Patent ID: 8592255

Claim:
A method comprising the steps of: providing a handle wafer having a first side and a second side, wherein a first oxide layer covers the first side, a second oxide layer covers the second side, a first silicon layer covers the first oxide layer, and a second silicon layer covers the second oxide layer; etching through a portion of both the first silicon layer and the first oxide layer to create an exposed portion of the first side; etching through a portion of both the second silicon layer and the second oxide layer to create an exposed portion of the second side; depositing a first conductive layer on the exposed portion of the first side such that the first conductive layer contacts the handle wafer, the first oxide layer, and the first silicon layer; and depositing second conductive layer on the exposed portion of the second side such that the second conductive layer contacts the handle wafer, the second oxide layer, and the second silicon layer.