Invention Grant
- Patent Title: Surface acoustic wave filter and manufacturing method therefor
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Application No.: US17134228Application Date: 2020-12-25
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Publication No.: US11356076B2Publication Date: 2022-06-07
- Inventor: Kazuhito Kishida , Shoji Kakio , Jun Mizuno
- Applicant: THE JAPAN STEEL WORKS, LTD.
- Applicant Address: JP Tokyo
- Assignee: THE JAPAN STEEL WORKS, LTD.
- Current Assignee: THE JAPAN STEEL WORKS, LTD.
- Current Assignee Address: JP Tokyo
- Agency: SGPatents PLLC
- Priority: JPJP2020-007972 20200122
- Main IPC: H03H9/02
- IPC: H03H9/02 ; H03H9/145 ; H03H3/08 ; H03H9/64
Abstract:
In a surface acoustic wave filter according to an embodiment, a thickness of a piezoelectric crystal substrate bonded over a support substrate made of an oxide crystal is 0.05 to 0.5 μm, and an odd-order harmonic is used.
Public/Granted literature
- US20210226602A1 SURFACE ACOUSTIC WAVE FILTER AND MANUFACTURING METHOD THEREFOR Public/Granted day:2021-07-22
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