JP7394665B2 - 基板処理方法及び基板処理装置 - Google Patents
基板処理方法及び基板処理装置 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims description 61
- 238000003672 processing method Methods 0.000 title claims description 15
- 239000007789 gas Substances 0.000 claims description 146
- 238000005530 etching Methods 0.000 claims description 56
- 229910052710 silicon Inorganic materials 0.000 claims description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 30
- 239000010703 silicon Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 23
- 239000012495 reaction gas Substances 0.000 claims description 21
- 229910052732 germanium Inorganic materials 0.000 claims description 15
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 10
- 239000007795 chemical reaction product Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 claims description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 5
- 150000003376 silicon Chemical class 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 3
- 229910052681 coesite Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 229920005591 polysilicon Polymers 0.000 claims description 3
- 229910052682 stishovite Inorganic materials 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- 229910000039 hydrogen halide Inorganic materials 0.000 claims 1
- 239000012433 hydrogen halide Substances 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 238000010926 purge Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 18
- 235000012431 wafers Nutrition 0.000 description 13
- 238000005192 partition Methods 0.000 description 12
- 229910004298 SiO 2 Inorganic materials 0.000 description 10
- 238000001020 plasma etching Methods 0.000 description 10
- 239000010453 quartz Substances 0.000 description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 7
- 150000002431 hydrogen Chemical class 0.000 description 6
- -1 hydrogen halides Chemical class 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000005121 nitriding Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004334 fluoridation Methods 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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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 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
- H01L21/3105—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
-
- 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 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
- H01L21/32137—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas of silicon-containing layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01J37/32431—Constructional details of the reactor
- H01J37/3244—Gas supply means
- H01J37/32449—Gas control, e.g. control of the gas flow
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01J37/32091—Radio frequency generated discharge the radio frequency energy being capacitively coupled to the plasma
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01J37/32431—Constructional details of the reactor
- H01J37/3244—Gas supply means
-
- 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 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
- H01L21/302—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
- H01L21/67—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
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- Plasma & Fusion (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Drying Of Semiconductors (AREA)
Description
本実施形態に係るプラズマ処理装置(基板処理装置)100について、図1を用いて説明する。図1は、プラズマ処理装置100の構成例を示す概略図である。
温度:25~400℃
圧力:0.1~50.0Torr
HFガス流量:100~5000sccm
NH3ガス流量:1000~10000sccm
N2ガス流量:50~10000sccm
工程S201時間:5.0~180秒
工程S202時間:5.0~60秒
工程S203時間:5.0~300秒
工程S204時間:5.0~60秒
RFパワー:50~500W
100 プラズマ処理装置(基板処理装置)
1 処理容器
2 天井板
20 ガス供給部
21,22,24 ガス供給管
21 ガス供給管
22 ガス供給管
22g ガス孔
24 ガス供給管
21a エッチャントガス供給源
22a,23a 反応ガス供給源
30 プラズマ生成機構(高周波電力供給部)
