| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible printed board in which a chemical liquid does not enter toward a non-objective land when the surface of the flexible printed board in which masking is performed is processed. SOLUTION: The flexible printed board has two or more surface processing areas, and the masking is performed in these areas for surface processing. In the flexible printed board, a pattern 10 for preventing a treatment liquid from entering is formed in the vicinity of the surface processing areas 1 in which the masking is performed. COPYRIGHT: (C)2006,JPO&NCIPI
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