ADHESIVE FILM AND METHOD FOR PRODUCING THE SAME

摘要

An adhesive film includes a film-like adhesive layer and a pair of separators sandwiching the adhesive layer. The outer edges of both separators extend outward beyond the outer edge of the adhesive layer, and a blade is used to form a notch on the adhesive layer side of the heavy release separator, along the outer edge of the adhesive layer. The thickness of the heavy release separator is between 50μm and 200μm, the average notch depth is between 5μm and 45μm and the standard deviation for the notch depth is no greater than 15μm. Specifying the notch depth allows complete cutting of the adhesive layer with the blade, while also limiting release problems between the heavy release separator and the adhesive layer.