Patent ID: 7886608
Filing Date: 2011-02-15
Classification: A61B,A61N

Abstract:
1. A pressure sensor comprising: an insulative sidewall including a pressure sensitive diaphragm portion; a gap capacitor contained by the insulative sidewall, the gap capacitor including a first electrode plate and a second electrode plate, the first electrode plate being attached to an interior surface of the diaphragm portion of the insulative sidewall and the second electrode plate being spaced apart from the first electrode plate; an integrated circuit contained by the insulative sidewall, the integrated circuit being coupled to the second electrode plate; a supply contact and a ground contact, each contact being independently coupled, through the insulative sidewall, to the integrated circuit; and a conductive layer extending over an exterior surface of the diaphragm portion of the insulative sidewall, the conductive layer being coupled to the ground contact; and a conductive sidewall extending about the pressure sensor, the conductive sidewall including an aperture extending therethrough and being approximately aligned with the pressure sensitive diaphragm portion of the insulative sidewall of the pressure sensor.