JP2005244176A - 半導体素子の酸化膜形成方法 - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 239000004065 semiconductor Substances 0.000 title claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 title claims abstract 6
- 239000007789 gas Substances 0.000 claims abstract description 57
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 29
- 239000010703 silicon Substances 0.000 claims abstract description 29
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000011261 inert gas Substances 0.000 claims abstract description 17
- 230000005527 interface trap Effects 0.000 claims abstract description 12
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001882 dioxygen Inorganic materials 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims description 21
- 238000007254 oxidation reaction Methods 0.000 claims description 21
- 238000000137 annealing Methods 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 abstract description 4
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 4
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005524 hole trap Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02164—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon oxide, e.g. SiO2
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- H01L21/02107—Forming insulating materials on a substrate
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- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/0223—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate
- H01L21/02233—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer
- H01L21/02236—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor
- H01L21/02238—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor silicon in uncombined form, i.e. pure silicon
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
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- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/3165—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation
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- H01L21/31658—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation of semiconductor materials, e.g. the body itself by thermal oxidation, e.g. of SiGe
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Abstract
【解決手段】 自然酸化膜の除去されたシリコン基板を提供する段階と、酸化工程を行って前記シリコン基板上に酸化膜を形成する段階と、前記酸化膜の内部に存在するトラップチャージを減少させるために不活性ガスと酸素ガスとの混合ガス雰囲気の下で高温熱処理工程を行う段階とを含むことを特徴とする。
【選択図】 図2
Description
110…酸化膜
Claims (10)
- 自然酸化膜の除去されたシリコン基板を提供する段階と、
酸化工程を行って前記シリコン基板上に酸化膜を形成する段階と、
前記酸化膜の内部に存在するトラップチャージを減少させるために不活性ガスと酸素ガスとの混合雰囲気の下で高温熱処理工程を行う段階とを含むことを特徴とする半導体素子の酸化膜形成方法。 - 前記酸化膜の形成後に、前記シリコン基板と前記酸化膜間のインタフェーストラップチャージを減少させるための前処理熱工程を行う段階をさらに含むことを特徴とする請求項1記載の半導体素子の酸化膜形成方法。
- 前記前処理熱工程は、850℃以上、且つ950℃以下の温度とN2OガスまたはNOガスの雰囲気下で約5分間以上、且つ15分間以下行うアニーリングであることを特徴とする請求項2記載の半導体素子の酸化膜形成方法。
- 前記高温熱処理工程は、950℃以上、且つ1100℃以下の温度及び不活性ガスと酸素ガスとの混合ガス雰囲気の下で5分間以上、且つ15分間以下行うことを特徴とする請求項1記載の半導体素子の酸化膜形成方法。
- 前記酸化工程は、水素と酸素を高温で反応させて蒸気に作った後、前記シリコン基板の表面に噴射して行うか、或いは前記蒸気に塩素が含まれたTCAガスまたはTCEガスを共に注入して行うことを特徴とする請求項1記載の半導体素子の酸化膜形成方法。
- シリコン基板をチャンバーの内部にロードした後、前記チャンバーの内部温度が第1温度となるように第1ランプアップを行う段階と、
前記第1温度の下で酸化工程を行って前記シリコン基板上に酸化膜を形成する段階と、
前記チャンバーの内部温度が第2温度となるように第2ランプアップを行う段階と、
前記第2温度と窒素ガス雰囲気の下で前処理熱工程を行う段階と、
前記チャンバーの内部温度が第3温度となるように第3ランプアップを行う段階と、
前記第3温度及び不活性ガスと酸素ガスとの混合ガス雰囲気の下で高温熱処理工程を行う段階と、
前記チャンバーの内部温度がアンローディング温度となるようにランプダウンした後、前記シリコン基板を前記チャンバーの外部にアンロードする段階とを含む半導体素子の酸化膜形成方法。 - 前記前処理熱工程は、
前記チャンバー内部の温度安定化のために約4分間以上、且つ6分間以下、N2ガス雰囲気の下で安定化する段階と、
N2OガスまたはNOガス雰囲気の下で約5分間以上、且つ15分間以下、アニーリングを行う段階と、
