Patent ID: 9704805
Date: 2017-07-11
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a semiconductor substrate; a first wire over the semiconductor substrate; an insulating film formed over the semiconductor substrate and the first wire, and having an opening so as to expose an upper surface part of the first wire; a second wire formed over the insulating film so as to be connected with the first wire in the opening; and a bonding wire connected with the second wire, wherein the second wire is a stack of a Cu film, a Ni film and a Pd film in order from the first wire, wherein the bonding wire is directly connected with the Pd film and a connection part of the bonding wire and the Pd film is outside of the opening in a plan view and overlaps the insulating film, wherein the Pd film has a film thickness smaller than that of the Ni film, and wherein the bonding wire includes Cu.