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:
Feb. 24, 2009
Filed:
May. 02, 2005
Weston Roth, Hillsboro, OR (US);
Damion T. Searls, Hillsboro, OR (US);
James D. Jackson, Beaverton, OR (US);
Weston Roth, Hillsboro, OR (US);
Damion T. Searls, Hillsboro, OR (US);
James D. Jackson, Beaverton, OR (US);
Intel Corporation, Hillsboro, OR (US);
Abstract
The invention relates to an apparatus and method for improving AC coupling between adjacent signal traces and between plane splits and signals spanning plane splits on circuit boards. A circuit board includes adjacent conductive means and an oxide means interposed there between. The oxide means is a copper oxide, e.g., cupric or cuprous oxide. In one embodiment, the adjacent conductive means are adjacent voltage reference planes with a split interposed between the conductive means. The copper oxide fills the split. In another embodiment, the adjacent conductive means are differential signal traces. The copper oxide fills a gap between the differential signal traces. The copper oxide is a non-conductive material with an increased dielectric constant as compared to other common dielectric materials used as fillers. The increased dielectric constant increases capacitance, in turn, increasing AC coupling.