Title:
TRANSDUCER DEVICE, SURFACE ACOUSTIC WAVE RESONANCE DEVICE AND FORMATION METHOD THEREFOR, AND FILTERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/094057
Kind Code:
A1
Abstract:
A transducer device, a surface acoustic wave resonance device and a formation method therefor, and a filtering device. The surface acoustic wave resonance device comprises: a piezoelectric substrate; and a transducer device located on the piezoelectric substrate. The transducer device comprises: a plurality of electrode strips which are arranged in parallel in a first direction, each electrode strip comprises a first layer and a second layer located above the first layer, and the average diameter of first crystal grains in the first layer is smaller than the average diameter of second crystal grains in the second layer. The performance of the surface acoustic wave resonance device is improved.
Inventors:
ZOU YALI (CN)
TANG ZHENGJIE (CN)
YANG XINYU (CN)
TANG ZHENGJIE (CN)
YANG XINYU (CN)
Application Number:
PCT/CN2023/129040
Publication Date:
May 10, 2024
Filing Date:
November 01, 2023
Export Citation:
Assignee:
CHANGZHOU CHEMSEMI CO LTD (CN)
International Classes:
H03H9/145; H03H3/08; H03H9/02; H03H9/25; H03H9/64
Foreign References:
| CN115567027A | 2023-01-03 | |||
| CN114600373A | 2022-06-07 | |||
| CN1705225A | 2005-12-07 | |||
| CN115085688A | 2022-09-20 | |||
| US20220173722A1 | 2022-06-02 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
Download PDF:
Previous Patent: INFORMATION REPORTING METHOD AND USER EQUIPMENT
Next Patent: MODEL TRAINING METHOD AND RELATED APPARATUS
Next Patent: MODEL TRAINING METHOD AND RELATED APPARATUS