Patent ID: 6518084
Filing Date: 2003-02-11
Classification: B81B,B81C,G01L,G01P

Abstract:
A method of producing a micromechanical structure for 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; and 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, further comprising the step of providing at least one further intermediate layer between the two semiconductor wafers, which, prior to the connection of the two semiconductor wafers, is structured in such a way that the structure formed in said at least one further intermediate layer and the recess in said first intermediate layer define a cavity with areas of variable height.