JP4210237B2 - フォトレジスト用化合物およびフォトレジスト用樹脂組成物 - Google Patents
フォトレジスト用化合物およびフォトレジスト用樹脂組成物 Download PDFInfo
- Publication number
- JP4210237B2 JP4210237B2 JP2004126370A JP2004126370A JP4210237B2 JP 4210237 B2 JP4210237 B2 JP 4210237B2 JP 2004126370 A JP2004126370 A JP 2004126370A JP 2004126370 A JP2004126370 A JP 2004126370A JP 4210237 B2 JP4210237 B2 JP 4210237B2
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- Prior art keywords
- group
- adamantane
- meth
- acid
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229920002120 photoresistant polymer Polymers 0.000 title claims description 41
- 239000011342 resin composition Substances 0.000 title claims description 29
- 150000001875 compounds Chemical class 0.000 title description 73
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 claims description 196
- 239000000178 monomer Substances 0.000 claims description 52
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 46
- 239000002253 acid Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 30
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 24
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims description 22
- 229920000642 polymer Polymers 0.000 claims description 22
- 125000000217 alkyl group Chemical group 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 20
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 13
- 125000005647 linker group Chemical group 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- DKDKCSYKDZNMMA-UHFFFAOYSA-N (3-hydroxy-1-adamantyl) prop-2-enoate Chemical compound C1C(C2)CC3CC1(O)CC2(OC(=O)C=C)C3 DKDKCSYKDZNMMA-UHFFFAOYSA-N 0.000 claims description 5
- RYMXEYMVZASVTF-UHFFFAOYSA-N (3,5,7-trihydroxy-1-adamantyl) prop-2-enoate Chemical compound C1C(C2)(O)CC3(O)CC1(O)CC2(OC(=O)C=C)C3 RYMXEYMVZASVTF-UHFFFAOYSA-N 0.000 claims description 3
- SLTRROUWQZQXRX-UHFFFAOYSA-N (3-hydroxy-5,7-dimethyl-1-adamantyl) prop-2-enoate Chemical compound C1C(C2)(C)CC3(O)CC1(C)CC2(OC(=O)C=C)C3 SLTRROUWQZQXRX-UHFFFAOYSA-N 0.000 claims description 3
- -1 N-substituted amino group Chemical group 0.000 description 139
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 64
- 238000006243 chemical reaction Methods 0.000 description 62
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 51
- 239000003054 catalyst Substances 0.000 description 43
- 238000007254 oxidation reaction Methods 0.000 description 38
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 36
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 34
- 229910052760 oxygen Inorganic materials 0.000 description 31
- 230000000737 periodic effect Effects 0.000 description 30
- 125000006239 protecting group Chemical group 0.000 description 30
- 239000001301 oxygen Substances 0.000 description 29
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 27
- 125000001424 substituent group Chemical group 0.000 description 27
- 238000006116 polymerization reaction Methods 0.000 description 25
- 150000002430 hydrocarbons Chemical group 0.000 description 23
- 230000003647 oxidation Effects 0.000 description 22
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 18
- 238000005886 esterification reaction Methods 0.000 description 18
- 125000003545 alkoxy group Chemical group 0.000 description 17
- 239000000203 mixture Substances 0.000 description 17
- 239000002904 solvent Substances 0.000 description 17
