Patent ID: 9006033
Filing Date: 2015-04-14
Classification: H01L

Abstract:
1. A method of forming a package on package structure with an interposer frame, the method comprising: bonding a semiconductor die and an interposer frame to a substrate, wherein the interposer frame surrounds the semiconductor die, wherein the semiconductor die is disposed in an opening of the interposer frame, and wherein the interposer frame has a plurality of TSHs, wherein the plurality of TSHs is aligned with a plurality of bumps on the substrate; positioning a packaged die over the semiconductor die and the interposer frame, wherein the packaged die has a plurality of bumps aligned with the plurality of TSHs of the interposer; and performing a reflow process to allow solder of the plurality of bumps of the substrate and the solder of the plurality of bumps of the packaged die to fill the plurality of TSHs.