KR20060072680A - 반도체 장치의 커패시터 및 그 제조방법 - Google Patents
반도체 장치의 커패시터 및 그 제조방법 Download PDFInfo
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- KR20060072680A KR20060072680A KR1020040111387A KR20040111387A KR20060072680A KR 20060072680 A KR20060072680 A KR 20060072680A KR 1020040111387 A KR1020040111387 A KR 1020040111387A KR 20040111387 A KR20040111387 A KR 20040111387A KR 20060072680 A KR20060072680 A KR 20060072680A
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Abstract
Description
Claims (23)
- 반도체 기판 상의 소정의 하부구조 상에 형성된 하부전극과;상기 하부전극 상에 형성되고, 낮은 누설전류 특성을 가지는 제 1 유전막과;상기 제 1 유전막 상에 형성되고, 상기 제 1 유전막에 비해 상대적으로 높은 유전율을 가지는 제 2 유전막과;상기 제 2 유전막 상에 형성된 상부전극을 포함하여 구성되는 반도체 장치의 커패시터.
- 제 1항에 있어서,상기 제 1 유전막은 AlON막(aluminium Oxi Nitride)인 반도체 장치의 커패시터.
- 제 2항에 있어서,상기 AlON막의 두께는 50~150[Å]인 반도체 장치의 커패시터.
- 제 1항에 있어서,상기 제 2 유전막은 YON(Yitrium Oxi Nitride)막인 반도체 장치의 커패시터.
- 제 4항에 있어서,상기 YON막의 두께는 10[Å] 이하인 반도체 장치의 커패시터.
- 제 1 항에 있어서,상기 하부전극은 도프트 실리콘막과 언도프트 실리콘막의 이중 구조로 된 반도체 장치의 커패시터.
- 제 1항에 있어서,상기 제 2 유전막과 상부전극 사이에 장벽층으로서 TiN층이 더 포함되는 반도체 장치의 커패시터.
- 반도체 기판 상의 소정의 하부구조 상에 하부전극을 형성하는 단계와;상기 하부전극 상에 낮은 누설전류 특성을 가지는 제 1 유전막을 형성하는 단계와;상기 제 1 유전막 상에 상기 제 1 유전막에 비해 상대적으로 높은 유전율을 가지는 제 2 유전막을 형성하는 단계와;상기 제 2 유전막 상에 상부전극을 형성하는 단계를 포함하여 구성되는 반도체 장치의 커패시터 제조방법.
- 제 8항에 있어서,상기 제 1 유전막은 AlON막인 반도체 장치의 커패시터 제조방법.
- 제 9항에 있어서,상기 AlON막의 두께는 50~150[Å]로 형성하는 반도체 장치의 커패시터 제조방법.
- 제 9항에 있어서,상기 AlON막은 PECVD(Plasma enhanced CVD)법을 이용하여 증착하는 반도체 장치의 커패시터 제조방법.
- 제 11항에 있어서,상기 PECVD법에 의한 증착시, 소스물질로는 (CH3)3Al을 사용하고, Al2O 3의 증착시 반응물질로는 H20 및 NH3를 사용하는 반도체 장치의 커패시터 제조방법.
- 제 12항에 있어서,웨이퍼의 온도는 200~450[℃]로 하고 증착시 반응로의 압력은 0.1~1.0[torr]로 하며, 상기 H2O의 사용량은 10~500sccm로 하고 상기 NH3의 사용량은 10~500sccm로 하는 반도체 장치의 커패시터 제조방법.
- 제 9항에 있어서,상기 AlON막의 형성 후, 상기 AlON막의 N2함량을 높이기 위해서 N2O 플라즈마 열처리(Plasma Anneal)을 실시하는 단계를 더 포함하는 반도체 장치의 커패시터 제조방법.
- 제 8항에 있어서,상기 제 2 유전막은 YON막인 반도체 장치의 커패시터 제조방법.
- 제 15항에 있어서,상기 YON막의 두께는 10[Å] 이하로 형성하는 반도체 장치의 커패시터 제조방법.
- 제 15항에 있어서,상기 YON막은 ALD(Atomic Layer Deposition)법에 의하여 형성하는 반도체 장치의 커패시터 제조방법.
- 제 17항에 있어서,ALD(Atomic Layer Deposition)법에 의한 증착시, 소스 가스인 이트륨(Yitrium) 가스를 반응원료인 NH3 가스 및 H2O 가스와 교대로 반응기에 주입하되, 상기 이트륨 가스와 NH3/H2O 가스의 주입 사이사이에 불활성 기체를 흘려주는 반도체 장치의 커패시터 제조방법.
