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Patent Searching and Data


Title:
FILM BULK ACOUSTIC RESONATOR
Document Type and Number:
WIPO Patent Application WO/2019/141073
Kind Code:
A1
Abstract:
The present invention provides a film bulk acoustic resonator, comprising a layered structure composed of a top electrode, a piezoelectric layer, and a bottom electrode; and a substrate. A reflective interface is provided between the bottom electrode and the substrate. By defining the shape of the overall or part of the layered structure, the purpose of suppressing a lateral standing wave is achieved without adding a new process, the manufacturing cost of the device is controlled, and the benefit of product development is maximized.

Inventors:
LIAO, Peichun (Room 6, Floor 1-2 Building G17-S, Huifeng Tongqing Garden, Liang Shantou Village, Canglong Island, Jiangxia Distric, Wuhan Hubei 5, 430205, CN)
LIN, Ruiqin (Room 6, Floor 1-2 Building G17-S, Huifeng Tongqing Garden, Liang Shantou Village, Canglong Island, Jiangxia Distric, Wuhan Hubei 5, 430205, CN)
ZHAO, Junwu (Room 6, Floor 1-2 Building G17-S, Huifeng Tongqing Garden, Liang Shantou Village, Canglong Island, Jiangxia Distric, Wuhan Hubei 5, 430205, CN)
Application Number:
CN2018/125238
Publication Date:
July 25, 2019
Filing Date:
December 29, 2018
Export Citation:
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Assignee:
WUHAN YANXI MICRO COMPONENTS CO., LTD. (Room 6, Floor 1-2 Building G17-S, Huifeng Tongqing Garden, Liang Shantou Village, Canglong Island, Jiangxia Distric, Wuhan Hubei 5, 430205, CN)
International Classes:
H03H9/13; H03H9/17
Foreign References:
CN108134588A2018-06-08
CN207869078U2018-09-14
CN108134589A2018-06-08
CN207869079U2018-09-14
CN1845453A2006-10-11
CN1794572A2006-06-28
CN1364339A2002-08-14
US20140125202A12014-05-08
Attorney, Agent or Firm:
HUBEI WUHAN YONGJIA PATENT AGENCY CO., LTD (708 Zhaofu International Building, No.717 WuluoRd, Wuchang Distric, Wuhan Hubei 2, 430072, CN)
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