A pressure sensitive sensor is composed of a pair of upper and lower electrodes sheets 1 and 2 disposed oppositely, a spacer 3 interposed between both of the sheets 1 and 2, and adhesives 4 and 5 between these electrode sheets 1 and 2 and spacer 3. In the spacer 3, a hole 31 is formed in a position of...http://www.google.fr/patents/US6590177?utm_source=gb-gplus-shareBrevet US6590177 - Membrane switch and pressure sensitive sensor
