Patent Publication Number: US-2022223641-A1

Title: Image sensor package having a cavity structure for a light-transmitting member

Description:
TECHNICAL FIELD 
     This description relates to an image sensor package having a cavity structure for a light-transmitting member. 
     BACKGROUND 
     An image sensor package may use a bonding material to couple a glass substrate to an image sensor die. Also, the bonding material may operate as a dam member in which the bonding material positions the glass substrate at a location away from an active area of the image sensor die, where the bonding material is disposed on a non-active area of the image sensor die. However, for some conventional image sensor packages, thermal and/or moisture stress may lead to the delamination of the glass bonding interface and potentially moisture intrusion into the active region of the image sensor die. 
     SUMMARY 
     According to an aspect, an image sensor package includes a substrate, an image sensor die coupled to the substrate, at least one conductor connected to the image sensor die and the substrate, and a light-transmitting member including a substrate member, a first leg member extending from a first edge portion of the substrate member, and a second leg member extending from a second edge portion of the substrate member, the first leg member being coupled to the substrate, the second leg member being coupled to the substrate. 
     According to some aspects, the image sensor package may include one or more of the following features. The light-transmitting member includes a cavity that extends between the first leg member and the second leg member. The image sensor die is disposed within the cavity. At least a portion of the at least one conductor is disposed within the cavity. The first leg member is coupled to the substrate with a bonding material, and the second leg member is coupled to the substrate with a bonding material. The substrate member is a linear body having a length greater than a length of the image sensor die, where the substrate member includes a first surface and a second surface. The first leg member extends from the second surface at a first non-zero angle with respect to the second surface. The second leg member extends from the second surface at a second non-zero angle with respect to the second surface. The first non-zero angle is a perpendicular angle, and the second non-zero angle is a perpendicular angle. The image sensor package may include an encapsulation material including a first portion that contacts at least a portion of the first leg member and a second portion that contacts at least a portion of the second leg member. The substrate includes a first surface and a second surface. The image sensor die is coupled to the first surface. The image sensor package includes a plurality of conductive components coupled to the second surface of the substrate, where the plurality of conductive components are configured to be connected to an external device. The image sensor package is an interstitial ball grid array (iBGA) package. 
     According to an aspect, an image sensor strip assembly having multiple image sensor packages, where the image sensor strip assembly includes a substrate, a first image sensor die coupled to a first portion of the substrate, and a first light-transmitting member coupled to the first portion of the substrate. The first light-transmitting member includes a substrate member, a first leg member extending from the substrate member, and a second leg member extending from the substrate member. The image sensor strip assembly includes a second image sensor die coupled to a second portion of the substrate, and a second light-transmitting member coupled to the second portion of the substrate. The second light-transmitting member includes a substrate member, a first leg member extending from the substrate member, and a second leg member extending from the substrate member. 
     According to some aspects, the image sensor strip assembly includes an encapsulation material including a portion disposed between the second leg member of the first light-transmitting member and the first leg member of the second light-transmitting member. The image sensor strip assembly includes a third image sensor die coupled to a third portion of the substrate, and a third light-transmitting member coupled to the third portion of the substrate. The third light-transmitting member includes a substrate member, a first leg member extending from the substrate member, and a second leg member extending from the substrate member. The encapsulation material includes a portion disposed between the second leg member of the second light-transmitting member and the first leg member of the third light-transmitting member. The first leg member of the first light-transmitting member is coupled to the first portion of the substrate, and the second leg member of the first light-transmitting member is coupled to the first portion of the substrate. The image sensor strip assembly includes at least one first conductor connected to the first image sensor die and the first portion of the substrate, and at least one second conductor connected to the second image sensor die and the second portion of the substrate. The first leg member of the first light-transmitting member is coupled to the first portion of the substrate with a bonding material, and the second leg member of the first light-transmitting member is coupled to the first portion of the substrate with a bonding material. The substrate member of the first light-transmitting member is a linear body having a length greater than a length of the first image sensor die, where the substrate member of the first light-transmitting member includes a first surface and a second surface, and the first leg member of the first light-transmitting member extends from the second surface at a perpendicular angle with respect to the second surface, and the second leg member of the first light-transmitting member extends from the second surface at a perpendicular angle with respect to the second surface. The substrate includes a first surface and a second surface, where the first image sensor die is coupled to the first surface, and the second image sensor die is coupled to the first surface. The image sensor strip assembly includes a plurality of solder balls coupled to the second surface of the substrate, where the plurality of solder balls is configured to be connected to an external device. 
     According to an aspect, a method of creating individual image sensor packages includes receiving an image sensor strip assembly, where the image sensor strip assembly includes a substrate, a first image sensor die coupled to a first portion of the substrate, and a first light-transmitting member coupled to the first portion of the substrate. The first light-transmitting member includes a substrate member, a first leg member extending from the substrate member, and a second leg member extending from the substrate member. The image sensor strip assembly includes a second image sensor die coupled to a second portion of the substrate, and a second light-transmitting member coupled to the second portion of the substrate, where the second light-transmitting member includes a substrate member, a first leg member extending from the substrate member, and a second leg member extending from the substrate member. The image sensor strip assembly includes an encapsulation material including a portion disposed between the second leg member of the first light-transmitting member and the first leg member of the second light-transmitting member. The method includes cutting the portion of the encapsulation material that is disposed between the second leg member of the first light-transmitting member and the first leg member of the second light-transmitting member, and cutting the substrate at a location between the first portion of the substrate and the second portion of the substrate. 
