Invention Grant
- Patent Title: Micro-speaker, speaker device and electronic apparatus
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Application No.: US15769798Application Date: 2015-10-21
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Publication No.: US11128957B2Publication Date: 2021-09-21
- Inventor: Quanbo Zou , Zhe Wang , Jun Li
- Applicant: Goertek Inc.
- Applicant Address: CN Shandong
- Assignee: Goertek Inc.
- Current Assignee: Goertek Inc.
- Current Assignee Address: CN Shandong
- Agency: Alston & Bird LLP
- International Application: PCT/CN2015/092406 WO 20151021
- International Announcement: WO2017/066934 WO 20170427
- Main IPC: H04R17/00
- IPC: H04R17/00 ; H04R31/00 ; H01L41/083 ; H01L41/29 ; H04R1/02

Abstract:
A micro-speaker, the manufacturing method thereof, a speaker device and an electronic apparatus are described herein. The micro-speaker comprises a case, wherein the case has an opening; and a piezoelectric layer, wherein one or more electrodes are provided on the piezoelectric layer, and wherein the piezoelectric layer is pre-buckled in its rest position, wherein the piezoelectric layer covers the opening and is bonded onto the case, to form a speaker rear cavity together with the case. The micro-speaker of the present invention has a relatively low speaker profile.
Public/Granted literature
- US20180317017A1 MICRO-SPEAKER, SPEAKER DEVICE AND ELECTRONIC APPARATUS Public/Granted day:2018-11-01
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