KR100598747B1 - 강유전체막, 강유전체 메모리, 및 압전 소자 - Google Patents
강유전체막, 강유전체 메모리, 및 압전 소자 Download PDFInfo
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- KR100598747B1 KR100598747B1 KR1020050004837A KR20050004837A KR100598747B1 KR 100598747 B1 KR100598747 B1 KR 100598747B1 KR 1020050004837 A KR1020050004837 A KR 1020050004837A KR 20050004837 A KR20050004837 A KR 20050004837A KR 100598747 B1 KR100598747 B1 KR 100598747B1
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Abstract
Description
Claims (9)
- ABO3으로 나타내지는 페로브스카이트 구조 강유전체를 포함하는 강유전체막이고, A 사이트에 A 사이트 보상 이온으로서 Si2+, Ge2+ 및 Sn2+ 중 1종 이상을 포함하고, B 사이트에 B 사이트 보상 이온으로서 Nb5+를 포함하는 것을 특징으로 하는 강유전체막.
- 산소 이온 결손을 포함하는 ABO3으로 나타내지는 페로브스카이트 구조 강유전체를 포함하는 강유전체막이고, A 사이트에 A 사이트 보상 이온으로서 Si2+, Ge2+ 및 Sn2+ 중 1종 이상을 포함하고, B 사이트에 B 사이트 보상 이온으로서 Nb5+를 포함하며, 상기 A 사이트 보상 이온의 가수와 상기 B 사이트 보상 이온에 의한 B 사이트 전체에서의 과잉 가수의 합계는 상기 산소 이온 결손의 양에 대응하는 부족 가수와 동일하거나 또는 해당 부족 가수보다 작은 것을 특징으로 하는 강유전체막.
- 제2항에 있어서, 상기 산소 이온 결손의 양이 상기 페로브스카이트 구조 강유전체의 화학양론적 조성에 대하여 15 몰% 이하인 것을 특징으로 하는 강유전체막.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 A 사이트 첨가 이온의 함유량이 상기 페로브스카이트 구조 강유전체의 화학양론적 조성에 대하여 16 몰% 이하이고, 상기 B 사이트 첨가 이온의 함유량이 상기 페로브스카이트 구조 강유전체의 화학양론적 조성에 대하여 30 몰% 이하인 것을 특징으로 하는 강유전체막.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 페로브스카이트 구조 강유전체가 A 사이트 이온으로서 Pb2+를 포함하고, 또한 B 사이트 이온으로서 Zr4+ 및 Ti4+를 포함하는 PZT계 강유전체인 것을 특징으로 하는 강유전체막.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 페로브스카이트 구조 강유전체가 (111) 배향한 정방정을 포함하는 것을 특징으로 하는 강유전체막.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 페로브스카이트 구조 강유전체가 (001) 배향한 능면체정을 포함하는 것을 특징으로 하는 강유전체막.
- 제1항 내지 제3항 중 어느 한 항에 기재된 강유전체막을 포함하는 것을 특징으로 하는 강유전체 메모리.
- 제1항 내지 제3항 중 어느 한 항에 기재된 강유전체막을 포함하는 것을 특징 으로 하는 압전 소자.
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JPJP-P-2004-00012160 | 2004-01-20 | ||
JP2004012160A JP4171908B2 (ja) | 2004-01-20 | 2004-01-20 | 強誘電体膜、強誘電体メモリ、及び圧電素子 |
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US (1) | US20050167712A1 (ko) |
EP (1) | EP1557481A3 (ko) |
JP (1) | JP4171908B2 (ko) |
KR (1) | KR100598747B1 (ko) |
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JP4230720B2 (ja) * | 2002-05-28 | 2009-02-25 | 日本化学工業株式会社 | 誘電体セラミック原料粉末の製造方法 |
JP3791614B2 (ja) * | 2002-10-24 | 2006-06-28 | セイコーエプソン株式会社 | 強誘電体膜、強誘電体メモリ装置、圧電素子、半導体素子、圧電アクチュエータ、液体噴射ヘッド及びプリンタ |
JP4720969B2 (ja) * | 2003-03-28 | 2011-07-13 | セイコーエプソン株式会社 | 強誘電体膜、圧電体膜、強誘電体メモリ及び圧電素子 |
JP2005159308A (ja) * | 2003-11-05 | 2005-06-16 | Seiko Epson Corp | 強誘電体膜、強誘電体キャパシタ、および強誘電体メモリ |
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2004
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- 2005-01-14 US US11/035,129 patent/US20050167712A1/en not_active Abandoned
- 2005-01-19 KR KR1020050004837A patent/KR100598747B1/ko active IP Right Grant
- 2005-01-19 TW TW094101569A patent/TWI267188B/zh active
- 2005-01-20 EP EP05001099A patent/EP1557481A3/en not_active Withdrawn
- 2005-01-20 CN CNB2005100025230A patent/CN100463180C/zh active Active
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TW200531261A (en) | 2005-09-16 |
TWI267188B (en) | 2006-11-21 |
KR20050076654A (ko) | 2005-07-26 |
JP2005209722A (ja) | 2005-08-04 |
CN100463180C (zh) | 2009-02-18 |
JP4171908B2 (ja) | 2008-10-29 |
US20050167712A1 (en) | 2005-08-04 |
EP1557481A3 (en) | 2006-09-20 |
CN1645617A (zh) | 2005-07-27 |
EP1557481A2 (en) | 2005-07-27 |
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