| abstract |
A dicing sheet with a protective film forming layer has a substrate film, an adhesive layer, and a protective film forming layer, and at a minimum, the adhesive layer is formed in an area surrounding the protective film forming layer in a planar view, and the substrate film has the following characteristics (a)-(c): (a) the melting point either exceeds 130° C. or the film has no melting point; (b) the thermal contraction rate under conditions of heating at 130° C. for two hours is from −5 to +5%, and (c) the degree of elongation-to-break in the MD direction and the CD direction is at least 100%, and the stress at 25% is no more than 100 MPa. |