Patent ID: 6870236

Claim:
A sensor chip having first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth terminals that permit external connections to the sensor chip, the sensor chip comprising: a piezo-resistive bridge formed on a substrate, wherein the piezo-resistive bridge includes first and second input nodes and first and second output nodes; a temperature resistive bridge formed on the substrate, wherein the temperature resistive bridge includes third and fourth input nodes and third and fourth output nodes; a first resistor network formed on the substrate, wherein the first resistor network includes first, second, and third resistors having a common junction; a second resistor network formed on the substrate, wherein the second resistor network includes fourth, fifth, and sixth resistors having a common junction; a first conductive path formed on the substrate connecting the first input node to the first terminal; a second conductive path formed on the substrate connecting the second input node to the second terminal; a third conductive path including the third resistor formed on the substrate connecting the first output node to the third terminal of the sensor chip; a fourth conductive path formed on the substrate connecting the second output node to the fourth terminal of the sensor chip; a fifth conductive path formed on the substrate connecting the sixth resistor to the fifth terminal of the sensor chip; a sixth conductive path formed on the substrate connecting the fifth resistor to the sixth terminal of the sensor chip; a seventh conductive path formed on the substrate connecting the fourth resistor to the seventh terminal of the sensor chip; an eighth conductive path formed on the substrate connecting the third input node to the twelfth terminal; a ninth conductive path formed on the substrate connecting the fourth input node to the ninth terminal; a tenth conductive path formed on the substrate connecting the third output node to the eight terminal of the sensor chip; an eleventh conductive path formed on the substrate connecting the fourth output node to the fifth terminal of the sensor chip; a twelfth conductive path formed on the substrate connecting the second resistor to the eleventh terminal of the sensor chip; and, a thirteenth conductive path formed on the substrate connecting the first resistor to the tenth terminal of the sensor chip.