JP2008518463A - 水素流量傾斜化によるフォトレジストプラズマコンディショニング工程を含むエッチング方法 - Google Patents
水素流量傾斜化によるフォトレジストプラズマコンディショニング工程を含むエッチング方法 Download PDFInfo
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- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
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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
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- 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
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- 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
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Abstract
【解決手段】基板上においてフォトレジストマスク(212)を介してエッチング層(208)内で要素をエッチングする方法を提供する。フォトレジストマスクの下にエッチング層が配置された基板を、処理チャンバ内に配置する。フォトレジストマスクのコンディショニングを行い、コンディショニングするステップは、或る流量の水素含有ガスと或る流量のフルオロカーボン及びハイドロフルオロカーボンの少なくとも一方とを含むコンディショニングガスを処理チャンバへ提供するステップと、コンディショニングプラズマを形成しフォトレジスト(214)を硬化させるためにコンディショニングガスを活性化させるステップとを含む。コンディショニングプラズマを停止する。エッチングプラズマを処理チャンバに提供し、エッチングプラズマはコンディショニングプラズマとは異なるものとする。要素は、エッチングプラズマにより、エッチング層(208)にエッチングされる。
【選択図】図5
Description
Claims (19)
- 基板上においてフォトレジストマスクを介してエッチング層内で要素をエッチングする方法であって、
フォトレジストマスクの下にエッチング層が配置された基板を、処理チャンバ内に配置するステップと、
前記フォトレジストをコンディショニングするステップであって、
或る流量の水素含有ガスと、或る流量のフルオロカーボン及びハイドロフルオロカーボンの少なくとも一方と、を含むコンディショニングガスを前記処理チャンバへ提供するステップ、及び
コンディショニングプラズマを形成するために前記コンディショニングガスを活性化するステップを含む
コンディションニングステップと、
前記コンディショニングプラズマを停止するステップと、
前記コンディショニングプラズマとは異なるエッチングプラズマを前記処理チャンバに提供するステップと、
前記エッチングプラズマにより前記エッチング層内で要素をエッチングするステップと、
を備える方法。 - 更に、前記水素含有ガスの前記流量と、前記フルオロカーボン及びハイドロフルオロカーボンの前記少なくとも一方の前記流量の比が傾斜的に減少するように、前記コンディショニングガスを傾斜させるステップを備える、請求項1記載の方法。
- 前記水素含有ガスはH2である、請求項1及び2の何れかに記載の方法。
- 前記コンディショニングプラズマは、in−situプラズマである、請求項1乃至3の何れかに記載の方法。
- BARCが前記フォトレジストマスクと前記エッチング層との間に配置されており、前記フォトレジストマスクの前記コンディショニングにより前記BARCを開口させる、請求項1乃至4の何れかに記載の方法。
- 前記傾斜させるステップは、非線形傾斜である、請求項2乃至5の何れかに記載の方法。
- 前記コンディショニングするステップは、前記BARCの開口時に少なくとも100:1のフォトレジスト選択性を提供する、請求項5及び6の何れかに記載の方法。
- 前記エッチング層は、誘電層である、請求項1乃至7の何れかに記載の方法。
- 前記水素含有ガスはH2であり、前記フルオロカーボン及びハイドロフルオロカーボンの少なくとも一方はCF4である、請求項1乃至8の何れかに記載の方法。
- 前記コンディショニングガスは、1:10乃至2:1の初期H2対CF4流量比を有し、0乃至1:20の最終H2対CF4流量比を有する、請求項1乃至9の何れかに記載の方法。
- 請求項1乃至10の何れかに記載の方法により形成された半導体チップ。
- 請求項1乃至10の何れかに記載の方法を実行する装置。
- 基板上において反射防止膜及びフォトレジストマスクを介してエッチング層内で要素をエッチングする方法であって、
反射防止膜及びフォトレジストマスクの下にエッチング層が配置された基板を、処理チャンバ内に配置するステップと、
前記反射防止膜を開口させるステップであって、
或る流量の水素含有ガスと、或る流量のフルオロカーボン及びハイドロフルオロカーボンの少なくとも一方とを含むコンディショニングガスを前記処理チャンバへ提供するステップ、及び
コンディショニングプラズマを形成するために前記コンディショニングガスを活性化するステップを含む
開口ステップと、
前記反射防止膜を開口させた後に前記コンディショニングプラズマを停止するステップと、
前記コンディショニングプラズマとは異なるエッチングプラズマを前記処理チャンバに提供するステップと、
前記反射防止膜及びフォトレジストマスクを介して、前記エッチングプラズマにより前記エッチング層内で要素をエッチングするステップと、
を備える方法。 - 更に、前記水素含有ガスの前記流量と、前記フルオロカーボン及びハイドロフルオロカーボンの少なくとも一方の前記流量の比が傾斜的に減少するように、前記コンディショニングガスを傾斜させるステップを備える、請求項13記載の方法。
- 前記水素含有ガスはH2である、請求項18記載の方法。
- 前記コンディショニングプラズマは、in−situプラズマである、請求項13乃至15の何れかに記載の方法。
- 前記コンディショニングするステップは、ARC開口時に少なくとも100:1のフォトレジスト選択性を提供する、請求項13乃至16の何れかに記載の方法。
- 前記水素含有ガスはH2であり、前記フルオロカーボン及びハイドロフルオロカーボンの少なくとも一方はCF4である、請求項13乃至17の何れかに記載の方法。
- 前記コンディショニングガスは、1:2乃至5:4の初期H2対CF4流量比を有し、0乃至1:20の最終H2対CF4流量比を有する、請求項1乃至18の何れかに記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/975,209 US7053003B2 (en) | 2004-10-27 | 2004-10-27 | Photoresist conditioning with hydrogen ramping |
US10/975,209 | 2004-10-27 | ||
PCT/US2005/034172 WO2006049736A1 (en) | 2004-10-27 | 2005-09-23 | Etching method including photoresist plasma conditioning step with hydrogen flow rate ramping |
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JP2008518463A true JP2008518463A (ja) | 2008-05-29 |
JP2008518463A5 JP2008518463A5 (ja) | 2009-05-21 |
JP5086090B2 JP5086090B2 (ja) | 2012-11-28 |
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JP2007538921A Expired - Fee Related JP5086090B2 (ja) | 2004-10-27 | 2005-09-23 | 水素流量傾斜化によるフォトレジストプラズマコンディショニング工程を含むエッチング方法及び装置 |
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US (2) | US7053003B2 (ja) |
JP (1) | JP5086090B2 (ja) |
KR (1) | KR101335137B1 (ja) |
CN (1) | CN101061436B (ja) |
TW (1) | TWI423322B (ja) |
WO (1) | WO2006049736A1 (ja) |
Cited By (1)
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US7053003B2 (en) | 2006-05-30 |
TW200625441A (en) | 2006-07-16 |
KR20070085441A (ko) | 2007-08-27 |
TWI423322B (zh) | 2014-01-11 |
KR101335137B1 (ko) | 2013-12-09 |
US20060124242A1 (en) | 2006-06-15 |
CN101061436A (zh) | 2007-10-24 |
JP5086090B2 (ja) | 2012-11-28 |
CN101061436B (zh) | 2011-05-11 |
WO2006049736A1 (en) | 2006-05-11 |
US7682480B2 (en) | 2010-03-23 |
US20060089005A1 (en) | 2006-04-27 |
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