| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a flexible laminated substrate which can inhibit a qualitative dispersion and has excellent dimensional stability. SOLUTION: This method manufactures the flexible laminated substrate comprising a conductor layer and a polyimide resin layer by applying a polyimide precursor resin solution directly to the surface of a conductor, then drying the solution, and after that, curing the dried solution thermally. The polyimide precursor resin can be obtained by adjusting the (A)/(B) molar ratio of (A) a tetracarboxylic acid or its acid anhydride to (B) a diamino compound to the range of 0.98±0.01 and setting the coefficient of linear expansion of the polyimide resin layer to not more than 10×10<SP>-6</SP>/K. COPYRIGHT: (C)2007,JPO&INPIT |
