JP2009124134A - フォトレジストテンプレートマスクを用いて頻度を倍にする方法 - Google Patents
フォトレジストテンプレートマスクを用いて頻度を倍にする方法 Download PDFInfo
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- 229920002120 photoresistant polymer Polymers 0.000 title claims abstract description 217
- 238000000034 method Methods 0.000 title claims abstract description 116
- 125000006850 spacer group Chemical group 0.000 claims abstract description 174
- 239000000463 material Substances 0.000 claims abstract description 103
- 230000008569 process Effects 0.000 claims abstract description 89
- 229910003481 amorphous carbon Inorganic materials 0.000 claims description 49
- 238000005530 etching Methods 0.000 claims description 43
- 238000000059 patterning Methods 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 238000009833 condensation Methods 0.000 claims description 14
- 230000005494 condensation Effects 0.000 claims description 14
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 14
- 238000000151 deposition Methods 0.000 claims description 9
- 238000001312 dry etching Methods 0.000 claims description 9
- 238000005092 sublimation method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 4
- 238000000859 sublimation Methods 0.000 claims description 4
- 230000008022 sublimation Effects 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 description 19
- 238000001459 lithography Methods 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 15
- 239000000758 substrate Substances 0.000 description 12
- 238000009966 trimming Methods 0.000 description 11
- 238000011161 development Methods 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002194 amorphous carbon material Substances 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- URQUNWYOBNUYJQ-UHFFFAOYSA-N diazonaphthoquinone Chemical compound C1=CC=C2C(=O)C(=[N]=[N])C=CC2=C1 URQUNWYOBNUYJQ-UHFFFAOYSA-N 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WGXGKXTZIQFQFO-CMDGGOBGSA-N ethenyl (e)-3-phenylprop-2-enoate Chemical compound C=COC(=O)\C=C\C1=CC=CC=C1 WGXGKXTZIQFQFO-CMDGGOBGSA-N 0.000 description 1
- 238000001900 extreme ultraviolet lithography Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02115—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material being carbon, e.g. alpha-C, diamond or hydrogen doped carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- 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
- H01L21/0338—Process specially adapted to improve the resolution of the mask
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
- H01L21/31—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
- H01L21/314—Inorganic layers
- H01L21/3146—Carbon layers, e.g. diamond-like layers
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Abstract
【解決手段】フォトレジスト層が上に形成されたデバイス層がまず提供される。フォトレジスト層がパターン化されて、フォトレジストテンプレートマスクが形成される。スペーサ形成材料層が、フォトレジストテンプレートマスク上に堆積する。スペーサ形成材料層がエッチングされて、スペーサマスクが形成され、フォトレジストテンプレートマスクが露出する。フォトレジストテンプレートマスクを除去し、スペーサマスクの画像が、最終的にデバイス層に転写される。
【選択図】図2
Description
本発明は、半導体処理の分野に属する。
2)関連技術の説明
過去数十年にわたって、集積回路のフィーチャーの縮小が、成長し続ける半導体業界を支える駆動力となってきた。フィーチャーが縮小されればされるほど、半導体チップの限られた有効面積での機能単位の密度を増大することができる。例えば、トランジスタのサイズを縮小すると、数多くの論理及びメモリデバイスをマイクロプロセッサに組み込むことができ、より複雑な製品の製造につながる。
Claims (15)
- フィルムをパターン化する方法であって、
フォトレジスト層をデバイス層上に形成する工程と、
前記フォトレジスト層をパターン化して、フォトレジストテンプレートマスクを形成する工程と、
スペーサ形成材料層を、前記フォトレジストテンプレートマスク上に堆積する工程と、
前記スペーサ形成材料層をエッチングして、スペーサマスクを形成し、前記フォトレジストテンプレートマスクを露出する工程と、
