Patent ID: 8664075

Claim:
A method of forming a structure including a capacitor structure, said method comprising: forming a trench in a substrate; forming a first conductive layer contiguously contacting a bottom surface and sidewalls of said trench; forming a first node dielectric layer contiguously contacting sidewalls of said first conductive layer; forming a second conductive layer contiguously contacting sidewalls of said first node dielectric layer; forming a second node dielectric layer contiguously contacting sidewalls of said second conductive layer; forming a third conductive layer contiguously contacting sidewalls of said second node dielectric layer; and patterning a stack of said first conductive layer, said first node dielectric layer, said second conductive layer, said second node dielectric layer, and said third conductive layer, wherein remaining portions of said first conductive layer, said first node dielectric layer, said second conductive layer, said second node dielectric layer, and said third conductive layer collectively form a capacitor structure, wherein sidewalls of said first conductive layer, said first node dielectric layer, said second conductive layer, said second node dielectric layer, and said third conductive layer are vertically coincident with one another after said patterning of said stack.