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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 5774962 B1

PDFFull Text
Date of Patent:
Jul. 07, 1998

Filed:

Jul. 08, 1996

Process for producing a surface acoustic wave device

Applicant:
Inventors:

Yoshio Satoh, Kawasaki, JP;

Osamu Ikata, Kawasaki, JP;

Hidema Uchishiba, Kawasaki, JP;

Takashi Matsuda, Kawasaki, JP;

Tokihiro Nishihara, Kawasaki, JP;

Mitsuo Takanatsu, Kawasaki, JP;

Hajime Taniguchi, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:

Staas & Halsey

Primary Examiner:

Carl E Hall

Assistant Examiner:

Christopher Goins

Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
29 2535 ;
Abstract

This invention relates to a surface acoustic wave device and a production process thereof. An electrode is formed by alternately laminating a film of an aluminum alloy containing at least copper added thereto and a copper film on a piezoelectric substrate. While the particle size of the multi-layered electrode materials is kept small, the occurrence of voids in the film is prevented and life time of the surface acoustic wave device is elongated.

Find Patent Forward Citations

Satoh, Yoshio. (1998). Process for producing a surface acoustic wave device (U.S. Patent No. 5774962). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5774962

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

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