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Patent Searching and Data


Title:
PIEZOELECTRIC MATERIAL COLUMN AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/027268
Kind Code:
A1
Abstract:
The present invention relates to: a piezoelectric material column characterized in that the sintering density at one end portion of a sintered piezoelectric material column is higher than the sintering density at the other end portion thereof; and a piezoelectric material column manufacturing method comprising a mold preparation step of preparing a mold having a plurality of filling holes, a filling step of filling, by means of high gas spray pressure, the filling holes of the mold from the bottom surfaces thereof with particles of a piezoelectric material, and a sintering step of quickly and thermally treating the piezoelectric material filled in the filling holes of the mold and sintering the same.

Inventors:
KIM, Kyoung Kook (1006-304, 156 Yeongtong-ro 200beon-gil, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16694, KR)
KIM, Si Won (1004-601, 95 Convensia-daero 42beon-gil,Yeonsu-gu, Incheon, 22001, KR)
NOH, Beom Rae (102-408, 8 Songi-ro 19-gil,Songpa-gu, Seoul, 05716, KR)
JO, Ji Yeon (212-1207, 381 Hyoseo-ro,Gyeyang-gu, Incheon, 21125, KR)
CHOI, Hee Jung (4F 128, Naengcheon-ro Manan-gu,Anyang-si, Gyeonggi-do, 14030, KR)
CHU, Eun Kyung (B01 57-1, Sincheoncheondong-roSiheung-si, Gyeonggi-do, 14949, KR)
AHN, Bum Mo (5104-1502, 35 Edu town-ro, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16509, KR)
PARK, Seung Ho (403-1001, 39 Haengjeongjungang 1-ro, Hyangnam-eup,Hwaseong-si, Gyeonggi-do, 18599, KR)
Application Number:
KR2018/008779
Publication Date:
February 07, 2019
Filing Date:
August 02, 2018
Export Citation:
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Assignee:
POINT ENGINEERING CO., LTD. (89 Asanvalley-ro, Dunpo-myeonAsan-si, Chungcheongnam-do, 31409, KR)
International Classes:
H01L41/333; H01L21/56; H01L41/187; H01L41/39; H01L41/43
Attorney, Agent or Firm:
CHOI, Kwang Seok (1905, Samhomulsan B 87, Nonhyeon-ro,Seocho-gu, Seoul, 06775, KR)
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