PATENT DOCUMENT

Publication Number: US-10638608-B2
Application Number: US-201816147469-A
Country: US
Kind Code: B2

Title: Interconnect frames for SIP modules

Abstract:
Frames and other structures for system-in-package modules that may allow components on boards in the modules to communicate with each other.

Claims:
What is claimed is: 
     
       1. A system-in-package module comprising:
 a top printed circuit board; 
 a first component and a first plurality of contact pads on a surface of the top printed circuit board; 
 a bottom printed circuit board; 
 a second component and a second plurality of contact pads on a surface of the bottom printed circuit board, where the surface of the top printed circuit board and the surface of the bottom printed circuit board are separated and face each other such that the first component and the second component are between the top printed circuit board and the bottom printed circuit board; 
 a frame extending as a single piece from the surface of the top printed circuit board to the surface of the bottom printed circuit board, wherein the frame is formed of metal; and 
 a connector coupled to the first plurality of contact pads and the second plurality of contact pads to convey signals between the top printed circuit board and the bottom printed circuit board. 
 
     
     
       2. The system-in-package module of  claim 1  wherein the connector is a board-to-board connector comprising:
 a plug comprising a first plurality of contacts coupled to the first plurality of contact pads on the top printed circuit board; and 
 a receptacle comprising a second plurality of contacts coupled to the second plurality of contact pads on the bottom printed circuit board. 
 
     
     
       3. The system-in-package module of  claim 1  wherein the frame is a loop around the first component and the second component. 
     
     
       4. The system-in-package module of  claim 1  wherein the connector comprises a plurality of wires attached to the second plurality of contact pads and housed in an insert molding, the frame formed on an outside surface of the insert molding. 
     
     
       5. The system-in-package module of  claim 1  wherein a first contact pad in the first plurality of contact pads is electrically connected to the first component through a first trace on the top printed circuit board, wherein a second contact pad in the second plurality of contact pads is electrically connected to the second component through a second trace on the bottom printed circuit board, and wherein the connector includes interconnect to connect the first contact pad to the second contact pad. 
     
     
       6. The system-in-package module of  claim 1  wherein the frame is connected to the top printed circuit board and the bottom printed circuit board and forms a ground path from the top printed circuit board to the bottom printed circuit board. 
     
     
       7. The system-in-package module of  claim 5  wherein the frame is formed of one of copper or a copper-alloy. 
     
     
       8. The system-in-package module of  claim 5  wherein the frame is formed by stamping. 
     
     
       9. The system-in-package module of  claim 1  further comprising:
 a high-speed signal path attached to the surface of the top printed circuit board and the surface of the bottom printed circuit board. 
 
     
     
       10. The system-in-package module of  claim 9  wherein the high-speed signal path is a coaxial structure formed in an LDS frame. 
     
     
       11. The system-in-package module of  claim 10  wherein the LDS frame is located along an edge of the bottom printed circuit board. 
     
     
       12. The system-in-package module of  claim 11  wherein the coaxial structure comprises a central conductor, a first LDS molding around the central conductor, a shield around the first LDS molding, and the LDS frame around the shield. 
     
     
       13. The system-in-package module of  claim 12  wherein the central conductor is a pin. 
     
     
       14. The system-in-package module of  claim 12  wherein the central conductor is formed by plating. 
     
     
       15. The system-in-package module of  claim 9  wherein the high-speed signal path comprises a signal pin and two ground pins in the frame and is located along an edge of the bottom printed circuit board, the two ground pins located on each side of the signal pin. 
     
     
       16. The system-in-package module of  claim 15  wherein the high-speed signal path further comprises ground shielding on an inside edge of the frame and an outside edge of the frame. 
     
     
       17. The system-in-package module of  claim 15  wherein the signal pin further comprises a domed-shaped conductive structure on a top surface. 
     
     
       18. The system-in-package module of  claim 1  wherein the connector is a board-to-board connector.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation-in-part of U.S. patent application Ser. No. 15/699,946, filed Sep. 8, 2017, which is incorporated by reference. 
    
