KR20040068964A - 식각정지층으로서 폴리 재산화층을 사용하여 실리콘리세스를 최소로 한 질화물 오프셋 스페이서 - Google Patents
식각정지층으로서 폴리 재산화층을 사용하여 실리콘리세스를 최소로 한 질화물 오프셋 스페이서 Download PDFInfo
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- KR20040068964A KR20040068964A KR10-2004-7009735A KR20047009735A KR20040068964A KR 20040068964 A KR20040068964 A KR 20040068964A KR 20047009735 A KR20047009735 A KR 20047009735A KR 20040068964 A KR20040068964 A KR 20040068964A
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- 238000010405 reoxidation reaction Methods 0.000 title claims abstract description 49
- 150000004767 nitrides Chemical class 0.000 title claims abstract description 40
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 title abstract description 18
- 239000010703 silicon Substances 0.000 title abstract description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract description 17
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 59
- 229920005591 polysilicon Polymers 0.000 claims abstract description 59
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 238000005530 etching Methods 0.000 claims abstract description 31
- 239000004065 semiconductor Substances 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 125000001475 halogen functional group Chemical group 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 22
- 238000002513 implantation Methods 0.000 claims description 18
- 239000007943 implant Substances 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 5
- 238000001020 plasma etching Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- 241000243321 Cnidaria Species 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- -1 silicon nitrides Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
Description
Claims (10)
- 기판(20) 상에 게이트 전극(22)을 형성하는 단계와,상기 기판(20) 및 상기 게이트 전극(22) 상에 폴리실리콘 재산화층(26)을 형성하는 단계와,상기 폴리실리콘 재산화층(26) 상에 질화물층(28)을 증착하는 단계와,상기 질화물층(28)을 이방성 식각하고 폴리실리콘 재산화층(26) 상에서 정지시켜 상기 게이트 전극(22) 상에 질화물 오프셋 스페이서(30)를 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1항에 있어서,상기 질화물층(28)을 식각한 후 상기 기판(20) 내에 소스/드레인 연장부(36)를 형성하는 단계와, 상기 오프셋 스페이서(30) 상에 측벽 스페이서(38)를 형성하는 단계와, 상기 기판(20) 내에 소스/드레인(40)을 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 2항에 있어서,상기 질화물층(28)을 증착하기 전 상기 기판(20) 내에 할로 주입(24)을 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 3항에 있어서,상기 폴리실리콘 재산화층을 형성하는 단계는 상기 기판 및 상기 게이트 전극 상에 700-900℃ 온도로 산화물을 열적 성장시키는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 4항에 있어서,상기 질화물층(28)을 식각한 후 그리고 상기 기판(20) 내에 소스/드레인 연장부(36)를 형성하기 전 노출된 폴리실리콘 재산화층을 제거하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 할로 주입이 있는 반도체를 제조하는 방법에 있어서,기판(20) 상에 게이트 전극(22)을 형성하는 단계와,상기 기판(20)에 식각정지층(26)을 형성하는 단계와,상기 식각정지층(26)에 질화물층(28)을 형성하는 단계와,상기 질화물층(28)을 식각하여 상기 게이트 전극(22) 상에 오프셋 스페이서(30)를 형성하고, 상기 식각정지층(26) 상에서 식각을 정지하는 단계와,상기 기판(20) 내에 할로 주입(24)을 형성하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 6항에 있어서,상기 식각정지층(26)은 폴리실리콘 재산화층(26)인 것을 특징으로 하는 방법.
- 제 7항에 있어서,상기 질화물층(28)이 식각된 후 상기 폴리실리콘 재산화층(26)을 통한 주입에 의해 소스/드레인 연장부(36) 및 소스/드레인 주입(40)을 형성하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 8항에 있어서,상기 질화물층(28)의 식각에 의해 노출된 폴리실리콘 재산화층(26)의 부분을 제거하여 상기 기판(20)을 노출시키는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 9항에 있어서,상기 질화물층(28)을 식각하는 단계는 질화물 대 산화물 선택성이 높은 플라즈마 식각 가스로 상기 질화물층(28)을 반응성 이온 식각하는 것을 특징으로 하는 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/023,328 US6780776B1 (en) | 2001-12-20 | 2001-12-20 | Nitride offset spacer to minimize silicon recess by using poly reoxidation layer as etch stop layer |
US10/023,328 | 2001-12-20 | ||
PCT/US2002/041105 WO2003054948A1 (en) | 2001-12-20 | 2002-12-19 | Nitride offset spacer to minimize silicon recess by using poly reoxidation layer as etch stop layer |
Publications (2)
Publication Number | Publication Date |
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KR20040068964A true KR20040068964A (ko) | 2004-08-02 |
KR100945915B1 KR100945915B1 (ko) | 2010-03-05 |
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KR1020047009735A KR100945915B1 (ko) | 2001-12-20 | 2002-12-19 | 식각 정지층으로서 폴리 재산화층을 사용함으로써 실리콘 리세스를 최소화하기 위한 질화물 오프셋 스페이서 |
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US (1) | US6780776B1 (ko) |
EP (1) | EP1456874A1 (ko) |
