| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a flexible circuit board, together with its manufacturing method, for finding the fact that trimming is not completed or insufficient. SOLUTION: A conductive layer is provided on an insulating sheet of a flexible material, and a circuit pattern is formed on the conductive layer. A trimming mark 12 indicating completion of a trimming process is provided on a section 10B of a flexible circuit board 10 except for a section 10A where the circuit pattern is formed. In the method for manufacturing the flexible circuit board, the circuit pattern is formed on the substrate where the conductive layer is formed on the flexible insulating sheet, and drilling or other trimming process is performed at the part required for forming a circuit on the board. A trimming mark indicating completion of the trimming process is trimmed at a part not required for forming the circuit board. COPYRIGHT: (C)2003,JPO
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