Invention Grant
US08237330B2 Vibrating element, fabrication method thereof, and ultrasonic motor having the same
有权
振动元件及其制造方法以及具有该振动元件的超声波马达
- Patent Title: Vibrating element, fabrication method thereof, and ultrasonic motor having the same
- Patent Title (中): 振动元件及其制造方法以及具有该振动元件的超声波马达
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Application No.: US12368705Application Date: 2009-02-10
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Publication No.: US08237330B2Publication Date: 2012-08-07
- Inventor: Jin-woo Cho , Ji-hyuk Lim , Sung-hyuk Park
- Applicant: Jin-woo Cho , Ji-hyuk Lim , Sung-hyuk Park
- 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: KR10-2008-0094234 20080925
- Main IPC: H01L41/08
- IPC: H01L41/08 ; H02N2/10

Abstract:
A vibrating element of an ultrasonic motor includes a vibrating member, and a piezoelectric body to produce a traveling wave thus to vibrate the vibrating member when electric power is applied to the piezoelectric body. The piezoelectric body includes a first piezoelectric layer attached to the vibrating member and in which positive poles and negative poles are alternately polarized, a second piezoelectric layer attached to the first piezoelectric layer and in which positive poles and negative poles are alternately polarized, a plurality of electrodes formed on opposite surfaces of the first and second piezoelectric layers, and an electrode connecting part formed on outer circumferential surfaces of the first and second piezoelectric layers to selectively connect the plurality of electrodes to one other.
Public/Granted literature
- US20100072861A1 VIBRATING ELEMENT, FABRICATION METHOD THEREOF, AND ULTRASONIC MOTOR HAVING THE SAME Public/Granted day:2010-03-25
Information query
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