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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.:

US 9312927 B1

PDFFull Text
Date of Patent:
Apr. 12, 2016

Filed:

Nov. 11, 2013

Tunable guard ring for improved circuit isolation

Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Maulin Pareshbhai Bhagat, San Jose, CA (US);

Thomas Andrew Myers, San Diego, CA (US);

Lan Nan, San Diego, CA (US);

Zhang Jin, San Diego, CA (US);

Assignee:

Qualcomm Incorporated, San Diego, CA (US);

Attorney:

Smith Risley Tempel Santos LLC

Primary Examiner:

Benny Lee

Assistant Examiner:

Albens Dieujuste

Int. Cl.
CPC ...
H04B 5/00 (2006.01); H03H 7/01 (2006.01); H01F 38/14 (2006.01); H01L 23/522 (2006.01); H01L 23/64 (2006.01); H01L 49/02 (2006.01); H01L 23/66 (2006.01); H01L 27/10 (2006.01);
U.S. Cl.
CPC ...
H04B 5/0075 (2013.01); H01F 38/14 (2013.01); H01L 23/5223 (2013.01); H01L 23/5227 (2013.01); H01L 23/645 (2013.01); H01L 23/66 (2013.01); H01L 28/10 (2013.01); H03H 7/0115 (2013.01); H01L 27/101 (2013.01); H01L 2223/6661 (2013.01); H01L 2223/6688 (2013.01); H01L 2924/0002 (2013.01);
Abstract

A tunable guard ring for improved circuit isolation is disclosed. In an exemplary embodiment, an apparatus includes a closed loop guard ring formed on an integrated circuit and magnetically coupled by a selected coupling factor to a first inductor formed on the integrated circuit. The apparatus also includes a tunable capacitor forming a portion of the closed loop guard ring and configured to reduce magnetic field coupling from the first inductor to a second inductor.

Find Patent Forward Citations

Quick Actions:

Bhagat, Maulin. (2016). Tunable guard ring for improved circuit isolation (U.S. Patent No. 9312927). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9312927

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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