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:
Sep. 23, 2014
Filed:
Feb. 26, 2010
Xiaohong Jiang, San Jose, CA (US);
Hong Shi, Fremont, CA (US);
Xiaohong Jiang, San Jose, CA (US);
Hong Shi, Fremont, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
In one embodiment, a printed circuit board (PCB) comprises one or more signal contact pads on a surface of the PCB and a plurality of ground planes embedded in the PCB with at least the ground plane closest to the signal contact pads) having gaps in line with the trace(s). In another embodiment, a PCB comprises one or more signal traces on a first surface of the PCB, a plurality of ground planes embedded in the PCB, and at least one blind via interconnecting the ground planes. In still another embodiment, a PCB comprises one or more signal contact pads on a first surface of the PCB, a plurality of ground planes embedded in the PCB with at least the ground plane closest to the signal contact pad(s) having a gap in line with the signal contact pad(s), and at least one blind via interconnecting the ground planes. In still another embodiment, signal contact pads may be formed on both major surfaces of the PCB.