Patent ID: 8465615
Filing Date: 2013-06-18
Classification: C09J,H01L,Y10T

Abstract:
1. A method for producing a semiconductor wafer having a laminate, comprising: peeling off a release substrate from an adhesive sheet comprising the release substrate, a substrate film, and a tacky-adhesive layer placed between the release substrate and the substrate film, to give the laminate including the substrate film and the tacky-adhesive layer; and sticking the tacky-adhesive layer of the laminate to a semiconductor wafer, wherein: an annular incision has been formed in the release substrate of the adhesive sheet from the tacky-adhesive layer side of the release substrate, the release substrate has a thickness of 30-50 μm, the tacky-adhesive layer covers a whole inner surface of the incision in the release substrate, the incision has a depth of more than zero, and less than 25 μm, and a lamination of the laminate to the semiconductor wafer is continuously performed in an automatic step.