     According to an aspect, a method of forming an image sensor package includes etching a light-transmitting member to create a cavity structure, where the cavity structure is defined by a substrate member, a first leg member extending from a first edge portion of the substrate member, and a second leg member extending from a second edge portion of the substrate member. The method includes coupling an image sensor die to a substrate, connecting at least one conductor to the image sensor die and the substrate, and coupling the cavity structure to the substrate using a bonding material such that the first and second leg members are coupled to the substrate and the image sensor die is enclosed in the cavity structure. 
     The details of one or more implementations are set forth in the accompanying drawings and the description below. Other features will be apparent from the description and drawings, and from the claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1A  illustrates an image sensor package according to an aspect. 
         FIG. 1B  illustrates a light-transmitting member of the image sensor package according to an aspect. 
         FIG. 2  illustrates an image sensor package according to another aspect. 
         FIG. 3  illustrates an image sensor package according to another aspect. 
         FIG. 4  illustrates an image sensor strip assembly having multiple image sensor packages according to an aspect. 
         FIG. 5  illustrates a flowchart depicting example operations of creating multiple image sensor packages from an image sensor strip assembly according to an aspect. 
         FIG. 6  illustrates a flowchart depicting example operations of assembling an image sensor package according to an aspect. 
     
    
    
     DETAILED DESCRIPTION 
     The present disclosure relates to an image sensor package that includes a light-transmitting member that defines a cavity. The light-transmitting member includes a substrate member, a first leg member that extends from the substrate member (e.g., at a non-zero angle), and a second leg member that extends from the substrate member (e.g., at a non-zero angle). In some examples, the cavity of the light-transmitting member is formed by removing a portion of the light-transmitting member, thereby creating the first and second leg members in which the space between the first leg member and the second leg member defines the cavity. The first and second leg members are coupled to a substrate such that an image sensor die is positioned within the cavity of the light-transmitting member. The image sensor packages (and methods) discussed herein may reduce the development time to produce such packages and decrease production costs, as well as increase the durability of an image sensor package. Also, the image sensor package includes an encapsulation material that contracts the interface of the light-transmitting member and the substrate to protect the peripheral of the package side wall and assist with preventing delamination by thermal and/or moisture stress. 
       FIG. 1A  illustrates an image sensor package  100  according to an aspect.  FIG. 1B  illustrates a light-transmitting member  108  of the image sensor package  100  according to an aspect. In some examples, the image sensor package  100  includes an interstitial ball grid array (iBGA) package. In some examples, the image sensor package  100  is an automobile image sensor (e.g., an image sensor designed to be incorporated into a vehicle). However, the image sensor package  100  may be applicable to other types of applications. 
     The image sensor package  100  includes a substrate  104 , an image sensor die  102  coupled to the substrate  104 , conductors  122  coupled to the image sensor die  102  and the substrate  104 , and a light-transmitting member  108 . The light-transmitting member  108  defines a cavity  103 , which may be a portion of the light-transmitting member  108  that has been removed via etching. The light-transmitting member  108  is coupled to the substrate  104  via a bonding material  170  such that the image sensor die  102  is disposed within the cavity  103  of the light-transmitting member  108 . The conductors  122  are also disposed within the cavity  103  of the light-transmitting member  108 . The image sensor package  100  includes an encapsulation material  115  that is applied to the substrate  104  and the light-transmitting member  108 . 
     The substrate  104  includes a dielectric material. In some examples, the substrate  104  includes a single layer of dielectric material. In some examples, the substrate  104  includes multiple layers of dielectric material. In some examples, the substrate  104  includes a printed circuit board (PCB) substrate (e.g., a single layer of PCB or multiple layers of PCB). In some examples, the substrate  104  includes a copper clad laminate (CCL) substrate. 
     The substrate  104  includes a first surface  116  and a second surface  118  that is disposed opposite to the first surface  116 . The second surface  118  may be parallel with the first surface  116 . The distance between the first surface  116  and the second surface  118  may define the thickness of the substrate  104  in a direction A 1 . The substrate  104  includes a first edge  153  and a second edge  155 . The second edge  155  may be parallel to the first edge  153 . The first edge  153  and the second edge  155  may be perpendicular to the first surface  116  and the second surface  118 . The distance between the first edge  153  and the second edge  155  may define a length of the substrate  104  in a direction A 2 . The first surface  116  of the substrate  104  is disposed in a plane A 4 . A direction A 1  is aligned perpendicular to the plane A 4 , and a direction A 2  is perpendicular to the direction A 1 . A direction A 3  into the page (shown as a dot) is aligned parallel to the plane A 4  and is orthogonal to directions A 1  and A 2 . The directions A 1 , A 2 , and A 3 , and plane A 4 , are used throughout several of the various views of the implementations described throughout the figures for simplicity. 
     In some examples, the substrate  104  includes one or more conductive layer portions (e.g., traces) disposed on the first surface  116  of the substrate  104 , and/or one or more conductive layer portions (e.g., traces) disposed on the second surface  118  of the substrate  104 . In some examples, the one or more conductive layer portions on the substrate  104  include electrical (or conductive) traces. The electrical traces may be configured to and/or used to transmit signals to and/or from devices (e.g., electronic devices included in a semiconductor region (e.g., epitaxial layer and/or semiconductor substrate) connected to the electrical traces. In some examples, the electrical traces can include conductive traces (e.g., metallic traces) such as copper traces, aluminum traces, and/or so forth. In some examples, the electrical traces include a relatively flat, narrow part of a copper foil that remains after etching. In some examples, the substrate  104  is a CCL substrate with copper traces (on both surfaces) with a pre-preg core (e.g., pre-impregnated with resin), where the copper traces are formed by photolithography patterning from a copper foil. 