    
     BACKGROUND 
     The number of types of electronic devices that are commercially available has increased tremendously the past few years and the rate of introduction of new devices shows no signs of abating. Devices, such as tablet, laptop, netbook, desktop, and all-in-one computers, cell, smart, and media phones, storage devices, portable media players, navigation systems, monitors, and others, have become ubiquitous. 
     The functionality of these devices has likewise greatly increased. This in turn has led to increased complexity inside of these electronic devices. At the same time, the dimensions of these devices have become smaller. For example, smaller and thinner devices are becoming more popular. 
     This increasing functionality and decreasing size have necessitated the use of space-efficient circuit manufacturing techniques. As one example, system-in-package (SIP) modules and other similar structures may be used to increase an electronic device&#39;s functionality while reducing space consumed in the device. Reducing the space consumed in a device allows additional functionality to be included in the device, allows the device to be smaller, or a combination thereof. 
     These system-in-package modules may include electronic devices or components placed on a board and then sealed and encapsulated in a plastic or other material. Other modules may include electronic devices or components placed on a first board and electronic devices or components placed on a second board. But it may be difficult for components on the two boards to communicate in this configuration. 
     Thus, what is needed are structures for modules that may allow components on separate boards in the modules to communicate with each other. 
     SUMMARY 
     Accordingly, embodiments of the present invention may provide structures for system-in-package modules that may allow components on boards in the modules to communicate with each other. 
     An illustrative embodiment of the present invention may provide a system-in-package module having two printed circuit boards facing each other. Specifically, one or more circuits or components may be located on a surface of a first printed circuit board. One or more circuits or components may be located on a surface of a second printed circuit board. The surfaces of these printed circuit boards may be encapsulated, either together or separately. The encapsulated portions may be adjacent such that the surfaces of the boards face each other with the components and encapsulation between them. One or more intermediate layers that may be used for shielding, grounding, heat spreading, or other reasons, may be located between the boards. The one or more intermediate layers may be formed of conductive metal or other material. 
     In conventional system-in-package modules, communication between a top printed circuit board and a bottom printed circuit board may be difficult. Accordingly, these and other embodiments of the present invention may provide a frame or interposer that may be located between the top printed circuit board and the bottom circuit board. This frame may be located around edges of one or both of the printed circuit boards. The frame may include other portions that are not located around edges of either printed circuit board. For example, the frame may include portions that traverse from one edge of a frame to another edge of a frame along a middle of a printed circuit board. These frames may provide mechanical support, shielding, signal pathways including radio-frequency and other high-speed signal pathways, printed circuit board alignment, and other features to the SIP modules. 
     These frames may provide several features. These features may include providing mechanical stability between two facing printed circuit boards of a SIP module. A frame may also provide a boundary for a potting or molding material during assembly. These features may include providing paths for power and signals. The frames may further include shielding for SIP modules, for example along an outside edge of the SIP module. 
     In these and other embodiments of the present invention, one or more of these features may be performed by one or more different structures. For example, a frame that does not include paths for power and signals may be used. This frame may be relatively thin as compared to a frame that does include these paths. This frame may be used for mechanical stability between two facing printed circuit boards, and a may provide a boundary for potting or molding material. This frame may also provide shielding along an outside of a SIP module. To compensate for the loss of power and signal paths in the frame, connectors may be used between two facing boards. A frame and connector may be formed as a unit, or the frame and connector may be formed separately. The combined space required by the thin frame and connectors may be smaller than a frame that includes both. These connectors may also allow a SIP module to be reworked during assembly. 
     In these and other embodiments of the present invention, these frames may be formed of metal, such as copper, copper nickel, copper titanium, aluminum, steel, or other copper alloy or other material. These frames may be stamped, middle injection molded, 3-D printed, or formed in other ways. These frames may be formed of plastic and plated or otherwise coated with a conductive material. A frame may extend as a single piece from a top board to a bottom board. In these and other embodiments of the present invention, a frame may be formed of two sections, where a first section is attached to a top board and a second section is attached to a bottom board. These two sections may have interlocking features and may be attached to each other during assembly of the SIP module. 
     It should be noted that while the interconnect structures described above are well-suited to forming system-in-package modules, in these and other embodiments of the present invention, other types of electronic devices may be formed using these techniques. Embodiments of the present invention may be used at different levels in the manufacturing of a SIP module. For example, a SIP module may be formed of one or more other sub-modules, and these embodiments of the present invention may be used in one or more of these sub-modules. The SIP module itself may be formed by employing one or more embodiments of the present invention. 
     In various embodiments of the present invention, contacts, interconnect paths, and other conductive portions of SIP modules may be formed by stamping, metal-injection molding, machining, micro-machining, ink jet, 3-D printing, aerosol jet printing, or other type of printing or manufacturing process. The conductive portions may be formed of stainless steel, steel, copper, copper titanium, aluminum, phosphor bronze, or other material or combination of materials. They may be plated or coated with nickel, gold, or other material. The nonconductive portions may be formed using injection or other molding, ink-jet, 3-D, aerosol-jet, or other type of printing, machining, or other manufacturing process. The nonconductive portions may be formed of silicon or silicone, rubber, hard rubber, plastic, nylon, liquid-crystal polymers (LCPs), plastic, epoxy, resin, or other nonconductive material or combination of materials. The printed circuit board or other appropriate substrates used may be formed of FR-4, BT or other material. Printed circuit boards may be replaced by other substrates, such as flexible circuit boards, in many embodiments of the present invention, while flexible circuit boards may be replaced by printed circuit boards in these and other embodiments of the present invention. 
     Embodiments of the present invention may provide SIP modules that may be located in various types of devices, such as portable computing devices, tablet computers, desktop computers, laptops, all-in-one computers, wearable computing devices, cell phones, smart phones, media phones, storage devices, portable media players, navigation systems, monitors, power supplies, adapters, remote control devices, chargers, and other devices. 
     Various embodiments of the present invention may incorporate one or more of these and the other features described herein. A better understanding of the nature and advantages of the present invention may be gained by reference to the following detailed description and the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates an intermediate layer for a system-in-package module according to an embodiment of the present invention; 
