Patent ID: 7736999
Filing Date: 2010-06-15
Classification: B28D,H01L

Abstract:
1. A manufacturing method of a semiconductor device, comprising: sequentially laminating an adhesive layer of which thickness is over 25 μm and a dicing tape on a rear surface of a semiconductor wafer having plural element regions, wherein the adhesive layer has a room temperature modulus of elasticity before curing in a range of not less than 100 MPa nor more than 3000 MPa; cutting the semiconductor wafer in accordance with the plural element regions together with a part of the adhesive layer having the room temperature modulus of elasticity in the range of not less than 100 MPa nor more than 3000 MPa by using a first blade of which cutting depth reaches the adhesive layer; cutting the adhesive layer having the room temperature modulus of elasticity in the range of not less than 100 MPa nor more than 3000 MPa together with a part of the dicing tape by using a second blade of which cutting depth reaches the dicing tape and having a narrower width than the first blade; picking up a semiconductor element sectioned by cutting the semiconductor wafer with the adhesive layer, from the dicing tape; and adhering the picked up semiconductor element on a device constructing base via the adhesive layer laminated on a rear surface of the semiconductor element, wherein the first and second blades advance on the same trace.