Patent ID: 7816177
Filing Date: 2010-10-19
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising the steps of: forming a first pad portion made of conductive material at a specific position around a semiconductor element mount region on one surface of a conductive base material; mounting a semiconductor element on the semiconductor element mount region; forming an insulating base material on the conductive base material to bury the semiconductor element therein; forming a first via hole in the insulating base material so as to reach the first pad portion; filling the first via hole with a conductor; forming a second via hole at a specific position in the insulating base material so as to reach an electrode terminal of the semiconductor element; forming a wiring layer having a required pattern shape on the insulating base material so as to fill the second via hole and to be connected to the conductor filled in the first via hole; forming a protective film which covers the wiring layer and the insulating base material in such a way that a second pad portion is exposed, the second pad portion being delimited in a portion of the wiring layer which corresponds to the conductor; and removing the conductive base material.