         FIG. 2  illustrates a system-in-package module according to an embodiment of the present invention; 
         FIG. 3  illustrates a method of encapsulating a system-in-package module according to an embodiment of the present invention; 
         FIG. 4A  illustrates a portion of a frame according to an embodiment of the present invention and  FIG. 4B  illustrates a system-in-package module according to an embodiment of the present invention; 
         FIG. 5  illustrates a portion of a system-in-package module according to an embodiment of the present invention; 
         FIG. 6  illustrates a system-in-package module according to an embodiment of the present invention; 
         FIG. 7  illustrates a portion of a system-in-package module according to an embodiment of the present invention; 
         FIG. 8  illustrates a portion of a frame according to an embodiment of the present invention; 
         FIG. 9  illustrates a portion of a system-in-package module according to an embodiment of the present invention; 
         FIG. 10  illustrates another portion of a frame according to an embodiment of the present invention; 
         FIG. 11  illustrates another portion of a frame according to an embodiment of the present invention; 
         FIG. 12  illustrates a portion of a system-in-package module according to an embodiment of the present invention; 
         FIG. 13  illustrates a portion of a frame according to an embodiment of the present invention; 
         FIG. 14  illustrates a portion of a frame according to an embodiment of the present invention; 
         FIG. 15  illustrates a method of manufacturing a portion of a frame according to an embodiment of the present invention; 
         FIG. 16  illustrates a top view of a shielded signal path in a portion of a frame according to an embodiment of the present invention; 
         FIG. 17  illustrates a side cross-section view of a portion of the frame of  FIG. 16 ; 
         FIG. 18  illustrates a side view of a portion of the frame of  FIG. 16 ; 
         FIGS. 19A-19I and 20A-20B  illustrate methods of manufacturing a high-speed path according to an embodiment of the present invention; 
         FIGS. 21A-21D  illustrate a method of forming interconnect according to an embodiment of the present invention; 
         FIG. 22  illustrates a portion of a metallic frame according to an embodiment of the present invention; 
         FIGS. 23A-23C  illustrate a method of manufacturing a frame and connector according to an embodiment of the present invention; 
         FIGS. 24A-24C  illustrate a method of manufacturing a frame and connector according to an embodiment of the present invention; 
         FIG. 25  illustrates a connector for a frame according to an embodiment of the present invention; 
         FIG. 26  illustrates a structure for contacting wires in a connector according to an embodiment of the present invention; 
         FIG. 27A-27C  illustrate a method of manufacturing a frame and connector according to an embodiment of the present invention; 
         FIGS. 28A-28C  illustrate a connector system according to an embodiment of the present invention; 
         FIG. 29  illustrates a portion of a SIP module according to an embodiment of the present invention; 
         FIG. 30  illustrates a board-to-board connector according to an embodiment of the present invention; 
         FIG. 31  illustrates a cutaway side view of the board-to-board connector of  FIG. 30 ; 
         FIG. 32  illustrates another board-to-board connector according to an embodiment of the present invention; 
         FIG. 33  illustrates a plug for a board-to-board connector according to an embodiment of the present invention; 
         FIG. 34  illustrates a receptacle for a board-to-board connector according to an embodiment of the present invention; 
         FIGS. 35A-35D  illustrate the plug of  FIG. 33 ; 
         FIG. 36  illustrates another plug for a board-to-board connector according to an embodiment of the present invention; 
         FIGS. 37A-37D  illustrate the plug of  FIG. 36 ; and 
         FIGS. 38A-38C  illustrate another board-to-board connector according to an embodiment of the present invention 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     An illustrative embodiment of the present invention may provide a system-in-package module having two printed circuit boards facing each other. Specifically, one or more circuits or components may be located on a surface of a first printed circuit board. One or more circuits or components may be located on a surface of a second printed circuit board. The surfaces of the ease printed circuit boards may be encapsulated, either together or separately. The encapsulated portions may be adjacent such that the surfaces of the boards face each other with the components and encapsulation between them. One or more intermediate layers that may be used for shielding, grounding, heat spreading, or other reasons may be located between the boards. An example is shown in the following figures. 
       FIG. 1  illustrates an intermediate layer for a system-in-package module according to an embodiment of the present invention. Intermediate layer  100  may be formed of metal or other conductive material. Intermediate layer  110  may be formed by die cutting, stamping, printing, or other technique. Intermediate layer may be used for shielding, grounding, heat spreading, or other reasons in a system-in-package module. Intermediate layer  110  may include several openings and passages through which encapsulation material may flow during assembly. 
       FIG. 2  illustrates a system-in-package module according to an embodiment of the present invention. This example may include top printed circuit board  210  and bottom printed circuit board  220 . Intermediate layer  110  may be located between top printed circuit board  210  and bottom printed circuit board  220 . Layers of encapsulation material  212  and  222  may be formed between intermediate layer  110  and top printed circuit board  210  and intermediate layer  110  and bottom printed circuit board  220 . Intermediate layer  110  may have openings (shown in  FIG. 1 ) to allow encapsulation material  212  and  222  to flow though intermediate layer  110  during assembly. After encapsulation, the system-in-package module may be trimmed along the edges  240  of the encapsulation material. This may be done using a laser, computer numerical control (CNC) machine, router, or other appropriate tool. 
     Edges  240  of the system-in-package module may be printed or plated with silver, gold, or other material. The plating may then be insulated for use in an electronic device. Masking or other techniques may be used in applying the plating and insulating materials. In these and other embodiments of the present invention, these layers may be used as shielding. They may also be used as antennas, particularly where the system-in-package module includes wireless circuitry. Passive components, such as resistors, capacitors, inductors, and other components may be formed using these and other layers along edges  240  and elsewhere in and on the system-in-package module. 
     In various embodiments of the present invention, various types of encapsulation materials and methods may be used. An example is shown in the following figure. 
       FIG. 3  illustrates a method of encapsulating a system-in-package module according to an embodiment of the present invention. In this example, a system-in-package module may include top printed circuit board  210  and bottom printed circuit board  220 , which may be located in tool  310 . Tool  310  may have an exit location  320 . Encapsulation material  212  may be placed between top printed circuit board  210  and bottom printed circuit board  220 . A force  340  may be applied to a spring or compression layer  330 . Spring or compression layer may push top printed circuit board  210  towards bottom printed circuit board  220 . Excess encapsulation material  212  may exit tool  310  at exit location  320 . 
