JP7004671B2 - ネガ型フォトレジストを用いたパターニング工程におけるlwr改善方法及び組成物 - Google Patents
ネガ型フォトレジストを用いたパターニング工程におけるlwr改善方法及び組成物 Download PDFInfo
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- JP7004671B2 JP7004671B2 JP2018557340A JP2018557340A JP7004671B2 JP 7004671 B2 JP7004671 B2 JP 7004671B2 JP 2018557340 A JP2018557340 A JP 2018557340A JP 2018557340 A JP2018557340 A JP 2018557340A JP 7004671 B2 JP7004671 B2 JP 7004671B2
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Images
Classifications
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
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- G03F7/325—Non-aqueous compositions
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- G—PHYSICS
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
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- G03F7/32—Liquid compositions therefor, e.g. developers
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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
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
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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
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
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- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/40—Treatment after imagewise removal, e.g. baking
-
- 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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/40—Treatment after imagewise removal, e.g. baking
- G03F7/405—Treatment with inorganic or organometallic reagents after imagewise removal
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- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Materials For Photolithography (AREA)
Description
本発明は、ネガ型フォトレジストのパターニング工程におけるパターンのLWRを改善するためのパターン処理用組成物、及び処理工程方法に関する。
実施例1
2-プロパノール80重量%、トリエチルアミン0.1重量%、及び2-ヘプタノール19.9重量%が含まれている、フォトレジストパターンのLWR改善用工程液を次の方法で製造した。
2-プロパノール、トリエチルアミン、2-ヘプタノールを投入して6時間攪拌した後、0.02μmのフィルターに通過させて、フォトレジストパターンのLWR改善用工程液を製造した。
表1に記載されているような組成によって、実施例1と同様の方法でフォトレジストパターンのLWR改善用工程液を製造した。
一般に、半導体素子の製造工程中にネガトーン現像工程の最終洗浄液として使用される酢酸ブチルを準備した。
ArFに感応するフォトレジストを300mmのシリコンウエハーにスピン(spin)コーター(coater)を用いて1500rpmの速度でスピンコーティングし、120℃にて60秒間ホットプレート(hot plate)で乾燥させた後(SB:Soft bake)、ArFが発生する露光機を用いて露光させ、しかる後に、120℃にて60秒間ホットプレート(hot plate)で乾燥させ(PEB:Post exposure bake)、ネガトーン現像液(酢酸ブチル)で30秒間現像(ネガトーン現像)する。その後、実施例1で製造された工程液を用いて100rpmで15mL/sの速度で10秒間噴射した後、20秒間静置(puddle)し、2000rpmの回転数で20秒間ウエハーを回転させることにより、フォトレジストパターンの形成を完了した。このとき、形成されたパターンの大きさは50nmである。
工程液として、実施例1~実施例10でそれぞれ製造された工程液を使用すること、及びパターン形成方法中の静置(puddle)時間以外は実験例1と同様の方法でパターン形成を行った。
工程液として比較例の酢酸ブチルを使用すること及び静置時間以外は、実験例1と同様の方法でパターン形成を行った。
(1)CDU(Critical Dimension Uniformity)
Claims (2)
- ArFに感応するネガ型フォトレジストパターンの膨潤物質としてエチレングリコール90重量%、非露光パターン面を現像することが可能なアルカリ性物質としてトリメチルアミン0.1重量%、これらを溶かして混合する溶媒として2-ヘプタノール8.89~9.89重量%、及び非イオン性界面活性剤としてポリオキシエチレンノニルフェニルエーテル0.01~1重量%を含んでなる、パターンのLWRを改善する組成物。
- 請求項1に記載のパターンのLWRを改善する組成物を用いて、ネガ型フォトレジストを用いたパターン形成工程でLWRを改善するために現像工程の後に連続工程でパターニングされたウエハー上に、
1)組成物を噴射し、
2)一定時間静置し、
3)スピンドライ方式で乾燥させる過程を経るパターンのLWRを改善する方法であって、
組成物を5~50mL/sの速度で噴射し、10~20秒静置する、パターンのLWRを改善する方法。
Applications Claiming Priority (3)
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KR1020160055180A KR101730839B1 (ko) | 2016-05-04 | 2016-05-04 | 네가톤 포토레지스트를 이용한 패터닝 공정에서 lwr 개선 방법과 조성물 |
KR10-2016-0055180 | 2016-05-04 | ||
PCT/KR2017/004450 WO2017191930A1 (ko) | 2016-05-04 | 2017-04-26 | 네가톤 포토레지스트를 이용한 패터닝 공정에서 lwr 개선 방법과 조성물 |
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JP2019515350A JP2019515350A (ja) | 2019-06-06 |
JP7004671B2 true JP7004671B2 (ja) | 2022-01-21 |
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Citations (3)
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WO2014181748A1 (ja) | 2013-05-09 | 2014-11-13 | アーゼット・エレクトロニック・マテリアルズ(ルクセンブルグ)ソシエテ・ア・レスポンサビリテ・リミテ | リソグラフィー用リンス液およびそれを用いたパターン形成方法 |
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US7521405B2 (en) * | 2002-08-12 | 2009-04-21 | Air Products And Chemicals, Inc. | Process solutions containing surfactants |
JP3633595B2 (ja) * | 2001-08-10 | 2005-03-30 | 富士通株式会社 | レジストパターン膨潤化材料およびそれを用いた微小パターンの形成方法および半導体装置の製造方法 |
JP3858730B2 (ja) * | 2002-03-05 | 2006-12-20 | 富士通株式会社 | レジストパターン改善化材料およびそれを用いたパターンの製造方法 |
JP2008268742A (ja) * | 2007-04-24 | 2008-11-06 | Fujifilm Corp | パターン形成用表面処理剤、及び該処理剤を用いたパターン形成方法 |
KR20100017783A (ko) | 2007-06-12 | 2010-02-16 | 후지필름 가부시키가이샤 | 네가티브 톤 현상용 레지스트 조성물 및 이것을 사용한 패턴형성방법 |
JP2010039034A (ja) * | 2008-08-01 | 2010-02-18 | Fujifilm Corp | レジストパターン表面処理剤、レジスト組成物、それらを用いたレジストパターンの表面処理方法及びレジストパターンの形成方法 |
JP5537859B2 (ja) | 2009-07-31 | 2014-07-02 | 富士フイルム株式会社 | 化学増幅型レジスト組成物によるパターン形成用の処理液及びそれを用いたレジストパターン形成方法 |
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JP2009271259A (ja) | 2008-05-02 | 2009-11-19 | Fujifilm Corp | レジストパターン用表面処理剤および該表面処理剤を用いたレジストパターン形成方法 |
WO2014181748A1 (ja) | 2013-05-09 | 2014-11-13 | アーゼット・エレクトロニック・マテリアルズ(ルクセンブルグ)ソシエテ・ア・レスポンサビリテ・リミテ | リソグラフィー用リンス液およびそれを用いたパターン形成方法 |
JP2017107188A (ja) | 2015-12-09 | 2017-06-15 | ローム アンド ハース エレクトロニック マテリアルズ エルエルシーRohm and Haas Electronic Materials LLC | パターン処理法 |
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CN108475022A (zh) | 2018-08-31 |
US11187985B2 (en) | 2021-11-30 |
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