Patent ID: 8146436

Claim:
A pressure transducer, comprising: a transducer body with a rim; a diaphragm having a thickness that is less than a thickness of the rim, the diaphragm having a central pillar that is coplanar with a shelf of the rim; a sensor bonded at the central pillar and the rim with the bonds being rigid and non-rotating, the sensor extending from the rim to the pillar, wherein pressure-induced deflection of the diaphragm induces double-bending in the sensor with an inner end bending down and an outer end bending up, the sensor including an accommodation structure that provides accommodation in a change of length of the sensor in response to temperature changes and a resulting length change in a body of the sensor; and one or more piezoresistors in the bending areas that produce equal and opposite resistance changes that can be detected in a Wheatstone bridge.