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:
Apr. 16, 2002
Filed:
Nov. 07, 2000
Applicant:
Inventors:
Susumu Yoshimoto, Tokyo, JP;
Yasushi Yamamoto, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 4/104 ; H03H 9/00 ;
U.S. Cl.
CPC ...
H01L 4/104 ; H03H 9/00 ;
Abstract
The present invention disclosed a SAW filter in which unnecessary space on a chip can be reduced in comparison with the prior art, and in which a smaller chip can be realized. Because oblique step shaped reflection surfaces are provided in order to reflect the SAW, a smaller SAW filter than that used in the prior art can be realized.