- Patent Title: Piezoelectric element for speaker and manufacturing method therefor
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Application No.: US16957829Application Date: 2018-12-18
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Publication No.: US11968903B2Publication Date: 2024-04-23
- Inventor: Jisun Kim , Taeyoung Kim , Joungkook Seo , Sanghoon Choi
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Priority: KR 20170184627 2017.12.29
- International Application: PCT/KR2018/016075 2018.12.18
- International Announcement: WO2019/132368A 2019.07.04
- Date entered country: 2020-06-25
- Main IPC: H10N30/50
- IPC: H10N30/50 ; H04R3/12 ; H04R17/00 ; H10N30/05 ; H10N30/082 ; H10N30/853 ; H10N30/87

Abstract:
Provided are a piezoelectric element for a speaker and a method of manufacturing the same. The piezoelectric element for a speaker includes a plurality of piezoelectric ceramic layers stacked on one another in a thickness direction, and a plurality of electrodes provided to be connected to middle portions of sides of the plurality of piezoelectric ceramic layers along external walls of the plurality of stacked piezoelectric ceramic layers, wherein middle portions of some sides from among a plurality of sides of each of the plurality of piezoelectric ceramic layers are etched, and wherein the plurality of piezoelectric ceramic layers are stacked on one another in the thickness direction not to overlap non-etched sides from among the plurality of sides.
Public/Granted literature
- US20210376220A1 PIEZOELECTRIC ELEMENT FOR SPEAKER AND MANUFACTURING METHOD THEREFOR Public/Granted day:2021-12-02
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