Patent ID: 7273763

Claim:
A method of producing a micro-electromechanical element comprising the following steps: a) structuring a first intermediate layer, which is applied to a first main surface of a first semiconductor wafer, so as to produce a recess; b) connecting the first semiconductor wafer via the first-intermediate layer to a second semiconductor wafer in such a way that a hermetically sealed cavity is defined by the recess; c) thinning one of the wafers from a surface facing away from said first intermediate layer so as to produce a diaphragm-like structure on top of the cavity; d) producing electronic components in said thinned semiconductor wafer; wherein in step a) the intermediate layer is structured in such a way that, when the two wafers have been connected, at least two hermetically sealed cavities are defined, which are interconnected by a channel, a respective diaphragm-like structure being arranged on top of each of said cavities after step c), and wherein the method additionally comprises the step e) of opening a defined opening through the diaphragm-like structure on top of one of the cavities.