Patent ID: 8558296

Claim:
An integrated circuit formed at a semiconductor surface of a body, including an electrically programmable capacitor structure for an analog semiconductor integrated circuit, the integrated circuit comprising: a first polysilicon electrode; silicide-block silicon dioxide disposed over the first polysilicon electrode, the silicide-block silicon dioxide being free of nitrogen; a capacitor dielectric film disposed over the silicide-block silicon dioxide over the first polysilicon electrode, the capacitor dielectric film comprising nitrogen; a first conductive plate, comprising a metal and disposed over a first portion of the first polysilicon electrode with the capacitor dielectric film and the silicide-block silicon dioxide therebetween; a second polysilicon electrode, having at least a portion clad with a metal silicide, the second polysilicon electrode formed from the same polysilicon layer as the first polysilicon electrode; and a second conductive plate, comprising a metal and disposed over the clad portion of the second polysilicon electrode with the capacitor dielectric film therebetween.