Stacked semiconductor package and manufacturing method thereof
View Patent ↗A stacked semiconductor package and a manufacturing method thereof. For example and without limitation, various aspects of this disclosure provide a semiconductor package in which an upper interposer and/or package are electrically and mechanically coupled to a lower package utilizing an adhesive member comprising conductive particles.
1. A stacked semiconductor package, comprising:
a lower semiconductor package, comprising:
a substrate;
a semiconductor chip attached to a center region of an upper surface of the substrate;
a plurality of terminals attached to and extending upward from a peripheral region of the upper surface of the substrate around the center region; and
a molding compound covering the upper surface of the substrate, at least a portion of side surfaces of the semiconductor chip, and at least a portion of a side surface of each of the terminals,
wherein at least an upper surface of each of the terminals is exposed from the molding compound; and
an interposer comprising a plurality of contacts on a lower surface; and
an adhesive member bonding the lower surface of the interposer to an upper surface of the lower semiconductor package, wherein the adhesive member comprises conductive particles that conductively couple each of the terminals of the lower semiconductor package and a respective one of the interposer contacts, and wherein the adhesive member directly contacts side surfaces of the interposer contacts.
2. The stacked semiconductor package of claim 1 , wherein the adhesive member is attached to an entire lower surface of the interposer.
3. The stacked semiconductor package of claim 2 , wherein the adhesive member is attached to an entire upper surface of the lower semiconductor package.
4. The stacked semiconductor package of claim 1 , wherein the interposer comprises a substrate of an upper semiconductor package.
5. The stacked semiconductor package of claim 1 , wherein the conductive particles of the adhesive member have a largest dimension that is less than one third of a thickness of the adhesive member.
6. The stacked semiconductor package of claim 1 , wherein the adhesive member directly contacts a substrate of the interposer.
7. The stacked semiconductor package of claim 1 , wherein between adjacent ones of the terminals, the adhesive member comprises conductive particles but does not electrically couple said adjacent ones of the terminals to each other.
8. The stacked semiconductor package of claim 1 , wherein a top surface of the semiconductor chip is exposed from the molding compound, and the adhesive member bonds a lower surface of the interposer to the top surface of the semiconductor chip.
9. A stacked semiconductor package, comprising:
a lower semiconductor package, comprising:
a substrate;
a semiconductor chip attached to a center region of an upper surface of the substrate;
a plurality of terminals attached to and extending upward from a peripheral portion of the upper surface of the substrate around the center region; and
a molding compound covering the upper surface of the substrate, at least a portion of side surfaces of the semiconductor chip, and at least a portion of a side surface of each of the terminals,
wherein at least an upper surface of each of the terminals is exposed from the molding compound;
an interposer comprising a plurality of contacts on a lower surface; and
an adhesive member bonding the lower surface of the interposer to an upper surface of the lower semiconductor package, wherein the adhesive member comprises conductive particles that conductively couple each of the terminals of the lower semiconductor package and a respective one of the interposer contacts,
wherein the adhesive member has a vertical thickness directly below the contacts of the interposer that is greater than a vertical thickness of the adhesive member directly below the interposer between the contacts of the interposer.
10. The stacked semiconductor package of claim 9 , wherein the adhesive member is attached to an entire lower surface of the interposer.
11. The stacked semiconductor package of claim 10 , wherein the adhesive member is attached to an entire upper surface of the lower semiconductor package.
12. The stacked semiconductor package of claim 9 , wherein the interposer comprises a substrate of an upper semiconductor package.
13. The stacked semiconductor package of claim 9 , wherein the conductive particles of the adhesive member have a largest dimension that is less than one third of a thickness of the adhesive member.
14. The stacked semiconductor package of claim 9 , wherein the adhesive member directly contacts a substrate of the interposer.
15. The stacked semiconductor package of claim 9 , wherein between adjacent ones of the terminals, the adhesive member comprises conductive particles but does not electrically couple said adjacent ones of the terminals to each other.
16. The stacked semiconductor package of claim 9 , wherein a top surface of the semiconductor chip is exposed from the molding compound, and the adhesive member bonds a lower surface of the interposer to the top surface of the semiconductor chip.
17. A stacked semiconductor package, comprising:
a lower semiconductor package, comprising an interconnection structure exposed from an encapsulating material on an upper surface;
an interposer comprising an interconnection structure on a lower surface; and
an adhesive member bonding the lower surface of the interposer to an upper surface of the lower semiconductor package, wherein the adhesive member comprises conductive particles that conductively couple the interconnection structure of the lower semiconductor package and the interconnection structure of the interposer,
wherein the conductive particles of the adhesive member have a largest dimension that is less than one tenth of a pitch between the interposer interconnection structure and an adjacent interposer interconnection structure.
18. The stacked semiconductor package of claim 17 , wherein the adhesive member is attached to the entire lower surface of the interposer.
19. The stacked semiconductor package of claim 17 , wherein the adhesive member comprises an adhesive film comprising the conductive particles.
20. The stacked semiconductor package of claim 17 , wherein between the interconnection structure of the lower semiconductor package and a second interconnection structure of the lower semiconductor package adjacent to the interconnection structure, the adhesive member comprises conductive particles but does not electrically couple said interconnection structure and said second interconnection structure.