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.:
Date of Patent:
Oct. 30, 2001
Filed:
Mar. 23, 2000
Applicant:
Inventors:
Morio Ogura, Hirakata, JP;
Naoki Tanaka, Sakai, JP;
Assignee:
Sanyo Electric Co., Ltd., Moriguchi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 4/104 ;
U.S. Cl.
CPC ...
H01L 4/104 ;
Abstract
An SAW device including a glass substrate, an LiNbO,(LT) substrate, and an electrode. When a pitch of the electrode is &lgr;, a thickness of the LT substrate is H, and K equals to 2&pgr;/&lgr;, a product of K and H is at least 0.5 and at most 1.5. Accordingly, a SAW device which can advantageously reduced in size by a reduction in propagation velocity and which is provided with high K,and an enhanced temperature characteristic as having a good temperature characteristic of the LT substrate.