Patent ID: 7572659

Claim:
A method of manufacturing a semiconductor sensor including a package and a sensor chip mounted thereon and for outputting an electrical signal representing an amount of force applied thereto, the method comprising: providing an adhesive film comprising a first layer and a second layer, the first layer having a elasticity modulus that is lower than that of the second layer, the second layer having a water absorption smaller than that of the first layer; providing a semiconductor wafer on which a plurality of sensor chips are formed; adhering the first layer of the adhesive film to a first surface of the semiconductor wafer; dicing the semiconductor wafer to form the sensor chip on which the adhesive film is adhered; and mounting the sensor chip on the package via the second layer of the adhesive film, wherein the dicing of the semiconductor wafer to form the sensor chip is performed on a first surface side of the semiconductor wafer on which the adhesive film is adhered, and includes cutting the surface of the second layer of the adhesive film before cutting the first layer.