JP2013010956A - ポリマー組成物およびこれを含むフォトレジスト - Google Patents
ポリマー組成物およびこれを含むフォトレジスト Download PDFInfo
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- JP2013010956A JP2013010956A JP2012140619A JP2012140619A JP2013010956A JP 2013010956 A JP2013010956 A JP 2013010956A JP 2012140619 A JP2012140619 A JP 2012140619A JP 2012140619 A JP2012140619 A JP 2012140619A JP 2013010956 A JP2013010956 A JP 2013010956A
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- alkyl
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- monomer
- polymer
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- 229920000642 polymer Polymers 0.000 title claims abstract description 105
- 229920002120 photoresistant polymer Polymers 0.000 title claims abstract description 50
- 239000000203 mixture Substances 0.000 title claims description 44
- 239000000178 monomer Substances 0.000 claims abstract description 86
- 239000003999 initiator Substances 0.000 claims abstract description 22
- 239000012986 chain transfer agent Substances 0.000 claims abstract description 17
- 150000002596 lactones Chemical class 0.000 claims abstract description 15
- 125000000217 alkyl group Chemical group 0.000 claims description 51
- 125000003118 aryl group Chemical group 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 25
- 150000002148 esters Chemical class 0.000 claims description 24
- 229910052799 carbon Inorganic materials 0.000 claims description 23
- 229910052731 fluorine Inorganic materials 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 21
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims description 18
- 125000003367 polycyclic group Chemical group 0.000 claims description 17
- 125000006651 (C3-C20) cycloalkyl group Chemical group 0.000 claims description 16
- -1 sulfonamide anion Chemical class 0.000 claims description 16
- 238000006116 polymerization reaction Methods 0.000 claims description 14
- 150000001768 cations Chemical class 0.000 claims description 13
- 125000002733 (C1-C6) fluoroalkyl group Chemical group 0.000 claims description 12
- 125000002950 monocyclic group Chemical group 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 11
- 125000003709 fluoroalkyl group Chemical group 0.000 claims description 9
- 125000003545 alkoxy group Chemical group 0.000 claims description 7
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 7
- 229910052740 iodine Inorganic materials 0.000 claims description 7
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 150000002825 nitriles Chemical class 0.000 claims description 4
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims description 4
- 125000000923 (C1-C30) alkyl group Chemical group 0.000 claims description 3
- 125000000129 anionic group Chemical group 0.000 claims description 3
- 125000004104 aryloxy group Chemical group 0.000 claims description 3
- 125000004407 fluoroaryl group Chemical group 0.000 claims description 3
- 125000000962 organic group Chemical group 0.000 claims description 3
- 229940124530 sulfonamide Drugs 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 3
- 125000006376 (C3-C10) cycloalkyl group Chemical group 0.000 claims description 2
- 125000004428 fluoroalkoxy group Chemical group 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 30
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 26
- 239000002904 solvent Substances 0.000 description 26
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 23
- 239000000243 solution Substances 0.000 description 18
