JP6271598B2 - ブロック共重合体の自己組織化によって基板上にリソグラフィフィーチャを提供する方法 - Google Patents
ブロック共重合体の自己組織化によって基板上にリソグラフィフィーチャを提供する方法 Download PDFInfo
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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
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- 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
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- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
- B81C1/00015—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems
- B81C1/00023—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems without movable or flexible elements
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- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
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- H—ELECTRICITY
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/0337—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
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- H—ELECTRICITY
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C2201/00—Manufacture or treatment of microstructural devices or systems
- B81C2201/01—Manufacture or treatment of microstructural devices or systems in or on a substrate
- B81C2201/0101—Shaping material; Structuring the bulk substrate or layers on the substrate; Film patterning
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Description
[0001] 本願は、2013年3月15日に出願した米国仮出願第61/792,538号の優先権を主張し、その全体を本願に参考として組み込む。
ここで、RLTは相対的な層厚さであり、wDEPLETION ZONEは(トレンチ幅を含む)空乏領域の幅であり、wTRENCHはトレンチの幅である。
ここで、Pは穴の周期性であり、Rは各穴の半径である。
ラメラである複数のAブロックドメインが同じくラメラである複数のBブロックドメインと交互してもよい。
Claims (18)
- リソグラフィフィーチャを形成する方法であって、前記方法は、
第1ブロック及び第2ブロックを有する、自己組織化可能な選択された特定材料のブロック共重合体を基板のリソグラフィ凹部、前記基板のダミー凹部及び前記リソグラフィ凹部と前記ダミー凹部とを越えて前記基板上に提供することと、
前記自己組織化可能な選択された前記特定材料のブロック共重合体を、前記リソグラフィ凹部及び前記ダミー凹部を囲う領域から前記リソグラフィ凹部及び前記ダミー凹部内に移動させることと、
前記自己組織化可能な選択された前記特定材料のブロック共重合体を、前記リソグラフィ凹部内の秩序層へと自己組織化させることであって、前記層は前記第1ブロックの第1ドメイン及び前記第2ブロックの第2のドメインを含む、組織化させることと、
前記リソグラフィ凹部内で前記第2ドメインを含む前記リソグラフィフィーチャを形成するために前記第1ドメインを選択的に除去することとを含み、
前記リソグラフィ凹部は、前記ダミー凹部の幅より大きい幅を有し、
前記ダミー凹部の前記幅は、自己組織化するために前記自己組織化可能な選択された前記特定材料のブロック共重合体が必要とする最小幅より小さく、
前記ダミー凹部は、前記自己組織化可能な選択された前記特定材料のブロック共重合体が移動される前記リソグラフィ凹部を囲う前記基板の前記領域内にある、方法。 - 前記基板は2つ以上のダミー凹部を有し、前記ダミー凹部は、前記リソグラフィ凹部の周りに対称的に配置される、請求項1に記載の方法。
- 前記リソグラフィ凹部を用いてコンタクトホールを形成する、請求項1又は2に記載の方法。
- 前記ダミー凹部は円形である、請求項1〜3のいずれかに記載の方法。
- 前記ダミー凹部は線形である、請求項1〜3のいずれかに記載の方法。
- 前記リソグラフィフィーチャは、40nm以下の最小横方向寸法を有する、請求項1〜5のいずれかに記載の方法。
- 前記リソグラフィフィーチャは、5nm以上の最小横方向寸法を有する、請求項1〜6のいずれかに記載の方法。
- 前記リソグラフィ凹部の側壁は、前記ブロックのうちの1つに対してより高い化学親和力を有する、請求項1〜7のいずれかに記載の方法。
- 前記リソグラフィ凹部の側壁はフォトリソグラフィを用いて形成される、請求項1〜8のいずれかに記載の方法。
- 前記リソグラフィ凹部の側壁は、20nm〜150nmの間の高さを有するようにサイズ設定される、請求項1〜9のいずれかに記載の方法。
- 前記リソグラフィ凹部は円形である、請求項1〜10のいずれかに記載の方法。
- 前記自己組織化可能な選択された前記特定材料のブロック共重合体は、前記第2ブロックの第2連続ドメインによって囲われた円筒形構成における前記第1ブロックの円筒形第1ドメインを有する秩序層を形成するように適合され、前記円筒形第1ドメインは、前記基板に対して実質的に垂直に配向される、請求項11に記載の方法。
- 前記リソグラフィ凹部は線形である、請求項1〜10のいずれかに記載の方法。
- 前記自己組織化可能な選択された前記特定材料のブロック共重合体は、ラメラ状の秩序層を形成するように適合され、前記第1ドメインはラメラであってかつ同様にラメラである第2ドメインと交互し、前記第1ドメイン及び前記第2ドメインの前記ラメラは、その平面が前記基板と実質的に垂直かつ前記リソグラフィ凹部の前記側壁と実質的に平行であるように配向される、請求項13に記載の方法。
- 前記ドメインのうちの1つは、エッチングによって選択的に除去される、請求項1〜14のいずれかに記載の方法。
- 前記ドメインのうちの1つは、光崩壊又は光開裂によって選択的に除去される、請求項1〜14のいずれかに記載の方法。
- 前記凹部はレジストに形成される、請求項1〜16のいずれかに記載の方法。
- リソグラフィフィーチャを基板上に形成する方法であって、前記基板はリソグラフィ凹部及びダミー凹部を含み、前記リソグラフィ凹部の幅は前記ダミー凹部の幅より大きく、前記方法は、
第1ブロック及び第2ブロックを有する自己組織化可能な選択された特定材料のブロック共重合体を、前記リソグラフィ凹部及び前記ダミー凹部を囲う領域から前記リソグラフィ凹部及び前記ダミー凹部内に移動させることと、
前記自己組織化可能な選択された前記特定材料のブロック共重合体を、前記リソグラフィ凹部内の秩序層へと自己組織化させることであって、前記層は前記第1ブロックの第1ドメイン及び前記第2ブロックの第2のドメインを含む、組織化させることと、
前記リソグラフィ凹部内で前記第2ドメインを含む前記リソグラフィフィーチャを形成するために前記第1ドメインを選択的に除去することとを含み、
前記ダミー凹部の前記幅は、自己組織化するために前記自己組織化可能な選択された前記特定材料のブロック共重合体が必要とする最小幅より小さく、
前記ダミー凹部は、前記自己組織化可能な選択された前記特定材料のブロック共重合体が移動される前記リソグラフィ凹部を囲う前記基板の前記領域内にある、方法。
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US201361792538P | 2013-03-15 | 2013-03-15 | |
US61/792,538 | 2013-03-15 | ||
PCT/EP2014/053692 WO2014139793A1 (en) | 2013-03-15 | 2014-02-26 | Methods for providing lithography features on a substrate by self-assembly of block copolymers |
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JP6271598B2 true JP6271598B2 (ja) | 2018-01-31 |
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JP (1) | JP6271598B2 (ja) |
KR (1) | KR101772038B1 (ja) |
CN (1) | CN105051863B (ja) |
TW (1) | TWI546617B (ja) |
WO (1) | WO2014139793A1 (ja) |
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US8114306B2 (en) | 2009-05-22 | 2012-02-14 | International Business Machines Corporation | Method of forming sub-lithographic features using directed self-assembly of polymers |
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