Patent ID: 7992443
Filing Date: 2011-08-09
Classification: B81B,G01L

Abstract:
1. A micromechanical sensor element for capacitive differential pressure sensing, comprising: at least one deflectable diaphragm structure, which is provided with at least one deflectable electrode, the diaphragm structure including two mutually parallel configured diaphragms that are joined rigidly to one another via at least one connecting crosspiece, so that each application of force to one of the two diaphragms is directly transmitted to the respective other diaphragm, a first of the two diaphragms being able to be pressurized by a first measuring pressure emanating from a front side of the sensor element, a second of the two diaphragms being able to be pressurized by a second measuring pressure emanating from a rear side of the sensor element; and at least one fixed support structure for at least one fixed counter-electrode, which is situated opposite the deflectable electrode, the fixed counter-electrode being situated in a sealed hollow space between the two diaphragms of the diaphragm structure.