     In the above example, edges  240  of the system-in-package module may need to be trimmed, plated, and insulated. Also, communication between top printed circuit board  210  and bottom printed circuit board  220  may be difficult. Accordingly, these and other embodiments of the present invention may provide frames, interposers, or other structures that may be located between top printed circuit board  210  and bottom printed circuit board  220 . A frame may be located around edges of one or both of the printed circuit boards. That is, where a top printed circuit board  210  and a bottom printed circuit board  220  may have an overlapping area, the frame may follow and be along some or all of an outline of the overlapping area. The frame may include other portions that are not located around edges of either printed circuit board. For example, the frame may include portions that traverse from one edge of a frame to another edge of a frame along a middle of a printed circuit board, that is, through the overlapping area. These frames may provide mechanical support, shielding, signal pathways, printed circuit board alignment, and other features for the SIP modules. An example of one such frame is shown in the following figure. 
       FIG. 4A  illustrates a portion of a frame according to an embodiment of the present invention. Frame  410  may be made from a printed circuit board. Frame  410  may be formed using a CNC machine, router or other tool. A number of through holes may be drilled through frame  410  and filled to provide vias  420 . Vias  420  may align with and electrically and physically connect to pads, contacts, or vias on top printed circuit board  210  and bottom printed circuit board  220  to facilitate communication between circuitry on those boards. 
     As with the other frames shown herein or other frames consistent with embodiments of the present invention, frame  410  may be sized to fit along edges of either or both top printed circuit board  210  or bottom printed circuit board  220  (shown in  FIG. 2 .) That is, frame  410  (and the other frames shown here) may follow an edge of a first board, where the edge of a first board is coincident or overlapping with an edge of the second board. In this way, the frame remains between the boards and at (or near) an outside edge of the SIP module such that space inside the SIP module is maximized and is not wasted. Also or instead, these frames may have intermediate portions that traverse between edges of either or both top printed circuit board  210  or bottom printed circuit board  220 . These intermediate portions may be used to isolate various circuits in the SIP modules. 
     As with the other frames shown herein or other frames consistent with embodiments of the present invention, as shown in  FIG. 4B , frame  410  may be located around components on facing surfaces of top printed circuit board  210  and bottom printed circuit board  220  (also shown in  FIG. 2 .) In this example, a first component  470  on a surface of top printed circuit board  210  may be in region  430  of frame  410 . Similarly, a second component  480  on a surface of bottom printed circuit board  220  may be in region  430  of frame  410 . The first component may connect through a first trace in top printed circuit board  210  to a first contact on the surface of top printed circuit board  210 . The first contact may connect to a via  420  (shown in  FIG. 4A ) in frame  410  (or other interconnect in other frames.) The via may connect the first contact to a second contact on a surface of the bottom printed circuit board  220 . A second trace in the bottom printed circuit board  220  may connect the second contact to the second component. The region  430  may be encapsulated in each of the frames shown herein and that are consistent with embodiments of the present invention. 
     As with the other frames shown herein or other frames consistent with embodiments of the present invention, only a portion of frame  410  is shown. Frame  410 , and the other frames herein, may formed a closed loop, or more than one closed loop, or they may have one or more open ends. 
     As with the other frames shown herein or other frames consistent with embodiments of the present invention, frame  410  may be formed of a printed circuit board. This printed circuit board may, as with the other printed circuit boards such as top printed circuit board  210  and bottom printed circuit board  220 , be formed of various layers with various traces on the layers and vias interconnecting traces on the various layers. These vias and layers may provide for a lateral translation of the signal path through the frame  410 . 
     In these and other embodiments of the present invention, frames may be formed of other materials. For example, frames may be formed using laser direct structuring (an LDS frame), injection molded plastic, or other material. An example is shown in the following figure. 
       FIG. 5  illustrates a portion of a system-in-package module according to an embodiment of the present invention. In this example, intermediate layer  110  may be framed by frame  510 . Frame  510  may be an LDS frame, it may be made of injection molded plastic, or it may be made of another material. 
       FIG. 6  illustrates a system-in-package module according to an embodiment of the present invention. In this example, either of frames  410  or  510  (shown in  FIG. 4  and  FIG. 5 ), or any of the other frames described here or that are consistent with embodiments of the present invention, may be located between top printed circuit board  210  and bottom printed circuit board  220 . During manufacturing, top printed circuit board  210  and bottom printed circuit board  220  may be soldered to frame  410  or  510 . The space between top printed circuit board  210  and bottom printed circuit board  220  may be filled with an encapsulation material. If needed, edges  240  of the system-in-package module may be trimmed, for example with a CNC machine, router, laser, or other tool. 
     In these and other embodiments of the present invention, other features may be included on a frame. An example is shown in the following figure. 
       FIG. 7  illustrates a portion of a system-in-package module according to an embodiment of the present invention. In this example, intermediate layer  110  may be framed by frame  710 . Frame  710  may be an LDS frame, it may be formed of plastic, printed circuit board, or other material. Frame  710  may include a number of dimples  720  to increase the friction between frame  710  and top printed circuit board  210  and bottom printed circuit board  220  (shown in  FIG. 6 .) Frame  710  may further include alignment features  730 . Alignment features  730  may be placed along an outside edge of frame  710  to improve the alignment of top printed circuit board  210  and bottom printed circuit board  220  to frame  710 . Frame  710  may further include hard stops  740  that may be used to accurately set a thickness of the encapsulation material and therefor the thickness of the resulting system-in-package module. For example, frame  710  may be pliable and compressible. Using a hard stop  740  may prevent this compression and maintain a thickness of frame  710  during assembly. 
     In these and other embodiments of the present invention, still other features may be included on a frame. Examples are shown in the following figure. 
       FIG. 8  illustrates a portion of a frame according to an embodiment of the present invention. In this example, frame  810  may be an LDS or other type of frame. Interconnect traces  830  may be formed along sides of frame  810  to provide signal, power, and ground routes between top printed circuit board  210  and bottom printed circuit board  220  (shown in  FIG. 2 .) Mechanical slots  860  may be included along top and bottom inside edges of frame  810 . Mechanical slots  860  may help with adhesion between frame  810  and top printed circuit board  210  and bottom printed circuit board  220 . Specifically, encapsulation material  212  (shown in  FIG. 2 ) may fill mechanical slots  860 . The mechanical slots  860  and encapsulation material in the mechanical slots  860  may form interlocking features that may secure frame  810  in place. Additional escape slots  850  may also be included. These slots may act similar to mechanical slots  860  to improve adhesion. Escape slots  850  may also increase a spacing between solder pads  840  and traces  842 , thereby reducing the possibility that they are shorted together by solder during assembly. Pins  870  may be molded or inserted into frame  810 . Pins  870  may provide additional signal, power, and ground routes between top printed circuit board  210  and bottom printed circuit board  220 . Pins  870  may also provide mechanical strength to frame  810 . Pins  870  may also provide a hard stop (similar to hard stops  740  in  FIG. 7 ) that may be used to accurately set a thickness of the encapsulation material and therefor the thickness of the resulting system-in-package module. For example, frame  810  may be pliable and compressible. Using pins  870  as hard stops may prevent this compression and maintain a thickness of frame  810  during assembly. 
