| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed wiring board whose specific shapes are made different according to the types of boards for easily discriminating a mounting operation process to be executed from the specific shapes. SOLUTION: This printed wiring board 31 is mounted with a board external frame 32 in the periphery, and formed with a bridge 33 in the boundary part. The circuit diagram drawing number of the printed wiring board 31 or a unique board number 34 such as the name of type are described for identifying the board by a silk printing, pattern, and resist layer peeling means or the like at the left-hand lower corner of the printed wiring board 31. Then, a through-hole 36 for identification is formed at the corner, for example, the right-hand lower corner of the printed wiring board 31 as the specific shape for discriminating the type of the substrate, and the type of the printed wiring board 31 can be discriminated by changing the diameter of the through-hole 36 for identification. COPYRIGHT: (C)2005,JPO&NCIPI
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