| 摘要 |
PROBLEM TO BE SOLVED: To provide a production process for adhesive film allowing to obtain a flexible metal-clad laminate inhibited from occurrence of a dimensional change when made by a lamination method, and a production process for the flexible metal-clad laminate obtained by bonding a metal film to the adhesive film.SOLUTION: A production process for adhesive film includes a step of conveying a gel film in a heating oven while fixing both of its ends, wherein part of the step includes a step of conveying the gel film while fixing the film so that there is substantially no tension of the film in the transverse direction, or a step of conveying the gel film in the heating oven while fixing both of its ends, and after the step, a step of heating the film with both ends being unfixed. Coefficients of linear expansion of the adhesive film satisfy 1.0>(coefficient of MD linear expansion)/(coefficient of TD linear expansion)>0.1 (the coefficients of linear expansion are the values at 100-200°C). |
