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:
Sep. 09, 2008
Filed:
Apr. 03, 2006
Duck-hwan Kim, Goyang-si, KR;
Chul-soo Kim, Hwaseong-si, KR;
Yun-kwon Park, Dongducheon-si, KR;
Sang-chul Sul, Suwon-si, KR;
Byeoung-ju Ha, Seongnam-si, KR;
In-sang Song, Seoul, KR;
Duck-hwan Kim, Goyang-si, KR;
Chul-soo Kim, Hwaseong-si, KR;
Yun-kwon Park, Dongducheon-si, KR;
Sang-chul Sul, Suwon-si, KR;
Byeoung-ju Ha, Seongnam-si, KR;
In-sang Song, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A film bulk acoustic resonator includes a substrate; a lower electrode formed on top of the substrate; a piezoelectric membrane formed on top of the lower electrode and having a crystallographic axis so inclined as to generate a total reflection when an acoustic wave advances toward the lower electrode; and an upper electrode formed on top of the piezoelectric membrane.