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 16
- 125000004453 alkoxycarbonyl group Chemical group 0.000 description 16
- 125000000524 functional group Chemical group 0.000 description 16
- 229920005989 resin Polymers 0.000 description 16
- 239000011347 resin Substances 0.000 description 16
- 125000003277 amino group Chemical group 0.000 description 15
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 14
- MCYBYTIPMYLHAK-UHFFFAOYSA-N adamantane-1,3,5-triol Chemical compound C1C(C2)CC3(O)CC1(O)CC2(O)C3 MCYBYTIPMYLHAK-UHFFFAOYSA-N 0.000 description 14
- 125000002723 alicyclic group Chemical group 0.000 description 14
- 125000003118 aryl group Chemical group 0.000 description 14
- 229910002091 carbon monoxide Inorganic materials 0.000 description 14
- 238000006473 carboxylation reaction Methods 0.000 description 14
- 229920001577 copolymer Polymers 0.000 description 14
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 150000001735 carboxylic acids Chemical class 0.000 description 12
- 125000005843 halogen group Chemical group 0.000 description 12
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 12
- 238000007796 conventional method Methods 0.000 description 11
- 230000032050 esterification Effects 0.000 description 11
- 239000003960 organic solvent Substances 0.000 description 11
- 238000006722 reduction reaction Methods 0.000 description 11
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 10
- 230000021523 carboxylation Effects 0.000 description 10
- 235000011054 acetic acid Nutrition 0.000 description 9
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 9
- 150000003949 imides Chemical group 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 8
- 125000002252 acyl group Chemical group 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000006396 nitration reaction Methods 0.000 description 8
- 150000007524 organic acids Chemical class 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 8
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 229910052772 Samarium Inorganic materials 0.000 description 7
- WPWORXFNZQPWJJ-UHFFFAOYSA-N [3,5-bis(1-hydroxyethoxy)-1-adamantyl] prop-2-enoate Chemical compound C1C(C2)CC3(OC(C)O)CC1(OC(O)C)CC2(OC(=O)C=C)C3 WPWORXFNZQPWJJ-UHFFFAOYSA-N 0.000 description 7
- 125000005907 alkyl ester group Chemical group 0.000 description 7
- 238000007112 amidation reaction Methods 0.000 description 7
- 150000008064 anhydrides Chemical class 0.000 description 7
- 125000000753 cycloalkyl group Chemical group 0.000 description 7
- 238000005984 hydrogenation reaction Methods 0.000 description 7
- 230000033444 hydroxylation Effects 0.000 description 7
- 238000005805 hydroxylation reaction Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- CFMZSMGAMPBRBE-UHFFFAOYSA-N 2-hydroxyisoindole-1,3-dione Chemical compound C1=CC=C2C(=O)N(O)C(=O)C2=C1 CFMZSMGAMPBRBE-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 150000008065 acid anhydrides Chemical class 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 6
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 150000004820 halides Chemical class 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 150000002923 oximes Chemical class 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 6