     The image sensor die  102  includes a first surface  124  and a second surface  126 . The second surface  126  is disposed in parallel with the first surface  124 . The distance between the first surface  124  and the second surface  126  may define the thickness of the image sensor die  102  in the direction A 1 . The image sensor die  102  includes a first edge  141  and a second edge  143 . The second edge  143  is disposed in parallel with the first edge  141 . The distance between the first edge  141  and the second edge  143  may define a length of the image sensor die  102  in the direction A 2 . 
     The image sensor die  102  includes an active region  101 . The active region  101  is defined on a portion of the first surface  124  of the image sensor die  102 . The active region  101  includes, or corresponds with, an array of pixel elements configured to convert electromagnetic radiation (e.g., light) to electrical signals. An area outside of the active region  101  may be considered a non-active region. In some examples, the image sensor die  102  includes a complementary metal-oxide semiconductor (CMOS) image sensor. The image sensor die  102  is coupled to the substrate  104 . For example, the second surface of the image sensor die  102  is coupled to the first surface  116  of the substrate  104 . In some examples, the image sensor die  102  is coupled to the substrate  104  via a bonding material (e.g., a die attach film). 
     The conductors  122  are connected to the image sensor die  102  and the substrate  104  in order to communicatively couple the image sensor die  102  to the substrate  104 . For example, a conductor  122  may be coupled to the first surface  124  (outside the active region  101 ) of the image sensor die  102 , and the first surface  116  of the substrate  104 . The conductors  122  may include conductive (e.g., metal) wires such as aluminum, copper, or gold, or any combination thereof, for example. In some examples, the conductors  122  include bond wires. In some examples, the conductors  122  may include conductor members that provide an electrical connection between the image sensor die  102  and the substrate  104 . 
     The light-transmitting member  108  defines a cavity structure that permits a portion of the light-transmitting member  108  to be positioned over the image sensor die  102  and other portions of the light-transmitting member  108  to be coupled to the substrate  104 . The light-transmitting member  108  may include an optically transparent material that allows electromagnetic radiation (e.g., light (e.g., visible light)) to pass through (e.g., pass through the entirety of the material). In some examples, the light-transmitting member  108  includes a glass substrate defining the cavity structure. In some examples, the light-transmitting member  108  includes a transparent (or semi-transparent) cover defining the cavity structure. In some examples, the light-transmitting member  108  includes a transparent (or semi-transparent) lid defining the cavity structure. In some examples, the light-transmitting member  108  includes one or more organic materials and/or one or more inorganic materials. In some examples, the light-transmitting member  108  includes one or more layers of transparent material. 
     The light-transmitting member  108  includes a substrate member  140 , a first leg member  142 , and a second leg member  144 . The substrate member  140 , the first leg member  142 , and the second leg member  144  may form a single unitary piece of material. In some examples, the substrate member  140  is a linear member that extends in the direction A 2 . The length of the substrate member  140  in the direction A 2  is greater than the length of the image sensor die  102  in the direction A 2 . The substrate member  140  may include a first surface  128  and a second surface  130 . The second surface  130  is disposed in parallel with the first surface  128 . The distance between the first surface  128  and the second surface  130  may define the thickness of the substrate member  140  in the direction A 1 . In some examples, the length of the second surface  130  in the direction A 2  is less than the length of the first surface  128  in the direction A 2 . 
     The light-transmitting member  108  includes a first edge  107  and a second edge  109 . The distance between the first edge  107  and the second edge  109  may define the length of the substrate member  140  (and/or the light-transmitting member  108 ) in the direction A 2 . Also, the first edge  107  and the second edge  109  are shared with the first leg member  142  and the second leg member  144 , respectively. The substrate member  140  includes a first end portion  121  and a second end portion  123 . The first end portion  121  may be the portion of the substrate member  140  that is disposed at one end of the substrate member  140 , and the second end portion  123  may be the portion of the substrate member  140  that is disposed at the other end of the substrate member  140  in the direction A 2 . In some examples, the corners of the substrate member  120  are squared (e.g., the first edge  107  being disposed at a perpendicular angle with the first surface  128 , the second edge  109  being disposed at a perpendicular angle with the first surface  128 ). In some examples, the corners of the substrate  120  are rounded. 
     The first leg member  142  may extend from the first end portion  121  of the substrate member  140 . In some examples, the first leg member  142  extends from the substrate member  140  at a non-zero angle with respect to the substrate member  140 . In some examples, at least a portion of the first leg member  142  extends in the direction A 1 . In some examples, the first leg member  142  (in its entirety) extends in the direction A 1 . In some examples, the first leg member  142  is disposed at a perpendicular angle with respect to the substrate member  140 . In some examples, the first leg member  142  is a linear member that extends in the direction A 1 . In some examples, the first leg member  142  includes one or more curved or bent portions. The first leg member  142  may include a first end  171  and a second end  145 , where a distance between the first end  171  and the second end  145  may define the length of the first leg member  142  in the direction A 1 . In some examples, the length of the first leg member  142  in the direction A 1  is less than the length of the substrate member  140  in the direction A 2 . Also, the thickness of the first leg member  142  may be defined by the distance between the first edge  107  and a first inner edge  111  in the direction A 2 . In some examples, the thickness of the first leg member  142  (e.g., in the direction A 2 ) is less than the thickness of the substrate member  140  (e.g., in the direction A 1 ). In some examples, the thickness of the first leg member  142  (e.g., in the direction A 2 ) is equal to (or substantially equal to) the thickness of the substrate member  140  (e.g., in the direction A 1 ). 
