Patent ID: 7339265

Claim:
A capacitance type semiconductor sensor device having a stack structure in which a sensor chip having a dynamic quantity detector is mounted on a circuit chip having a signal processing circuit through adhesive film, the sensor chip and the circuit chip being electrically connected to each other by plural bonding wires, characterized in that the adhesive film has an elasticity of 200 MPa or less, and the plural bonding wires are arranged dispersively at plural side portions or corner portions of the sensor chip, wherein the number of the plural bonding wires for connecting the sensor chip and the circuit chip is equal to four, and the bonding wires are arranged so that each of the bonding wires is located at each corner portion of the sensor chip, wherein the circuit chip includes four or more circuit chip electrode terminals disposed outside of a chip-mount area in which the sensor chip is mounted on the circuit chip, the four or more circuit chip electrode terminals for electrically connecting the circuit chip to the sensor chip, wherein the four or more circuit chip electrode terminals include two output terminals for outputting pulse-shaped carrier waves having opposite phases, one input terminal for receiving an acceleration signal, and a ground terminal, wherein the circuit chip includes a conversion circuit for converting the acceleration signal to a voltage signal.