- 238000005481 NMR spectroscopy Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 15
- 239000007787 solid Substances 0.000 description 15
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 13
- 229940116333 ethyl lactate Drugs 0.000 description 13
- 238000005227 gel permeation chromatography Methods 0.000 description 13
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 12
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 12
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 10
- 229920001577 copolymer Polymers 0.000 description 10
- 238000009472 formulation Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 10
- 238000010526 radical polymerization reaction Methods 0.000 description 8
- 239000004094 surface-active agent Substances 0.000 description 8
- PPXAHQRRLKQYTG-UHFFFAOYSA-N 2-phenylpropan-2-yl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)(C)C1=CC=CC=C1 PPXAHQRRLKQYTG-UHFFFAOYSA-N 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 7
- ICURIFUTRQEJPA-UHFFFAOYSA-N [3,5-bis(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)cyclohexyl] 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CC(C(O)(C(F)(F)F)C(F)(F)F)CC(C(O)(C(F)(F)F)C(F)(F)F)C1 ICURIFUTRQEJPA-UHFFFAOYSA-N 0.000 description 7
- 150000001450 anions Chemical class 0.000 description 7
- 230000005855 radiation Effects 0.000 description 7
- 235000012431 wafers Nutrition 0.000 description 7
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 6
- 238000003828 vacuum filtration Methods 0.000 description 6
- 101100502727 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) fex-1 gene Proteins 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000012712 reversible addition−fragmentation chain-transfer polymerization Methods 0.000 description 5
- 0 *C(C(OC(CCO1)C1=O)=O)=C Chemical compound *C(C(OC(CCO1)C1=O)=O)=C 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 150000001735 carboxylic acids Chemical class 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 125000001153 fluoro group Chemical group F* 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 description 4
- XWRLFRAERDBKFQ-UHFFFAOYSA-N 1,1-difluoro-2-(2-methylprop-2-enoyloxy)ethanesulfonate;1-phenyldibenzothiophen-5-ium Chemical compound CC(=C)C(=O)OCC(F)(F)S([O-])(=O)=O.[SH+]1C2=CC=CC=C2C2=C1C=CC=C2C1=CC=CC=C1 XWRLFRAERDBKFQ-UHFFFAOYSA-N 0.000 description 3
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 description 3
- AISZNMCRXZWVAT-UHFFFAOYSA-N 2-ethylsulfanylcarbothioylsulfanyl-2-methylpropanenitrile Chemical compound CCSC(=S)SC(C)(C)C#N AISZNMCRXZWVAT-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000012988 Dithioester Substances 0.000 description 3
- 239000012987 RAFT agent Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 125000002877 alkyl aryl group Chemical group 0.000 description 3
- JHRWWRDRBPCWTF-OLQVQODUSA-N captafol Chemical compound C1C=CC[C@H]2C(=O)N(SC(Cl)(Cl)C(Cl)Cl)C(=O)[C@H]21 JHRWWRDRBPCWTF-OLQVQODUSA-N 0.000 description 3
- 150000007942 carboxylates Chemical class 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 3
- 125000005022 dithioester group Chemical group 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000004528 spin coating Methods 0.000 description 3
- WLOQLWBIJZDHET-UHFFFAOYSA-N triphenylsulfonium Chemical compound C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WLOQLWBIJZDHET-UHFFFAOYSA-N 0.000 description 3
- 239000012953 triphenylsulfonium Substances 0.000 description 3
