Integrierbarer, kapazitiver Drucksensor und Verfahren zum Herstellen desselben

A process for the manufacture of an integratable, capacitive pressure sensor comprises the following process steps starting with a semiconductor substrate: Applying a spacer layer, depositing a polycrystalline semiconductor layer, doping the polycrystalline semiconductor layer and removing the spacer layer by etching. In order to design the pressure sensor compatible for CMOS circuits, a semiconductor area according to the invention is isolated with respect to the semiconductor substrate and an insulator layer is applied to the semiconductor substrate or to the insulated semiconductor area, whereby these process steps are performed prior to applying the spacer layer.