Patent ID: 7560821
Filing Date: 2009-07-14
Classification: H01L

Abstract:
1. An area mount type semiconductor device comprising a substrate, and a semiconductor element mounted on a surface of the substrate via a die bonding resin composition, and substantially having only the surface of the substrate mounting the semiconductor element encapsulated with the use of an encapsulating resin composition, wherein an elastic modulus of a cured product of the die bonding resin composition at 260° C. is 1 MPa to 120 MPa, an elastic modulus of a cured product of the encapsulating resin composition at 260° C. is 400 MPa to 1,200 MPa, and a thermal expansion coefficient of the cured product of the encapsulating resin composition at 260° C. is 20 ppm to 50 ppm.