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. 06, 1998
Filed:
Apr. 09, 1996
Eiichi Fukiharu, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A surface acoustic wave device of the present invention includes piezo-electric substrates 1 and 2 each having one surface formed with interdigital electrodes 12A, 12B, for transmission and receiving of surface acoustic waves, are received in a casing including a stem 4, a seal ring 9 and a cover plate 5, etc. The piezo-electric substrates 1 and 2 are arranged such that the one surfaces thereof face each other with a predetermined space therebetween and electrically conductive members 3 are disposed between the piezo-electric substrates 1 and 2. The electrically conductive members 3 may be gold bumps, solder bumps, metal balls of such as solder or copper, electrically conductive adhesive members or electrically conductive rubber members, etc. The surface acoustic wave device is applicable to such as filters and featured by having small mounting area and easiness of manufacture.