Patent ID: 8659099
Filing Date: 2014-02-25
Classification: B81B,B81C,G01C,G01P

Abstract:
1. A method for manufacturing a micromechanical structure, comprising: forming a first insulation layer above a substrate; forming a first micromechanical functional layer on the first insulation layer; forming a plurality of first trenches in the first micromechanical functional layer, wherein the first trenches extend as far as the first insulation layer; forming a second insulation layer on the first micromechanical functional layer, wherein the second insulation layer fills up the first trenches; forming a plurality of first etch accesses in the second insulation layer, wherein the first etch accesses locally expose the first micromechanical functional layer; and etching the first micromechanical functional layer through the etch accesses, wherein the filled first trenches and the first insulation layer act as an etch stop, wherein the first insulation layer is removed except for residual regions of the first insulation layer anchoring the first micromechanical functional layer on the substrate in order to form a movable structure in the first micromechanical functional layer.