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:
Jul. 31, 2007
Filed:
May. 17, 2005
In-sang Song, Seoul, KR;
Byeoung-ju Ha, Yongin-si, KR;
Yun-kwon Park, Dongducheon-si, KR;
Jong-seok Kim, Hwasung-si, KR;
Duck-hwan Kim, Goyang-si, KR;
Kuang-woo Nam, Seoul, KR;
Hae-seok Park, Yongin-si, KR;
Seog-woo Hong, Yongin-si, KR;
In-sang Song, Seoul, KR;
Byeoung-ju Ha, Yongin-si, KR;
Yun-kwon Park, Dongducheon-si, KR;
Jong-seok Kim, Hwasung-si, KR;
Duck-hwan Kim, Goyang-si, KR;
Kuang-woo Nam, Seoul, KR;
Hae-seok Park, Yongin-si, KR;
Seog-woo Hong, Yongin-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A filter using an air gap type film bulk acoustic resonator is provided. The present filter includes a substrate on which a first port, a second port, and a ground port are formed to be connected to an external terminal; at least one first film bulk acoustic resonator serially connecting the first port to the second port on the substrate; at least one second film bulk acoustic resonator parallel connected to an interconnection node formed between the first port and the second port; and at least one inductor serially connecting the second film bulk acoustic resonator to the ground port. The inductor included in the filter is fabricated with the first and second film bulk acoustic resonators as one body. Accordingly, a small-sized filter may be fabricated through a simplified process.