| 摘要 |
A base film 2 for a dicing sheet is provided which can suppress dicing debris from generating during the dicing of a cut object without imparting physical energy, such as electron beam or ³ ray. The base film 2 for a dicing sheet comprises a resin layer (A). The resin layer (A) comprises: a norbornene-based resin (a1) that is a thermoplastic resin having a norbornene-based compound as at least one type of monomer; and an olefin-based thermoplastic resin (a2) other than the norbornene-based resin (a1). The norbornene-based resin (a1) in the resin layer (A) has a content of more than 3.0 mass%. A dicing sheet 1 is also provided which comprises: the base film 2 for a dicing sheet; and a pressure-sensitive adhesive layer 3 placed on a surface of the film at the resin layer (A) side. |
