KR100816597B1 - 강유전체 캐패시터의 형성 방법, 강유전체 캐패시터 및전자 디바이스 - Google Patents
강유전체 캐패시터의 형성 방법, 강유전체 캐패시터 및전자 디바이스 Download PDFInfo
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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- 239000010937 tungsten Substances 0.000 description 1
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Abstract
Description
Claims (10)
- (a) 기체의 상방에 제1 도전층을 형성하는 단계,(b) 상기 제1 도전층 상에, 산소를 갖는 강유전체 물질을 포함하는 강유전체층을 형성하는 단계,(c) 상기 강유전체층 상에 제2 도전층을 형성하는 단계,(d) 상기 제2 도전층 상에 마스크를 형성하는 단계,(e) 상기 마스크를 이용하여, 적어도 상기 제2 도전층을 에칭함으로써, 상기 제1 도전층, 상기 강유전체층, 및 상기 제2 도전층으로 이루어지는 캐패시터를 형성하는 단계,(f) 상기 (e)의 공정 후에, 상기 기체를 불소를 포함하는 플라즈마 분위기에 노출시켜, 상기 에칭에 의해 노출된 상기 강유전체층의 노출면에 불소를 부착시키는 단계(g) 상기 캐패시터에 열 처리를 실시하는 단계를 포함하고,상기 강유전체층은, Pb(Zr, Ti)O3, SrBi2Ta2O9, Bi4Ti3O12, (Bi, La)4Ti3O12 중 적어도 1종을 포함하는 강유전체 캐패시터의 형성 방법.
- (a) 기체의 상방에 제1 도전층을 형성하는 단계,(b) 상기 제1 도전층 상에, 산소를 갖는 강유전체 물질을 포함하는 강유전체층을 형성하는 단계,(c) 상기 강유전체층 상에 제2 도전층을 형성하는 단계,(d) 상기 제2 도전층 상에 마스크를 형성하는 단계,(e) 상기 마스크를 이용하여, 적어도 상기 제2 도전층을 에칭함으로써, 상기 제1 도전층, 상기 강유전체층, 및 상기 제2 도전층으로 이루어지는 캐패시터를 형성하는 단계,(f) 상기 (e)의 공정 후에, 상기 기체를 불소를 포함하는 플라즈마 분위기에 노출시켜, 상기 강유전체 물질이 갖는 상기 산소의 적어도 일부를 불소로 치환하는 단계,(g) 상기 캐패시터에 열 처리를 실시하는 단계를 포함하고,상기 강유전체층은, Pb(Zr, Ti)O3, SrBi2Ta2O9, Bi4Ti3O12, (Bi, La)4Ti3O12 중 적어도 1종을 포함하는 강유전체 캐패시터의 형성 방법.
- 제1항 또는 제2항에 있어서,상기 (f)의 공정 전에, 산소 플라즈마 처리에 의해 상기 마스크를 제거하는 단계를 포함하는 강유전체 캐패시터의 형성 방법.
- 삭제
- 제3항에 있어서,상기 불소를 포함하는 플라즈마의 원료 가스는, CF4, C2F6 및 NF3 중 적어도 1종을 포함하는 강유전체 캐패시터의 형성 방법.
- 삭제
- 강유전체 캐패시터를 포함하는 전자 디바이스로서,상기 강유전체 캐패시터는 제3항의 강유전체 캐패시터의 형성 방법에 의해 형성되어 있는 전자 디바이스.
- 삭제
- 삭제
- 삭제
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JP2005135998A JP2006313833A (ja) | 2005-05-09 | 2005-05-09 | 強誘電体キャパシタの形成方法、強誘電体キャパシタおよび電子デバイス |
JPJP-P-2005-00135998 | 2005-05-09 |
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WO2007116442A1 (ja) | 2006-03-30 | 2007-10-18 | Fujitsu Limited | 半導体装置及びその製造方法 |
US20080170352A1 (en) * | 2007-01-15 | 2008-07-17 | Seiko Epson Corporation | Capacitor and its manufacturing method |
KR100984182B1 (ko) * | 2008-04-14 | 2010-09-28 | 삼성전자주식회사 | 비휘발성 메모리 장치 및 이의 제조 방법 |
JP5350174B2 (ja) * | 2009-10-16 | 2013-11-27 | Sppテクノロジーズ株式会社 | プラズマエッチング方法 |
JP5710711B2 (ja) * | 2013-08-21 | 2015-04-30 | Sppテクノロジーズ株式会社 | 基板製造方法 |
US9224592B2 (en) * | 2013-09-12 | 2015-12-29 | Texas Intruments Incorporated | Method of etching ferroelectric capacitor stack |
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KR960036048A (ko) * | 1995-03-20 | 1996-10-28 | 김광호 | 강유전성 캐패시터의 제조방법 |
US20030176073A1 (en) | 2002-03-12 | 2003-09-18 | Chentsau Ying | Plasma etching of Ir and PZT using a hard mask and C12/N2/O2 and C12/CHF3/O2 chemistry |
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2006
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- 2006-05-08 KR KR20060040886A patent/KR100816597B1/ko active IP Right Grant
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KR960036048A (ko) * | 1995-03-20 | 1996-10-28 | 김광호 | 강유전성 캐패시터의 제조방법 |
US20030176073A1 (en) | 2002-03-12 | 2003-09-18 | Chentsau Ying | Plasma etching of Ir and PZT using a hard mask and C12/N2/O2 and C12/CHF3/O2 chemistry |
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JP2006313833A (ja) | 2006-11-16 |
KR20060116160A (ko) | 2006-11-14 |
US7528034B2 (en) | 2009-05-05 |
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