Patent ID: 6159762
Filing Date: 2000-12-12
Classification: G01L

Abstract:
A method for manufacturing a micromechanical sensor, comprising the following steps:a) applying a second layer onto a first layer provided for manufacture of a cavity;b) using a mask, producing recesses having a size dimensioned for following steps c) and d) in the second layer in a region of a projection of the cavity to be manufactured that is perpendicular relative to layer planes of the first and second layers;c) upon employment of the recesses, etching a cavity out in the first layer;d) applying a closure layer onto the second layer such that the recesses are closed without filling up the cavity;e) re-opening at least one of the recesses in the second layer at least to such an extent that the cavity is opened; andf) re-closing the at least one recess with a material that differs from a material of the closure layer so that the cavity is closed.