The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2010
Filed:
Nov. 17, 2005
Wiren D. Becker, Hyde Park, NY (US);
Bruce J. Chamberlin, Vestal, NY (US);
Gerald J. Fahr, Wappingers Falls, NY (US);
Roland Frech, Ostfildern, DE;
Dierk Kaller, Schoenaich, DE;
George Katopis, Poughkeepsie, NY (US);
Erich Klink, Schoenaich, DE;
Thomas-michael Winkel, Schoenaich, DE;
Wiren D. Becker, Hyde Park, NY (US);
Bruce J. Chamberlin, Vestal, NY (US);
Gerald J. Fahr, Wappingers Falls, NY (US);
Roland Frech, Ostfildern, DE;
Dierk Kaller, Schoenaich, DE;
George Katopis, Poughkeepsie, NY (US);
Erich Klink, Schoenaich, DE;
Thomas-Michael Winkel, Schoenaich, DE;
International Business Machines Corporation, Armonk, NY (US);
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