JP7285761B2 - 処理方法 - Google Patents
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- JP7285761B2 JP7285761B2 JP2019201376A JP2019201376A JP7285761B2 JP 7285761 B2 JP7285761 B2 JP 7285761B2 JP 2019201376 A JP2019201376 A JP 2019201376A JP 2019201376 A JP2019201376 A JP 2019201376A JP 7285761 B2 JP7285761 B2 JP 7285761B2
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45574—Nozzles for more than one gas
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4405—Cleaning of reactor or parts inside the reactor by using reactive gases
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4408—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber by purging residual gases from the reaction chamber or gas lines
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45557—Pulsed pressure or control pressure
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45565—Shower nozzles
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/458—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for supporting substrates in the reaction chamber
- C23C16/4582—Rigid and flat substrates, e.g. plates or discs
- C23C16/4583—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally
- C23C16/4584—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally the substrate being rotated
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/511—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using microwave discharges
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- 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
- H01J37/32192—Microwave generated discharge
- H01J37/32211—Means for coupling power to the plasma
- H01J37/3222—Antennas
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- 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
- H01J37/32798—Further details of plasma apparatus not provided for in groups H01J37/3244 - H01J37/32788; special provisions for cleaning or maintenance of the apparatus
- H01J37/32853—Hygiene
- H01J37/32862—In situ cleaning of vessels and/or internal parts
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- H10P72/7618—
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- H10P72/7621—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45527—Atomic layer deposition [ALD] characterized by the ALD cycle, e.g. different flows or temperatures during half-reactions, unusual pulsing sequence, use of precursor mixtures or auxiliary reactants or activations
- C23C16/45536—Use of plasma, radiation or electromagnetic fields
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- 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
- H01J37/32798—Further details of plasma apparatus not provided for in groups H01J37/3244 - H01J37/32788; special provisions for cleaning or maintenance of the apparatus
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- 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
- H01J37/32798—Further details of plasma apparatus not provided for in groups H01J37/3244 - H01J37/32788; special provisions for cleaning or maintenance of the apparatus
- H01J37/32816—Pressure
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Description
図1は、成膜装置10の一例を示す断面図である。図2は、上方から見た場合の成膜装置10の一例を示す模式図である。図2におけるA-A断面が図1である。図3および図4は、図1における軸線Xの左側の部分の一例を示す拡大断面図である。図5は、ユニットUの下面の一例を示す図である。図6は、図1における軸線Xの右側の部分の一例を示す拡大断面図である。図1~図6に示す成膜装置10は、主に、処理容器12、載置台14、第1のガス供給部16、排気部18、第2のガス供給部20、およびプラズマ生成部22を備える。
アルゴン)等の不活性ガスである。パージガスが基板Wの表面に噴射されることにより、基板Wに過剰に吸着した前駆体ガスの原子または分子(残留ガス成分)が基板Wから除去される。これにより、基板Wの表面に、前駆体ガスの原子または分子が吸着した原子層または分子層が形成される。
一実施形態の成膜装置10により基板Wに所定の厚みの膜を形成する処理(以下「成膜処理」という。)によって、処理容器12内の各部、例えばアンテナ22aの天板40の下面や載置台14の上面に付着する堆積膜を除去する処理方法の一例について説明する。
一実施形態の処理方法におけるプラズマパージ処理のシーケンスの一例について説明する。図8は、プラズマパージ処理のシーケンスの一例を示す図である。
赤外線カメラを用いてマイクロ波により生成されるプラズマの発光強度分布を評価した結果について説明する。本評価では、ヒータ26の設定温度を80℃、チラー48の設定温度を60℃、パージガスとしてNH3ガスとH2ガスとArガスの混合ガス、マイクロ波の電力を2.5kWに固定し、処理容器12内の圧力を変化させたときのプラズマの発光強度分布を測定した。
