Patent ID: 7911044
Filing Date: 2011-03-22
Classification: H01L

Abstract:
1. A RF module package structure comprising: a substrate with a die receiving through hole and contact conductive pads and metal through holes, wherein said substrate is made of organic epoxy, FR5, FR4 BT, silicon, PCB (print circuit board) material, glass or ceramic type material, and the CTE of said substrate is substantially the same with that of a PCB; a conductive slice attached on a lower surface of said substrate; multiple dice disposed within said die receiving through hole and on said conductive slice, wherein an elastic core paste is filled the space (gap) between a die edge and a sidewall of said through holes of said substrate, and, a top surface of said dice, said substrate and said elastic core paste are at the same plane whereby CTE mismatching between said substrate and said die is reduced during panel form process; multiple elastic dielectric stacking structure stacked on said multiple dice and said substrate wherein a bottom of said dielectric stacking structure is directly disposed on a top surface of said substrate and an active surface of said dice whereby the Z direction stress is absorbed; multiple re-distribution layers (RDL) formed within said multiple elastic dielectric stacking structure and coupled to said dice; a top conductive layer formed over said multiple dielectric stacking structure; and multiple heat sinks disposed on said top conductive layer.