A pressure-adjusting device for adjusting an output of an integrated pressure sensor in which a silicon wafer is joined onto a seat that has pressure-adjusting passages formed therein, and which has formed in the silicon wafer a signal processing circuit with an adjusting resistor for each chip, a thin...http://www.google.ca/patents/US5528214?utm_source=gb-gplus-sharePatent US5528214 - Pressure-adjusting device for adjusting output of integrated pressure sensor
