Patent ID: 8071468
Filing Date: 2011-12-06
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, the method comprising: preparing a semiconductor substrate formed with an electrode pad on a main surface side; forming a first insulating layer from an insulating material so as to cover main surfaces of the electrode pad and the semiconductor substrate; forming a first opening in the first insulating layer such that a portion of the electrode pad is exposed; forming a first electrically conductive layer containing a first electrically conductive material so as to cover the electrode pad and the first insulating layer; forming a first resist film on the first electrically conductive layer except in a portion where a first redistribution layer is to be formed; forming the first redistribution layer from the first electrically conductive material on the first electrically conductive layer, by growing the first electrically conductive material contained in the first electrically conductive layer using an electroplating method, and removing the first resist film; forming a second insulating layer from an insulating material so as to cover the first redistribution layer and the first insulating layer; forming a second opening in the second insulating layer such that a portion of the first redistribution layer is exposed; forming a second electrically conductive layer containing a second electrically conductive material so as to cover the first redistribution layer and the second insulating layer; forming a second resist film on the second electrically conductive layer except in a portion where a second redistribution layer is to be formed; forming the second redistribution layer from the second electrically conductive material on the second electrically conductive layer, by growing the second electrically conductive material contained in the second electrically conductive layer using an electroplating method, and removing the second resist film; and performing at least one of: