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, 2013
Filed:
Jan. 13, 2011
Jun-sik Hwang, Ohsan-si, KR;
Yun-kwon Park, Dongducheon-si, KR;
Il-jong Song, Seoul, KR;
Byeoung-ju Ha, Yongin-si, KR;
Jun-sik Hwang, Ohsan-si, KR;
Yun-kwon Park, Dongducheon-si, KR;
Il-jong Song, Seoul, KR;
Byeoung-ju Ha, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
Provided is a method for fabricating a duplexer. The method includes fabricating an embedded PCB having an isolation part built therein and forming pads on certain areas of an upper side of the embedded PCB to connect with an external terminal. Further, a first filter and a second filter are separately fabricated, each having at least one film bulk acoustic resonator which is fabricated by depositing a lower electrode, a piezoelectric layer, and an upper electrode in this respective order. Thereafter, the first and second filters are bonded onto the pads formed on the embedded PCB. The entire surface of the embedded PCD is packaged at a predetermined distance from the first and second filters.