| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible wiring board which is thin in mounting thickness and elastic. SOLUTION: The flexible printed board 1 is provided with wiring at a base portion, and includes a hole portion 2 formed penetrating the base portion, a deformable portion 3 formed of the base portion enclosing a periphery of the hole portion 2 and capable of curving in an extension direction with tensile force to deform, and a wiring portion 6 formed at the deformable portion 3 from an input end 4 to an output end 5 while bypassing the hole portion 2. The hole portion 2 is shaped to have a different aspect ratio. A plurality of hole portions 2 are formed. The plurality of hole portions 2 have diagonals made longer other in the extension direction than that in the extension direction, and sides of the hole portions 2 are arranged opposite each other. COPYRIGHT: (C)2010,JPO&INPIT
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