     In these and other embodiments of the present invention, interconnect between components on top printed circuit board  210  and bottom printed circuit board  220  may be included on a LDS frame. Examples are shown in the following figures. 
       FIG. 9  illustrates a portion of a system-in-package module according to an embodiment of the present invention. In this example frame  910  may be formed around intermediate layer  110 . Frame  910  may be an LDS or other frame. An outside edge of frame  910  may be shielded with metallic layer  920 . Contacts  922  may connect to shielding layer  920  and provide a ground path between top printed circuit board  210  and bottom printed circuit board  220 . Signal paths  930  may also be provided from top printed circuit board  210  to bottom printed circuit board  220 . 
     In these examples, metal interconnect may be formed on LDS frame  910  by a laser abrading the desired conductive pads. The desired conductive paths may then be plated to complete frame  910 . 
       FIG. 10  illustrates another portion of a frame according to an embodiment of the present invention. Frame  1010  may include signal paths  1030 , which may route from a top of frame  1010  to a bottom of frame  1010 . As illustrated, interconnect or signal paths  1030  do not need to be formed using straight lines, but may form any pattern and may also be used to provide a lateral translation in the signal path. Tabs  1020  may connect to ground or shield regions of frame  1010 . Tabs  1020  may be soldered to either or both top printed circuit board  210  and bottom printed circuit board  220  during assembly. 
       FIG. 11  illustrates another portion of a frame according to an embodiment of the present invention. In this example, frame  1110  may include outside shielding  1120 . Contacts  1122  may connect to shielding  1120  and may provide ground pathways between top printed circuit board  210  and bottom printed circuit board  220 . Signal paths  1130  may also be included from a top of frame  1110  to a bottom of frame  1110 . 
       FIG. 12  illustrates a portion of a system-in-package module according to an embodiment of the present invention. In this example, intermediate layer  110  may be surrounded by frame  1210 . An outside edge of frame  1210  may be plated with ground shield  1220 . Contacts  1222  may provide ground connections between top printed circuit board  210  and bottom printed circuit board  220 . Signal pathways  1230  may be used for communications between circuits on top printed circuit board  210  and bottom printed circuit board  220 . 
       FIG. 13  illustrates a portion of a frame according to an embodiment of the present invention. In this example, an outside edge of frame  1310  may be formed of metal  1320 . This outside edge of metal  1320  may include lip  1322 . Lip  1322  may be used in aligning top printed circuit board  210  and bottom printed circuit board  220  to frame  1310 . In this example, the relatively thick metal  1320  may provide mechanical support for frame  1310 , as well as shielding, grounding, heat dissipation, and other purposes. 
     In various embodiments of the present invention, other types of structures may be used for signal pathways. Examples are shown in the following figures. 
       FIG. 14  illustrates a portion of a frame according to an embodiment of the present invention. In this example, metallic pins  1420  may be inserted into LDS or plastic frame  1410 . Shielding  1430  may connect to one or more of the pins  1420 , shown here as pin  1440 . Pins  1420  may be used to convey signals between top printed circuit board  210  and bottom printed circuit board  220 , while pins  1440  may provide ground paths between the boards. The frame of  FIG. 14  may be formed in various ways. An example is shown in the following figure. 
       FIG. 15  illustrates a method of manufacturing a portion of a frame according to an embodiment of the present invention. In this example, metal plate  1510  may include openings  1516  defining pins  1518 . LDS or other plastic may be molded around pins  1518  to form frame  1520 . A top section  1512  and bottom section  1514  of metal plate  1510  may be removed, thereby leaving behind a plastic or LDS frame  1520  with embedded pins  1518 . In these and other embodiments of the present invention, pins  1518  may instead, or also, be inserted into frame  1520  after molding. For example, a tool used to form frame  1520  may leave holes in frame  1520  such that pins  1518  may be mechanically pushed into the holes. 
     In these and other embodiments of the present invention, it may be desirable to transfer very high-speed or radio-frequency signals from top printed circuit board  210  to bottom printed circuit board  220 . Examples of frames that may be used for this are shown in the following figures. 
       FIG. 16  illustrates a top view of a shielded signal path in a portion of a frame according to an embodiment of the present invention. Frame  1610  may include pins  1620  and  1640 . Pins  1620  may convey a signal, while pins  1640  may be grounded. Ground shield layers  1630  may also be included on sides of frame  1610 . In this way, a signal on signal pin  1620  may be shielded. 
     In these and other embodiments of the present invention, it may be desirable to improve a strength of these contacts. An example of how this may be done is shown in the following figure. 
       FIG. 17  illustrates a side cross-section view of a portion of the frame of  FIG. 16 . In this example, frame  1610  may include signal pin  1620  as before in  FIG. 16 . A domed structure  1622  may be formed, deposited, or otherwise located on a top surface of pin  1620 . This domed structure  1622  may improve a strength of pin  1620 . 
       FIG. 18  illustrates a side view of a portion of the frame of  FIG. 16 . In this example, frame  1610  may include signal pin  1620  as before in  FIG. 16 . A domed structure  1822  may be formed as part of frame  1610 . That is, domed structure  1822  may be molded along with the other portions of frame  1610 . This domed structure  1822  may improve a strength of pin  1620 . The dome structure  1822  may help to reduce an amount of solder that would otherwise be displaced when frame  1610  is soldered to top printed circuit board  210  and bottom printed circuit board  220 . The domed structures  1822  may also reduce stress on frame  1610 . An interconnect trace may be formed on top of the bump when the domed structure  1822  and frame  1610  are formed of LDS. Side ground plating may be used to form ground shield layers  1630 . 
     In these and other embodiments of the present invention, other structures capable of supporting very high-speed signals through a frame or as a standalone or other structure, may be provided. An example is shown in the following figure. 
       FIGS. 19A-19I and 20A-20B  illustrate methods of manufacturing a high-speed path according to an embodiment of the present invention. These high-speed paths may be located in a frame, they may be standalone structures, or they may be used in other ways. 
     In  FIG. 19A , an LDS block  1900  is provided. In  FIG. 19B , passage or opening  1910  may be drilled using a laser. This may activate the inside surface for forming a layer of plating  1920  in  FIG. 19C . 
     From this point, at least three different methods may be used. For example, in  FIG. 19D , LDS or hot melt molding  1930  may be used to fill opening  1910 . In  FIG. 19E , second laser drilling may form opening  1940  which again may activate inside surface. Plating  1950  may then fill opening  1940  to complete the structure as shown in  FIG. 19F . 
     In this example, plating  1915  may convey a signal. Plating  1950  may be surrounded by plating  1920 , which may be circular or have another shape. Plating  1920  may be grounded to provide a shield for plating  1950 . 
     Alternatively, after  FIG. 19C , a conductive core  1960  may be inserted in opening  1910 , in  FIG. 19G . In  FIG. 19H , molding  1970  may fill the gap between conductive core  1960  and plating  1920 . Conductive core  1960  may be trimmed to form signal pathways  1980  to complete the structure shown in  FIG. 19I . 
     In this example, signal pathway  1980  may convey a signal. Signal pathway  1980  may be surrounded by plating  1920 , which may be circular or have another shape. Plating  1920  may be grounded to shield signal pathway  1980 . 
