JP2009544120A - マルチソース型のプラズマ集束イオン・ビーム・システム - Google Patents
マルチソース型のプラズマ集束イオン・ビーム・システム Download PDFInfo
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- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 19
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- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 4
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- BLIQUJLAJXRXSG-UHFFFAOYSA-N 1-benzyl-3-(trifluoromethyl)pyrrolidin-1-ium-3-carboxylate Chemical compound C1C(C(=O)O)(C(F)(F)F)CCN1CC1=CC=CC=C1 BLIQUJLAJXRXSG-UHFFFAOYSA-N 0.000 description 2
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- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical compound CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 description 1
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- NXHILIPIEUBEPD-UHFFFAOYSA-H tungsten hexafluoride Chemical compound F[W](F)(F)(F)(F)F NXHILIPIEUBEPD-UHFFFAOYSA-H 0.000 description 1
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Images
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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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0021—Reactive sputtering or evaporation
- C23C14/0026—Activation or excitation of reactive gases outside the coating chamber
- C23C14/0031—Bombardment of substrates by reactive ion beams
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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
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/3002—Details
- H01J37/3007—Electron or ion-optical systems
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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
- 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
- C23C14/221—Ion beam deposition
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- H01J27/16—Ion sources; Ion guns using high-frequency excitation, e.g. microwave excitation
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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
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
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- 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
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- H—ELECTRICITY
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- 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
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/305—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating, or etching
- H01J37/3053—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating, or etching for evaporating or etching
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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
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/305—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating, or etching
- H01J37/3053—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating, or etching for evaporating or etching
- H01J37/3056—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating, or etching for evaporating or etching for microworking, e. g. etching of gratings or trimming of electrical components
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- 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
- 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
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
- H01J37/3211—Antennas, e.g. particular shapes of coils
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- H01J2237/06—Sources
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- H01J2237/06—Sources
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Abstract
Description
Claims (29)
- 荷電粒子ビーム加工の方法であって、
第1のガス供給源と、第2のガス供給源と、を有するイオン・ビーム・システムを提供することであって、前記第1および第2のガス供給源が第1のタイプのイオンまたは第2のタイプのイオンを発生するイオン源のプラズマ・チャンバにそれぞれ選択的に接続されており、前記プラズマ・チャンバから抽出されたイオンのビームを形成する集束化光学素子を備える前記イオン・ビーム・システムを提供することと、
前記第1のガス供給源からのガスを前記プラズマ・チャンバに選択的に導入することと、
前記プラズマ・チャンバから抽出された前記第1のタイプのイオンのビームを用いて加工物を加工することと、
前記第2のガス供給源からのガスを前記プラズマ・チャンバに選択的に導入することと、
前記プラズマ・チャンバから抽出された前記第2のタイプのイオンのビームを用いて前記加工物を加工することと
