
     In step  3306 , a channel is formed in the housing. The channel may define a reduced dimension in the housing. In this regard, the housing may (substantially) include a first height. However, in a location corresponding to the channel, the housing may include a second height that is less than the first height. The channel is designed to lower the profile of the battery assembly such that an additional component (such as a flexible circuit) can readily pass over the battery along the channel. In this regard, the channel may allow repositioned of the additional component in the electronic device. However, the housing of the battery can still receive components, such as a circuit board, in a location corresponding to (or within) the channel. 
       FIG. 49  illustrates a flowchart  3400  showing a method for method for forming a circuit board assembly, in accordance with some described embodiments. The circuit board assembly is designed to carry several operational components. The circuit board assembly may include a stacked configuration in which a first circuit board is stacked or a second circuit board, or alternatively, the second circuit board is overlaid by the first circuit board. When positioned in an enclosure, or housing, of an electronic device, the stacked configuration may reduce the overall space (in multiple dimensions) occupied by the circuit board assembly. 
     In step  3402 , a first circuit board is provided. The first circuit board may include a first operational component. The first operational component includes a recess. Also, the first circuit board may include multiple (opposing) surfaces, with each surface designed to carry multiple operational components, some of which are in electrical communication with each other by way of metal traces and/or a via. 
     In step  3404 , a second circuit is secured with the first circuit board such that the first circuit overlays the second circuit board. The second circuit board may include a second operational component having a protrusion. 
     In step  3406 , the protrusion of the second operational component is positioned in (or at least partially positioned in) the recess. In this matter, the first operational component is “mated” with the second operational component by way of the recess and the protrusion. This may reduce a gap between the first circuit board and the second circuit board, as the first operational component and the second operational component are positioned closer to each other, as opposed to operational components that cannot mate with one another. As a result, the circuit board assembly may include a lower profile and occupy less space in an electronic device. 
       FIG. 50  illustrates a flowchart  3500  showing a method for assembling an electronic device that includes an enclosure that defines an internal volume, in accordance with some described embodiments. The enclosure may include a through hole that opens to the internal volume. In step  3502 , an audio module is disposed in the internal volume. The audio module may include an audio module housing that carries a diaphragm. The audio module may further include an audio module opening formed in the audio module housing and aligned with the through hole. Also, with the exception of the audio module opening, the audio module housing may be free of additional openings, or alternatively, may include an opening (or openings) covered by an airtight and liquid-tight seal such that the audio module housing defines an acoustic volume (including a front and back volume) that is maintained separately from air inside the internal volume defined by the enclosure. 
     In step  3504 , a bracket is positioned around a portion of audio module housing. For example, the bracket may at least partially surround a portion of the audio module housing associated with the audio module opening, thereby providing additional support to the audio module housing. Also, the bracket may adhesively secure with the enclosure at or near the through hole. The adhesive used to secure the bracket to the enclosure may include a liquid-resistant adhesive. 
     In step  3506 , a sealing element seals the bracket against the enclosure at the through hole. The sealing element may be positioned between the bracket and the enclosure, and may also engage the bracket and the enclosure. In this regard, the audio module housing is sealed from air in the internal volume, and may seal the diaphragm from the air in the internal volume. Further, the audio module housing is positioned and designed to receive or emit air from an external environment outside the electronic device, such as air entering the through hole. Also, using the diaphragm, the audio module can emit acoustical energy that exits the audio module opening and the through hole. 
       FIG. 51  illustrates a flowchart  3600  showing a method for making a thermal distribution assembly for removing thermal energy from a heat-generating component in an electronic device having an enclosure sidewall, in accordance with some described embodiments. The thermal distribution assembly is designed to provide structural support to the electronic device, in particular when a glass bottom wall coupled to the enclosure sidewall defines an enclosure of the electronic device. 
     In step  3602 , a first layer is secured with a second layer. The first layer may include a first bottom wall and a first sidewall extending from the first bottom wall. The second layer may include a second bottom wall engaging the first bottom wall. Also, the second layer may further include a second sidewall extending from the second bottom wall and engaging the first sidewall. In some instances, the first layer includes a first type material, such as steel (including stainless steel) in order to provide structural support. Also, in some instances, the second layer includes a second type material, such as copper or graphite, designed to enhance thermal conductivity of the thermal distribution assembly. Also, the first and second layer may each include an additional sidewall. 
     In step  3604 , a third layer is secured with the second layer. The third layer may include a third bottom wall engaging the second bottom wall. The third layer may further include a third sidewall extending from the third bottom wall and engaging the second sidewall and the enclosure sidewall. The third layer may include a third type material, such as steel (including stainless steel). In this regard, the third layer may combine with the first layer to provide additional structural support. Also, the first layer and the third layer may fully cover the second layer such that the second layer is hidden from view by the first layer and the third layer. 
