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.

Date of Patent:
Sep. 23, 2025

Filed:

Aug. 30, 2021
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Long Wang, El Dorado Hills, CA (US);

Ranjul Balakrishnan, Bangalore, IN;

Stephen H. Hall, Forest Grove, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/02 (2006.01); G06F 1/18 (2006.01); G06F 13/42 (2006.01); H05K 1/11 (2006.01); H05K 1/18 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0245 (2013.01); G06F 1/184 (2013.01); G06F 1/188 (2013.01); G06F 13/4282 (2013.01); H05K 1/115 (2013.01); H05K 1/18 (2013.01); G06F 2213/0026 (2013.01); G06F 2213/0042 (2013.01); H05K 2201/1003 (2013.01);
Abstract

Apparatus and methods employing twisted differential compensation for routing high-speed signals near power delivery inductors. Traces used for a high-speed differential signal including a P trace and an N trace are routed through one or more layers in a multi-layer printed circuit board (PCB) substrate and employ a twisted portion proximate to the centerline of an inductor under which portions of the P and N traces are swapped horizontally in a layer parallel to the top plane and/or are swapped vertically by swapping layers. The signal paths are routed such that a level of noise inductively coupled into the P trace and the N trace from the inductor is approximately equally. Stripline structures are used for signals that are routed under an inductor, while stripline and microstrip structures are used for signals routed adjacent to an inductor.


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