Patent ID: 9698103
Date: 2017-07-04
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: an electrically conductive layer having a conductive property; a first insulating film located on the conductive layer and comprising a contact hole reaching the conductive layer, at least a surface part of the first insulating film being a boron phosphorous silicon glass (BPSG) film; a barrier metal covering an inner surface of the contact hole; a contact electrode located in the contact hole and on the barrier metal; a surface electrode located on the BPSG film and the contact electrode; a semiconductor substrate; and a third insulating film located on the semiconductor substrate, wherein the barrier metal is not interposed between the BPSG film and the surface electrode so that the surface electrode is directly in contact with the BPSG film, at least a part of the surface electrode is a bonding pad, and the conductive layer is located on the third insulating film so that the conductive layer is directly in contact with the third insulating film and insulated from the semiconductor substrate by the third insulating film.