     The second leg member  144  may extend from the second end portion  123  of the substrate member  140 . In some examples, the second leg member  144  extends from the substrate member  140  at a non-zero angle with respect to the substrate member  140 . In some examples, at least a portion of the second leg member  144  extends in the direction A 1 . In some examples, the second leg member  144  (in its entirety) extends in the direction A 1 . In some examples, the second leg member  144  is disposed at a perpendicular angle with respect to the substrate member  140 . In some examples, the second leg member  144  is a linear member that extends in the direction A 1 . In some examples, the second leg member  144  includes one or more curved or bent portions. The second leg member  144  may include a first end  173  and a second end  147 , where a distance between the first end  173  and the second end  147  may define the length of the second leg member  144  in the direction A 1 . In some examples, the length of the second leg member  144  is less than the length of the substrate member  140 . Also, the thickness of the second leg member  144  may be defined by the distance between the second edge  109  and a second inner edge  113  in the direction A 2 . In some examples, the thickness of the second leg member  144  (e.g., in the direction A 2 ) is less than the thickness of the substrate member  140  (e.g., in the direction A 1 ). In some examples, the thickness of the second leg member  144  (e.g., in the direction A 2 ) is equal to (or substantially equal to) the thickness of the substrate member  140  (e.g., in the direction A 1 ). 
     In some examples, the second leg member  144  may have the same length as the first leg member  142 . In some examples, the second leg member  144  may have the same thickness as the first leg member  142 . The space between the first leg member  142  and the second leg member  144  defines the cavity  103  of the light-transmitting member  108 . For example, the space between the first inner edge  111  and the second inner edge  113  in the direction A 2  defines the cavity  103  of the light-transmitting member  108 . The space between the second surface  130  of the substrate member  140  and a plane that is aligned with the second end  145  of the first leg member  142  (and the second end  147  of the second leg member  144 ) in the direction A 1  defines the cavity  103  of the light-transmitting member  108 . 
     The first leg member  142  is coupled to the substrate  104  via a bonding material  170  (e.g., an adhesive layer, die attach film, polymer-based material, an epoxy resin, etc.). For example, the second end  145  of the first leg member  142  is coupled to the first surface  116  of the substrate  104  using the bonding material  170 . The second leg member  144  is coupled to the substrate  104  via the bonding material  170 . For example, the second end  147  of the second leg member  144  is coupled to the first surface  116  of the substrate  104  using the bonding material  170 . In some examples, the bonding material  170  has a thickness in the direction A 1  that is substantially less than the length of the first leg member  142  and/or the second leg member  144 . In some examples, the thickness of the bonding material  170  is less than ten percent of the length of the first leg member  142  and/or the second leg member  144 . 
     As shown in  FIG. 1A , the image sensor die  102  is disposed within the cavity  103  of the light-transmitting member  108 . Also, at least a portion of the conductors  122  is disposed within the cavity  103  of the light-transmitting member  108 . The distance between the active region  101  of the image sensor die  102  and the second surface  130  of the substrate member  140  may define the gap height of the image sensor package  100 . 
     The image sensor package  100  includes conductive components  151  coupled to the second surface  118  of the substrate  104 . In some examples, the conductive components  151  are surface-mount packaging elements. In some examples, the conductive components  151  include conductive ball members (e.g., solder balls). The conductive components  151  are components used to connect to an external device (e.g., a ball grid array (BGA) device). However, the conductive components  151  may include other types of surface-mount packaging elements. 
     The image sensor package  100  includes an encapsulation material  115 . The encapsulation material  115  may include one or more molding materials (e.g., in a molding compound if including multiple types of materials). For example, the molding material(s) may include a metal, a plastic, a resin, an epoxy, a phenolic hardener, a silica material, a pigment, a glass, a ceramic casing, and/or so forth. 
     The encapsulation material  115  includes a portion that contacts the substrate  104 , and a portion that contacts and extends along at least a portion the light-transmitting member  108 . The encapsulation material  115  may assist with securing the bonded interface of the light-transmitting member  108  and the substrate  104 . The encapsulation material  115  contacts a portion of the first surface  116  of the substrate  104  at the end portions (or perimeter portions) of the substrate  104 . Also, the encapsulation material  115  contacts and extends along the first leg member  142  and the second leg member  144 . The encapsulation material  115  may contact and extend along at least a portion of the first edge  107  and at least a portion of the second edge  109 . In some examples, the encapsulation material  115  may extend along the entire length of the first edge  107  in the direction A 1  and may extend along the entire length of the second edge  109  in the direction A 1 . In some examples, although not shown in  FIG. 1A , the encapsulation material  115  may contact and extend along a portion of the first surface  128  of the substrate member  140 . 
     In some examples, the encapsulation material  115  includes a first molding edge  132  that defines an end of the encapsulation material  115  in the direction A 2 . In some examples, the first molding edge  132  is linear. In some examples, the first molding edge  132  includes one or more angled or curved portions. In some examples, at least a portion of the first molding edge  132  (or all of the first molding edge  132 ) is aligned with the direction A 1 . In some examples, the first molding edge  132  is disposed at an angle with respect to the direction A 2 . In some examples, at least a portion of the first molding edge  132  (or all of the first molding edge  132 ) is aligned with the first edge  153  (or the second edge  155 ) of the substrate  104 . In some examples, the first molding edge  132  is disposed at a location between the first edge  153  (or the second edge  155 ) of the substrate  104  and first and second edges  107 ,  109  of the light-transmitting member  108 . 