     In  FIG. 20A , a section of a coaxial cable may be formed. This section may include central conductor  2010 , dielectric or insulation  2020 , shield  2030 , and outside insulation layer  2040 . Outside insulation layer may be removed. The remaining cable portion may be inserted in the frame portion of  FIG. 19C , such that shield  2030  contacts plating  1920  on an inside of passage or opening  1910 . 
     In  FIG. 20B , central conductor  2010  may convey a signal. Central conductor  2010  may be surrounded by shield  2030  and plating  1920 , which may be circular or have another shape. Plating  1920  and shield  2030  may be connected to ground in order to shield central conductor  2010 . This coaxial connector may be housed in LDS block  1900 , which may be located in a frame, in a standalone structure, or which may be used in other ways. 
     The techniques of  FIGS. 19 and 20 , and similar techniques, may be used to form other structures. An example is shown in the following figure. 
       FIGS. 21A-21D  illustrate a method of forming interconnect according to an embodiment of the present invention. This interconnect may be used as a portion of a frame, as a standalone structure, or in other ways. In  FIG. 21A , an LDS block  2100  may be provided. In  FIG. 21B , portions of a top surface a bottom surface of the block may be activated and plated, resulting in plating  2110 . A second LDS mold  2120  may be formed on a top and bottom of block  2100 , in  FIG. 21C . This second LDS mold may be a lower temperature material to prevent destruction of block  2100  during the formation of mold  2120 . In  FIG. 21D , a trench  2130  may be formed through the second LDS mold  20 . This portion of the surface may be plated with plating  2140  to provide a contact from plating  2140  to lower plating  2110 . 
     In several of the above embodiments, the frames may provide several features. These features may include providing mechanical stability between two facing printed circuit boards of a SIP module. A frame may also provide a boundary for a potting or molding material during assembly. These features may include providing paths for power and signals. The frames may further include shielding for the SIP modules, for example along an outside edge of the SIP module. 
     In these and other embodiments of the present invention, one or more of these features may be performed by one or more different structures. For example, a frame that does not include paths for power and signals may be used. This frame may be relatively thin as compared to a frame that does include these paths. This frame may be used for mechanical stability between two facing printed circuit boards, and a may provide a boundary for potting or molding material during assembly. This frame may also provide shielding along an outside of a SIP module. To make up for the loss of power and signal paths, connectors may be used between two facing boards. A frame and connector may be formed as a unit, or the frame and connector may be formed separately. The combined space required by this thin frame and connectors may be smaller than a frame that includes both. These connectors may also allow a SIP module to be reworked during assembly. 
     In these and other embodiments of the present invention, these frames may be formed of metal, such as copper, copper nickel, copper titanium, aluminum, steel, or other copper alloy or other material. These frames may be stamped, middle injection molded, 3-D printed, or formed in other ways. These frames may be formed of plastic and plated or otherwise coated with a conductive material. A frame may extend as a single piece from a top board to a bottom board. In these and other embodiments of the present invention, a frame may be formed of two sections, where a first section is attached to a top board and a second section is attached to a bottom board. These two sections may include interlocking features and may be attached during assembly of the SIP module. An example of such a frame shown in the following figure. 
       FIG. 22  illustrates a portion of a metallic frame according to an embodiment of the present invention. In this example, frame  2210  may be a thin metallic frame. Frames  2210  may be formed of metal, such as copper, copper nickel, copper titanium, aluminum, steel, or other copper alloy or other material. This frame  2210  may be stamped, middle injection molded, 3-D printed, or formed in other ways. Frame  2210  may be located along an edge of a SIP module. Frame  2210  may be located around components (not shown) which may be placed in region  2220 . Frame  2210  may provide mechanical support for a top board and a bottom board (not shown.) Frame  2210  may provide a boundary for potting or molding material that may be inserted or otherwise placed in region  2220  during assembly, for example using the method of  FIG. 3 . Frame  2210  may also provide shielding for a SIP module. Frame  2210  may provide a ground path from a top board (not shown) to a bottom board (not shown) of the SIP module. In these and other embodiments of the present invention, frame  2210  may be formed as a single piece that is connected to both a top board and a bottom board. In these and other embodiments of the present invention, frame  2210  may be formed in two portions that fit or snap together during assembly. One of these portions may be attached to a top board, while another portion may be attached to a bottom board. 
     For example, as shown in  FIG. 2 , a frame, for example frame  2210  or another frame shown herein or otherwise consistent with an embodiment of the present invention, may join bottom printed circuit board  220  (shown in  FIG. 2 ) with top printed circuit board  210  (shown in  FIG. 2 .) 
     As with the other frames shown herein or other frames consistent with embodiments of the present invention, frame  2210  may be located around components (not shown) located in region  2220  on facing surfaces of top printed circuit board  210  and bottom printed circuit board  220 . In this example, a first component (not shown) on a surface of top printed circuit board  210  may be in region  2220  of frame  2210 . Similarly, a second component (not shown) on a surface of bottom printed circuit board  220  may be in region  2220  of frame  2210 . The first component may connect through a first trace in top printed circuit board  210  to a first contact pad on the surface of top printed circuit board  210 . The first contact pad may connect to a second contact pad on a surface of the bottom printed circuit board  220  via a connector, such as one of the connectors shown below. A second trace in the bottom printed circuit board  220  may connect the second contact pad to the second component. The region  2220  may be encapsulated in each of the frames shown herein and that are consistent with embodiments of the present invention. 
     These contact pads, sometimes referred to as contacts above, may be printed regions on a top surface of a printed surface board. The term contact pad may be used to differentiate from the term contact used in connectors in the embodiments described below. 
     As with the other frames shown herein or other frames consistent with embodiments of the present invention, only a portion of frame  2210  is shown. Frame  2210 , and the other frames herein, may formed a closed loop, or more than one closed loop, or they may have one or more open ends. 
     Frame  2210  may convey a ground or other power supply between the top board in a bottom board. The size of frame  2210  may be greatly reduced by not having it convey other power supplies or signals. Accordingly, embodiments of the present invention may further include one or more connectors that may be used in conjunction with frame  2210 . These connectors may be formed as part of frame  2210 . Frame  2210  may be formed as part of these connectors. These connectors may extend along and inside the length of frame  2210 , or they may be separate from frame  2210 . Examples are shown in the following figures. 
