ADHESIVE TAPE FILM, AND ADHESIVE TAPE

摘要

Provided is an adhesive tape film comprising a non-adhesive layer provided on a substrate film. This adhesive tape film effectively prevents over-adhesion due to heat of a fixing base (when performing dicing by attachment to the base by negative pressure suction), effectively suppresses blocking in the roll form by providing the non-adhesive layer on the substrate film, does not exhibit tearing or splitting when unwinding out of the roll form, exhibits good affinity between the non-adhesive layer and the substrate film, and has good conformability to deformations such as stretching. Further disclosed is an adhesive tape including such an adhesive tape film. This adhesive tape film is provided with a non-adhesive layer on one surface of a plastic film, wherein the surface of said non-adhesive layer has an uneven structure, and, measured by an atomic force microscope, the elastic modulus at 80°C in the convex portions of said non-adhesive layer surface is 0.2GPa or greater.