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. 13, 2022

Filed:

Jun. 13, 2019
Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo, JP;

Inventor:

Noriyuki Ueki, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/02 (2006.01); H05F 3/04 (2006.01); H01F 27/29 (2006.01); H01L 23/522 (2006.01); H01F 27/28 (2006.01); H01F 27/40 (2006.01); H01L 23/64 (2006.01); H01L 29/866 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0288 (2013.01); H01F 27/2804 (2013.01); H01F 27/29 (2013.01); H01F 27/402 (2013.01); H01L 23/5227 (2013.01); H01L 23/645 (2013.01); H01L 27/0255 (2013.01); H01L 29/866 (2013.01); H05F 3/04 (2013.01); H01L 2924/1206 (2013.01); H01L 2924/12035 (2013.01);
Abstract

An ESD protection element includes a semiconductor substrate, a wiring layer, and an inductor conductor. The semiconductor substrate includes a Zener diode. The inductor conductor is provided on the wiring layer and has a two-dimensional spiral shape. The inductor conductor includes a first inductor conductor and a second inductor conductor that are continuously provided from an outer peripheral end toward an inner peripheral end, and a connection conductor portion in a vicinity of a portion at which the first inductor conductor and the second inductor conductor are connected to each other. The second inductor conductor has a width smaller than a width of the first inductor conductor.


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