Patent ID: 7679191

Claim:
A semiconductor device, comprising: a semiconductor substrate; a gate oxide film formed on a first region of said substrate; a gate electrode including a first polysilicon film contacting said gate oxide film, a field oxide film formed on a second region of said semiconductor substrate; and a bonding pad section formed on said field oxide film, wherein said bonding pad section includes: a second polysilicon film provided on said field oxide film, the second polysilicon film being of a material different from the first polysilicon film; an interlayer insulating film provided on said second polysilicon film, a contact hole exposing a part of said second polysilicon film therefrom being provided in said interlayer insulating film; a barrier metal film provided on said interlayer insulating film and said polysilicon film extending through said contact hole; and a metallic electrode provided on said barrier metal film, and wherein a surface roughness of a surface of said second polysilicon film in a side of said barrier metal film is equal to or larger than 3 nm.