JP2006518806A - スパッタリングターゲットを製造するための方法および装置 - Google Patents
スパッタリングターゲットを製造するための方法および装置 Download PDFInfo
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- 238000005477 sputtering target Methods 0.000 title claims abstract description 34
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- C—CHEMISTRY; METALLURGY
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
-
- C—CHEMISTRY; METALLURGY
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3407—Cathode assembly for sputtering apparatus, e.g. Target
- C23C14/3414—Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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- C—CHEMISTRY; METALLURGY
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
- C23C4/185—Separation of the coating from the substrate
-
- 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
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3488—Constructional details of particle beam apparatus not otherwise provided for, e.g. arrangement, mounting, housing, environment; special provisions for cleaning or maintenance of the apparatus
- H01J37/3491—Manufacturing of targets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Physical Vapour Deposition (AREA)
- Coating By Spraying Or Casting (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
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Abstract
Description
i)被覆受容表面を有する基板を提供する段階と、
ii)スパッタリングターゲットを形成するように選択されたターゲット材料を空中で粉末状にプラズマ溶解し、溶解したターゲット材料の溶滴を生じさせる段階と、
iii)前記基板の被覆受容表面上に前記液滴を蒸着させ、前記基板の被覆受容表面上に前記ターゲット材料の被覆層からなるスパッタリングターゲットを生じさせる段階と、
を有するスパッタリングターゲットを製造するための方法が提供される。
スパッタリングターゲットを形成するように選択された材料を溶解するためのプラズマトーチであって、溶解した材料の溶滴を生じさせ、基板の被覆受容表面上にそれらの液滴を蒸着させ、前記基板の被覆受容表面上に材料の被覆層からなるスパッタリングターゲットを生じさせるプラズマトーチを有するスパッタリングターゲットを製造するための方法が提供される。
102−被覆受容表面204を有する一時的な基板200を提供する;
104−スパッタリングターゲットを形成するように選択された材料をプラズマ溶解し、溶解した材料の溶滴を生じさせる;
106−一時的な基板200の被覆受容表面204上に液滴を蒸着させ、一時的なターゲット200の被覆受容表面204上に上記材料の被覆層206を生じさせる;
108−被覆した一時的なターゲットを永久的なターゲット支持材料208に被覆層206を介して接合する;
110−一時的な基板200を取り外し、永久的なターゲット支持材料208上に上記材料206の被覆層からなるスパッタリングターゲット210を生じさせる。
プラズマガス流量=40から50slpm
プラズマガス成分=10から20体積%のH2を含むAr/H2
プラズマパワー=30から40kW
蒸着チャンバ圧力=50から100Torr
プラズマ基板蒸着距離=10から20cm
粉末供給速度=10から20g/min
粉末平均粒子直径=30から50マイクロメートル。
プラズマガス流量;
シースガス=90slpm(Ar)+10slpm(H2)
主要ガス=30slpm(Ar)
粉末ガス=9slpm(He)
プラズマ・プレート・パワー=80kW
チャンバ圧力=100Torr
粉末供給速度=30〜40g/min
粉末材料=シリコン
粉末粒径分布=40〜90マイクロメートル
プラズマトーチ−基板距離=20cm
基板回転=20rpm
全蒸着時間=30min。
202 マーキング
204 被覆受容表面
206 ターゲットプレート
208 ターゲット支持材料
210 スパッタリングターゲット
300 直流プラズマジェット
310 プラズマ装置(直流プラズマ転送アーク装置)
320 プラズマ装置(無線周波数誘導プラズマ溶射装置)
330 プラズマ装置(無線周波数誘導プラズマ溶射装置)
Claims (28)
- i)被覆受容表面を有する基板を提供する段階と、
ii)スパッタリングターゲットを形成するように選択されたターゲット材料を粉末状にプラズマ溶解して飛行させ、溶解したターゲット材料の溶滴を生じさせる段階と、
