Patent · US Expired

Multilayer printed circuit board with placebo vias for controlling interconnect skew

US6362973B1 · kind B1 · utility

9Cited by
16References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 14, 2000
Grant dateMar 26, 2002
Priority date
Expiry dateMar 14, 2020

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05K2201/09781
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A multi-layer printed circuit board that includes a first layer and a second layer that have first and second signal traces, respectively. The multi-layer printed circuit board includes a via that couples a signal transmitting component to the second signal trace and a throttling member, which is coupled to the first signal trace. The throttling member reduces the speed at which a first signal routed over the first signal trace travels when compared to the speed at which that signal would have traveled had the throttling member been absent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.