Patent ID: 8012798
Filing Date: 2011-09-06
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device, comprising: preparing a substrate including a plurality of chips, each of the chips comprising an interconnect structure therein, and the substrate including a first surface and a second surface opposite to the first surface; forming a first opening from the first surface of the substrate toward a thickness direction thereof, so as to expose the interconnect structure; forming a seed film on the first surface of the substrate; forming a first projecting electrode, so that the first projecting electrode is buried inside the first opening in which the seed film is provided and protrudes outward from the first surface of the substrate; forming a first metal film on an outside top surface of the first projecting electrode; attaching a first supporting substrate to the first surface of the substrate with a first adhesion layer interposed therebetween; forming a second opening from the second surface of the substrate toward the thickness direction thereof, so as to expose the interconnect structure; forming a second projecting electrode, so that the second projecting electrode is buried inside the second opening and protrudes outward from the second surface of the substrate; forming a second metal film on an outside top surface of the second projecting electrode; attaching a second supporting substrate to the second surface of the substrate with a second adhesion layer interposed therebetween; removing the first supporting substrate and the first adhesion layer; removing an exposed part of the seed film provided on the first surface; removing the second supporting substrate and the second adhesion layer; and cutting the substrate into the plurality of chips, each of the chips being provided with a through-hole electrode including the first projecting electrode, the seed film inside the first opening, the interconnect structure, and the second projecting electrode.