JP (1) | JP2005514765A (ko) |
KR (1) | KR100945915B1 (ko) |
CN (1) | CN100367470C (ko) |
AU (1) | AU2002358271A1 (ko) |
WO (1) | WO2003054948A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100721200B1 (ko) * | 2005-12-22 | 2007-05-23 | 주식회사 하이닉스반도체 | 반도체소자의 듀얼 게이트 형성방법 |
US7732280B2 (en) | 2007-02-26 | 2010-06-08 | Samsung Electronics Co., Ltd. | Semiconductor device having offset spacer and method of forming the same |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009527103A (ja) * | 2006-02-14 | 2009-07-23 | エス テ マイクロエレクトロニクス クロル 2 エス アー エス | 閾値が調整可能なmosトランジスタ |
US7544561B2 (en) * | 2006-11-06 | 2009-06-09 | Taiwan Semiconductor Manufacturing Company, Ltd. | Electron mobility enhancement for MOS devices with nitrided polysilicon re-oxidation |
JP2008098640A (ja) * | 2007-10-09 | 2008-04-24 | Toshiba Corp | 半導体装置の製造方法 |
US8854403B2 (en) * | 2009-02-06 | 2014-10-07 | Xerox Corporation | Image forming apparatus with a TFT backplane for xerography without a light source |
JP5368584B2 (ja) | 2009-12-24 | 2013-12-18 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
CN108206160B (zh) * | 2016-12-20 | 2020-11-03 | 中芯国际集成电路制造(上海)有限公司 | 一种半导体器件及其制造方法和电子装置 |
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GB2219434A (en) | 1988-06-06 | 1989-12-06 | Philips Nv | A method of forming a contact in a semiconductor device |
JPH0817235B2 (ja) * | 1990-08-29 | 1996-02-21 | 株式会社東芝 | オフセットゲート構造トランジスタおよびその製造方法 |
US5171700A (en) * | 1991-04-01 | 1992-12-15 | Sgs-Thomson Microelectronics, Inc. | Field effect transistor structure and method |
JP3238551B2 (ja) * | 1993-11-19 | 2001-12-17 | 沖電気工業株式会社 | 電界効果型トランジスタの製造方法 |
US5783475A (en) * | 1995-11-13 | 1998-07-21 | Motorola, Inc. | Method of forming a spacer |
US5670404A (en) | 1996-06-21 | 1997-09-23 | Industrial Technology Research Institute | Method for making self-aligned bit line contacts on a DRAM circuit having a planarized insulating layer |
US5899719A (en) * | 1997-02-14 | 1999-05-04 | United Semiconductor Corporation | Sub-micron MOSFET |
US6063698A (en) * | 1997-06-30 | 2000-05-16 | Motorola, Inc. | Method for manufacturing a high dielectric constant gate oxide for use in semiconductor integrated circuits |
US5912188A (en) | 1997-08-04 | 1999-06-15 | Advanced Micro Devices, Inc. | Method of forming a contact hole in an interlevel dielectric layer using dual etch stops |
US6165831A (en) | 1998-11-20 | 2000-12-26 | United Microelectronics Corp. | Method of fabricating a buried contact in a static random access memory |
US6187645B1 (en) | 1999-01-19 | 2001-02-13 | United Microelectronics Corp. | Method for manufacturing semiconductor device capable of preventing gate-to-drain capacitance and eliminating birds beak formation |
US6294432B1 (en) | 1999-12-20 | 2001-09-25 | United Microelectronics Corp. | Super halo implant combined with offset spacer process |
TW463251B (en) * | 2000-12-08 | 2001-11-11 | Macronix Int Co Ltd | Manufacturing method of gate structure |
-
2001
- 2001-12-20 US US10/023,328 patent/US6780776B1/en not_active Expired - Lifetime
-
2002
- 2002-12-19 KR KR1020047009735A patent/KR100945915B1/ko active IP Right Grant
- 2002-12-19 EP EP02792509A patent/EP1456874A1/en not_active Withdrawn
- 2002-12-19 AU AU2002358271A patent/AU2002358271A1/en not_active Abandoned
- 2002-12-19 JP JP2003555572A patent/JP2005514765A/ja active Pending
- 2002-12-19 WO PCT/US2002/041105 patent/WO2003054948A1/en active Application Filing
- 2002-12-19 CN CNB028257359A patent/CN100367470C/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100721200B1 (ko) * | 2005-12-22 | 2007-05-23 | 주식회사 하이닉스반도체 | 반도체소자의 듀얼 게이트 형성방법 |
US7732280B2 (en) | 2007-02-26 | 2010-06-08 | Samsung Electronics Co., Ltd. | Semiconductor device having offset spacer and method of forming the same |
Also Published As
Publication number | Publication date |
---|---|
CN1606798A (zh) | 2005-04-13 |
AU2002358271A1 (en) | 2003-07-09 |
WO2003054948A1 (en) | 2003-07-03 |
EP1456874A1 (en) | 2004-09-15 |
US6780776B1 (en) | 2004-08-24 |
CN100367470C (zh) | 2008-02-06 |
KR100945915B1 (ko) | 2010-03-05 |
JP2005514765A (ja) | 2005-05-19 |
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