Patent ID: 7851875

Claim:
A micro-electromechanical system (MEMS) device, comprising: a first semiconductive material; at least one trench disposed in the first semiconductive material, the at least one trench comprising a sidewall; a first insulating material layer disposed over an upper portion of the sidewall of the at least one trench in the first semiconductive material and over a portion of a top surface of the first semiconductive material proximate the sidewall, wherein the first insulating material layer is a solid material; and a second semiconductive material or a conductive material disposed within the at least one trench and at least over the first insulating material layer disposed over the portion of the top surface of the first semiconductive material proximate the sidewall; and a second insulating material layer disposed beneath the first insulating material layer, the second insulating material layer being disposed over the portion of the top surface of the first semiconductive material proximate the sidewall.