Vented die and package
View Patent ↗A die that includes a substrate having a first and second major surface is disclosed. The die has at least one unfilled through via passing through the major surfaces of the substrate. The unfilled through via serves as a vent to release pressure generated during assembly.
1. An integrated circuit (IC) die comprising:
a die of the IC having first and second major surfaces, wherein the die is a singulated die of a wafer having a plurality of dies; and
at least one unfilled through via within the die, the unfilled through via passing through the major surfaces of the die, the unfilled through via allows passage of air between the major surfaces of the die to serve as a vent to release pressure generated during assembly of the die.
2. The die of claim 1 comprises a plurality of through vias, the vias include conductive materials to form via contacts.
3. The die of claim 1 comprises die contacts on the first or second major surface.
4. The die of claim 1 comprises a through silicon via type die.
5. A chip package comprising:
a carrier substrate having first and second major surfaces, wherein the second major surface comprises a bonding region; and
an IC die attached to the bonding region, wherein the die is a singulated die of a wafer having a plurality of dies, the IC die includes
first and second major surfaces, and
at least one unfilled through via within the die, the unfilled through via passing through the major surfaces of the die to allow passage of air between the major surfaces of the die to serve as a vent to release pressure generated during assembly.
6. The chip package of claim 5 wherein the die comprises a through silicon via type die.
7. The chip package of claim 5 wherein the chip package includes more than one die forming a die stack.
8. The chip package of claim 7 wherein each die of the die stack comprises at least one unfilled via.
9. The chip package of claim 7 wherein the die stack includes a plurality of through vias, the vias include conductive materials to form via contacts.
10. The chip package of claim 7 wherein the top die of the die stack comprises a flip chip.
11. The chip package of claim 5 comprises an underfill material in a cavity in between the die and the carrier.
12. The chip package of claim 11 wherein the underfill material comprises material that includes max fillers, moldable underfills, epoxy mold compound or epoxy.
13. The chip package of claim 5 wherein the carrier further includes carrier vias.
14. The chip package of claim 5 comprises a package cap to encapsulate the die.
15. A device comprising:
an integrated circuit (IC) die which is a singulated die of a wafer having a plurality of dies, wherein the IC die includes first and second major surfaces, wherein one of the major surfaces is an active surface having die contacts; and
an unfilled through via within the die, the unfilled through via passing through the major surfaces of the die to allow passage of air between the major surfaces to serve as a vent to release pressure generated during assembly.
16. The device of claim 15 wherein the die comprises a plurality of unfilled vias.
17. The device of claim 15 comprises a through silicon via type die.
18. The device of claim 16 wherein the die contacts on the active surface are coupled to a die attach region of a carrier substrate.
19. The device of claim 18 wherein the die and carrier substrate are encapsulated to form a package.
20. The device of claim 18 comprises underfill between the die attach region of the carrier substrate and active surface of the die.
21. The device of claim 15 further comprises at least one additional die coupled to the die to form a die stack.
22. The device of claim 21 wherein dies of the die stack comprise unfilled through vias.
23. The device of claim 21 wherein the die stack comprises dies of a same type.
24. The device of claim 21 wherein the die stack comprises at least one die which is of a different type than other dies of the die stack.
25. A device comprising:
a die containing an integrated circuit (IC), wherein the die is a singulated die of a wafer having a plurality of dies, the die having first and second major surfaces; and
at least one unfilled through via within the die, the unfilled through via passing through the major surfaces of the die, the unfilled through via allows passage of air between the major surfaces of the die to serve as a vent to release pressure generated during assembly of the device.
26. The device of claim 25 comprises a plurality of dies coupled to form a die stack, wherein at least one of the dies comprises at least one unfilled through via.
27. The device of claim 25 comprises a plurality of dies coupled to form a die stack, wherein the plurality of dies comprise at least one unfilled through via.
28. The device of claim 26 wherein a bottom die of the die stack is coupled to a carrier substrate of a package.
29. The device of claim 26 wherein unfilled through vias of the dies are not aligned.