- UGVRGVIRHLMDHI-UHFFFAOYSA-N (3,5-dihydroxy-1-adamantyl) prop-2-enoate Chemical compound C1C(C2)CC3(O)CC1(O)CC2(OC(=O)C=C)C3 UGVRGVIRHLMDHI-UHFFFAOYSA-N 0.000 description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 229940052761 dopaminergic adamantane derivative Drugs 0.000 description 5
- 150000002170 ethers Chemical class 0.000 description 5
- 229910021472 group 8 element Inorganic materials 0.000 description 5
- 150000002373 hemiacetals Chemical class 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910017604 nitric acid Inorganic materials 0.000 description 5
- 150000002825 nitriles Chemical class 0.000 description 5
- 125000006574 non-aromatic ring group Chemical group 0.000 description 5
- 235000005985 organic acids Nutrition 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 125000003003 spiro group Chemical group 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 150000003623 transition metal compounds Chemical class 0.000 description 5
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 4
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 4
- 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 4
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 4
- IZSHZLKNFQAAKX-UHFFFAOYSA-N 5-cyclopenta-2,4-dien-1-ylcyclopenta-1,3-diene Chemical group C1=CC=CC1C1C=CC=C1 IZSHZLKNFQAAKX-UHFFFAOYSA-N 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000010718 Oxidation Activity Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000006359 acetalization reaction Methods 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000003426 co-catalyst Substances 0.000 description 4
- 238000004440 column chromatography Methods 0.000 description 4
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical class OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 239000012046 mixed solvent Substances 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- LMYTYLMNPLNZLY-UHFFFAOYSA-N 3,5,7-trihydroxyadamantane-1-carboxylic acid Chemical compound C1C(C2)(O)CC3(O)CC2(O)CC1(C(=O)O)C3 LMYTYLMNPLNZLY-UHFFFAOYSA-N 0.000 description 3
- IWQFALZHMTUZIS-UHFFFAOYSA-N 5-prop-2-enoyloxyadamantane-1,3-dicarboxylic acid Chemical compound C1C(C2)CC3(OC(=O)C=C)CC1(C(=O)O)CC2(C(O)=O)C3 IWQFALZHMTUZIS-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000002841 Lewis acid Substances 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- HFBMWMNUJJDEQZ-UHFFFAOYSA-N acryloyl chloride Chemical compound ClC(=O)C=C HFBMWMNUJJDEQZ-UHFFFAOYSA-N 0.000 description 3
- VLLNJDMHDJRNFK-UHFFFAOYSA-N adamantan-1-ol Chemical compound C1C(C2)CC3CC2CC1(O)C3 VLLNJDMHDJRNFK-UHFFFAOYSA-N 0.000 description 3
- PAVQGHWQOQZQEH-UHFFFAOYSA-N adamantane-1,3-dicarboxylic acid Chemical compound C1C(C2)CC3CC1(C(=O)O)CC2(C(O)=O)C3 PAVQGHWQOQZQEH-UHFFFAOYSA-N 0.000 description 3
- MOLCWHCSXCKHAP-UHFFFAOYSA-N adamantane-1,3-diol Chemical compound C1C(C2)CC3CC1(O)CC2(O)C3 MOLCWHCSXCKHAP-UHFFFAOYSA-N 0.000 description 3
- 150000001299 aldehydes Chemical class 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000007810 chemical reaction solvent Substances 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- DWAAFBYDPUVXAE-UHFFFAOYSA-N ditert-butyl 5-prop-2-enoyloxyadamantane-1,3-dicarboxylate Chemical compound C1C(C2)CC3(OC(=O)C=C)CC1(C(=O)OC(C)(C)C)CC2(C(=O)OC(C)(C)C)C3 DWAAFBYDPUVXAE-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
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- 150000008282 halocarbons Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 150000002576 ketones Chemical class 0.000 description 3
