| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a substrate built-in type electric connector in which reduction of cross talk between wires and realization of impedance matching of a pattern formed at a built-in substrate can be made easily. <P>SOLUTION: This is the electric connector in which terminals of a plurality of cables having a pair of cores for signal transmission and drain wires at the center part are connected to the built-in substrate. The substrate is formed by a plurality of sheets of laminated insulating layer substrates 11, 12, 16, soldering lands 11s, 12s which solder the cores for signal transmission of the cables to the insulating layer substrate 11, 12 of those front and rear faces and signal cables 11p, 12n are formed, and holes 14h, 15h for impedance matching which are positioned at the soldering lands 11s, 12s are formed at the intermediate insulating layer substrate 16. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
