| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem that, when high speed differential signals are transmitted to a differential interconnection, in the case of interposing a via-hole having an open stab, a waveform distortion arises by impedance mismatch in the open stab causing jitter to be generated. <P>SOLUTION: To the differential interconnection passing through the via-hole having the open stab, the degree of coupling is made small with the differential characteristic impedance kept constant. Consequently, since the impact of the backward crosstalk noise caused by the coupling can be suppressed small, the jitter can be suppressed. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
