| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple method for identifying the leads of electrical components that cannot be reused in a printed circuit board on which electrical components that are reusable, and those that are not reusable are mounted. SOLUTION: The printed-circuit board 1 has a hole H1 for instructing the leads of the electrical components that cannot be reused. The hole H1 is a small-diameter hole provided between the leads S1, S1 of the electrical components that are not reusable. The small-diameter hole is formed to be smaller than the lead diameter of the electrical components that cannot be reused. COPYRIGHT: (C)2006,JPO&NCIPI
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