     The encapsulation material  115  may include a second molding edge  134  defining an end of the encapsulation material  115  in the direction A 1 . The second molding edge  134  may extend from the first molding edge  132  to the first and second edges  107 ,  109  of the light-transmitting member  108 . In some examples, the second molding edge  134  is disposed at a non-zero angle with respect to the first molding edge  132 . In some examples, the second molding edge  134  is disposed at an angle that is perpendicular to the first molding edge  132 . In some examples, the second molding edge  134  is linear. In some examples, the second molding edge  134  includes one or more bent or curved portions. 
       FIG. 2  illustrates an image sensor package  200  according to an aspect. The image sensor package  200  may be an example of the image sensor package  100  of  FIGS. 1A and 1B  and may include any of the details discussed with reference to that figure. In some examples, the image sensor package  200  includes an interstitial ball grid array (iBGA) package. In some examples, the image sensor package  200  is an automobile image sensor (e.g., an image sensor designed to be incorporated into a vehicle). However, the image sensor package  200  may be applicable to other types of applications. 
     The image sensor package  200  includes a substrate  204 , an image sensor die  202  coupled to the substrate  204 , bond wires  222  coupled to the image sensor die  202  and the substrate  204 , and a light-transmitting member  208 . The light-transmitting member  208  defines a cavity  203 , which may be a portion of the light-transmitting member  208  that has been removed via etching. The light-transmitting member  208  is coupled to the substrate  204  via a bonding material  270  such that the image sensor die  202  is disposed within the cavity  203  of the light-transmitting member  208 . The bond wires  222  are also disposed within the cavity  203  of the light-transmitting member  208 . The image sensor package  200  includes an encapsulation material  215  that is applied to the substrate  204  and the light-transmitting member  208 . 
     The substrate  204  includes a dielectric material. In some examples, the substrate  204  includes a single layer of dielectric material. In some examples, the substrate  204  includes multiple layers of dielectric material. In some examples, the substrate  204  includes a printed circuit board (PCB) substrate (e.g., a single layer of PCB or multiple layers of PCB). In some examples, the substrate  204  includes a copper clad laminate (CCL) substrate. 
     The substrate  204  includes a first surface  216  and a second surface  218  that is disposed opposite to the first surface  216 . The second surface  218  may be parallel with the first surface  216 . The distance between the first surface  216  and the second surface  218  may define the thickness of the substrate  204  in a direction A 1 . The substrate  204  includes a first edge  253  and a second edge  255 . The second edge  255  may be parallel to the first edge  253 . The first edge  253  and the second edge  255  may be perpendicular to the first surface  216  and the second surface  218 . The distance between the first edge  253  and the second edge  255  may define a length of the substrate  204  in a direction A 2 . The first surface  216  of the substrate  204  is disposed in a plane A 4 . A direction A 1  is aligned perpendicular to the plane A 4 , and a direction A 2  is perpendicular to the direction A 1 . A direction A 3  into the page (shown as a dot) is aligned parallel to the plane A 4  and is orthogonal to directions Al and A 2 . 
     The image sensor die  202  includes a first surface  224  and a second surface  226 . The second surface  226  is disposed in parallel with the first surface  224 . The distance between the first surface  224  and the second surface  226  may define the thickness of the image sensor die  202  in the direction A 1 . The image sensor die  202  includes a first edge  241  and a second edge  243 . The second edge  243  is disposed in parallel with the first edge  241 . The distance between the first edge  241  and the second edge  243  may define a length of the image sensor die  202  in the direction A 2 . 
     The image sensor die  202  includes an active region  201 . The active region  201  is defined on a portion of the first surface  224  of the image sensor die  202 . The active region  201  includes, or corresponds with, an array of pixel elements configured to convert electromagnetic radiation (e.g., light) to electrical signals. An area outside of the active region  201  may be considered a non-active region. In some examples, the image sensor die  202  includes a complementary metal-oxide semiconductor (CMOS) image sensor. The image sensor die  202  is coupled to the substrate  204 . For example, the second surface of the image sensor die  202  is coupled to the first surface  216  of the substrate  204 . In some examples, the image sensor die  202  is coupled to the substrate  204  via a bonding material (e.g., a die attach film). 
     The bond wires  222  are connected to the image sensor die  202  and the substrate  204  in order to communicatively couple the image sensor die  202  to the substrate  204 . For example, a bond wire  222  may be coupled to the first surface  224  (outside the active region  201 ) of the image sensor die  202 , and the first surface  216  of the substrate  204 . The bond wires  222  may include conductive (e.g., metal) wires such as aluminum, copper, or gold, or any combination thereof, for example. 
     The light-transmitting member  208  defines a cavity structure that permits a portion of the light-transmitting member  208  to be positioned over the image sensor die  202  and other portions of the light-transmitting member  208  to be coupled to the substrate  204 . The light-transmitting member  208  includes a substrate member  240 , a first leg member  242 , and a second leg member  244 . The substrate member  240 , the first leg member  242 , and the second leg member  244  may form a single unitary piece of material. In some examples, the substrate member  240  is a linear member that extends in the direction A 2 . The length of the substrate member  240  in the direction A 2  is greater than the length of the image sensor die  202  in the direction A 2 . The substrate member  240  may include a first surface  228  and a second surface  230 . The second surface  230  is disposed in parallel with the first surface  228 . The distance between the first surface  228  and the second surface  230  may define the thickness of the substrate member  240  in the direction A 1 . In some examples, the length of the second surface  230  in the direction A 2  is less than the length of the first surface  228  in the direction A 2 . 
