Patent ID: 7777262
Filing Date: 2010-08-17
Classification: C23C,H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate having semiconductor elements formed thereon; an interlayer insulating film formed over the semiconductor substrate and made of insulating material having a moisture content of 5×10 a first hydrogen diffusion barrier film formed over the interlayer insulating film and made of material having a higher hydrogen diffusion barrier function than a hydrogen diffusion barrier function of material of the interlayer insulating film; a second hydrogen diffusion barrier film disposed between the semiconductor substrate and the interlayer insulating film, and made of material having a higher hydrogen diffusion barrier function than a hydrogen diffusion barrier function of material of the interlayer insulating film; a via hole penetrating the first hydrogen diffusion barrier film, the interlayer insulating film and the second hydrogen barrier film; and a plug filling the via hole, further comprising a ferroelectric capacitor formed over the semiconductor substrate and covered with the interlayer insulating film, wherein the second hydrogen diffusion barrier film covers an upper face and a side face of the ferroelectric capacitor.