Patent ID: 7141300
Filing Date: 2006-11-28
Classification: C08L,C09J,H01L,Y10T

Abstract:
1. A dicing sheet configured to be attached to a material-to-be-cut for dicing, comprising a base film provided at least one surface thereof with an adhesive layer, said base film having a thickness of 10 to 300 μm and comprising (i) an olefinic thermoplastic elastomer comprising propylene and ethylene and/or α-olefin including 4 to 8 carbon atoms as polymerization components, said olefinic thermoplastic elastomer has a peak melting temperature of 120 to 170° C., and (ii) a crystal-nucleating agent having a crystal-nucleating action on polypropylene, said base film, wherein the content of the crystal-nucleating agent is 0.0001 to 1% by weight relative to the whole of the base film, said adhesive layer having a thickness of 1 to 200 μm and having a surface removable from the material after being diced.