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:
Jan. 29, 2008
Filed:
Mar. 24, 2006
Takuo Kudo, Fukushima-ken, JP;
Takeshi Ikeda, Fukushima-ken, JP;
Takashi Sato, Fukushima-ken, JP;
Kyosuke Ozaki, Fukushima-ken, JP;
Yutaka Matsuo, Fukushima-ken, JP;
Toshihiro Meguro, Fukushima-ken, JP;
Takuo Kudo, Fukushima-ken, JP;
Takeshi Ikeda, Fukushima-ken, JP;
Takashi Sato, Fukushima-ken, JP;
Kyosuke Ozaki, Fukushima-ken, JP;
Yutaka Matsuo, Fukushima-ken, JP;
Toshihiro Meguro, Fukushima-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
According to the method of manufacturing a surface acoustic wave device of the invention, since a conductor layer is formed on electrode sections in a state where the entire regions of inter digital transducer and reflectors are covered with an insulating film, the inter digital transducer and the reflectors are protected by the insulating film during formation of the conductor layer. As a result, it is possible to obtain a highly efficient surface acoustic wave device with no sticking of foreign matters to the inter digital transducer and the reflectors.