       FIGS. 23A-23C  illustrate a method of manufacturing a frame and connector according to an embodiment of the present invention. In this example, a number of compliant wires  2330  may be attached to a board or metal sheet  2320 . For example, wires  2330  may be soldered or otherwise attached to a board or metal sheet  2320 , as shown in  FIG. 23A . An insert molding  2340  may be formed around wires  2330 , as shown in  FIG. 23B . Frame  2310  may be formed around an outside surface of insert molding  2340 . Frame  2310  may be formed by stamping, metal-injection molding, machining, micro-machining, ink-jet, 3-D, plating, aerosol-jet, or other type of printing, or other manufacturing process. In  FIG. 23C , board or metal sheet  2320  may be removed. This additive process may save space and may be readily modified to fit different shapes and sizes of SIP modules. A SIP module may then be formed where base portion  2332  of wire  2330  may physically and electrically connect to a first contact pad (not shown) on a bottom printed circuit board (not shown.) A tip  2334  may electrically connect to a second contact pad (not shown) on a top printed circuit board (not shown) to form an electrical path between one or more components of the top printed circuit board and one or more components on the bottom printed circuit board. The connection between tip  2334  and the second contact pad may be physical or it may be through a contact of a connector  2510  (shown in  FIG. 25 .) A top  2313  and a bottom  2315  of frame  2310  may physically and electrically connect to contact pads on the top printed circuit board and the bottom printed circuit board to form a ground or other path between the boards. 
     In this example, frame  2310  may be formed. Frame  2310 , as with the other frames described below, may have the same or similar attributes as frame  2210  above. 
     Wires  2330  may be compliant wires that may form electrical connections between two boards (not shown.) In these and other embodiments of the present invention, other types of wires coming different shapes may be used. An example is shown in the following figure. 
       FIGS. 24A-24C  illustrate a method of manufacturing a frame and connector according to an embodiment of the present invention. In  FIG. 24A , a number of wires  2430  may be attached to board  2420 . In  FIG. 24B , an insert molding  2440  may be formed around wires  2430 . Board  2420  may be singulated, trimmed, or removed and frame  2410  may be formed along an outside edge of insert molding  2440  in  FIG. 24C . Frame  2410  may be formed by stamping, metal-injection molding, machining, micro-machining, ink-jet, 3-D, plating, aerosol-jet, or other type of printing, or other manufacturing process. A SIP module may then be formed where base portion  2432  of wire  2430  may physically and electrically connect to a first contact pad (not shown) on a bottom printed circuit board (not shown.) A tip  2434  may electrically connect to a second contact pad (not shown) on a top printed circuit board (not shown) to form an electrical path between one or more components of the top printed circuit board and one or more components on the bottom printed circuit board. The connection between tip  2434  and the second contact pad may be physical or it may be through a contact of a connector (not shown.) A top  2413  and a bottom  2415  of frame  2410  may physically and electrically connect to contact pads on the top printed circuit board and the bottom printed circuit board to form a ground or other path between the boards. 
     These contacts, such as those formed by wires  2330  and  2430 , may terminate in a second board in various ways. A connector that may be used is shown in the following figure. 
       FIG. 25  illustrates a connector for a frame according to an embodiment of the present invention. As before, wires  2330  may be encased in insert mold  2340  and shielded by frame  2310 . Connector  2510  having contacts  2520  may mate with wires  2330 . Again, a top printed circuit board (not shown) may be attached to wires  2330 , and a bottom printed circuit board (not shown) may be attached to contacts  2520  at contacting portions  2522 . 
       FIG. 26  illustrates a structure for contacting wires in a connector according to an embodiment of the present invention. Again in this example, frame  2310  may be formed on the side of insert molding  2340 , which may house wires  2330 . Board  2610  may include via holes  2614  that are plated with layers  2612 . A connection between layer  2612  and wire  2330  may be formed by soldering or other method. 
       FIG. 27A-27C  illustrate a method of manufacturing a frame and connector according to an embodiment of the present invention. In  FIG. 27A , a number of compliant wires  2730  may be attached to board  2720 . Insert molding  2740  may be formed around wires  2730  in  FIG. 27B . Frame  2710  may be formed on the outside surface of insert molding  2740  and board  2720  may be singulated, trimmed, or removed in  FIG. 27C . Frame  2710  may be formed by stamping, metal-injection molding, machining, micro-machining, ink-jet, 3-D, plating, aerosol-jet, or other type of printing, or other manufacturing process. A SIP module may then be formed where base portion  2732  of wire  2730  may physically and electrically connect to a first contact pad (not shown) on a bottom printed circuit board (not shown.) A tip  2734  may electrically connect to a second contact pad (not shown) on a top printed circuit board (not shown) to form an electrical path between one or more components of the top printed circuit board and one or more components on the bottom printed circuit board. The connection between tip  2734  and the second contact pad may be physical or it may be through a contact of a connector (for example, connector  2510  in  FIG. 25 .) A top  2713  and a bottom  2715  of frame  2710  may physically and electrically connect to contact pads on the top printed circuit board and the bottom printed circuit board to form a ground or other path between the boards. 
     In these and other embodiments of the present invention, various connectors may be used as part of, or along with, a frame. These connectors may be used in conjunction with signal and power connectors that may form interconnect paths from a top board to a bottom board in a SIP module. Examples are shown in the following figures. 
       FIGS. 28A-28C  illustrate a connector system according to an embodiment of the present invention. In  FIG. 28A , top board  2820  may be attached to connector  2822 . Connector  2822  may include contact  2824 . Connector  2850  may also be attached to top board  2820 . Housings or other portions of connector  2850  and connector  2822  may be separately or integrally formed. Connector  2850  may include contact  2852 . In  FIG. 28B , bottom board  2830  may support frame  2810  as well as connector  2860 , which may support contact  2862 . During assembly, frame  2810  may be inserted into connector  2822 , where it may physically and electrically connect to contact  2824 . Contact  2824  may be one contact, it may be one long contact along the entire or most of the length of frame  2810 , it may be several contacts broken up along a length of frame  2810 , or may have another configuration. Contact  2862  on connector  2860  may mate with contacts  2852  of connector  2850  to form electrical connections for signals or power between devices (not shown) on top board  2820  and devices (not shown) on bottom board  2830 . 
     Again, frames, like frames  2210  and  2810 , may be formed in sections and then joined. An example is shown in the following figure. 
       FIG. 29  illustrates a portion of a SIP module according to an embodiment of the present invention. In this example, the frame is formed into sections, namely bottom section  2910  which may be attached to a bottom board  2930 , and top section  2911 , which may be attached to a top board  2920 . Bottom section  2910  and top section  2911  of the frame may be joined using interlocking features  2913 . Interlocking features  2913 A may include a protrusion, extension, or widened portion on top section  2913 B that may fit in notch or narrowed portion on bottom section  2910 . 
     In these and other embodiments of the present invention, various board-to-board connectors may be used. These board two board connectors may include a plug attached to a first or top printed circuit board and a receptacle attached to a second or bottom printed circuit board. The board-to-board connectors may include contacts that may be soldered to contact pads on the top printed circuit board and the bottom printed circuit board. The board-to-board connectors may to form electrical connections for signals or power between devices on the top printed circuit board and devices on the bottom printed circuit board. 
