Patent ID: 8722505

Claim:
A method of forming a capacitor comprising: forming a first opening in a semiconductor wafer; forming a first non-conductive layer in the first opening to touch the semiconductor wafer, the first non-conductive layer having a substantially uniform thickness and forming a second opening; depositing a plurality of first atoms on the first non-conductive layer to form a first metal structure in the second opening that touches the first non-conductive layer, the first atoms passing through a first shadow mask, the first shadow mask being spaced apart from a top surface of the first non-conductive layer, the first metal structure having a substantially uniform thickness and forming a third opening; forming a second non-conductive layer in the third opening to touch the first non-conductive layer and the first metal structure, the second non-conductive layer having a substantially uniform thickness and forming a fourth opening; and depositing a plurality of second atoms on the second non-conductive layer to form a second metal structure in the fourth opening to touch the second non-conductive layer, the second atoms passing through a second shadow mask, the second shadow mask being spaced apart from a top surface of the second non-conductive layer, the second metal structure having a substantially uniform thickness.