- CHRJZRDFSQHIFI-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;styrene Chemical compound C=CC1=CC=CC=C1.C=CC1=CC=CC=C1C=C CHRJZRDFSQHIFI-UHFFFAOYSA-N 0.000 description 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 2
- WADSJYLPJPTMLN-UHFFFAOYSA-N 3-(cycloundecen-1-yl)-1,2-diazacycloundec-2-ene Chemical compound C1CCCCCCCCC=C1C1=NNCCCCCCCC1 WADSJYLPJPTMLN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000007877 V-601 Substances 0.000 description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- CSCPPACGZOOCGX-WFGJKAKNSA-N acetone d6 Chemical compound [2H]C([2H])([2H])C(=O)C([2H])([2H])[2H] CSCPPACGZOOCGX-WFGJKAKNSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- NZNMSOFKMUBTKW-UHFFFAOYSA-N cyclohexanecarboxylic acid Chemical compound OC(=O)C1CCCCC1 NZNMSOFKMUBTKW-UHFFFAOYSA-N 0.000 description 2
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- 125000000524 functional group Chemical group 0.000 description 2
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 2
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- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
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- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
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- 230000007935 neutral effect Effects 0.000 description 2
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- MSLTZKLJPHUCPU-WNQIDUERSA-M (2s)-2-hydroxypropanoate;tetrabutylazanium Chemical compound C[C@H](O)C([O-])=O.CCCC[N+](CCCC)(CCCC)CCCC MSLTZKLJPHUCPU-WNQIDUERSA-M 0.000 description 1
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- QMBSJPZHUJCMJU-UHFFFAOYSA-N 2-(2-ethoxyethoxy)propanoic acid Chemical compound CCOCCOC(C)C(O)=O QMBSJPZHUJCMJU-UHFFFAOYSA-N 0.000 description 1
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- 101100439208 Caenorhabditis elegans cex-1 gene Proteins 0.000 description 1
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- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
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- 101150109354 FEX2 gene Proteins 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 101100534471 Homo sapiens STAB2 gene Proteins 0.000 description 1
- 101100460719 Mus musculus Noto gene Proteins 0.000 description 1
- 101100202291 Mus musculus Slc26a6 gene Proteins 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 102100024470 Stabilin-2 Human genes 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本明細書において開示されるのは狭い多分散度(例えば、Mw/Mn<2.0)の(メタ)アクリラートベースのポリマーであり、これは重合性(メタ)アクリラートモノマーとして導入されてかつこのポリマー鎖に結合したイオン性光酸発生剤(PAG)を含む。このPAGは好ましくは結合基(tethering group)によってアニオンに結合される。このポリマーは、塩基反応性官能基、例えば、カルボン酸基などをマスクする高活性化エネルギー(Ea)酸感受性保護基(場合によっては本明細書において「脱離基」と称される)を有するモノマー;塩基可溶性基、例えば、ヘキサフルオロイソプロパノール基、フェノール系OHなどを有するモノマー;並びにラクトン含有モノマーをさらに含む。
1,1−ジフルオロ−2−(メタクリロイルオキシ)エタン−1−スルホン酸トリエチルアンモニウム(4.00g、12.1mmol)および臭化フェニルジベンゾチオフェニウム(4.50g、31.2mmol)が、30mLのジクロロメタンおよび30mLの蒸留脱イオン水と共に、100mL丸底フラスコに入れられた。この混合物は激しく一晩攪拌された。攪拌が停止させられ、この混合物は2つの透明な層に別れ、有機相は30mLの1%塩酸水溶液で2回洗浄され、そして30mLの蒸留脱イオン水で5回洗浄された。ヒドロキノン(1mg)が添加され、ロータリーエバポレーションによってジクロロメタンが除かれ、固体として生成物を得た(3.9g、80%収率)。1H NMR(500MHz、CDCl3)δ8.2(m,4H)、7.8(t,2H)、7.7(d,2H)、7.6(m,3H)、7.5(t,2H)、6.2(s,1H)、5.6(s,1H)、4.9(m,2H)、1.9(s,3H)。19F NMR(300MHz、アセトン−d6)δ−115.8(s,2F)。
248nm(DUV)および13.4nm(EUV)波長でのリソグラフィデータを得るために、以下の表1に示される組成物について、配合物実施例1および2(CEx1および2)並びに配合物比較例1〜3(CFEx1〜3)が準備された。
