JP6692202B2 - 基板処理方法及び基板処理装置 - Google Patents
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- 238000012545 processing Methods 0.000 title claims description 101
- 239000000758 substrate Substances 0.000 title claims description 57
- 238000003672 processing method Methods 0.000 title claims description 16
- 239000007789 gas Substances 0.000 claims description 172
- 238000000034 method Methods 0.000 claims description 149
- 230000008569 process Effects 0.000 claims description 145
- 239000011261 inert gas Substances 0.000 claims description 95
- 239000007795 chemical reaction product Substances 0.000 claims description 46
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 42
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 42
- 238000000859 sublimation Methods 0.000 claims description 32
- 230000008022 sublimation Effects 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 20
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 18
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 18
- 238000005092 sublimation method Methods 0.000 claims description 14
- 229910052736 halogen Inorganic materials 0.000 claims description 9
- 150000002367 halogens Chemical class 0.000 claims description 9
- 230000001131 transforming effect Effects 0.000 claims description 3
- 235000012431 wafers Nutrition 0.000 description 97
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 64
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 63
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 54
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 53
- 238000005530 etching Methods 0.000 description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 28
- 229910052786 argon Inorganic materials 0.000 description 27
- 229910001873 dinitrogen Inorganic materials 0.000 description 27
- 238000012546 transfer Methods 0.000 description 22
- 230000007246 mechanism Effects 0.000 description 16
- 238000011068 loading method Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 6
- 229920005591 polysilicon Polymers 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000004075 alteration Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- -1 ammonium fluorosilicate Chemical compound 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- LXPCOISGJFXEJE-UHFFFAOYSA-N oxifentorex Chemical compound C=1C=CC=CC=1C[N+](C)([O-])C(C)CC1=CC=CC=C1 LXPCOISGJFXEJE-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02046—Dry cleaning only
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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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/3105—After-treatment
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/67034—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for drying
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67248—Temperature monitoring
Description
(NH4)2SiF6(固体) → 2NH3↑+SiF4↑+2HF↑
10 基板処理システム
14 エッチング装置
25 チャンバ
58 昇華ガス
59 不活性ガスの流れ
60 不活性ガス貯蔵タンク
61 ヒータ
Claims (9)
- 窒化ケイ素膜が表面に形成された基板の前記表面に形成されたシリコン酸化膜を、前記窒化ケイ素膜に対して選択的に除去する基板処理方法であって、
処理室の内部に収容された前記基板に対してハロゲン元素含有ガス及び塩基性ガスを供給することにより、前記シリコン酸化膜を反応生成物に変質させる反応工程と、
前記処理室の内部への前記ハロゲン元素含有ガスの供給を停止することにより、前記反応生成物を昇華させて前記基板から除去する昇華工程と、を有し、
前記処理室の内部へ不活性ガスを供給することによって前記昇華工程における前記処理室の内部の圧力を、前記反応工程における前記処理室の内部の圧力よりも高くし、
前記昇華工程における前記処理室の内部への前記不活性ガスの供給量を、前記反応工程における前記処理室の内部への前記不活性ガスの供給量の3倍以上とすることを特徴とする基板処理方法。 - 前記反応工程と前記昇華工程が、複数回、繰り返し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。
- 前記昇華工程において前記処理室の内部へ供給される前記不活性ガスの温度を80℃以上に保つことを特徴とする請求項1又は2に記載の基板処理方法。
- 前記昇華工程において前記処理室の内部へ供給される前記不活性ガスの温度を120℃以上に保つことを特徴とする請求項3記載の基板処理方法。
- 前記昇華工程における前記処理室の内部の圧力と、前記反応工程における前記処理室の内部の圧力との差は4Torr以内であることを特徴とする請求項1乃至4のいずれか1項に記載の基板処理方法。
- 前記不活性ガスを予め貯蔵し、前記昇華工程において前記貯蔵された不活性ガスを前記処理室の内部へ供給することを特徴とする請求項1乃至5のいずれか1項に記載の基板処理方法。
- 基板を収容する処理室と、
ハロゲン元素含有ガス、塩基性ガス及び不活性ガスを選択的に前記処理室の内部へ供給するガス供給ユニットと、を備え、
前記ガス供給ユニットは、前記処理室の内部へ前記ハロゲン元素含有ガス及び前記塩基性ガスを供給することにより、前記処理室に収容された、窒化ケイ素膜が形成された基板に形成されたシリコン酸化膜を反応生成物に変質させる反応工程を実行し、さらに、前記処理室の内部への前記ハロゲン元素含有ガスの供給を停止することにより、前記反応生成物を昇華させて前記基板から除去する昇華工程を実行し、
前記ガス供給ユニットは、さらに、前記処理室の内部へ不活性ガスを供給することによって前記昇華工程における前記処理室の内部の圧力を、前記反応工程における前記処理室の内部の圧力よりも高くし、
前記ガス供給ユニットによる前記昇華工程における前記処理室の内部への前記不活性ガスの供給量を、前記反応工程における前記処理室の内部への前記不活性ガスの供給量の3倍以上とし、前記シリコン酸化膜を前記窒化ケイ素膜に対して選択的に除去することを特徴とする基板処理装置。 - 前記不活性ガスを加熱するガス加熱ユニットをさらに備え、
前記ガス加熱ユニットは、前記昇華工程において前記処理室の内部へ供給される前記不活性ガスの温度を80℃以上に保つことを特徴とする請求項7記載の基板処理装置。 - 前記不活性ガスを予め貯蔵するガス貯蔵ユニットをさらに備え、
前記ガス貯蔵ユニットは、前記昇華工程において前記貯蔵された不活性ガスを前記処理室の内部へ供給することを特徴とする請求項7又は8に記載の基板処理装置。
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JP2016078421A JP6692202B2 (ja) | 2016-04-08 | 2016-04-08 | 基板処理方法及び基板処理装置 |
TW106110342A TWI727023B (zh) | 2016-04-08 | 2017-03-28 | 基板處理方法及基板處理裝置 |
CN201710209577.7A CN107275184B (zh) | 2016-04-08 | 2017-03-31 | 基板处理方法和基板处理装置 |
US15/480,707 US20170294319A1 (en) | 2016-04-08 | 2017-04-06 | Substrate processing method and substrate processing apparatus |
KR1020170044829A KR102030232B1 (ko) | 2016-04-08 | 2017-04-06 | 기판 처리 방법 및 기판 처리 장치 |
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JP7224160B2 (ja) * | 2018-12-04 | 2023-02-17 | 東京エレクトロン株式会社 | 発光モニタ方法、基板処理方法、および基板処理装置 |
US10937659B2 (en) * | 2019-04-09 | 2021-03-02 | Tokyo Electron Limited | Method of anisotropically etching adjacent lines with multi-color selectivity |
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US20220020615A1 (en) * | 2020-07-19 | 2022-01-20 | Applied Materials, Inc. | Multiple process semiconductor processing system |
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TWI625785B (zh) * | 2016-03-02 | 2018-06-01 | 東京威力科創股份有限公司 | 具有可調節選擇性之等向性矽與矽化鍺蝕刻 |
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US20170294319A1 (en) | 2017-10-12 |
CN107275184A (zh) | 2017-10-20 |
US20190181015A1 (en) | 2019-06-13 |
KR20170115962A (ko) | 2017-10-18 |
KR102030232B1 (ko) | 2019-10-08 |
TWI727023B (zh) | 2021-05-11 |
JP2017188632A (ja) | 2017-10-12 |
TW201804526A (zh) | 2018-02-01 |
CN107275184B (zh) | 2021-03-12 |
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