N2ガス雰囲気の下で4分間以上、且つ6分間以下、ポストアニーリングを行う段階とを含むことを特徴とする請求項6記載の半導体素子の酸化膜形成方法。 - 前記高温熱処理工程は、N2ガスとO2ガスとの混合ガス雰囲気またはArガスとO2ガスとの混合ガス雰囲気の下で5分間以上、且つ15分間以下行うことを特徴とする請求項6記載の半導体素子の酸化膜形成方法。
- 前記第1ランプアップは、3℃/min以上、且つ10℃/min以下のランプアップ速度で行い、前記第2ランプアップはN2ガス雰囲気の下で3℃/min以上、且つ10℃/min以下のランプアップ速度で20分間以上、且つ40分間以下行い、前記第3ランプアップは3℃/min以上、且つ10℃/min以下のランプアップ速度で4分間以上、且つ6分間以下行うことを特徴とする請求項6記載の半導体素子の酸化膜形成方法。
- 前記第1温度は、700℃以上、且つ800℃以下であり、前記第2温度は850℃以上、且つ950℃以下であり、前記第3温度は950℃以上、且つ1100℃以下であることを特徴とする請求項6記載の半導体素子の酸化膜形成方法。
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KR2004-011754 | 2004-02-23 | ||
KR10-2004-0011754A KR100537554B1 (ko) | 2004-02-23 | 2004-02-23 | 반도체 소자의 산화막 형성 방법 |
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JP2005244176A true JP2005244176A (ja) | 2005-09-08 |
JP4768986B2 JP4768986B2 (ja) | 2011-09-07 |
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Country | Link |
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US (1) | US7368400B2 (ja) |
JP (1) | JP4768986B2 (ja) |
KR (1) | KR100537554B1 (ja) |
CN (1) | CN100399519C (ja) |
DE (1) | DE102004060440A1 (ja) |
TW (1) | TWI262559B (ja) |
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WO2006082468A1 (en) * | 2005-02-03 | 2006-08-10 | S.O.I.Tec Silicon On Insulator Technologies | Method for high-temperature annealing a multilayer wafer |
KR100695004B1 (ko) * | 2005-11-01 | 2007-03-13 | 주식회사 하이닉스반도체 | 반도체 소자의 산화막 형성 방법 |
KR100818426B1 (ko) * | 2006-08-31 | 2008-04-01 | 동부일렉트로닉스 주식회사 | 산화막 하드 마스크 피트 결함 방지 방법 |
US7592274B2 (en) * | 2006-09-29 | 2009-09-22 | Oki Semiconductor Co., Ltd. | Method for fabricating semiconductor element |
GB2499816A (en) | 2012-02-29 | 2013-09-04 | Oxford Instr Nanotechnology Tools Ltd | Controlling deposition and etching in a chamber with fine time control of parameters and gas flow |
US20140342473A1 (en) * | 2013-05-14 | 2014-11-20 | United Microelectronics Corp. | Semiconductor processing method |
CN105185700B (zh) * | 2015-08-11 | 2018-05-29 | 上海华力微电子有限公司 | 超薄栅氧的制备方法 |
CN106548937B (zh) * | 2015-09-18 | 2019-06-25 | 上海先进半导体制造股份有限公司 | 退火的工艺方法 |
CN106206266B (zh) * | 2016-07-22 | 2020-02-04 | 上海芯导电子科技有限公司 | 一种推阱工艺 |
US9954176B1 (en) | 2016-10-06 | 2018-04-24 | International Business Machines Corporation | Dielectric treatments for carbon nanotube devices |
CN109004063B (zh) * | 2018-07-06 | 2020-06-09 | 横店集团东磁股份有限公司 | 一种晶硅太阳电池的热氧化方法 |
CN110473780B (zh) * | 2019-08-30 | 2021-12-10 | 上海华力微电子有限公司 | 改善栅极氧化层的方法及半导体器件的制造方法 |
CN113026002A (zh) * | 2021-03-03 | 2021-06-25 | 陕西雷翔新材料科技有限公司 | 一种薄膜金属氧化物结构及其制造方法 |
CN116959961A (zh) * | 2023-08-22 | 2023-10-27 | 中环领先半导体材料有限公司 | 一种晶圆及其制备方法 |
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- 2004-02-23 KR KR10-2004-0011754A patent/KR100537554B1/ko active IP Right Grant
- 2004-12-09 US US11/007,181 patent/US7368400B2/en active Active
- 2004-12-10 TW TW093138242A patent/TWI262559B/zh not_active IP Right Cessation
- 2004-12-14 DE DE102004060440A patent/DE102004060440A1/de not_active Ceased
- 2004-12-22 JP JP2004370804A patent/JP4768986B2/ja not_active Expired - Fee Related
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2005
- 2005-01-19 CN CNB2005100038813A patent/CN100399519C/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN100399519C (zh) | 2008-07-02 |
US7368400B2 (en) | 2008-05-06 |
US20050186806A1 (en) | 2005-08-25 |
KR20050083281A (ko) | 2005-08-26 |
JP4768986B2 (ja) | 2011-09-07 |
CN1661782A (zh) | 2005-08-31 |
DE102004060440A1 (de) | 2005-09-08 |
TWI262559B (en) | 2006-09-21 |
KR100537554B1 (ko) | 2005-12-16 |
TW200529323A (en) | 2005-09-01 |
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