Patent ID: 7327004
Filing Date: 2008-02-05
Classification: B81C,G01C,G01P,H01L

Abstract:
1. A sensor device comprising: a sensor chip having a movable portion on one surface; a circuit chip laminated with the sensor chip to be opposite to the movable portion of the sensor chip; an adhesive member having an electric insulating property, the adhesive member being arranged between the sensor chip and the circuit chip for bonding both the sensor chip and the circuit chip, and the adhesive member being separated from the movable portion of the sensor chip and being constructed with an adhesive film, the adhesive film having a first portion opposite to the movable portion and a second portion positioned outside from the first portion, and the first portion of the adhesive film being made thinner than the second portion of the adhesive film to form a concave portion recessed from a surface on a side of the movable portion; and a bump located between the sensor chip and the circuit chip, wherein the sensor chip and the circuit chip are electrically connected through the bump, and the movable portion of the sensor chip is separated from the circuit chip by a space using the bump.