Methods of manufacturing imaging device packages
Methods of manufacturing an imaging device package are provided. In accordance with an embodiment a sensor die may be coupled to bond pads on a transparent substrate. Electrically conductive paths comprising bond wires are formed through the bond pads from the sensor die to an outer surface of the imaging device package.
1. A method of manufacturing an imaging device package comprising:
providing a transparent substrate having bond pads;
coupling a sensor die to the bond pads, wherein an active side of the sensor die faces the transparent substrate; and
forming electrically conductive paths between the bond pads and an external package, wherein the electrically conductive paths comprise bond wires formed through an encapsulant such that a second end of each respective bond wire is exposed on an outer surface of the encapsulant.
2. The method of claim 1 , wherein the electrically conductive paths comprise interconnect elements.
3. The method of claim 2 , wherein the interconnect elements comprise balls, bumps, studs, pads, or a combination thereof.
4. The method of claim 3 , comprising arranging the interconnect elements around an outer periphery of the sensor die.
5. The method of claim 3 , comprising arranging the interconnect elements at least partially above the sensor die.
6. The method of claim 1 , comprising coupling the bond wires to a plurality of conductive elements disposed on an inactive side of the sensor die, wherein the conductive elements are coupled to interconnect elements.
7. The method of claim 6 , comprising disposing an insulating substrate on the inactive side of the sensor die.
8. A method of manufacturing an imaging device package comprising:
attaching a sensor die to a substrate, such that the sensor die is electrically coupled to a plurality of bond pads on the substrate;
attaching a first end of a respective bond wire to each of the plurality of bond pads; and
forming an encapsulant around the sensor die on the substrate such that a second end of each respective bond wire is exposed on an outer surface of the encapsulant.
9. The method of claim 8 , comprising coupling a respective conductive element to the second end of each bond wire at the outer surface of the encapsulant.
10. The method of claim 9 , wherein coupling the respective conductive element comprises coupling a respective conductive ball to the second end of each bond wire.
11. The method of claim 9 , wherein coupling the respective conductive element comprises coupling a respective land pad to the second end of each bond wire.
12. The method of claim 8 , wherein forming the encapsulant comprises forming the encapsulant such that the second end of each respective bond wire is exposed along a side of the encapsulant, thereby forming a side castellated imaging package.
13. The method of claim 8 , wherein forming the encapsulant such that the second end of each respective bond wire is exposed comprises:
dispensing an encapsulant around the sensor die and around each respective bond wire; and grinding or planarizing a surface of the encapsulant to expose the second end of each respective bond wire.
14. A method of manufacturing an imaging device package comprising:
electrically coupling a sensor die to a transparent substrate via a plurality of conductive elements;
forming a respective electrically conductive path through each of the plurality of conductive elements to an outer surface of the imaging device package,
wherein forming the respective electrically conductive path comprises forming the respective electrically conductive path through each of the plurality of conductive elements and through each of a plurality of bond wires, and wherein the forming the respective electrically conductive path through each of the plurality of bond wires comprises coupling a first end of each of the plurality of bond wires to a respective bond pad on the transparent substrate and positioning a second end of each of the plurality of bond wires to be exposed at the outer surface of the imaging device package.
15. The method of claim 14 , wherein electrically coupling the sensor die to the transparent substrate comprises coupling the sensor die to the transparent substrate such that an active side of the sensor die faces the transparent substrate.
16. The method of claim 14 , wherein electrically coupling the sensor die to the transparent substrate comprises coupling the sensor die to the transparent substrate via a plurality of conductive balls disposed on an active surface of the sensor die.
17. The method of claim 14 , wherein forming the respective electrically conductive path comprises mechanically coupling each of the plurality of conductive elements to a respective bond pad on the transparent substrate, and mechanically coupling each of the plurality of bond wires to a respective bond pad on the transparent substrate, such that each respective bond pad has one of the conductive elements and one of the bond wires mechanically coupled thereto.
18. The method of claim 14 , comprising coupling a respective conductive element to the second end of each of the plurality of bond wires at the outer surface of the imaging device package.
19. The method of claim 14 , wherein forming each respective electrically conductive path comprises forming an electrically conductive path from an active side of the sensor die to the substrate, from the substrate to an inactive side of the sensor die, and from the inactive side of the sensor die to the outer surface of the imaging device package.
20. The method of claim 14 , wherein forming each respective electrically conductive path comprises forming an electrically conductive path from an active side of the sensor die to the substrate and from the substrate to the outer surface of the imaging device package, wherein the outer surface is a side of the imaging device package formed in a direction perpendicular to the active side of the sensor die.