JP4795407B2 - 基板処理方法 - Google Patents
基板処理方法 Download PDFInfo
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- JP4795407B2 JP4795407B2 JP2008222163A JP2008222163A JP4795407B2 JP 4795407 B2 JP4795407 B2 JP 4795407B2 JP 2008222163 A JP2008222163 A JP 2008222163A JP 2008222163 A JP2008222163 A JP 2008222163A JP 4795407 B2 JP4795407 B2 JP 4795407B2
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- 239000000758 substrate Substances 0.000 title claims description 54
- 238000003672 processing method Methods 0.000 title claims description 8
- 238000012545 processing Methods 0.000 claims description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 32
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 21
- 239000010703 silicon Substances 0.000 claims description 21
- 150000002831 nitrogen free-radicals Chemical class 0.000 claims description 7
- -1 nitrogen ions Chemical class 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 description 29
- 239000007789 gas Substances 0.000 description 14
- 238000009826 distribution Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- 229910052814 silicon oxide Inorganic materials 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 150000003254 radicals Chemical class 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910017840 NH 3 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004335 scaling law Methods 0.000 description 1
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- H—ELECTRICITY
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- 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
- H01L21/31654—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation of semiconductor materials, e.g. the body itself
- 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
- H01L21/31662—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 of silicon in uncombined form
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- H—ELECTRICITY
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
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- H—ELECTRICITY
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- H01J37/32—Gas-filled discharge tubes
- H01J37/32917—Plasma diagnostics
- H01J37/32935—Monitoring and controlling tubes by information coming from the object and/or discharge
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- H01L21/02104—Forming layers
- 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
- 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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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- 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
- H01L21/02252—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 plasma treatment, e.g. plasma oxidation of the substrate
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
- H01L21/02321—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer
- H01L21/02329—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer introduction of nitrogen
- H01L21/02332—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer introduction of nitrogen into an oxide layer, e.g. changing SiO to SiON
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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
- H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
- H01L21/02337—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour
- H01L21/0234—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour treatment by exposure to a plasma
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/314—Inorganic layers
- H01L21/3143—Inorganic layers composed of alternated layers or of mixtures of nitrides and oxides or of oxinitrides, e.g. formation of oxinitride by oxidation of nitride layers
- H01L21/3144—Inorganic layers composed of alternated layers or of mixtures of nitrides and oxides or of oxinitrides, e.g. formation of oxinitride by oxidation of nitride layers on silicon
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—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
- H01L21/02247—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 nitridation, e.g. nitridation of the substrate
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Formation Of Insulating Films (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
[第1実施例]
図1は、本発明で使われるプラズマ基板処理装置10の概略的構成を示す。
Claims (4)
- 酸化膜を有するシリコン基板の前記酸化膜の厚さが1.6nm以上であるか否かを判定する工程と、
前記判定の結果、前記酸化膜の厚さが1.6nm以上であるシリコン基板を処理容器内に準備する工程と、
前記処理容器内にArと窒素を供給して、該処理容器内にプラズマを形成する工程と、
前記酸化膜を、前記プラズマ中において励起された窒素ラジカルあるいは窒素イオンに曝露し、前記酸化膜中に窒素原子を導入する工程と、を備え、
前記酸化膜中に窒素原子を導入する工程は、前記処理容器内が5Pa以上60Pa以下の処理圧力下で前記酸化膜を前記窒素ラジカル又は窒素イオンに曝露することにより、窒素を前記酸化膜に導入することを特徴とする基板処理方法。 - 前記窒素を導入する工程は、前記処理圧力が5Pa以上30Pa以下で実行されることを特徴とする請求項1記載の基板処理方法。
- 前記窒素を導入する工程は、前記シリコン基板の温度が550℃以下で実行されることを特徴とする請求項1または2記載の基板処理方法。
- 前記プラズマは、平面アンテナによりマイクロ波を供給して前記酸化膜上に生成されることを特徴とする請求項1〜3のうち、いずれか一項記載の基板処理方法。
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JP2008222163A JP4795407B2 (ja) | 2002-05-16 | 2008-08-29 | 基板処理方法 |
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JP2002141654 | 2002-05-16 | ||
JP2002141654 | 2002-05-16 | ||
JP2008222163A JP4795407B2 (ja) | 2002-05-16 | 2008-08-29 | 基板処理方法 |
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JP2004506074A Division JP4256340B2 (ja) | 2002-05-16 | 2003-05-15 | 基板処理方法 |
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JP2008288620A JP2008288620A (ja) | 2008-11-27 |
JP4795407B2 true JP4795407B2 (ja) | 2011-10-19 |
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JP2004506074A Expired - Fee Related JP4256340B2 (ja) | 2002-05-16 | 2003-05-15 | 基板処理方法 |
JP2008222163A Expired - Fee Related JP4795407B2 (ja) | 2002-05-16 | 2008-08-29 | 基板処理方法 |
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US (3) | US7232772B2 (ja) |
JP (2) | JP4256340B2 (ja) |
AU (1) | AU2003231516A1 (ja) |
TW (1) | TW200405582A (ja) |
WO (1) | WO2003098678A1 (ja) |
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JP4256340B2 (ja) * | 2002-05-16 | 2009-04-22 | 東京エレクトロン株式会社 | 基板処理方法 |
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JP4408653B2 (ja) * | 2003-05-30 | 2010-02-03 | 東京エレクトロン株式会社 | 基板処理方法および半導体装置の製造方法 |
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JP2006245528A (ja) * | 2005-02-01 | 2006-09-14 | Tohoku Univ | 誘電体膜及びその形成方法 |
JP2006253311A (ja) * | 2005-03-09 | 2006-09-21 | Toshiba Corp | 半導体装置及びその製造方法 |
JP4974585B2 (ja) * | 2006-05-17 | 2012-07-11 | 東京エレクトロン株式会社 | 窒素濃度の測定方法、シリコン酸窒化膜の形成方法および半導体装置の製造方法 |
WO2010117703A2 (en) * | 2009-03-31 | 2010-10-14 | Applied Materials, Inc. | Method of selective nitridation |
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JP2004152929A (ja) * | 2002-10-30 | 2004-05-27 | Nec Electronics Corp | 半導体装置及びその製造方法 |
JP4694108B2 (ja) | 2003-05-23 | 2011-06-08 | 東京エレクトロン株式会社 | 酸化膜形成方法、酸化膜形成装置および電子デバイス材料 |
JP4408653B2 (ja) | 2003-05-30 | 2010-02-03 | 東京エレクトロン株式会社 | 基板処理方法および半導体装置の製造方法 |
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US7429539B2 (en) | 2008-09-30 |
JPWO2003098678A1 (ja) | 2005-09-22 |
US20050176223A1 (en) | 2005-08-11 |
US20090035950A1 (en) | 2009-02-05 |
TW200405582A (en) | 2004-04-01 |
JP4256340B2 (ja) | 2009-04-22 |
AU2003231516A1 (en) | 2003-12-02 |
JP2008288620A (ja) | 2008-11-27 |
WO2003098678A1 (fr) | 2003-11-27 |
TWI325184B (ja) | 2010-05-21 |
US7232772B2 (en) | 2007-06-19 |
US20070134895A1 (en) | 2007-06-14 |
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