| 摘要 |
A dicing sheet base film (2) includes a resin layer (A). The resin layer (A) contains: a norbornene-based resin (a1) that is a thermoplastic resin containing a structural unit derived from a norbornene-based compound; a styrene-based elastomer (a2); and an olefin-based thermoplastic resin (a3) other than the norbornene-based resin (a1) and other than the styrene-based elastomer (a2). The dicing sheet base film (2) suppresses the occurrence of dicing debris, in particular filament-like dicing debris, during the dicing of a cut object without imparting physical energy such as electron rays and ³ rays, and has sufficient expandability in the expanding process. |
