摘要 |
PROBLEM TO BE SOLVED: To provide a printed circuit board wherein area required for identification is narrow and discrimination is enabled electrically and visually, and its identification method. SOLUTION: A chip resistor 11 for identification having resistance value which is previously matched with a kind of packaging finished product of a printed circuit board is arranged on the printed circuit board, and the printed circuit board is identified by measuring the resistance value of the chip resistor 11 for identification. Marking 19 which corresponds to a kind of the chip resistor 11 for identification is arranged on an external surface of the chip resistor 11. COPYRIGHT: (C)2005,JPO&NCIPI
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