Patent ID: 8658529
Filing Date: 2014-02-25
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device, comprising: forming a semiconductor element over one surface of a substrate; forming a first insulating film over the semiconductor element; forming a hole penetrating the first insulating film and reaching into the substrate; forming a second insulating film over the first insulating film and on an inner surface of the hole; embedding a first conductive material in the hole; removing the first conductive material and a part of the second insulating film over the first insulating film by polishing; forming a pattern in the second insulating film and the first insulating film by etching the second insulating film and the first insulating film; embedding a second conductive material in the pattern; removing the second conductive film and the remaining second insulating film over the first insulating film by polishing to expose the first insulating film; and reducing a thickness of the substrate from the other surface to expose the first conductive material embedded in the hole.