- 제 18항에 있어서,상기 이트륨 가스와 NH3/H2O 가스 및 불활성 기체의 주입시간은 각각 0.1~10[sec]로 하고, 상기 NH3의 양은 10~100[sccm]으로 하고, 상기 H2O의 양은 10~100[sccm]으로 하며, 반응기의 온도는 250~350[℃]로 유지하는 반도체 장치의 커패시터 제조방법.
- 제 15항에 있어서,상기 YON막은 ICE(Ionized Cluster Beam) 증착법에 의하여 형성하는 반도체 장치의 커패시터 제조방법.
- 제 15항에 있어서,상기 YON막의 형성 후, 상기 YON막의 N2함량을 증가시키기 위해서 N2O 플라즈마 열처리를 실시하는 단계를 더 포함하는 반도체 장치의 커패시터 제조방법.
- 제 21항에 있어서,상기 N2O 플라즈마 열처리 후, 퍼니스 진공 N2 열처리(Furnace Vacuum N2 anneal) 또는 급속 열처리(RTP, rapid thermal processing}를 실시하는 단계를 더 포함하는 반도체 장치의 커패시터 제조방법.
- 제 8항에 있어서,상기 제 2 유전막의 향성 후, 장벽층으로서 TiN층을 증착하는 단계를 더 포함하는 반도체 장치의 커패시터 제조방법.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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KR1020040111387A KR20060072680A (ko) | 2004-12-23 | 2004-12-23 | 반도체 장치의 커패시터 및 그 제조방법 |
TW094128728A TWI299879B (en) | 2004-12-23 | 2005-08-23 | Capacitor for a semiconductor device and manufacturing method thereof |
US11/212,466 US7498628B2 (en) | 2004-12-23 | 2005-08-25 | Capacitor for a semiconductor device and manufacturing method thereof |
JP2005262060A JP2006179860A (ja) | 2004-12-23 | 2005-09-09 | 半導体装置のキャパシタ及びその製造方法 |
CNB2005101180892A CN100463186C (zh) | 2004-12-23 | 2005-10-25 | 用于半导体元件的电容器及其制造方法 |
US12/358,175 US7741671B2 (en) | 2004-12-23 | 2009-01-22 | Capacitor for a semiconductor device and manufacturing method thereof |
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KR1020040111387A KR20060072680A (ko) | 2004-12-23 | 2004-12-23 | 반도체 장치의 커패시터 및 그 제조방법 |
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US (2) | US7498628B2 (ko) |
JP (1) | JP2006179860A (ko) |
KR (1) | KR20060072680A (ko) |
CN (1) | CN100463186C (ko) |
TW (1) | TWI299879B (ko) |
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KR20060072680A (ko) * | 2004-12-23 | 2006-06-28 | 주식회사 하이닉스반도체 | 반도체 장치의 커패시터 및 그 제조방법 |
US7611972B2 (en) * | 2006-11-29 | 2009-11-03 | Qimonda North America Corp. | Semiconductor devices and methods of manufacture thereof |
JP2009260325A (ja) * | 2008-03-26 | 2009-11-05 | Univ Of Tokyo | 半導体基板、半導体基板の製造方法および半導体装置 |
SG2014008239A (en) * | 2011-08-10 | 2014-03-28 | Entegris Inc | Aion coated substrate with optional yttria overlayer |
CN103594343A (zh) * | 2012-08-13 | 2014-02-19 | 中芯国际集成电路制造(上海)有限公司 | 高k膜的制作方法及晶体管的形成方法 |
US8912890B2 (en) * | 2012-10-01 | 2014-12-16 | Thin Film Electronics Asa | Surveillance devices with multiple capacitors |
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- 2005-08-25 US US11/212,466 patent/US7498628B2/en not_active Expired - Fee Related
- 2005-09-09 JP JP2005262060A patent/JP2006179860A/ja active Pending
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TW200623213A (en) | 2006-07-01 |
US7498628B2 (en) | 2009-03-03 |
US7741671B2 (en) | 2010-06-22 |
US20060138514A1 (en) | 2006-06-29 |
JP2006179860A (ja) | 2006-07-06 |
CN1794456A (zh) | 2006-06-28 |
CN100463186C (zh) | 2009-02-18 |
US20090122461A1 (en) | 2009-05-14 |
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