     When the thermal distribution assembly is assembled and positioned in the electronic device, the first layer is designed distribute thermal energy from the heat-generating component to the second layer. Also, the second layer is designed distribute the thermal energy throughout various locations of the second layer, such that the thermal energy reaches the third layer and can be distributed to the enclosure sidewall. 
       FIG. 52  illustrates an exploded view of an embodiment of a battery assembly  4000 , in accordance with some described embodiments. The battery assembly  4000  is designed for use as an internal power supply for electronic devices described herein. The battery assembly  4000  may include a rechargeable battery assembly that is charged and recharged by an external power supply using, for example, the port  132  (shown in  FIG. 1 ) to receive power from cable and connector, or a wireless charging system. 
     As shown, the battery assembly  4000  may include first battery component  4002  and a second battery component  4004  coupled to the first battery component  4002  by a coupling member  4006 . The coupling member  4006  may include an adhesive material. 
     The first battery component  4002  may include first housing component  4012  and a second housing component  4022 , with the first housing component  4012  sealed with the second housing component  4022  forming a housing, or enclosure, that shields the internal components of the battery assembly  4000 . The housing formed by the first housing component  4012  and the second housing component  4022  may define a cavity to receive and enclose internal components. For example, the battery assembly  4000  may further include a first electrode  4016  and a second electrode  4018  separate from the first electrode  4016  (such that each of the first electrode  4016  and the second electrode  4018  include a single piece electrode), with a separator  4020  that provides some physical isolation between the first electrode  4016  and the second electrode  4018 , while still allowing the flow of electrical charge between the first electrode  4016  and the second electrode  4018 . As commonly known in the art for a battery, one of the first electrode  4016  and the second electrode  4018  includes an anode, while the remaining electrode (of the first electrode  4016  and the second electrode  4018 ) includes a cathode. Also, as commonly known, electrodes can be used to convert chemical energy into electricity for use by an electronic device (such as the electronic device  100 , shown in  FIG. 1 ). Similarly, the second battery component  4004  may include electrodes  4026 ,  4028 , and a separator  4020 . 
       FIG. 53  illustrates a plan view of the battery assembly  4000  shown in  FIG. 52 , showing the first battery component  4002  coupled with the second battery component  4004  by the coupling member  4006 . While traditional battery electrodes include a generally rectilinear shape, the electrodes in the battery assembly  4000 , and battery assemblies described herein, may include different shapes. For example, the battery assembly  4000 , when assembled, may resemble an “L-shaped configuration” in which the combination of the first battery component  4002  and the second battery component  4004  includes at least one surface of the battery assembly  4000  include six different sides. Although not shown, the battery assembly  4000  may further include a circuit board that includes one or more circuits designed to monitor electrical current flowing into and out of the battery assembly  4000 . Also, the circuit board, as well as components of the circuit board, may be in electrical communication with the circuit board assembly (discussed below). 
     As shown in  FIG. 53 , the system includes a battery assembly  4000  having a rectilinear shape that differs in at least two-dimensions (e.g., length and width). For example, as shown in the illustrated embodiment, the battery assembly  4000  has an L-shape having a first portion  4002  extending away from a second portion  4004 . The shapes of the first and second portions  4002 ,  4004  allow the battery assembly  4000  to maximize volume within the device while still allowing space for adjacent components. For example, a circuit board (or any other suitable component) can be positioned adjacent the battery assembly  4000 , and the first and second portions  4002 ,  4004  of the battery assembly can extend or wrap around the component(s) to fill the space. In other embodiments, the battery assembly  4000  can have other shapes and configurations, for example extending in different directions or filling other spaces two-dimensionally. In still further embodiments, the portions of the battery assembly  100  can vary in shape in a third dimension (e.g., height). 
     In some embodiments battery assembly  4000  is a single cell battery having the first and second portions  4002 ,  4004 . In other embodiments, however, the first and second portions  4002 ,  4004  can be discrete or separate battery cells that are positioned adjacent to each other and electrically and functionally coupled to each other. For example, the first and second portions  4002 ,  4004  can individually be rectangular in shape, but the combination of the first and second portions  4002 ,  4004  adjacent to each other forms the two-dimensional battery system  4000  as shown in  FIGS. 53-56 . In further embodiments the system  4000  can include any number of discrete battery cells or portions that are positioned adjacent each other. In still further embodiments, discrete battery cells or portions can be spaced apart from each other. 
