Patent ID: 8648432

Claim:
A fully embedded micromechanical device manufactured from a silicon on insulator substrate (SOI-substrate) comprising a silicon substrate layer, a buried silicon oxide layer and a monocrystalline silicon layer, wherein the micromechanical device comprises: a moveable component having a laterally extending upper and lower surface and vertical side surfaces and wherein a. the upper surface is adjacent to an upper gap laterally extending over at least a part of the upper surface and resulting from the removal of a shallow trench insulation material, b. the lower surface is adjacent to a lower gap laterally extending over at least a part of the lower surface and resulting from the removal of the buried silicon oxide layer, c. the vertical side surfaces of the moveable component are adjacent to side gaps surrounding at least a part of the vertical side surfaces of the moveable component and resulting from the removal of a deep trench insulation material, and a barrier surrounding at least the movable component, wherein the barrier vertically extends through at least the buried silicon oxide layer down to the silicon substrate layer.