| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible printed board of high reliability, in which a polyarylate film of superior heat resistance and dimensional stability is used as a base substance. SOLUTION: In this flexible printed board, a metal plating layer is laminated on at least one surface of a polyarylate film via a conductive deposition film. The glass transition temperature of polyarylate is at least 170 deg.C, and the carboxyl value of polyarylate is at most 30 mol/ton.
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