       FIGS. 54-56  illustrate various embodiments of a battery assembly that may be incorporated into an electronic device described herein.  FIG. 54  illustrates a plan view of an alternate embodiment of a battery assembly  4100 , showing a first battery component  4102  coupled with a second battery component  4104  along a central location of the first battery component  4104 , in accordance with some described embodiments. As shown, a coupling member  4106  can be used to secure the first battery component  4102  with the second battery component  4104 .  FIG. 54  exemplifies that the second battery component  4104  may be located in different positions relative to the first battery component  4102 , making the battery assembly  4100  “flexible.” In other words, the battery assembly  4100  may be reconfigured to form different shapes in order to accommodate other internal component of an electronic device, and avoid engineering design changes to the layout of the internal components of the electronic device. 
       FIG. 55  illustrates a plan view of an alternate embodiment of a battery assembly  4200 , showing the battery assembly  4200  having a housing formed from a unitary body, in accordance with some described embodiments. As shown, the battery assembly  4200  may include a first battery component  4202  and a second battery component  4204 , both of which are housed in the unitary housing of the battery assembly  4200 . This may reduce the total number of parts, thereby reducing manufacturing time of the battery assembly  4200 . 
       FIG. 56  illustrates a plan view of an alternate embodiment of a battery assembly  4300 , showing the battery assembly  4300  having a housing formed from a unitary body and battery component  4302  positioned in the unitary housing, in accordance with some described embodiments. The battery component  4302  may take on a similar shape as that of the battery assembly  4300 . Accordingly, the battery component  4302  may resemble an “L-shape”. 
     Due to the component density inside the device, securely attaching a large battery assembly can be challenging. For example, other components can take up space that would otherwise be used for attaching the battery system within the device. For example, an inductive charging coil may reduce the surface area that is available to attach each of the first and second battery portions to a support or carrier. Accordingly, embodiments for attaching the battery system  4400  are shown in  FIG. 57 . 
     As shown in  FIG. 57 , and for embodiments with adjacent but discrete battery portions, the battery system  4400  includes a first attachment area  4402  for attaching the first battery portion to a carrier  4401 , and a second attachment area  4404  for attaching the second battery portion to the carrier  4401 . The battery system  4400  also includes a third attachment area  4406  for attaching the first battery portion to the to the second battery portion. Accordingly, and as described in detail below, a first surface of each battery portion can independently be attached to the carrier  4401 . A second surface of each battery portion can be attached together with an additional adhesive. Therefore, one side of each battery portion is independently attached to the carrier  4401 , and an opposite side of the first battery portion is coupled directly to the first side of the second battery portion. 
     The first and second attachment areas  4402 ,  4404  can each include one or more pieces of adhesive to attach the first side of the corresponding battery portion to the carrier  4401 . The adhesive can be any suitable adhesive for securing the battery system  4400  in the device. In some embodiments, for example, the adhesive can include multiple strips or segments of stretch release adhesive (e.g., adhesive that changes dimension in a first direction and therefore releases when the adhesive is pulled in s second direction (e.g., perpendicular direction) different the first direction. The attachment areas ( 4402  and  4404 ) may be surrounded by a perimeter frame or shim  4408 , thus surrounding the attached battery cells. The perimeter frame may extend upward to a distance at or greater than the height of the battery cells so as to prevent other components from contacting the battery cells. In some embodiments, the first battery portion and the second battery portion are a single unit not requiring attachment between the two battery portions (e.g., no attachment at  4406 ). In such embodiments, the battery system  4400  may operate as a battery system with separate battery portions (e.g., separated battery cells). Furthermore, the battery system may be configured as a single battery cell that forms an L-shape, rather than attaching two battery cells together to attain the L-shape (e.g., a single battery cell is shaped and contained within the case of the battery). 
     Additional features regarding battery assemblies are shown in  FIGS. 58A-58B . In  FIG. 58A , a torsion patch is shown. A torsion patch  4500  may reinforce the battery cell edge and prevent it from wrinkling. The torsion patch may also act as a second barrier to reduce ingress in the event of a failed battery cell. In examples where pull tabs are used for releasing adhesives, the adhesives may be placed outside of the torsion patch, such that the decoupling of the adhesive allows the entire battery assembly to be removed. Furthermore, at  FIG. 58B , a pull tab  4502  of a battery cell  4504  may include a decoupling layer  4506 , which stretches at a different rate to further advance removal of adhesives on a battery cell. 
       FIG. 59A  is a view of a pull tab  4600  attached to an adhesive via a junction  4602 .  FIG. 59B  is a side view of a battery cell  4608  adhered by an adhesive layer  4606  running under the battery  4608  and extended to the pull tab  4604  that is accessible over the top of the battery  4608 . The pull tabs  4600  and  4604  facilitate removal of the adhesive layer  4606  to remove the battery cell  4608  from the surface in which it has contact. 
