Patent ID: 8309445

Claim:
A method of forming a field effect transistor (FET) capacitor comprising: forming an initial workpiece including a substrate, an insulator and a silicon layer on top of the substrate, the silicon layer having an upper surface; dividing the workpiece into at least one active region with one or more isolation regions; forming a gate stack on the upper surface within an active region; orienting the workpiece relative to a dopant material source in a first orientation such that a first shadow region exists on a first side of the gate stack; implanting a first dopant material at the first orientation to form a first extension region in the active region on only a first side of the gate stack; orienting the workpiece relative to a dopant material source in a second orientation such that a second shadow region exists on a second side of the gate stack; and implanting a second dopant material at the second orientation to form a second extension region in the active region on only a second side of the gate stack.