ポリマー、0.5または1重量%で乳酸エチル(EL)に溶かされたテトラヒドロキシイソプロピルエチレンジアミンクエンチャー溶液、乳酸エチルに溶かされた0.5重量%のOmnova(オムノバ)PF656界面活性剤(オムノバから入手可能)、並びに追加のELおよびメチル2−ヒドロキシブチラート(HBM)溶媒を表1に示された量で一緒にすることによって、ポジティブトーンフォトレジスト組成物が製造された。この配合された溶液は0.2μmPTFEフィルタを通された。
フォトスピードは248nm露光で得られた;クリアのための線量(ドース ツー クリア;dose to clear)値(E0)(ミリジュール/平方センチメートル、mJ/cm2)は表2に示される。現像後の未露光膜厚さ損失(unexposed film thickness loss;UFTL)も得られた;UFTL値(nm)は表2に示される。
以下の表2に示されるように、フォトスピード(クリアのための線量(E0);測定されたライン幅についてのドース−ツー−サイズ(dose−to−size)、Es)、測定されたライン幅(nm)およびLWRデータが、28nmフィーチャサイズ(CD)を目標にするライン/スペースフィーチャ(1:1ピッチ)について得られた。
Claims (11)
- 式(I)を有する酸脱保護性モノマーと、式(II)を有する塩基可溶性モノマーと、式(III)のラクトン含有モノマーと、式(IV)の光酸発生モノマーとを含むモノマー、
式(IX)の連鎖移動剤、並びに
場合によっては開始剤
の重合生成物を含むポリマー:
式中、各Raは独立してH、F、C1−10アルキルまたはC1−10フルオロアルキルであり、
Rbは独立してC1−20アルキル、C3−20シクロアルキル、C6−20アリールまたはC7−20アラルキルであり、および各Rbは別々に分かれているかまたは少なくとも1つのRbが隣のRbに結合されて環構造を形成しており、
Q1はエステル含有もしくはエステル非含有のC1−20アルキル、C3−20シクロアルキル、C6−20アリールまたはC7−20アラルキルであり、
Wは−C(=O)−OH、−C(CF3)2OH、−NH−SO2−Y1(式中、Y1はFまたはC1−4ペルフルオロアルキルである)、芳香族−OH、または前記のもののいずれかとビニルエーテルとの付加物を含む塩基反応性基であり、
aは1〜3の整数であり、
Lは単環式、多環式または縮合多環式C4−20ラクトン含有基であり、
Q2はエステル含有もしくはエステル非含有であって、かつフッ素化されているかもしくはフッ素化されていない、C1−20アルキル、C3−20シクロアルキル、C6−20アリールまたはC7−20アラルキル基であり、
Aはエステル含有もしくはエステル非含有であって、かつフッ素化されているかもしくはフッ素化されていない、C1−20アルキル、C3−20シクロアルキル、C6−20アリールまたはC7−20アラルキルであり、
Zはスルホナート、スルホンアミドのアニオン、またはスルホンイミドのアニオンを含むアニオン性部分であり、
Gは式(V)を有しており:
式中、XはSまたはIであり、各Rcはハロゲン化されているかもしくはハロゲン化されておらず、独立してC1−30アルキル基、多環式もしくは単環式C3−30シクロアルキル基、多環式もしくは単環式C4−30アリール基であり、ここでXがSの場合には、場合によっては、Rc基の1つが単結合によって隣の1つのRc基に結合されている;zは2または3であり、ここでXがIの場合にはzは2であり、またはXがSの場合にはzは3である:
式(IX)中、
Zはy価のC1−20有機基であり、
xは0または1であり、
Rdは置換もしくは非置換のC1−20アルキル、C3−20シクロアルキル、C6−20アリール、またはC7−20アラルキルである。 - Aが−[(C(Re)2)xC(=O)O]c−(C(Rf)2)y(CF2)z−基、またはo−、m−もしくはp−置換−C6Rg 4−基であり、式中、各Re、RfおよびRgはそれぞれ独立してH、F、C1−6フルオロアルキルまたはC1−6アルキルであり、cは0または1であり、xは1〜10の整数であり、yおよびzは独立して0〜10の整数であり、並びに合計y+zは少なくとも1である、
請求項1〜3のいずれか1項に記載のポリマー。 - Gが式(VI)、(VII)または(VIII)を有する請求項1〜5のいずれか1項に記載のポリマー:
式中、XはIまたはSであり、各Rh、Ri、RjおよびRkはそれぞれ独立して、ヒドロキシ、ニトリル、ハロゲン、C1−10アルキル、C1−10フルオロアルキル、C1−10アルコキシ、C1−10フルオロアルコキシ、C6−20アリール、C6−20フルオロアリール、C6−20アリールオキシまたはC6−20フルオロアリールオキシであり、Ar1およびAr2は独立してC10−30の縮合または単結合多環式アリール基であり;XがIの場合にはR1は孤立電子対であり、またはXがSの場合にはR1はC6−20アリール基である;pは2または3の整数であり、XがIの場合にはpは2であり、XがSの場合にはpは3である;qおよびrはそれぞれ独立して0〜5の整数であり、sおよびtはそれぞれ独立して0〜4の整数である。 - 請求項1〜8のいずれか1項に記載のポリマーを含むフォトレジスト組成物。
- (a)基体表面上のパターン形成される1以上の層を有する基体、および
(b)パターン形成される1以上の層上の、請求項9に記載のフォトレジスト組成物の層、
を含むコーティングされた基体。 - 請求項1〜8のいずれか1項に記載の前記モノマーを、前記連鎖移動剤の存在下でラジカル的にまたは熱的に開始させることを含む、ポリマーを形成する方法。
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| WO2019181228A1 (ja) * | 2018-03-19 | 2019-09-26 | 株式会社ダイセル | フォトレジスト用樹脂、フォトレジスト用樹脂の製造方法、フォトレジスト用樹脂組成物、及びパターン形成方法 |
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| US9229319B2 (en) * | 2013-12-19 | 2016-01-05 | Rohm And Haas Electronic Materials Llc | Photoacid-generating copolymer and associated photoresist composition, coated substrate, and method of forming an electronic device |
| CN104211867A (zh) * | 2014-08-21 | 2014-12-17 | 苏州瑞红电子化学品有限公司 | 一种分子量窄分布的丙烯酸酯类共聚物及其光刻胶组合物 |
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| US9815930B2 (en) | 2015-08-07 | 2017-11-14 | Rohm And Haas Electronic Materials Llc | Block copolymer and associated photoresist composition and method of forming an electronic device |
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| KR102164614B1 (ko) * | 2017-11-24 | 2020-10-12 | 주식회사 엘지화학 | 포토레지스트 조성물 및 이를 이용한 포토레지스트 필름 |
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| EP2540750A1 (en) | 2013-01-02 |
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