Patent · US Active

Circuit on a printed circuit board

US7742315B2 · kind B2 · utility

0Cited by

7References

4Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Wiren D. Becker · Hyde Park, US
Bruce J. Chamberlin · Vestal, US
Gerald J. Fahr · Wappingers Falls, US
Roland Frech · Esslingen am Neckar, DE
Dierk Kaller · Schenefeld, DE
George A. Katopis · Poughkeepsie, US
Erich Klink · Schenefeld, DE
Thomas-Michael Winkel · Eppelheim, DE

Key dates

Filing date	Nov 17, 2005
Grant date	Jun 22, 2010
Priority date	—
Expiry date	Mar 5, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH05K2201/10189
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to computer hardware design, and in particular to a printed circuit board (card) comprising wiring dedicated to supply electric board components such as integrated circuits with at least three different reference planes. In particular at locations, where the pins of a card-to-card connector enter the layer structure of the card discontinuities brake the high frequency signal return path of a given signal wiring.In order to close the signal return path around a signal path from card to card including the connector, and thus to limit the signal coupling while concurrently keeping the card design as simple as possible, it is proposed to provide

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