Patent ID: 8426303

Claim:
A manufacturing method of a semiconductor device, comprising the steps of: (a) preparing a semiconductor substrate with a plurality of electrodes formed thereover; (b) forming a multilayer metal film over each of the electrodes; (c) forming a resist film over the multilayer metal film; (d) removing a part of a first metal film as an uppermost layer of the multilayer metal film by etching using the resist film as a mask; (e) removing a part of a second metal film located directly under the first metal film as the uppermost layer of the multilayer metal film by etching using the resist film as the mask; (f) removing another part of the first metal film as the uppermost layer by re-etching using the resist film as the mask; and (g) removing the resist film, wherein an edge of the first metal film as the uppermost layer is located inside or in the same position as an edge of the second metal film directly under the first metal film in planar view of the multilayer metal film formed over each of the electrodes.