| 摘要 |
PROBLEM TO BE SOLVED: To provide a one side metal clad laminated sheet thin, little in warpage and favorable as a substrate material, and a method for manufacturing the same.SOLUTION: A heat resistant film has an adhesive layer on one face of its both faces and a non-adhesive layer on the other face. The non-adhesive layer is a polyimide resin containing 80-99.5% of residue of aromatic diamine expressed by general formula (1) with respect to the total diamine residue, 0.5-10% of residue of a siloxane-based diamine with respect to the total diamine residue, and 60-95% of residue of a pyromellitic dianhydride with respect to the total acid dianhydride residue. The thickness of the non-adhesive layer is 30-70% of the thickness of the adhesive layer. Each of R-Rmay be either a single one or a mixture with other ones, and each represents a hydrogen atom, a 1-30C alkyl group or the like; and X represents O, S, SO or the like. |