前記フォトレジストテンプレートマスクを除去する工程と、
前記スペーサマスクの画像を、前記デバイス層に転写する工程とを含む方法。 - 前記スペーサ形成材料層が凝縮プロセスにより形成され、前記フォトレジストテンプレートマスクが昇華プロセスにより除去される請求項1記載の方法。
- アモルファスカーボンハードマスク層が前記デバイス層上及び前記フォトレジスト層下に配置され、前記スペーサマスクの前記画像は、前記画像が前記デバイス層に転写される前に、前記アモルファスカーボンハードマスクに転写される請求項1記載の方法。
- 上部ハードマスク層が、前記アモルファスカーボンハードマスク層上及び前記フォトレジスト層下に配置され、前記スペーサマスクの前記画像は、前記画像が前記アモルファスカーボンハードマスク層に転写される前に、前記上部ハードマスク層に転写され、前記上部ハードマスク層が、窒化ケイ素、アモルファスシリコン及び多結晶シリコンからなる群より選択される材料を含み、前記フォトレジストテンプレートマスクを除去する工程が、O2を用いてエッチングする工程を含む請求項3記載の方法。
- 前記スペーサ形成材料層が酸化ケイ素又は炭素ドープ酸化ケイ素を含み、前記スペーサ形成材料層をエッチングして、前記スペーサマスクを形成する工程が、C4F8、CH2F2及びCHF3からなる群より選択されるガスによるドライエッチングプロセスを用いる工程を含む請求項1記載の方法。
- フィルムをパターン化する方法であって、
フォトレジスト層をデバイス層上に形成する工程と、
前記フォトレジスト層をパターン化して、フォトレジストテンプレートマスクを形成する工程と、
スペーサ形成材料層を、前記フォトレジストテンプレートマスク上に堆積する工程と、
前記スペーサ形成材料層をエッチングして、スペーサマスクを形成し、前記フォトレジストテンプレートマスクを露出する工程と、
前記デバイス層又は前記スペーサマスクを溶融することなく、昇華により、前記フォトレジストテンプレートマスクを除去するのに十分な温度まで、前記フォトレジストテンプレートマスクを加熱する工程と、
前記スペーサマスクの画像を、前記デバイス層に転写する工程とを含む方法。 - 前記フォトレジストテンプレートマスクを加熱する工程が、摂氏約550度の温度まで加熱する工程からなる請求項6記載の方法。
- 前記スペーサ形成材料層が、酸化ケイ素又は炭素ドープ酸化ケイ素を含み、前記スペーサ形成材料層をエッチングして、前記スペーサマスクを形成する工程が、C4F8、CH2F2及びCHF3からなる群より選択されるガスによるドライエッチングプロセスを用いる工程を含む請求項6記載の方法。
- フィルムをパターン化する方法であって、
フォトレジスト層をデバイス層上に形成する工程と、
前記フォトレジスト層をパターン化して、フォトレジストテンプレートマスクを形成する工程と、
スペーサ形成材料層を、前記フォトレジストテンプレートマスクで直接凝縮する工程であって、前記フォトレジストテンプレートマスク及び前記デバイス層が、前記スペーサ形成材料層の均一且つコンフォーマルな層を提供するのに十分低い温度に維持される工程と、
前記スペーサ形成材料層をエッチングして、スペーサマスクを形成し、前記フォトレジストテンプレートマスクを露出する工程と、
前記フォトレジストテンプレートマスクを除去する工程と、
前記スペーサマスクの画像を、前記デバイス層に転写する工程とを含む方法。 - 前記フォトレジストテンプレートマスク及び前記デバイス層が、前記スペーサ形成材料層の凝縮中、摂氏0〜100度の範囲の温度に維持される請求項9記載の方法。
- 前記スペーサ形成材料層が、5〜15%の範囲の炭素原子の原子濃度を有する炭素ドープ酸化ケイ素を含む請求項9記載の方法。
- 前記スペーサ形成材料層をエッチングして、前記スペーサマスクを形成する工程が、C4F8、CH2F2及びCHF3からなる群より選択されるガスによるドライエッチングプロセスを用いる工程を含む請求項11記載の方法。
- 前記フォトレジストテンプレートマスクを除去する工程が、前記デバイス層又は前記スペーサマスクを溶融することなく、昇華により、前記フォトレジストテンプレートマスクを除去するのに十分な温度まで、前記フォトレジストテンプレートマスクを加熱する工程を含む請求項9記載の方法。
- 前記フォトレジストテンプレートマスクを加熱する工程が、摂氏約550度の温度まで加熱する工程からなる請求項13記載の方法。
- 前記フォトレジストテンプレートマスクを除去する工程が、O2を用いてエッチングする工程を含む請求項9記載の方法。
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US98305807P | 2007-10-26 | 2007-10-26 | |
US60/983,058 | 2007-10-26 |
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JP (1) | JP5671202B2 (ja) |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010085977A (ja) * | 2008-09-03 | 2010-04-15 | Shin-Etsu Chemical Co Ltd | パターン形成方法 |
JP2010287890A (ja) * | 2009-06-09 | 2010-12-24 | Asml Netherlands Bv | リソグラフィ方法及びリソグラフィ装置 |
JP2011071279A (ja) * | 2009-09-25 | 2011-04-07 | Toshiba Corp | 半導体装置の製造方法 |
JP2014011191A (ja) * | 2012-06-27 | 2014-01-20 | Tokyo Electron Ltd | エッチング方法 |
JP2017219617A (ja) * | 2016-06-06 | 2017-12-14 | 東京エレクトロン株式会社 | パターン形成方法 |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
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US7914974B2 (en) * | 2006-08-18 | 2011-03-29 | Brewer Science Inc. | Anti-reflective imaging layer for multiple patterning process |
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Also Published As
Publication number | Publication date |
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TWI493598B (zh) | 2015-07-21 |
TW200935496A (en) | 2009-08-16 |
CN101539721B (zh) | 2013-05-22 |
JP5671202B2 (ja) | 2015-02-18 |
US20090111281A1 (en) | 2009-04-30 |
CN101539721A (zh) | 2009-09-23 |
KR20090042748A (ko) | 2009-04-30 |
KR101140534B1 (ko) | 2012-05-02 |
US8357618B2 (en) | 2013-01-22 |
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