iii)前記基板の被覆受容表面上に前記液滴を蒸着させ、前記基板の被覆受容表面上に前記ターゲット材料の被覆層からなるスパッタリングターゲットを生じさせる段階と、
を有するスパッタリングターゲットを製造するための方法。 - 前記基板は使用済みの、および消耗したターゲットである請求項1に記載の方法。
- 前記基板は一時的な基板であり、前記方法はさらに、
iv)前記一時的な基板を永久的なターゲット支持材料に前記被覆層を介して接合する段階と、
v)前記一時的な基板を取り外し、前記永久的なターゲット支持材料上に前記ターゲット材料の前記被覆層からなるスパッタリングターゲットを生じさせる段階と、
を有する請求項1に記載の方法。 - 前記一時的な基板は応力除去機能を含む請求項3に記載の方法。
- 前記応力除去機能は、らせん状または放射状の形状にある請求項4に記載の方法。
- 段階iv)の前に、前記被覆層の熱処理を実行する段階iii)の1)を有する請求項3に記載の方法。
- 段階iv)の前に、応力除去マーキングを前記被覆層に提供する段階iii)の1)を有する請求項3に記載の方法。
- 前記一時的な基板には制御層をもった予備被覆が施され、
前記制御層は、作業中において、段階v)における前記一時的な基板の取り外しの少なくとも1つを助けることを可能にし、前記一時的な基板と前記制御層の間の拡散を防止することにより前記被覆層の汚染を回避する、請求項3に記載の方法。 - スパッタリングまたは化学的気相蒸着法を使用することにより、前記制御層が前記一時的な基板上に蒸着される請求項8に記載の方法。
- 前記制御層は不活性物質からなる請求項8に記載の方法。
- 段階iv)における、永久的なターゲット支持材料に前記被覆層を介して前記一時的な基板を接合する段階は、はんだ付またはエポキシの少なくとも1つを使用して行われる請求項3に記載の方法。
- 段階v)における、前記一時的な基板は機械的に取り外される請求項3に記載の方法。
- 段階v)における、前記一時的な基板は、機械加工および/またはエッチングによって取り外される請求項12に記載の方法。
- 段階ii)およびiii)は、直流(d.c.)プラズマジェット装置、直流プラズマ転送アーク装置、および無線周波数(r.f.)誘導プラズマ溶射装置から成るグループから選択されたプラズマ装置を使用して実行される請求項1に記載の方法。
- 前記プラズマ装置は大気圧下または真空蒸着条件下で動作させられる請求項14に記載の方法。
- 前記プラズマ装置は、前記基板がアノードとして動作する直流プラズマ転送アークである請求項14に記載の方法。
- 前記無線周波数(r.f.)誘導プラズマ溶射装置は、超音速または極超音速の流動条件下で前記無線周波数誘導プラズマ溶射装置を動作させるために提供されたラバル収縮/膨張ノズルを含む請求項14に記載の方法。
- 前記基板は、耐熱性金属、セラミック、および炭素ベースの複合材から成るグループから選択された基板材料からなる請求項1に記載の方法。
- 前記耐熱性金属がモリブデンまたはタングステンである請求項18に記載の方法。
- 前記セラミックは、二酸化ケイ素、アルミナ、ジルコニア、窒化シリコン、シリコンカーバイド、および窒化ボロンからなるグループから選択される請求項18に記載の方法。
- 前記炭素ベース複合材料の材料はグラファイトである請求項18に記載の方法。
- 前記基板は一様に平坦なディスクである請求項1に記載の方法。
- スパッタリングターゲットを形成するように選択された材料を溶解するためのプラズマトーチであって、溶解したターゲット材料の溶滴を生じさせ、基板の被覆受容表面上に前記液滴を蒸着させ、前記基板の被覆受容表面上に前記ターゲット材料の被覆層からなるスパッタリングターゲットを生じさせるプラズマトーチを有するスパッタリングターゲットを製造するための方法。
- 前記プラズマトーチは、直流(d.c.)プラズマジェット装置、直流プラズマ転送アーク装置、および無線周波数(r.f.)誘導プラズマ溶射装置から成るグループから選択される請求項23に記載の装置。
- 前記プラズマトーチは直流プラズマ転送アークであり、前記基板がアノードとして動作する請求項23に記載の装置
- 前記無線周波数(r.f.)誘導プラズマ溶射装置は、ラバル収縮/膨張ノズルを含む請求項23に記載の装置。
- 前記プラズマトーチは無線周波数誘導プラズマ溶射タイプであり、真空蒸着チャンバの頂部に取り付けられる請求項23に記載の装置。
- 前記プラズマトーチは下向きに指向され、出口ノズルを含んでおり、前記装置は、前記真空蒸着チャンバ内に、前記基板を受容して前記基板を前記プラズマトーチから一定距離に保持するための移動支持体をさらに有する請求項27に記載の装置。
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PCT/CA2004/000251 WO2004074540A1 (en) | 2003-02-24 | 2004-02-23 | Process and apparatus for the maufacture of a sputtering target |
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WO2004074540A1 (en) | 2004-09-02 |
ATE522637T1 (de) | 2011-09-15 |
CA2556786A1 (en) | 2004-09-02 |
EP1597407B1 (en) | 2011-08-31 |
JP4637819B2 (ja) | 2011-02-23 |
DK1597407T3 (da) | 2011-09-26 |
ES2371070T3 (es) | 2011-12-27 |
CA2556786C (en) | 2012-07-24 |
EP1597407A1 (en) | 2005-11-23 |
US20060233965A1 (en) | 2006-10-19 |
US7964247B2 (en) | 2011-06-21 |
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