Invention Grant
- Patent Title: Piezoelectric microspeaker and method of fabricating the same
- Patent Title (中): 压电式微型扬声器及其制造方法
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Application No.: US13169408Application Date: 2011-06-27
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Publication No.: US09049522B2Publication Date: 2015-06-02
- Inventor: Joo-Ho Lee , Dong-Kyun Kim , Sang-Hun Lee , Seok-Whan Chung
- Applicant: Joo-Ho Lee , Dong-Kyun Kim , Sang-Hun Lee , Seok-Whan Chung
- 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: KR10-2010-0098406 20101008
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04R17/00

Abstract:
A piezoelectric microspeaker and a method of fabricating the same are provided. The piezoelectric microspeaker includes a substrate having a through hole therein; a diaphragm disposed on the substrate and covering the through hole; and a plurality of piezoelectric actuators including a piezoelectric member, a first electrode, and a second electrode, wherein the first and second electrodes are configured to induce an electric field in the piezoelectric member. The piezoelectric actuators include a central actuator, which is disposed on a central portion of the diaphragm and a plurality of edge actuators, which are disposed a predetermined distance apart from the central actuator and are formed on a plurality of edge portions of the diaphragm.
Public/Granted literature
- US20120087522A1 PIEZOELECTRIC MICROSPEAKER AND METHOD OF FABRICATING THE SAME Public/Granted day:2012-04-12
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