       FIGS. 60A and 60B  show example tensile shims. The tensile shim  4704  may provide support to the battery pack  4700  in the event of tensile load across the pack. This prevents pack damage and can help distribute shock load across regions of the pack. The tensile shim  4704  may run along the bottom surface of the battery pack  4700  and be attached to the battery pack  4700  by way of adhesive  4702 . 
     Examples of battery assemblies having a brace or sled type mounting system are shown in  FIGS. 61A-61D . In  FIG. 61A , the electronic device  4800  includes a first battery portion  4802  and a second battery portion  4804 . A brace or sled  4806  is positioned under the battery portions and affixed to the electronic device by screwed attachment  4808 . Electronic device  4820  in  FIG. 61B  is similar to electronic device  4800 , except that side rails  4822  are used in place of the sled structure  4806 . The side rails do not run under the battery portions, but rather are attached to side walls of the battery portions. An example sled structure  4900  is shown in  FIG. 61C , which includes adhesive regions  4902  for receiving battery portions, as well as side rails and other options to attach or affix the sled  4900  to an electronic device.  FIG. 61D  shows an example battery assembly  4920  with a first battery portion  4922  attached to a second battery portion  4924  by way of a side rail  4926  affixed to side walls of the battery portions. The side rail  4926  may run along the entire perimeter of the battery assembly  4920  or at critical portions along the perimeter of the battery assembly  4920 . The side rail  4926  may include an attachment portion for securing the battery assembly  4920  to an electronic device. 
     The various aspects, embodiments, implementations or features of the described embodiments can be used separately or in any combination. Various aspects of the described embodiments can be implemented by software, hardware or a combination of hardware and software. The described embodiments can also be embodied as computer readable code on a computer readable medium for controlling manufacturing operations or as computer readable code on a computer readable medium for controlling a manufacturing line. The computer readable medium is any data storage device that can store data which can thereafter be read by a computer system. Examples of the computer readable medium include read-only memory, random-access memory, CD-ROMs, HDDs, DVDs, magnetic tape, and optical data storage devices. The computer readable medium can also be distributed over network-coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. 
     The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the described embodiments. However, it will be apparent to one skilled in the art that the specific details are not required in order to practice the described embodiments. Thus, the foregoing descriptions of the specific embodiments described herein are presented for purposes of illustration and description. They are not targeted to be exhaustive or to limit the embodiments to the precise forms disclosed. It will be apparent to one of ordinary skill in the art that many modifications and variations are possible in view of the above teachings.

Metadata:
Filing Date: 20170921
Publication Date: 20200630
Grant Date: 20200630
Priority Date: 20160922
Inventors: PAKULA, DAVID A.
JARVIS, DANIEL W.
STEPHENS, GREGORY N.
SPRAGGS, IAN A.
BERTIN, JAMES A.
BENNETT, Eric M.
HELMORE, SIMON C.
WAH, MELISSA A.
HILL, MATTHEW D.
HOUSOUR, Jon F.
FOURNIER, DOUGLAS G.
TOMASETTA, CHRISTOPHER S.
Assignee: APPLE INC
CPC Classifications: [{"code": "H01M50/247", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01M50/247", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01M50/183", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1643", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0412", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01M50/183", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K7/20481", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F1/1637", "inventive": true, "first": true, "tree": "[]"}, {"code": "Y02E60/10", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1637", "inventive": true, "first": true, "tree": "[]"}, {"code": "H05K7/20963", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K1/144", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0412", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/0216", "inventive": true, "first": false, "tree": "[]"}, {"code": "B32B2457/20", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/10242", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K9/0033", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K2201/10257", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/144", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F2203/04112", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F2203/04112", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01M2220/30", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/0216", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K2201/042", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/10257", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/148", "inventive": true, "first": false, "tree": "[]"}, {"code": "H02J7/0042", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1643", "inventive": false, "first": false, "tree": "[]"}, {"code": "B32B2307/302", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K9/0033", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K2201/10242", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/148", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K2201/042", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01M2/1016", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0412", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1637", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K1/0216", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01M2/08", "inventive": false, "first": false, "tree": "[]"}, {"code": "B32B2457/20", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K7/20963", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K2201/10257", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01M2/1022", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K9/0033", "inventive": true, "first": false, "tree": "[]"}, {"code": "H02J7/0042", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/042", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F3/044", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K7/20481", "inventive": true, "first": true, "tree": "[]"}, {"code": "H05K1/144", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F2203/04112", "inventive": false, "first": false, "tree": "[]"}, {"code": "B32B2307/302", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1643", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/10242", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F3/0414", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01M2220/30", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/148", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 61618106