Patent ID: 7987588
Filing Date: 2011-08-02
Classification: H01L,Y10T

Abstract:
1. A method of forming an interposer, comprising: providing a connective substrate having a first surface and a second surface, the connective substrate further comprising at least a first dielectric layer, at least a first interconnection and at least a first contact pad disposed on the first surface; providing an adhesive layer to bond the first surface to a wafer carrier; forming at least a through hole on the second surface of the connective substrate; forming a conductive layer to fill the through hole and forming a through via between the first surface and the second surface; forming at least a second dielectric layer, at least a second interconnection, and at least a second contact pad on the second surface of the connective substrate, wherein the through via electrically connects the second interconnection and the second contact pad; and separating the first surface and the wafer carrier.