Patent ID: 7993972
Filing Date: 2011-08-09
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising: providing a wafer; forming a first insulation layer over a top surface of the wafer; forming a first interconnect structure over the first insulation layer with temperatures in excess of 200° C.; forming a photoresist layer having an opening over the first interconnect structure; forming a metal pillar in the opening in the photoresist layer and in electrical contact with the first interconnect structure; mounting a semiconductor die to the first interconnect structure with an active surface of the semiconductor die facing the first interconnect structure; forming encapsulant over the semiconductor die; forming a second interconnect structure with temperatures below 200° C., the second interconnect structure including a first conductive layer formed over the encapsulant in electrical contact with the metal pillar and a second insulation layer formed over the first conductive layer; and removing a portion of a backside of the wafer opposite the top surface of the wafer.