Patent ID: 8156804
Filing Date: 2012-04-17
Classification: B81B,B81C,G01P,H01L

Abstract:
1. A capacitive semiconductor sensor, comprising: a sensor chip including a dynamic quantity detector, which has a detection axis in one direction; a circuit chip including a signal processing circuit; a plurality of bumps, through which the sensor chip and the circuit chip are coupled by flip-chip bonding; and a plurality of dummy bumps, through which the sensor chip and the circuit chip are mechanically coupled, wherein the plurality of bumps and the plurality of dummy bumps are arranged in such a manner that when an approximately center portion of the dynamic quantity detector of the sensor chip is set to be an origin and the detection axis is set to be a Y-axis and a direction approximately perpendicular to the Y-axis is set to be an X-axis, a total amount of distances from the origin to the plurality of bumps and the plurality of dummy bumps in a direction of the X-axis is larger than a total amount of distances from the origin to the plurality of bumps and the plurality of dummy bumps in a direction of the Y-axis.