- 150000002596 lactones Chemical group 0.000 description 3
- 229910052747 lanthanoid Inorganic materials 0.000 description 3
- 150000002602 lanthanoids Chemical class 0.000 description 3
- 239000003446 ligand Substances 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- 150000003317 samarium compounds Chemical class 0.000 description 3
- 229910052706 scandium Inorganic materials 0.000 description 3
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 3
- 239000011949 solid catalyst Substances 0.000 description 3
- 229910052727 yttrium Inorganic materials 0.000 description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 3
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 2
- HFLCKUMNXPOLSN-UHFFFAOYSA-N (3,5-dihydroxy-1-adamantyl) 2-methylprop-2-enoate Chemical compound C1C(C2)CC3(O)CC2(O)CC1(OC(=O)C(=C)C)C3 HFLCKUMNXPOLSN-UHFFFAOYSA-N 0.000 description 2
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- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
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- 229910052737 gold Inorganic materials 0.000 description 1
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- 150000002367 halogens Chemical class 0.000 description 1
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- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
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- HTSJJVJDWAWPFP-UHFFFAOYSA-N tert-butyl 3-hydroxy-5-prop-2-enoyloxyadamantane-1-carboxylate Chemical compound C1C(C2)CC3(O)CC2(OC(=O)C=C)CC1(C(=O)OC(C)(C)C)C3 HTSJJVJDWAWPFP-UHFFFAOYSA-N 0.000 description 1
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- ZMZDMBWJUHKJPS-UHFFFAOYSA-N thiocyanic acid Chemical class SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 1
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- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- 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 1
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- 125000003774 valeryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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Landscapes
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Materials For Photolithography (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
で表される。
前記フォトレジスト用化合物において、R2〜R4のうち少なくとも2つの置換基が、ヒドロキシル基、ヒドロキシメチル基、カルボキシル基及び官能基から選択される基であるのが好ましく、また、R2〜R4のうち少なくとも2つの置換基が、ヒドロキシル基、アルコキシ基、アセタール又はヘミアセタール化により保護されたヒドロキシル基、カルボキシル基及びアルコキシカルボニル基から選択され、かつ異種の置換基であるのが好ましい。Xはエステル結合であってもよい。
本発明には、基材に形成された前記フォトレジスト用樹脂組成物の塗膜に、所定のパターンで露光し、現像してパターンを形成する方法も含まれる。
ヘミアセタール又はアセタール化に利用できるアルデヒド類としては、脂肪族アルデヒド(ホルムアルデヒド,アセトアルデヒドなどのC1-10アルデヒドなど)、芳香族アルデヒド(ベンズアルデヒド,アニスアルヒドなど)、複素環式アルデヒド(ニコチンアルデヒド,フルフラールなど)などが例示できる。
で表される(メタ)アクリル系単量体、この単量体に対応するアリル単量体などが例示できる。
置換基R11,R12,R13,R14で表される原子及び基は、それぞれ、前記式(1a)のR1,R2,R3,R4で表される原子及び基に対応している。
で表される化合物と、重合性不飽和結合を有するアルコール,カルボン酸,アミンおよびそれらの反応性誘導体から選択された少なくとも一種の重合性不飽和化合物(1d)とを、エステル化反応又はアミド化反応に供することにより得ることができる。この反応は、周期表3族元素化合物で構成された触媒の存在下で行ってもよい。
重合性アダマンタン誘導体(1a)(1b)の原料としてのアダマンタン誘導体(1c)は、アダマンタン類に、ヒドロキシル基、カルボキシル基、アミノ基およびそれらの反応性誘導体基から選択された少なくとも1つの反応性基を導入することにより調製できる。
前記式(1c)で表されるアダマンタン誘導体のうち、ヒドロキシル基を有する化合物は、慣用の酸化方法、例えば、硝酸やクロム酸を用いる酸化方法、触媒としてコバルト塩を用いる酸素酸化方法、生化学的酸化方法などにより得ることができ、アダマンタン類に、ハロゲン原子(例えば、臭素原子など)を導入し、硝酸銀や硫酸銀などの無機塩を用いて加水分解してヒドロキシル基を導入する方法により得ることもできる。好ましい方法では、下記式(2)で表されるイミド単位を有する化合物(以下、単にイミド化合物という場合がある)で構成された酸化触媒、又は上記イミド化合物(2)と助触媒とで構成された酸化触媒の存在下、前記式(1c)に対応する基質を酸素酸化することによりヒドロキシル基含有アダマンタン誘導体を得ることができる。
