Trench capacitor layout structure and method of forming same background

摘要

A semiconductor structure includes a substrate having a trench array therein. The trench array includes a plurality of outer trenches adjacent to and extending along a periphery of the trench array and a plurality of inner trenches. Each of the plurality of outer trenches has a width greater than a width of each of the plurality of inner trenches. A capacitor material stack over the trench array.