     The light-transmitting member  208  includes a first edge  207  and a second edge  209 . The distance between the first edge  207  and the second edge  209  may define the length of the substrate member  240  (and/or the light-transmitting member  208 ) in the direction A 2 . Also, the first edge  207  and the second edge  209  are shared with the first leg member  242  and the second leg member  244 , respectively. The substrate member  240  includes a first end portion  221  and a second end portion  223 . The first end portion  221  may be the portion of the substrate member  240  that is disposed at one end of the substrate member  240 , and the second end portion  223  may be the portion of the substrate member  240  that is disposed at the other end of the substrate member  240  in the direction A 2 . 
     The first leg member  242  may extend from the first end portion  221  of the substrate member  240 . In some examples, the first leg member  242  extends from the substrate member  240  at a non-zero angle with respect to the substrate member  240 . In some examples, at least a portion of the first leg member  242  extends in the direction A 1 . In some examples, the first leg member  242  (in its entirety) extends in the direction A 1 . In some examples, the first leg member  242  is disposed at a perpendicular angle with respect to the substrate member  240 . In some examples, the first leg member  242  is a linear member that extends in the direction A 1 . In some examples, the first leg member  242  includes one or more curved or bent portions. In some examples, the length of the first leg member  242  in the direction A 1  is less than the length of the substrate member  240  in the direction A 2 . Also, the thickness of the first leg member  242  may be defined by the distance between the first edge  207  and a first inner edge  211  in the direction A 2 . In some examples, the thickness of the first leg member  242  (e.g., in the direction A 2 ) is less than the thickness of the substrate member  240  (e.g., in the direction A 1 ). In some examples, the thickness of the first leg member  242  (e.g., in the direction A 2 ) is equal to (or substantially equal to) the thickness of the substrate member  240  (e.g., in the direction A 1 ). 
     The second leg member  244  may extend from the second end portion  223  of the substrate member  240 . In some examples, the second leg member  244  extends from the substrate member  240  at a non-zero angle with respect to the substrate member  240 . In some examples, at least a portion of the second leg member  244  extends in the direction A 1 . In some examples, the second leg member  244  (in its entirety) extends in the direction A 1 . In some examples, the second leg member  244  is disposed at a perpendicular angle with respect to the substrate member  240 . In some examples, the second leg member  244  is a linear member that extends in the direction A 1 . In some examples, the second leg member  244  includes one or more curved or bent portions. In some examples, the length of the second leg member  244  is less than the length of the substrate member  240 . Also, the thickness of the second leg member  244  may be defined by the distance between the second edge  209  and a second inner edge  213  in the direction A 2 . In some examples, the thickness of the second leg member  244  (e.g., in the direction A 2 ) is less than the thickness of the substrate member  240  (e.g., in the direction A 1 ). In some examples, the thickness of the second leg member  244  (e.g., in the direction A 2 ) is equal to (or substantially equal to) the thickness of the substrate member  240  (e.g., in the direction A 1 ). 
     In some examples, the second leg member  244  may have the same length as the first leg member  242 . In some examples, the second leg member  244  may have the same thickness as the first leg member  242 . The space between the first leg member  242  and the second leg member  244  defines the cavity  203  of the light-transmitting member  208 . For example, the space between the first inner edge  211  and the second inner edge  213  in the direction A 2  defines the cavity  203  of the light-transmitting member  208 . The space between the second surface  230  of the substrate member  240  and a plane that is aligned with the second end of the first leg member  242  (and the second end of the second leg member  244 ) in the direction A 1  defines the cavity  203  of the light-transmitting member  208 . 
     The first leg member  242  is coupled to the substrate  204  via a bonding material  270  (e.g., an adhesive layer, die attach film, polymer-based material, an epoxy resin, etc.). For example, the first leg member  242  is coupled to the first surface  216  of the substrate  204  using the bonding material  270 . The second leg member  244  is coupled to the substrate  204  via the bonding material  270 . For example, the second leg member  244  is coupled to the first surface  216  of the substrate  204  using the bonding material  270 . In some examples, the bonding material  270  has a thickness in the direction A 1  that is substantially less than the length of the first leg member  242  and/or the second leg member  244 . In some examples, the thickness of the bonding material  270  is less than ten percent of the length of the first leg member  242  and/or the second leg member  244 . In some examples, the width of the bonding material  270  in the direction A 2  is greater than the width of the first leg member  242  and the second leg member  244  in the direction A 2 . 
     As shown in  FIG. 2 , the image sensor die  202  is disposed within the cavity  203  of the light-transmitting member  208 . Also, at least a portion of the bond wires  222  is disposed within the cavity  203  of the light-transmitting member  208 . The distance between the active region  201  of the image sensor die  202  and the second surface  230  of the substrate member  240  may define the gap height of the image sensor package  200 . 
     The image sensor package  200  includes conductive components  251  coupled to the second surface  218  of the substrate  204 . In some examples, the conductive components  251  are surface-mount packaging elements. In some examples, the conductive components  251  include conductive ball members (e.g., solder balls). The conductive components  251  are components used to connect to an external device (e.g., a ball grid array (BGA) device). However, the conductive components  251  may include other types of surface-mount packaging elements. 
     The image sensor package  200  includes an encapsulation material  215 . The encapsulation material  215  may include one or more molding materials (e.g., in a molding compound if including multiple types of materials). For example, the molding material(s) may include a metal, a plastic, a resin, an epoxy, a phenolic hardener, a silica material, a pigment, a glass, a ceramic casing, and/or so forth. 
