JP2006508388A - 有機乱反射防止膜組成物およびこれを利用したパターン形成方法 - Google Patents
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/105—Esters; Ether-esters of monocarboxylic acids with phenols
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- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/18—Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
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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
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Abstract
Description
また、本発明は、(a)前記有機乱反射防止膜組成物を被エッチング層上に塗布する段階、(b)焼成工程で前記有機乱反射防止膜組成物を架橋させ有機乱反射防止膜を形成する段階、(c)前記有機乱反射防止膜上にフォトレジストを塗布し、露光および現像してフォトレジストパターンを形成する段階、ならびに(d)前記フォトレジストパターンをエッチングマスクとして有機乱反射防止膜をエッチングし、パターンを形成する段階を含むパターン形成方法を提供する。
半導体製造工程中、ウエハー上に本発明の前記有機乱反射防止膜組成物を塗布した後、熱工程を行えば、熱酸発生剤から酸が発生する。このように発生した酸によって架橋剤が活性を示し、光吸収剤および前記化学式1の接着性増加剤が前記架橋剤によって架橋結合を形成して、感光剤が溶解されない架橋構造の有機乱反射防止膜が形成される。
また、本発明の有機乱反射防止膜組成物は、乱反射を抑制するために露光光源を吸収する物質を含んでいなければならない。従来の有機乱反射防止膜組成物に一般に広く使用される光吸収剤は全て使用することができる。特に、下記化学式3の高分子光吸収剤が好ましい。
本発明の有機乱反射防止膜組成物においては、使用される用途によって各成分の含量を適切に調節することができる。各成分の含量調節によって有機乱反射防止膜組成物の光吸収係数(k value)が変わる。本発明の有機乱反射防止膜組成物中の光吸収剤含量は、架橋剤100重量部に対して30ないし400重量部であることが好ましい。一般に大きなk値を得るためには、光吸収物質である前記化学式3の光吸収剤含量を増やすことが好ましい。
テトラヒドロフラン50gおよびメチルエチルケトン50gからなる溶媒にメタクリル酸9−アントラセンメチル11g、メタクリル酸2−ヒドロキシエチル7g、メタクリル酸メチル2g、およびアゾビスイソブチロニトリル(AIBN)0.5gを入れて溶解した後、66℃で8時間反応させた。反応完了後、前記溶液を1Lのエチルエーテルに沈殿させ真空乾燥して下記化学式3aのポリ(メタクリル酸9−アントラセンメチル/メタクリル酸2−ヒドロキシエチル/メタクリル酸メチル)を得た。収率は80%であった。図1に示すように、NMRスペクトル分析の結果、前記合成法によって合成された化合物は下記化学式3aの高分子光吸収剤であった。
下記表1に記載された含量で、下記化学式1aで示される接着性増加剤、下記化学式2aで示される架橋剤、下記化学式3aで示される光吸収剤、および下記化学式4aで示される熱酸発生剤をシクロヘキサン溶媒39gに溶解させた後、0.2μmの微細フィルターに通過させて有機乱反射防止膜組成物を製造した。
Claims (11)
- (a)架橋剤100重量部、
(b)光吸収剤30ないし400重量部、
(c)熱酸発生剤10ないし200重量部、
(d)化学式1の接着性増加剤30ないし400重量部、および
(e)有機溶媒1,000ないし10,000重量部
を含むことを特徴とする請求項1に記載の有機乱反射防止膜組成物。 - (a)請求項1に記載の有機乱反射防止膜組成物を被エッチング層上に塗布する段階、
(b)焼成工程で前記有機乱反射防止膜組成物を架橋させ有機乱反射防止膜を形成する段階、
(c)前記有機乱反射防止膜上にフォトレジストを塗布し、露光および現像してフォトレジストパターンを形成する段階、ならびに
(d)前記フォトレジストパターンをエッチングマスクとして有機乱反射防止膜をエッチングする段階
を含むパターン形成方法。 - (b)段階の焼成工程が、150ないし300℃で1ないし5分間行われることを特徴とする請求項6に記載のパターン形成方法。
- (c)段階の露光前および/または露光後に、焼成工程をさらに実施することを特徴とする請求項6に記載のパターン形成方法。
- 焼成工程が、70ないし200℃で行われることを特徴とする請求項8に記載のパターン形成方法。
- (c)段階の露光光源が、F2レーザー(157nm)、ArF(193nm)、KrF(248nm)またはEUV等の遠紫外線、E−ビーム、X線、もしくはイオンビームであることを特徴とする請求項6に記載のパターン形成方法。
- 請求項6、7、8、9または10記載の方法で製造される半導体素子。
Applications Claiming Priority (2)
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KR1020020074262A KR100832247B1 (ko) | 2002-11-27 | 2002-11-27 | 유기 난반사 방지막 조성물 및 이를 이용한 패턴 형성방법 |
PCT/KR2003/002479 WO2004048458A1 (en) | 2002-11-27 | 2003-11-18 | Organic bottom anti-reflective composition and patterning method using the same |
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JP2006508388A true JP2006508388A (ja) | 2006-03-09 |
JP4318642B2 JP4318642B2 (ja) | 2009-08-26 |
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US (1) | US20060153987A1 (ja) |
EP (1) | EP1578855A4 (ja) |
JP (1) | JP4318642B2 (ja) |
KR (1) | KR100832247B1 (ja) |
CN (1) | CN100379807C (ja) |
AU (1) | AU2003284724A1 (ja) |
TW (1) | TWI313790B (ja) |