を含み、前記加工物を前記真空チャンバから取り出さず、前記真空チャンバを、第1のタイプのイオンのビームを用いて加工物を加工することと第2のタイプのイオンのビームを用いて加工物を加工することとの間で大気に曝露させない方法。 - 前記イオン源が、イオン種を受け取り前記チャンバからイオン・ビームを抽出するためのRF励起型インピーダンス整合プラズマ・チャンバを備える、請求項1に記載の方法。
- 前記インピーダンス整合プラズマ・チャンバが、選択された特定のイオン種のために前記プラズマに伝達される出力量を変化させるように調整可能なインピーダンス整合回路に結合された、請求項2に記載の方法。
- 前記第1のタイプのイオンのビームを用いて加工物を加工することが、サブミクロンのスポット・サイズを有するビームを前記加工物に向けて誘導することを含み、前記第2のタイプのイオンのビームを局所的に用いて加工物を加工することが、サブミクロンのスポット・サイズを有するビームを前記加工物に向けて誘導することを含む、請求項1に記載の方法。
- 前記第1のタイプのイオンのビームを用いて加工物を加工することが、ガウス形状イオン・ビームまたは非ガウス形状イオン・ビームを用いて前記加工物を加工することを含む、請求項1に記載の方法。
- 第1のタイプのイオンのビームを用いて加工物を加工することまたは第2のタイプのイオンのビームを用いて加工物を加工することが、
イオン・ビーム誘導堆積または直接材料堆積を用いて材料を堆積させることと、
イオン・ビーム・スパッタリングまたは化学的強化イオン・ビーム・エッチングを用いて材料を除去することと、
イオン・ビーム・撮像を用いて前記加工物の像を形成すること、または
二次イオン質量分析法を用いて前記加工物の組成を分析することのうちの1つによって前記加工物を加工することと
を含む、請求項1に記載の方法。 - 第1のタイプのイオンのビームを用いて加工物を加工することまたは第2のタイプのイオンのビームを用いて加工物を加工することが、不活性イオンのビームまたは反応性イオンのビームを前記加工物に誘導することを含む、請求項1に記載の方法。
- 前記第1のタイプのイオンのビームを用いて加工物を加工することまたは前記第2のタイプのイオンのビームを用いて加工物を加工することが、イオンのビームを誘導して前記加工物表面上に材料を堆積させることを含む、請求項1に記載の方法。
- イオンのビームを誘導して前記加工物表面上に材料を堆積させることが、堆積させる材料以外の原子を含み、分解して前記所望の堆積材料の前記原子を堆積させる、イオンのビームを誘導することを含む、請求項8に記載の方法。
- イオンのビームを誘導して前記加工物表面上に材料を堆積させることが、堆積させる材料のみの原子を含むイオンのビームを誘導することを含む、請求項8に記載の方法。
- 第1のタイプのイオンのビームを用いて加工物を加工することが、少なくとも2種の化学組成から成るイオンを含むビームを誘導することを含むか、または第2のタイプのイオンのビームを用いて加工物を局所的に加工することが、少なくとも2種の化学組成から成るイオンを含むビームを誘導することを含む、請求項1に記載の方法。
- 第1のタイプのイオンのビームを用いて加工物を局所的に加工することまたは第2のタイプのイオンのビームを用いて加工物を局所的に加工することが、ガス注入システムから前記加工物に向けてガスを誘導することを含み、前記ガスが、イオン・ビームの存在下で分解して前記加工物表面上に材料を堆積させる前駆体ガス、または前記イオン・ビームの存在下で反応して前記表面から材料を除去するエッチング強化ガスを含む、請求項1に記載の方法。
- イオン・ビーム・システムであって、
プラズマ領域を封入する容器に複数の供給源ガスを提供する複数の供給源ガス接続と、
前記プラズマ領域を封入する容器と、
前記プラズマのイオン化を誘起するためにRF電源によって励起される前記容器近傍のアンテナと、
前記イオン化プラズマ内の振動を実質的に低減するため、前記アンテナを前記電源に結合する回路と、
前記イオン化プラズマをビームの中に抽出するための抽出機構と
を備えるイオン・ビーム・システム。 - 前記ビームをガウス形状または非ガウス形状に集束させる荷電粒子ビーム光学素子をさらに備える、請求項13に記載のシステム。
- 前記供給源ガス接続が、不活性ガス源または反応性ガス源を前記プラズマ・チャンバに選択的に結合する、請求項13に記載のシステム。
- 前記供給源ガス接続が、堆積に用いられる第1のガスおよびエッチングに用いられる第2のガスを前記容器に選択的に提供する、請求項13に記載のシステム。
- 前記容器に提供されたガスが、前記加工物表面上で分解して材料を堆積させる、あるいは前記表面上の前記材料と結合して、それにより前記表面をエッチングする揮発性反応産物を形成するか、または前記表面に残る不揮発性反応産物を形成するガスとを含む、請求項13に記載のシステム。
- 約4eV未満のエネルギー拡散を示す、請求項13に記載のシステム。
- 1000A/cm2/srを超える高輝度のビームを発生する集束化機構をさらに備える、請求項13に記載のシステム。
- 抽出されたビームが、約8keV以上の抽出されたビーム・エネルギーを示す、請求項13に記載のシステム。
- 抽出されたビームが、約50ナノアンペアを超える電流を示し、200ナノメートル未満のスポット・サイズに集束される、請求項13に記載のシステム。
- 選択されたガスから形成された前記ビームが、サブミクロンのスポット・サイズに集束される、請求項13に記載のシステム。
- 試料を処理するためのイオン・ビーム・システムであって、
プラズマ・チャンバに結合された有機金属ガスと、
前記有機金属ガスが結合されたプラズマ・チャンバと
前記プラズマ・チャンバ周囲に位置決めされ、前記プラズマ・チャンバ内の前記有機金属ガスをイオン化するように励起される螺旋アンテナと、
励起源を前記アンテナとインピーダンス整合させるための、前記アンテナを含むネットワーク内の回路と、
前記ビームの金属を試料上に堆積させるためのイオン化された有機金属ビームを抽出する抽出機構と
を備える、イオン・ビーム・システム。 - 前記回路が、キャパシタンスと前記螺旋アンテナとの並列の組み合わせと直列接続されたキャパシタンスを含む、請求項23に記載のシステム。
- 前記有機金属ガスがタングステンヘキサカルボニルである、請求項23に記載のシステム。
- 前記ビームがサブミクロンのスポット・サイズに集束される、請求項23に記載のシステム。
- イオン・ビームを発生する方法であって、
個別におよび順次選択されてプラズマ・チャンバに結合される複数のガス源を提供することと、
プラズマ電位の変調を低減するために、前記アンテナに結合された回路を提供することと、
複数のガスの中から第1のガスおよび次に少なくとも第2のガスを前記プラズマ・チャンバに選択的に提供することと、
前記チャンバ内の前記選択されたガスにエネルギーを結合するアンテナにRF出力を印加して、ガスのイオン化を誘起してイオン・プラズマを発生させることと、
前記アンテナ近傍の抽出領域からイオン化ビームを抽出することと
を含む、方法。 - 選択された1つのガスがエッチングに使用され、選択された別のガスが堆積に使用される、請求項27に記載の方法。
- 前記回路が、特定の選択されたガスについて、前記プラズマに伝達される出力量を変化させるように調整可能である、請求項27に記載の方法。
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JP2016504599A (ja) * | 2013-01-11 | 2016-02-12 | エフ・イ−・アイ・カンパニー | エッチング速度を変化させるためのイオン注入 |
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JP7551542B2 (ja) | 2021-03-05 | 2024-09-17 | キオクシア株式会社 | 半導体装置の製造方法 |
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JP5371142B2 (ja) | 2013-12-18 |
US9401262B2 (en) | 2016-07-26 |
EP2041756A2 (en) | 2009-04-01 |
US20120080407A1 (en) | 2012-04-05 |
WO2008094297A3 (en) | 2008-10-09 |
US8692217B2 (en) | 2014-04-08 |
WO2008094297A2 (en) | 2008-08-07 |
US8076650B2 (en) | 2011-12-13 |
EP2041756B1 (en) | 2015-05-13 |
US20090309018A1 (en) | 2009-12-17 |
US20150318140A1 (en) | 2015-11-05 |
EP2041756A4 (en) | 2011-08-03 |
US9029812B2 (en) | 2015-05-12 |
US8405054B2 (en) | 2013-03-26 |
US20130309421A1 (en) | 2013-11-21 |
US20140312245A1 (en) | 2014-10-23 |
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