Patent ID: 8652925

Claim:
A method comprising: depositing an insulator layer on a silicon on insulator (SOI) structure; ion implanting through the insulator layer, the ion implanting forming an implanted region under the insulator layer; after the ion implanting, bonding the insulator layer deposited on the SOI structure to a doped poly layer formed on a substrate; splitting the SOI structure; simultaneously forming a plurality of deep trenches and one or more isolation trenches surrounding a group or array of the plurality of deep trenches through the SOI structure and the doped poly layer, to an underlying insulator layer formed under the doped poly layer; lining the plurality of deep trenches and one or more isolation trenches with an insulator material; and filling the plurality of deep trenches and one or more isolation trenches with a conductive material on the insulator material, wherein the deep trenches form deep trench capacitors and the one or more isolation trenches form one or more isolation plates that isolate at least one group or array of the deep trench capacitors from another group or array of the deep trench capacitors.