| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a printed circuit board capable of adjusting the impedance, without having to depend on the number of conductor patterns that constitute a printed circuit board. <P>SOLUTION: The printed circuit board 10 is constituted of an insulator substrate 11, a wiring pattern that includes a metal conductor part 13 which is formed as a pattern for transmitting an electrical signal, formed at least on the principal plane of the substrate or in the substrate; a power source layer formed on at least one of the principal plane of the substrate and the rear surface of the substrate; and the power source layer includes an impedance control mechanism. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
