| 摘要 |
PROBLEM TO BE SOLVED: To make it easy that propagation delay tuning of bus wiring which transmits a high-speed signal is performed at the time of design. SOLUTION: In a printed wiring board, transmission between a plurality of ICs is performed by using a high-speed bus signal wiring group. Regarding insulator at the periphery of wiring of the bus signal wiring group, the other IC side is formed of insulator different from insulator of one IC side. COPYRIGHT: (C)2005,JPO&NCIPI
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