Patent ID: 7791169

Claim:
A semiconductor structure comprising: an active layer; a device in said active layer; a first insulator layer below said active layer; a first bulk layer below said first insulator layer; a second insulator layer below said first bulk layer; a second bulk layer below said second insulator layer; a capacitor electrically coupled to said device, said capacitor comprising: a first capacitor contact positioned laterally adjacent to said device, said first capacitor contact extending vertically through said active silicon layer and said first insulator layer to said first bulk layer; a first capacitor plate comprising a portion of said first bulk layer below said first capacitor contact; a capacitor dielectric comprising a portion of said second insulator layer below said first capacitor plate; a second capacitor plate comprising at least a portion of said second bulk layer below said capacitor dielectric; and a second capacitor contact positioned laterally adjacent to said first capacitor contact such that said first capacitor contact is between said second capacitor contact and said device, said second capacitor contact extending vertically through said active layer, said first insulator layer, said first bulk layer and said second insulator layer to said second capacitor plate; and, a deep trench isolation structure extending vertically through said active layer, said first insulator layer and said first bulk layer to said second insulator layer, isolating said first capacitor contact from said active layer and further isolating said portion of said first bulk layer comprising said first capacitor plate from other portions of said first bulk layer.