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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 11239405 B1

PDFFull Text
Date of Patent:
Feb. 01, 2022

Filed:

Oct. 01, 2018

Method of producing a composite substrate

Applicants:

Ngk Insulators, Ltd., Aichi, JP;

Ngk Ceramic Device Co., Ltd., Aichi, JP;

Inventors:

Tomoyoshi Tai, Inazawa, JP;

Yuji Hori, Owariasahi, JP;

Takahiro Yamadera, Nagoya, JP;

Ryosuke Hattori, Ichinomiya, JP;

Kengo Suzuki, Nagoya, JP;

Assignees:

NGK INSULATORS, LTD., Aichi, JP;

NGK CERAMIC DEVICE CO., LTD., Aichi, JP;

Attorneys:

Cermak Nakajima & McGowan LLP

Tomoko Nakajima

Primary Examiner:

A Dexter Tugbang

Int. Cl.
CPC ...
H01L 41/08 (2006.01); H03H 3/10 (2006.01); H03H 9/02 (2006.01); H01L 41/312 (2013.01); H01L 41/332 (2013.01); H01L 41/277 (2013.01); H01L 41/311 (2013.01); H01L 41/25 (2013.01); H03H 3/04 (2006.01);
U.S. Cl.
CPC ...
H01L 41/081 (2013.01); H01L 41/0805 (2013.01); H01L 41/277 (2013.01); H01L 41/312 (2013.01); H01L 41/332 (2013.01); H03H 9/02574 (2013.01); H03H 9/02834 (2013.01); H01L 41/25 (2013.01); H01L 41/311 (2013.01); H03H 3/10 (2013.01); H03H 2003/045 (2013.01); H03H 2003/0435 (2013.01); H03H 2003/0442 (2013.01); Y10T 29/42 (2015.01);
Abstract

Described herein is a method of bonding a piezoelectric substrate to a support substrate to form a composite substrate. The piezoelectric substrate has one surface which is positively polarized, and a second surface which is negatively polarized. The method described herein includes the steps of bonding the positively polarized surface of the piezoelectric substrate to one surface of the support substrate by a direct bonding method.

Find Patent Forward Citations

Tai, Tomoyoshi. (2022). Method of producing a composite substrate (U.S. Patent No. 11239405). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11239405

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

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