Title:
PIEZOELECTRIC SINGLE CRYSTAL, FABRICATION METHOD THEREFOR, AND PIEZOELECTRIC AND DIELECTRIC APPLICATION PARTS USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/124792
Kind Code:
A1
Abstract:
The present invention relates to a piezoelectric single crystal, a fabrication method therefor, and piezoelectric and dielectric application parts using the piezoelectric single crystal. The piezoelectric single crystal of the present invention maximizes properties of the piezoelectric single crystal by, in a perovskite-type crystal structure ([A][B]O3), controlling the composition of ions in the [A] position, and, by a solid-state single crystal growth method, may provide a single crystal having a uniform composition without a composition gradient, even in case of a complicated chemical composition, and especially, the piezoelectric single crystal of the present invention exhibits great resistance to mechanical impact and is provided so as to be easily machined and thus may be usefully applied in the fields of piezoelectric application parts and dielectric application parts using the piezoelectric single crystal, including an ultrasonic transducer, piezoelectric actuator, piezoelectric sensor and dielectric capacitor.
Inventors:
LEE HO YONG (KR)
BAICK WON SUN (KR)
KIM DONG HO (KR)
KIM MOON CHAN (KR)
BAICK WON SUN (KR)
KIM DONG HO (KR)
KIM MOON CHAN (KR)
Application Number:
PCT/KR2021/018537
Publication Date:
June 16, 2022
Filing Date:
December 08, 2021
Export Citation:
Assignee:
CERACOMP CO LTD (KR)
International Classes:
H01L41/18; H01L41/09; H01L41/113; H01L41/193
Foreign References:
| KR100743614B1 | 2007-07-30 | |||
| KR101779899B1 | 2017-09-19 | |||
| KR20120131193A | 2012-12-04 | |||
| US20090212667A1 | 2009-08-27 | |||
| US20150372219A1 | 2015-12-24 |
Attorney, Agent or Firm:
EO PATENT LAW FIRM (KR)
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