Patent ID: 6919262

Claim:
A process for producing semiconductor chips having a protective film on the back surface comprising: providing a sheet to form a protective film for chips comprising a release sheet and a protective film-forming layer formed on a detachable surface of the release sheet, wherein said protective film-forming layer comprises a thermosetting or energy ray-curable component and a binder polymer component; adhering the protective film-forming layer of the sheet to form a protective film for chips onto a back surface of a semiconductor wafer having circuits on its front surface, and thereafter, further conducting the following steps 1 to 3 in an arbitrary order: Step 1: detaching the release sheet from the protective film-forming layer; Step 2: curing the protective film-forming layer by heating or energy ray irradiation; and Step 3: dicing the semiconductor wafer together with the protective film-forming layer with respect to each circuit: picking up the semiconductor chip having a protective film on its back surface, and mounting the front surface of the semiconductor chip to a substrate.