     The encapsulation material  215  includes a portion that contacts the substrate  204 , and a portion that contacts and extends along at least a portion the light-transmitting member  208 . The encapsulation material  215  may assist with securing the bonded interface of the light-transmitting member  208  and the substrate  204 . The encapsulation material  215  contacts a portion of the first surface  216  of the substrate  204  at the end portions (or perimeter portions) of the substrate  204 . Also, the encapsulation material  215  contacts and extends along the first leg member  242  and the second leg member  244 . The encapsulation material  215  may contact and extend along at least a portion of the first edge  207  and at least a portion of the second edge  209 . In some examples, the encapsulation material  215  may extend along the entire length of the first edge  207  in the direction A 1  and may extend along the entire length of the second edge  209  in the direction A 1 . In some examples, although not shown in  FIG. 2 , the encapsulation material  215  may contact and extend along a portion of the first surface  228  of the substrate member  240 . 
     The encapsulation material  215  includes a first molding edge  232  that defines an end of the encapsulation material  215  in the direction A 2 . In some examples, the first molding edge  232  is linear. In some examples, the first molding edge  232  includes one or more angled or curved portions. In some examples, at least a portion of the first molding edge  232  (or all of the first molding edge  232 ) is aligned with the direction A 1 . In some examples, the first molding edge  232  is disposed at an angle with respect to the direction A 2 . In some examples, at least a portion of the first molding edge  232  (or all of the first molding edge  232 ) is aligned with the first edge  253  (or the second edge  255 ) of the substrate  204 . In some examples, the first molding edge  232  is disposed at a location between the first edge  253  (or the second edge  255 ) of the substrate  204  and first and second edges  207 ,  209  of the light-transmitting member  208 . 
     The encapsulation material  215  may include a second molding edge  234  defining an end of the encapsulation material  215  in the direction A 1 . The second molding edge  234  may extend from the first molding edge  232  to the first and second edges  207 ,  209  of the light-transmitting member  208 . In some examples, the second molding edge  234  is disposed at a non-zero angle with respect to the first molding edge  232 . In some examples, the second molding edge  234  is disposed at an angle that is perpendicular to the first molding edge  232 . In some examples, the second molding edge  234  is linear. In some examples, the second molding edge  234  includes one or more bent or curved portions. 
       FIG. 3  illustrates an image sensor package  300  according to an aspect. The image sensor package  300  may be an example of the image sensor package  100  of  FIGS. 1A and 1B  and/or the image sensor package  200  of  FIG. 2  and may include any of the details discussed herein. For example, the image sensor package  300  may be similar to the image sensor package  100  of  FIGS. 1A and 1B  and the image sensor package  200  of  FIG. 2  except that an encapsulation material  315  extends over a first surface  328  of a substrate member  340  of a light-transmitting member  308 . 
     The image sensor package  300  includes a substrate  304 , an image sensor die  302  coupled to the substrate  304 , bond wires  322  coupled to the image sensor die  302  and the substrate  304 , and a light-transmitting member  308 . The light-transmitting member  308  defines a cavity  303 , which may be a portion of the light-transmitting member  308  that has been removed via etching. The light-transmitting member  308  is coupled to the substrate  304  via a bonding material  370  such that the image sensor die  302  is disposed within the cavity  303  of the light-transmitting member  308 . The bond wires  322  are also disposed within the cavity  303  of the light-transmitting member  308 . The image sensor package  300  includes an encapsulation material  315  that is applied to the substrate  304  and the light-transmitting member  308 . The light-transmitting member  308  includes a substrate member  340 , a first leg member  342 , and a second leg member  344 . The substrate member  340  includes a first surface  328  and a second surface  330 . The image sensor package  300  includes a plurality of conductive components  351  coupled to the substrate  304 . 
     The image sensor package  300  includes an encapsulation material  315 . The encapsulation material  315  may include one or more molding materials (e.g., in a molding compound if including multiple types of materials). For example, the molding material(s) may include a metal, a plastic, a resin, an epoxy, a phenolic hardener, a silica material, a pigment, a glass, a ceramic casing, and/or so forth. 
     The encapsulation material  315  includes a molding portion  317  that contacts the substrate  304 . The molding portion  317  may extend along the direction A 1 . The molding portion  317  also contacts and extends along at least a portion the first leg member  342  and the second leg member  344 . The molding portion  317  may extend along a first edge  307  of the light-transmitting member  308  in the direction A 1 . The molding portion  317  may extend along a second edge  309  of the light-transmitting member  308  in the direction A 1 . 
     The encapsulation material  315  includes a first molding edge  332  that defines an end of the encapsulation material  315  in the direction A 2 . In some examples, the first molding edge  332  is linear. In some examples, the first molding edge  332  has a length in the direction A 1  that is greater than the length of the first edge  307  and the second edge  309  in the direction A 1 . In some examples, the first molding edge  332  includes one or more angled or curved portions. In some examples, at least a portion of the first molding edge  332  (or all of the first molding edge  332 ) is aligned with the direction A 1 . In some examples, the first molding edge  332  is disposed at an angle with respect to the direction A 2 . In some examples, at least a portion of the first molding edge  332  (or all of the first molding edge  332 ) is aligned with a first edge  353  (or a second edge  355 ) of the substrate  304 . In some examples, the first molding edge  332  is disposed at a location between the first edge  353  (or the second edge  355 ) of the substrate  304  and first and second edges  307 ,  309  of the light-transmitting member  308 . 
     The encapsulation material  315  includes a molding portion  319  that contacts and extends along a portion (e.g., a perimeter portion) of the first surface  328  of the substrate member  340 . The molding portion  319  may extend along the direction A 2 . 