     For example, a first component on a top printed circuit board may connect through a trace in the top printed circuit board to a first contact pad. A first contact in a plug of a board-to-board connector may physically and electrically connect to the first contact pad. The first contact in the plug may mate with a second contact in the receptacle of the board-to-board connector. The second contact in the receptacle may physically and electrically connect to a second contact pad on the bottom board. The second contact pad on the bottom board may connect through a trace of the bottom printed circuit board to a second component on the bottom board. Examples of these board-to-board connectors are shown in the following figures. 
       FIG. 30  illustrates a board-to-board connector according to an embodiment of the present invention. Board-to-board connector  3000  may be used along with a frame, such as frame  2210  and the other frames shown above. Plug  3010  may include contacts  3012  supported by housing  3014 . Contacts  3012  may mate with contacts  3022  in housing  3024  of receptacle  3020 . Plug  3010  may include endcap  3018 , while receptacle  3020  may include an opening  3028  to accept endcap  3018 . 
       FIG. 31  illustrates a cutaway side view of the board-to-board connector of  FIG. 30 . In this example, contacts  3012  may be housed in housing  3014  of plug  3010 . Contacts  3012  may mate with contacts  3022  which may be in housing  3024  of receptacle  3020 . Contacts  3022  and  3012  may mate at location  3030 . This arrangement may provide a small face-saving board-to-board connector. 
     In various embodiments of the present invention, it may be desirable to strengthen these board-to-board connectors. Accordingly, an endcap of a board-to-board connector may be increased in size. An example is shown in the following figure. 
       FIG. 32  illustrates another board-to-board connector according to an embodiment of the present invention. In this example, board-to-board connectors  3200  may include a larger endcap  3218 . Endcap  3218  may be larger than, for example endcap  3018  as shown in  FIG. 30 . Receptacle  3220  may include opening  3228  for accepting endcap  3218 . 
       FIG. 33  illustrates a plug for a board-to-board connector according to an embodiment of the present invention. In this example, plug  3330  may include contacts  3310  in housing  3320 . Plug  3300  may mate with receptacle  3400 , as shown in  FIG. 34 . 
       FIG. 34  illustrates a receptacle for a board-to-board connector according to an embodiment of the present invention. Receptacle  3400  may include a center portion  3440 , which may fit in recess  3340  in housing  3320  of plug  3300  (shown in  FIG. 33 .) Central portion  3440  may be a part of housing  3420 , which may support contacts  3410  in receptacle  3400 . 
     Plug  3300  is shown in more detail in  FIGS. 35A-35D . Plug  3300  may include contacts  3310  in housing  3320 , as shown in  FIGS. 35A-35D . 
       FIG. 36  illustrates another plug for a board-to-board connector according to an embodiment of the present invention. Plug  3600  may be used with a similar receptacle as receptacle  3400  shown in  FIG. 34 . Plug  3600  may include recess or central portion  3640 , which may be lined by contacts  3610  supported by housing  3620 . Various views of plug  3600  are shown in  FIGS. 37A-37D . Again contacts  3610  may be supported by housing  3620 , as shown in  FIGS. 37A-37D . 
       FIGS. 38A-38C  illustrate another board-to-board connector according to an embodiment of the present invention. In  FIG. 38A , plug  3810  may be inserted into receptacle  3820 . Contacts  3812  of plug  3810  may electrically connect to contacts  3822  in receptacle  3820 . Contacts  3812  may be supported by housing  3814  in plug  3810 , while contacts  3822  may be supported by housing  3824  of receptacle  3820 . In  FIG. 38B , housing  3824  has been removed to expose contacts  3822  in receptacle  3820 .  FIG. 38C  illustrates a bottom side view of board-to-board connector  3800 . 
     It should be noted that while the interconnect structures described above are well-suited to forming system-in-package modules, in these other embodiments of the present invention, other types of electronic devices may be formed using these techniques. 
     In various embodiments of the present invention, frames, contacts, interconnect paths, and other conductive portions of SIP modules may be formed by stamping, metal-injection molding, machining, micro-machining, ink-jet, 3-D, plating, aerosol-jet, or other type of printing, or other manufacturing process. The conductive portions may be formed of stainless steel, steel, copper, copper titanium, phosphor bronze, or other material or combination of materials. They may be plated or coated with nickel, gold, or other material. The nonconductive portions may be formed using injection or other molding, ink-jet, 3-D, aerosol-jet, or other type of printing, machining, or other manufacturing process. The nonconductive portions may be formed of silicon or silicone, rubber, hard rubber, plastic, nylon, liquid-crystal polymers (LCPs), plastic, epoxy, resin, or other nonconductive material or combination of materials. The printed circuit boards used may be formed of FR-4, BT or other material. Printed circuit boards may be replaced by other substrates, such as flexible circuit boards, in many embodiments of the present invention, while flexible circuit boards may be replaced by printed circuit boards in these and other embodiments of the present invention. 
     Embodiments of the present invention may provide SIP modules that may be located in various types of devices, such as portable computing devices, tablet computers, desktop computers, laptops, all-in-one computers, wearable computing devices, cell phones, smart phones, media phones, storage devices, portable media players, navigation systems, monitors, power supplies, adapters, remote control devices, chargers, and other devices. 
     The above description of embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form described, and many modifications and variations are possible in light of the teaching above. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications to thereby enable others skilled in the art to best utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. Thus, it will be appreciated that the invention is intended to cover all modifications and equivalents within the scope of the following claims.

Metadata:
Filing Date: 20180928
Publication Date: 20200428
Grant Date: 20200428
Priority Date: 20170908
Inventors: HOANG, LAN H.
CHAWARE, RAGHUNANDAN R.
LIU, CHANG
KATAHIRA, TAKAYOSHI
Assignee: APPLE INC
CPC Classifications: [{"code": "H05K1/181", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K1/111", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K1/0243", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R12/73", "inventive": true, "first": false, "tree": "[]"}, {"code": "B23Q1/015", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K1/144", "inventive": true, "first": true, "tree": "[]"}, {"code": "H05K2201/2018", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/144", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01R12/716", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R12/716", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K2201/042", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/10287", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01R12/7005", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R43/26", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/042", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/1031", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/2018", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/10287", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/042", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2201/2018", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/0243", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K2201/1031", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/111", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R43/26", "inventive": false, "first": false, "tree": "[]"}, {"code": "B23Q1/015", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K1/181", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K1/144", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01R12/73", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R12/716", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R12/7005", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R12/73", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 65631997