まず、処理容器12内に堆積膜が付着した状態で、処理容器12内にウエハを収容し、以下に示される条件A~Eにより処理容器12内に付着した堆積膜を除去する処理を行い、該処理の際にウエハに堆積したパーティクルの数を測定した。
チラー48の設定温度:80℃
処理容器12内の圧力:0.4Torr(53Pa)
マイクロ波の電力:3.0kW
パージガス:a-1/a-2/a-3=N2/N2/N2
パージ時間:60分
ヒータ26の設定温度:550℃
なお、a-1、a-2及びa-3は、第2の領域R2のうちのそれぞれアンテナ22a-1、22a-1及び22a-3が設けられた領域を示す。即ち、a-1/a-2/a-3=N2/N2/N2は、アンテナ22a-1が設けられた領域にN2ガスを供給し、アンテナ22a-2が設けられた領域にN2ガスを供給し、アンテナ22a-3が設けられた領域にN2ガスを供給することを意味する。
チラー48の設定温度:80℃
処理容器12内の圧力:2.0Torr(267Pa)
マイクロ波の電力:3.0kW
パージガス:a-1/a-2/a-3=H2/H2/H2+NH3
パージ時間:60分
ヒータ26の設定温度:550℃
チラー48の設定温度:80℃
処理容器12内の圧力:0.9Torr(120Pa)
マイクロ波の電力:3.0kW
パージガス:a-1/a-2/a-3=H2/H2/H2+NH3
パージ時間:60分
ヒータ26の設定温度:550℃
チラー48の設定温度:80℃
処理容器12内の圧力:0.8Torr(107Pa)から3.0Torr(400Pa)にステップ状に昇圧するステップと3.0Torr(400Pa)から0.8Torr(107Pa)にステップ状に降圧するステップとを含む複数のサイクル
マイクロ波の電力:3.0kW
パージガス:a-1/a-2/a-3=H2/H2/H2+NH3
パージ時間:60分
ヒータ26の設定温度:550℃
条件Aの後に条件Dを実施
12 処理容器
22 プラズマ生成部
22a アンテナ
40 天板
W 基板
Claims (13)
- 処理容器内でパージガスのプラズマを生成した状態で前記処理容器内の圧力を変化させる工程であって、生成した前記プラズマにより前記処理容器内に付着した膜を除去する工程を有し、
前記圧力を変化させる工程は、
前記処理容器内の圧力をステップ状に上昇させるステップと、
前記処理容器内の圧力をステップ状に下降させるステップと、
を含む、
処理方法。 - 前記上昇させるステップと前記下降させるステップとは繰り返し行われる、
請求項1に記載の処理方法。 - 前記圧力を変化させる工程は、前記処理容器内に基板を収容した状態で行われる、
請求項1又は2に記載の処理方法。 - 前記圧力を変化させる工程は、前記処理容器内に基板を収容しない状態で行われる、
請求項1又は2に記載の処理方法。 - 前記パージガスは、H2ガスを含む、
請求項1乃至4のいずれか一項に記載の処理方法。 - 前記パージガスは、NH3ガスを含む、
請求項1乃至5のいずれか一項に記載の処理方法。 - 前記プラズマは、アンテナからマイクロ波を供給することにより生成される、
請求項1乃至6のいずれか一項に記載の処理方法。 - 前記圧力を変化させる工程は、前記処理容器内に基板を収容した状態で前記基板に対して成膜処理を行う工程よりも前記アンテナの天板の温度を高くして行われる、
請求項7に記載の処理方法。 - 前記処理容器内で第2のパージガスのプラズマを生成する工程であって、生成した前記プラズマにより前記処理容器内に付着した膜を除去する工程を更に有する、
請求項1乃至8のいずれか一項に記載の処理方法。 - 前記第2のパージガスのプラズマを生成する工程は、前記処理容器内の圧力を一定に維持した状態で行われる、
請求項9に記載の処理方法。 - 前記第2のパージガスのプラズマを生成する工程は、前記圧力を変化させる工程の前に行われる、
請求項9又は10に記載の処理方法。 - 前記第2のパージガスのプラズマを生成する工程における前記処理容器内の圧力は、前記圧力を変化させる工程における前記処理容器内の圧力の最小値よりも低い、
請求項9乃至11のいずれか一項に記載の処理方法。 - 前記第2のパージガスは、N2ガスを含む、
請求項9乃至12のいずれか一項に記載の処理方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019201376A JP7285761B2 (ja) | 2019-11-06 | 2019-11-06 | 処理方法 |
| KR1020200139990A KR102734522B1 (ko) | 2019-11-06 | 2020-10-27 | 처리 방법 |
| US17/086,634 US11414753B2 (en) | 2019-11-06 | 2020-11-02 | Processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019201376A JP7285761B2 (ja) | 2019-11-06 | 2019-11-06 | 処理方法 |
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| JP2012064773A (ja) | 2010-09-16 | 2012-03-29 | Hitachi High-Technologies Corp | プラズマ処理装置 |
| JP2012238644A (ja) | 2011-05-10 | 2012-12-06 | Ulvac Japan Ltd | ZrBO膜の形成装置 |
| JP2014154681A (ja) | 2013-02-07 | 2014-08-25 | Renesas Electronics Corp | 半導体装置の製造装置のクリーニング方法および半導体装置の製造方法 |
| JP2016219451A (ja) | 2015-05-14 | 2016-12-22 | 東京エレクトロン株式会社 | クリーニング方法及びプラズマ処理方法 |
| JP2018166190A (ja) | 2017-03-28 | 2018-10-25 | 東京エレクトロン株式会社 | 洗浄副生成物の付着抑制方法及びこれを用いた反応室内のクリーニング方法、並びに室温成膜装置 |
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| KR100893955B1 (ko) * | 2004-02-19 | 2009-04-20 | 도쿄엘렉트론가부시키가이샤 | 기판 처리 장치에 있어서의 처리실의 클리닝 방법 및 클리닝의 종점 검출 방법 |
| US8119545B2 (en) * | 2008-03-31 | 2012-02-21 | Tokyo Electron Limited | Forming a silicon nitride film by plasma CVD |
| CN102899635B (zh) * | 2012-09-26 | 2015-12-02 | 中微半导体设备(上海)有限公司 | 一种原位清洁mocvd反应腔室的方法 |
| JP5807084B2 (ja) * | 2013-09-30 | 2015-11-10 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理装置およびプログラム |
| JP6378070B2 (ja) | 2014-12-15 | 2018-08-22 | 東京エレクトロン株式会社 | 成膜方法 |
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| JP2007067455A (ja) | 2006-12-11 | 2007-03-15 | Canon Anelva Corp | 絶縁膜エッチング装置 |
| JP2012064773A (ja) | 2010-09-16 | 2012-03-29 | Hitachi High-Technologies Corp | プラズマ処理装置 |
| JP2012238644A (ja) | 2011-05-10 | 2012-12-06 | Ulvac Japan Ltd | ZrBO膜の形成装置 |
| JP2014154681A (ja) | 2013-02-07 | 2014-08-25 | Renesas Electronics Corp | 半導体装置の製造装置のクリーニング方法および半導体装置の製造方法 |
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| KR20210054988A (ko) | 2021-05-14 |
| US20210130950A1 (en) | 2021-05-06 |
| KR102734522B1 (ko) | 2024-11-27 |
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