Patent ID: 6936514

Claim:
A method for manufacturing a semiconductor component, comprising: providing an SOI substrate comprising a first layer of semiconductor material having a first semiconductor surface, a first layer of dielectric material having a first dielectric surface, the first layer of dielectric material disposed on the first layer of semiconductor material, and a second layer of semiconductor material having a second semiconductor surface, the second layer of semiconductor material disposed on the first layer of dielectric material; forming an opening in the SOI substrate, the opening extending from the second semiconductor surface to the first semiconductor surface, wherein the opening exposes a portion of the first semiconductor surface and wherein the first semiconductor surface serves as an etch stop that substantially terminates formation of the opening; forming a first capacitor electrode from the first layer of semiconductor material; forming a capacitor dielectric layer on the portion of the first semiconductor surface exposed during the formation of the opening that substantially terminates on the first semiconductor surface; and forming a second capacitor electrode on the capacitor dielectric layer.