发明名称 PRINTED CIRCUIT BOARD AND IDENTIFICATION METHOD THEREOF
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
申请公布号 JP2004327600(A) 申请公布日期 2004.11.18
申请号 JP20030118473 申请日期 2003.04.23
申请人 SUMITOMO ELECTRIC IND LTD 发明人 IWADATE HIROTAKE
分类号 H05K1/11;H05K1/02;(IPC1-7):H05K1/02 主分类号 H05K1/11
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