44 排気装置
50 加熱機構
60 制御部
Claims (8)
- 基板に形成されたエッチング対象膜をエッチングする基板処理方法であって、
前記エッチング対象膜を有する前記基板を準備する工程と、
前記エッチング対象膜をエッチングする工程と、を有し、
前記エッチング対象膜をエッチングする工程は、
エッチャントガスを供給する工程と、
反応ガスをプラズマ励起して、前記基板を晒す工程と、を複数回繰り返し、
前記エッチャントガスを供給する工程における前記エッチャントガスの供給圧力と、前記エッチャントガスの供給時間とに基づいて、エッチング温度を決定する、
基板処理方法。 - 前記エッチャントガスは、ハロゲン化水素を含む、
請求項1に記載の基板処理方法。 - 前記反応ガスは、Hを含むガスである、
請求項1または請求項2に記載の基板処理方法。 - 前記反応ガスは、
アンモニアガスまたは水素ガスと、窒素ガスと、の混合ガスである、
請求項3に記載の基板処理方法。 - 前記エッチング対象膜は、シリコン系膜を含み、
シリコン膜、アモルファスシリコン膜、ポリシリコン膜、結晶シリコン膜のうち、少なくとも何れか一つを含む、
請求項1乃至請求項4のいずれか1項に記載の基板処理方法。 - 前記エッチング対象膜は、ゲルマニウム系膜を含み、
アモルファスシリコンゲルマニウム膜、多結晶シリコンゲルマニウム膜、単結晶シリコンゲルマニウム膜、アモルファスゲルマニウム膜、多結晶ゲルマニウム膜、単結晶ゲルマニウム膜のうち、少なくとも何れか一つを含む、
請求項5に記載の基板処理方法。 - 基板に形成されたシリコン系膜をSiN、SiO 2 に対して選択的にエッチングする基板処理方法であって、
前記基板を準備する工程と、
前記シリコン系膜をエッチングする工程と、を有し、
前記シリコン系膜をエッチングする工程は、
フッ素を含むエッチャントガスを供給して、前記シリコン系膜の表面をフッ化処理してフッ化の反応飽和状態にする工程と、
窒素と水素を含む反応ガスをプラズマ励起して、該プラズマに前記フッ化処理された前記シリコン系膜の表面を晒すことにより、前記フッ化処理された前記シリコン系膜の表面と前記反応ガスのプラズマとが反応して反応生成物を生成し、生成された前記反応生成物を前記基板から昇華させて除去する工程と、を複数回繰り返す、
基板処理方法。 - 基板を収容する処理容器と、
前記処理容器にガスを供給するガス供給部と、
高周波電力を印加してプラズマ励起する高周波電力供給部と、
制御部と、を備え、
前記制御部は、
前記ガス供給部から供給されたエッチャントガスを前記処理容器に供給する工程と、
前記ガス供給部から供給された反応ガスをプラズマ励起して、前記基板を晒す工程と、
を複数回繰り返し、
前記エッチャントガスを供給する工程における前記エッチャントガスの供給圧力と、前記エッチャントガスの供給時間とに基づいて、エッチング温度を決定する、
基板処理装置。
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JP2020042179A JP7394665B2 (ja) | 2020-03-11 | 2020-03-11 | 基板処理方法及び基板処理装置 |
PCT/JP2021/007986 WO2021182189A1 (ja) | 2020-03-11 | 2021-03-02 | 基板処理方法及び基板処理装置 |
US17/905,438 US20230128868A1 (en) | 2020-03-11 | 2021-03-02 | Substrate processing method and substrate processing apparatus |
KR1020227033739A KR20220147661A (ko) | 2020-03-11 | 2021-03-02 | 기판 처리 방법 및 기판 처리 장치 |
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JP (1) | JP7394665B2 (ja) |
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WO (1) | WO2021182189A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015523734A (ja) | 2012-07-10 | 2015-08-13 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 低k誘電体膜をパターニングする方法 |
JP2016134623A (ja) | 2015-01-16 | 2016-07-25 | エーエスエム アイピー ホールディング ビー.ブイ. | プラスマエンハンスト原子層エッチングの方法 |
JP2017063186A (ja) | 2015-08-19 | 2017-03-30 | ラム リサーチ コーポレーションLam Research Corporation | タングステンおよび他の金属の原子層エッチング |
JP2018510515A (ja) | 2015-03-30 | 2018-04-12 | 東京エレクトロン株式会社 | 原子層をエッチングする方法 |
US20180350620A1 (en) | 2017-05-31 | 2018-12-06 | Asm Ip Holding B.V. | Method of atomic layer etching using hydrogen plasma |
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JPH05304122A (ja) * | 1992-04-28 | 1993-11-16 | Matsushita Electric Ind Co Ltd | ドライエッチング方法およびドライエッチング装置 |
US8617411B2 (en) | 2011-07-20 | 2013-12-31 | Lam Research Corporation | Methods and apparatus for atomic layer etching |
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- 2021-03-02 WO PCT/JP2021/007986 patent/WO2021182189A1/ja active Application Filing
- 2021-03-02 US US17/905,438 patent/US20230128868A1/en active Pending
- 2021-03-02 KR KR1020227033739A patent/KR20220147661A/ko not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015523734A (ja) | 2012-07-10 | 2015-08-13 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 低k誘電体膜をパターニングする方法 |
JP2016134623A (ja) | 2015-01-16 | 2016-07-25 | エーエスエム アイピー ホールディング ビー.ブイ. | プラスマエンハンスト原子層エッチングの方法 |
JP2018510515A (ja) | 2015-03-30 | 2018-04-12 | 東京エレクトロン株式会社 | 原子層をエッチングする方法 |
JP2017063186A (ja) | 2015-08-19 | 2017-03-30 | ラム リサーチ コーポレーションLam Research Corporation | タングステンおよび他の金属の原子層エッチング |
US20180350620A1 (en) | 2017-05-31 | 2018-12-06 | Asm Ip Holding B.V. | Method of atomic layer etching using hydrogen plasma |
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US20230128868A1 (en) | 2023-04-27 |
JP2021145030A (ja) | 2021-09-24 |
WO2021182189A1 (ja) | 2021-09-16 |
KR20220147661A (ko) | 2022-11-03 |
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