Patent ID: 9620484
Date: 2017-04-11
CPC Classifications: H01L

Claim:
1. A package-on-package device comprising: a lower package comprising a first package substrate, a first semiconductor chip on the first package substrate, and a first molding compound layer on the first package substrate; an upper package comprising a second package substrate and a second semiconductor chip on the second package substrate; an interposer between the lower package and the upper package, the interposer including a plurality of openings; a plurality of first via-connecting terminals connecting the lower package to the interposer, the first via-connecting terminals spaced apart from each other with a first distance; a plurality of second via-connecting terminals connecting the interposer to the upper package, the second via-connecting terminals spaced apart from each other with a second distance, the second distance being different from the first distance; and a heat transfer member comprising a first portion, a second portion and a third portion, the first portion being disposed between the lower package and the interposer, the second portion being disposed between the upper package and the interposer, and the third portion being in the plurality of openings and connecting the first portion and the second portion, wherein the interposer includes a ground layer, and the heat transfer member is connected to the ground layer of the interposer.