Invention Grant
- Patent Title: Method of manufacturing stacked thin film piezoelectric filter
- Patent Title (中): 堆叠薄膜压电滤波器的制造方法
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Application No.: US14492210Application Date: 2014-09-22
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Publication No.: US09386388B2Publication Date: 2016-07-05
- Inventor: Takashi Miyake
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2009-278576 20091208; JP2010-236297 20101021
- Main IPC: H01R31/00
- IPC: H01R31/00 ; H03H3/02 ; H04R31/00 ; H01L41/27 ; H01L41/083 ; H03H9/58 ; H03H3/04

Abstract:
A method of manufacturing a stacked thin film piezoelectric filter includes the steps of forming a lower thin film piezoelectric resonator on a substrate, measuring and adjusting a frequency of the lower thin film piezoelectric resonator, forming an acoustic coupling layer on the lower thin film piezoelectric resonator where the frequency of the lower thin film piezoelectric resonator has been adjusted, forming an upper thin film piezoelectric resonator on the acoustic coupling layer, and measuring and adjusting a frequency of the stacked thin film piezoelectric filter.
Public/Granted literature
- US20150017320A1 METHOD OF MANUFACTURING STACKED THIN FILM PIEZOELECTRIC FILTER Public/Granted day:2015-01-15
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