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. 24, 2008
Filed:
Dec. 17, 2003
Jean-francois Fauh, Vence, FR;
Claude Gomez, Antibes, FR;
Andre Lecerf, Nice, FR;
Denis G. Roman, La Turbie, FR;
Jean-Francois Fauh, Vence, FR;
Claude Gomez, Antibes, FR;
Andre Lecerf, Nice, FR;
Denis G. Roman, La Turbie, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for improving power distribution and/or current measurement on a printed circuit board is disclosed. According to the invention, a first power plane adapted for current measurement includes a first segment to which a current source is connected and a second segment to which other devices may be connected, forming the current load. A third segment is used to measure the current between the first segment and the second segment through two vias that link two points of the third segment to, preferably, two pads of the external layer. In a preferred embodiment, vias are connected to the first segment so that current flow in the third segment is linear, to improve and simplify current determination. The resistivity between the pair of vias may be computed or estimated using calibrated currents.