WO (1) | WO2004048458A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006227614A (ja) * | 2005-02-05 | 2006-08-31 | Rohm & Haas Electronic Materials Llc | オーバーコートされるフォトレジストと共に使用するためのコーティング組成物 |
JP2008039814A (ja) * | 2006-08-01 | 2008-02-21 | Nissan Chem Ind Ltd | 傾斜構造を有するリソグラフィー用レジスト下層膜 |
WO2010061774A1 (ja) * | 2008-11-27 | 2010-06-03 | 日産化学工業株式会社 | アウトガス発生が低減されたレジスト下層膜形成組成物 |
JP2013156647A (ja) * | 2006-10-18 | 2013-08-15 | Az Electronic Materials Usa Corp | 反射防止コーティング組成物 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100611391B1 (ko) * | 2003-11-06 | 2006-08-11 | 주식회사 하이닉스반도체 | 유기 난반사 방지막 조성물 및 이를 이용한 패턴 형성 방법 |
KR100732763B1 (ko) * | 2005-10-31 | 2007-06-27 | 주식회사 하이닉스반도체 | 유기 반사 방지막 중합체, 이를 포함하는 유기 반사 방지막조성물 및 이를 이용한 포토레지스트의 패턴 형성 방법 |
EP2138897B1 (en) * | 2007-03-20 | 2016-08-03 | Fujitsu Limited | Conductive anti-reflection film, method for formation of resist pattern |
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TW576859B (en) * | 2001-05-11 | 2004-02-21 | Shipley Co Llc | Antireflective coating compositions |
KR20030059970A (ko) * | 2002-01-04 | 2003-07-12 | 주식회사 몰커스 | 패턴 무너짐 현상을 극복하기 위한 유기 난반사 방지막조성물 및 이를 이용한 패턴 형성방법 |
KR100480235B1 (ko) * | 2002-07-18 | 2005-04-06 | 주식회사 하이닉스반도체 | 유기 반사방지막 조성물 및 이를 이용한 포토레지스트의패턴 형성 방법 |
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2002
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2003
- 2003-11-18 CN CNB2003801043748A patent/CN100379807C/zh not_active Expired - Lifetime
- 2003-11-18 EP EP03774253A patent/EP1578855A4/en not_active Withdrawn
- 2003-11-18 JP JP2004555097A patent/JP4318642B2/ja not_active Expired - Fee Related
- 2003-11-18 WO PCT/KR2003/002479 patent/WO2004048458A1/en active Application Filing
- 2003-11-18 US US10/536,512 patent/US20060153987A1/en not_active Abandoned
- 2003-11-18 AU AU2003284724A patent/AU2003284724A1/en not_active Abandoned
- 2003-11-25 TW TW092133101A patent/TWI313790B/zh not_active IP Right Cessation
Cited By (7)
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JP2006227614A (ja) * | 2005-02-05 | 2006-08-31 | Rohm & Haas Electronic Materials Llc | オーバーコートされるフォトレジストと共に使用するためのコーティング組成物 |
JP2008039814A (ja) * | 2006-08-01 | 2008-02-21 | Nissan Chem Ind Ltd | 傾斜構造を有するリソグラフィー用レジスト下層膜 |
JP2013156647A (ja) * | 2006-10-18 | 2013-08-15 | Az Electronic Materials Usa Corp | 反射防止コーティング組成物 |
WO2010061774A1 (ja) * | 2008-11-27 | 2010-06-03 | 日産化学工業株式会社 | アウトガス発生が低減されたレジスト下層膜形成組成物 |
JPWO2010061774A1 (ja) * | 2008-11-27 | 2012-04-26 | 日産化学工業株式会社 | アウトガス発生が低減されたレジスト下層膜形成組成物 |
JP2015127821A (ja) * | 2008-11-27 | 2015-07-09 | 日産化学工業株式会社 | アウトガス発生が低減されたレジスト下層膜形成組成物 |
US10437150B2 (en) | 2008-11-27 | 2019-10-08 | Nissan Chemical Industries, Ltd. | Composition for forming resist underlayer film with reduced outgassing |
Also Published As
Publication number | Publication date |
---|---|
TWI313790B (en) | 2009-08-21 |
EP1578855A1 (en) | 2005-09-28 |
AU2003284724A1 (en) | 2004-06-18 |
CN1735655A (zh) | 2006-02-15 |
EP1578855A4 (en) | 2007-10-24 |
TW200413850A (en) | 2004-08-01 |
US20060153987A1 (en) | 2006-07-13 |
CN100379807C (zh) | 2008-04-09 |
WO2004048458A1 (en) | 2004-06-10 |
JP4318642B2 (ja) | 2009-08-26 |
KR20040046350A (ko) | 2004-06-05 |
KR100832247B1 (ko) | 2008-05-28 |
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