Patent ID: 8766404

Claim:
A method for forming a capacitive device, the method comprising: forming a dielectric layer above a substrate, wherein the dielectric layer comprises a first material; wherein a preferred crystal direction for the dielectric constant of the first material is parallel to a surface of the dielectric layer; forming a first trench within the dielectric layer wherein the first trench has at least one curved portion; forming a second trench within the dielectric layer wherein the second trench has at least one curved portion, wherein the second trench is formed around a perimeter of the first trench; forming a second material within the first trench and a third material within the second trench, wherein each of the second material and the third material are conductive; wherein the first material is different from the second material and the third material; and wherein the first trench and the second trench are separated by a distance between 3-20 nm.