     The encapsulation material  315  may include a second molding edge  334  defining an end of the encapsulation material  315  in the direction A 1 . The second molding edge  334  may extend from the first molding edge  332 . In some examples, the second molding edge  334  is disposed at a non-zero angle with respect to the first molding edge  332 . In some examples, the second molding edge  334  is disposed at an angle that is perpendicular to the first molding edge  332 . In some examples, the second molding edge  334  is linear. In some examples, the corners of the encapsulation material  315  (e.g., formed by the first molding edge  332  and the second molding edge  332 ) is square. In some examples, the corners of the encapsulation material  315  are rounded. In some examples, the second molding edge  334  includes one or more bent or curved portions. 
       FIG. 4  illustrates an image sensor strip assembly  490  having multiple image sensor packages. For example, the image sensor strip assembly  490  may define individual image sensor packages that share a common substrate  404 . An encapsulation material  415  is disposed between each image sensor package. The substrate  404  and the encapsulation material  415  is cut to create individual image sensor packages. 
     The image sensor strip assembly  490  may define a first image sensor package  400 - 1 , a second image sensor package  400 - 2 , and a third image sensor package  400 - 3 . The first image sensor package  400 - 1 , the second image sensor package  400 - 2 , or the third image sensor package  400 - 3  may be an example of the image sensor package  100  of  FIGS. 1A and 1B , the image sensor package  200  of  FIG. 2 , or the image sensor package  300  of  FIG. 3  and may include any of the details discussed with reference to those figures. Although  FIG. 4  depicts three image sensor packages, the image sensor strip assembly  490  may define any number of image sensor packages including two image sensor packages or more than three image sensor packages. 
     The image sensor strip assembly  490  includes a substrate  404 , a first image sensor die  402 - 1  coupled to a first portion  461  of the substrate  404 , a first light-transmitting member  408 - 1  coupled to the first portion  461  of the substrate  404 , a second image sensor die  402 - 2  coupled to a second portion  463  of the substrate  404 , a second light-transmitting member  408 - 2  coupled to the second portion  463  of the substrate  404 , a third image sensor die  402 - 3  coupled to a third portion  465  of the substrate  404 , and a third light-transmitting member  408 - 3  coupled to the third portion  465  of the substrate  404 . 
       FIG. 5  depicts a flowchart  500  having example operations for creating individual image sensor packages according to an aspect. Although the flowchart  500  is explained with the image sensor strip assembly  490  of  FIG. 4 , the flowchart  500  may be applicable to any of the embodiments discussed herein. Although the flowchart  500  of  FIG. 5  illustrates operations in sequential order, it will be appreciated that this is merely an example, and that additional or alternative operations may be included. Further, operations of  FIG. 5  and related operations may be executed in a different order than that shown, or in a parallel or overlapping fashion. 
     Operation  502  includes receiving an image sensor strip assembly  490 . Operation  504  includes cutting the portion of the encapsulation material  415  that is disposed between the second leg member of the first light-transmitting member  408 - 1  and the first leg member of the second light-transmitting member  408 - 2 . Operation  506  includes cutting the substrate  404  at a location between the first portion  461  of the substrate  404  and the second portion  463  of the substrate  404 . 
       FIG. 6  depicts a flowchart  600  having example operations for assembling an image sensor package according to an aspect. Although the flowchart  600  is explained with the image sensor package  100  of  FIG. 1 , the flowchart  600  may be applicable to any of the embodiments discussed herein. Although the flowchart  600  of  FIG. 6  illustrates operations in sequential order, it will be appreciated that this is merely an example, and that additional or alternative operations may be included. Further, operations of  FIG. 6  and related operations may be executed in a different order than that shown, or in a parallel or overlapping fashion. 
     Operation  602  includes etching a light-transmitting member  108  to create a cavity structure, where the cavity structure is defined by a substrate member  140 , a first leg member  142  extending from a first end portion  121  of the substrate member  140 , and a second leg member  144  extending from a second end portion  123  of the substrate member  140 . Operation  604  includes coupling an image sensor die  102  to a substrate  104 . Operation  606  includes connecting at least one conductor  122  to the image sensor die  102  and the substrate  104 . Operation  608  includes coupling the cavity structure to the substrate  104  using a bonding material  170  such that the first and second leg members  142 ,  144  are coupled to the substrate  104  and the image sensor die  102  is enclosed in the cavity structure. 
     It will be understood that, in the foregoing description, when an element is referred to as being connected to, electrically connected to, coupled to, or electrically coupled to another element, it may be directly connected or coupled to the other element, or one or more intervening elements may be present. In contrast, when an element is referred to as being directly connected to or directly coupled to another element, there are no intervening elements. Although the terms directly connected to, or directly coupled to may not be used throughout the detailed description, elements that are shown as being directly connected or directly coupled can be referred to as such. The claims of the application, if any, may be amended to recite exemplary relationships described in the specification or shown in the figures. Implementations of the various techniques described herein may be implemented in (e.g., included in) digital electronic circuitry, or in computer hardware, firmware, software, or in combinations of them. Portions of methods also may be performed by, and an apparatus may be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit). 
     Some implementations may be implemented using various semiconductor processing and/or packaging techniques. Some implementations may be implemented using various types of semiconductor processing techniques associated with semiconductor substrates including, but not limited to, for example, Silicon (Si), Gallium Arsenide (GaAs), Gallium Nitride (GaN), Silicon Carbide (SiC) and/or so forth. 
     While certain features of the described implementations have been illustrated as described herein, many modifications, substitutions, changes and equivalents will now occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the scope of the embodiments. It should be understood that they have been presented by way of example only, not limitation, and various changes in form and details may be made. Any portion of the apparatus and/or methods described herein may be combined in any combination, except mutually exclusive combinations. The embodiments described herein can include various combinations and/or sub-combinations of the functions, components and/or features of the different embodiments described.