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:
Jun. 24, 2008
Filed:
Jun. 27, 2005
Yuuko Yokota, Soraku-gun, JP;
Motoki Ito, Soraku-gun, JP;
Kiyohiro Iioka, Soraku-gun, JP;
Wataru Koga, Soraku-gun, JP;
Shigehiko Nagamine, Soraku-gun, JP;
Yuuko Yokota, Soraku-gun, JP;
Motoki Ito, Soraku-gun, JP;
Kiyohiro Iioka, Soraku-gun, JP;
Wataru Koga, Soraku-gun, JP;
Shigehiko Nagamine, Soraku-gun, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
After electrode patterning on an electrode forming surface of a piezoelectric substrate(FIG.()), a conductor layer is formed on an electrode non-forming surface of the piezoelectric substrate(FIG.()). After forming the conductor layer, the conductor layer formed on the other surface is removed (FIG.()) after at least one step (FIG.()), and thereafter, dicing for separation into elements and mounting on a mounting substrate are carried out. By removing all the conductor layer on the other surface of the piezoelectric substrate, the out-of-passband attenuation and isolation performance can be significantly improved.