好ましい酸化触媒は、下記式(3)で表される。
[イミド化合物(2)]
前記式(2)で表されるイミド化合物のうち、前記式(3)で表される化合物において、置換基R21及びR22のうちハロゲン原子には、ヨウ素、臭素、塩素およびフッ素原子が含まれる。アルキル基には、例えば、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、s−ブチル、t−ブチル基などの直鎖状又は分岐鎖状C1-10アルキル基(好ましくはC1-6低級アルキル基、特にC1-4低級アルキル基)が含まれる。アリール基には、フェニル基、ナフチル基などが含まれ、シクロアルキル基には、シクロペンチル、シクロヘキシル、シクロオクチル基などが含まれる。アルコキシ基には、例えば、メトキシ、エトキシ、プロポキシ、イソプロポキシ、ブトキシ、イソブトキシ、t−ブトキシ基などのC1-10アルコキシ基(好ましくはC1-6低級アルコキシ基、特にC1-4低級アルコキシ基)が含まれる。
置換基R23〜R26において、アルキル基には、前記例示のアルキル基と同様のアルキル基、特にC1-6アルキル基が含まれ、アルコキシ基には、前記と同様のアルコキシ基、特にC1-4低級アルコキシ基、アルコキシカルボニル基には、前記と同様のアルコキシカルボニル基、特にC1-4低級アルコキシ−カルボニル基が含まれる。また、アシル基としては、前記と同様のアシル基、特にC1-6アシル基が例示され、ハロゲン原子としては、フッ素、塩素、臭素原子が例示できる。置換基R23〜R26は、通常、水素原子、C1-4アルキル基、カルボキシル基、ニトロ基、ハロゲン原子である場合が多い。
助触媒には、金属化合物、例えば、周期表2A族元素(マグネシウム,カルシウム,ストロンチウム,バリウムなど)、遷移金属化合物や、ホウ素化合物などのように周期表3B族元素(ホウ素B、アルミニウムAlなど)を含む化合物が含まれる。助触媒は、一種又は二種以上組合わせて使用できる。
アダマンタン類にカルボキシル基を導入する方法としては、種々の反応が利用できる。カルボキシル基を効率よく生成させるためには、前記酸化反応と同様に、前記イミド化合物(2)で構成された酸化触媒、又はイミド化合物(2)と助触媒とで構成された酸化触媒系の存在下、アダマンタン類と一酸化炭素及び酸素とを接触させるカルボキシル化方法が有利である。
アダマンタン又は置換基を有するアダマンタンへのニトロ基の導入は、慣用の方法、例えば、ニトロ化剤(例えば、硫酸と硝酸との混酸、硝酸、硝酸及び有機酸(例えば、酢酸などのカルボン酸)、硝酸塩及び硫酸、五酸化二窒素など)を用いる方法などにより行うことができる。好ましいニトロ化方法としては、例えば、前記式(2)で表されるイミド化合物の存在下又は非存在下、アダマンタン類と窒素酸化物とを接触させるニトロ化方法が挙げられる。
(式中、xは1又は2の整数、yは1〜6の整数を示す)
前記式で表される化合物において、xが1である場合、yは通常1〜3の整数であり、xが2である場合、yは通常1〜6の整数である。
(1)ヒドロキシル化
アダマンタン 10ミリモル、N−ヒドロキシフタルイミド(NHPI) 2ミリモル、バナジウムアセチルアセトナト V(AA)3 0.1ミリモル、酢酸25mlの混合物を、酸素雰囲気下、85℃で10時間撹拌したところ、アダマンタンの転化率99%で1−アダマンタノール(収率8%)、1,3−アダマンタンジオール(収率22%)、1,3,5−アダマンタントリオール(収率33%)および1,3,5,7−アダマンタンテトラオール(収率20%)が得られた。
1,3,5−アダマンタントリオール 10ミリモル、トリエチルアミン 10ミリモルおよびテトラヒドロフラン40mlを混合し、この混合物にアクリル酸クロライド10ミリモルを約30分間に亘り滴下した。滴下終了後、室温で6時間撹拌した。反応終了後、反応混合液に水を添加し、カラムクロマトグラフィーで精製することにより、1−アクリロイルオキシ−3,5−ジヒドロキシアダマンタンが得られた。
得られた1−アクリロイルオキシ−3,5−ジ(1−ヒドロキシエトキシ)アダマンタン(アセタール化物)50重量%とメタクリル酸メチル10重量%とアクリル酸ブチル20重量%とメタクリル酸20重量%の単量体混合物100重量部を、重合開始剤(ベンゾイルパーオキサイド)5重量部を用いて有機溶媒(トルエン)中で重合し、混合液にメタノールで添加して重合体を沈殿させた。トルエンに溶解させてメタノールで沈殿させる操作を繰り返して精製し、重量平均分子量約1.5×104(GPCによるポリスチレン換算分子量)の共重合体を得た。
1,3,5−アダマンタントリオール 10ミリモル、トリエチルアミン10ミリモルおよびテトラヒドロフラン40mlを混合し、この混合物にメタクリル酸クロライド10ミリモルを約30分間に亘り滴下した。滴下終了後、室温で24時間撹拌した。反応終了後、反応混合液に水を添加し、カラムクロマトグラフィーで精製することにより、1−メタクリロイルオキシ−3,5−ジヒドロキシアダマンタンが得られた。
(1)カルボキシル化
1,3,5−アダマンタントリオール 10ミリモル、NHPI 1ミリモル、Co(AA)2 0.005ミリモルを酢酸25ml中に仕込み、混合ガス(2Lの一酸化炭素と、0.5Lの酸素との混合ガス;圧力:5kg/cm2)を封入したガスパックを反応器へ接続し、60℃で6時間撹拌したところ、1,3,5−アダマンタントリオールの転化率99%で、1−カルボキシ−3,5,7−アダマンタントリオール(収率80%)が得られた。
1−カルボキシ−3,5,7−アダマンタントリオール 1ミリモルとアクリル酸2−ヒドロキシエチル2.5ミリモルとを用い、トルエン中で反応させ、1−アクリロシルオキシエトキシカルボニル−3,5,7−アダマンタントリオールを得た。テトラヒドロフラン30mlに、1−アクリロイルオキシエトキシカルボニル−3,5,7−アダマンタントリオール5ミリモル、アセトアルデヒド25ミリモルおよびp−トルエンスルホン酸1ミリモルを用い、実施例1と同様にしてアセタール化し、下記式で表される目的化合物1−アクリロイルオキシエトキシカルボニル−3,5,7−トリ(1−ヒドロキシエトキシ)アダマンタン(アセタール化物)を得た。
1−アクリロイルオキシ−3,5−ジ(1−ヒドロキシエトキシ)アダマンタンに代えて、1−アクリロシルオキシエトキシカルボニル−3,5,7−トリ(1−ヒドロキシエトキシ)アダマンタンを用いる以外、実施例1の重合工程と同様にして共重合体を得た。
(1)ヒドロキシメチル化
窒素雰囲気下、水素化アルミニウムリチウム 15ミリモルをテトラヒドロフラン(THF)15mlに懸濁させ、氷浴を用いて液温を10℃以下に保ちつつ、実施例3の方法で得られた1−カルボキシ−3,5,7−アダマンタントリオール 10ミリモルを徐々に添加した。室温に戻した後、16時間還流したところ、1−ヒドロキシメチル−3,5,7−アダマンタントリオールを得た。
1,3,5−アダマンタントリオールに代えて1−ヒドロキシメチル−3,5,7−アダマンタントリオールを用いる以外、実施例1のエステル化および保護基の導入工程と同様にして、下記式で表される1−アクリロイルオキシメチル−3,5,7−トリ(1−ヒドロキシエトキシ)アダマンタンを得た。
1−アクリロイルオキシ−3,5−ジ(1−ヒドロキシエトキシ)アダマンタンに代えて、1−アクリロイルオキシメチル−3,5,7−トリ(1−ヒドロキシエトキシ)アダマンタンを用いる以外、実施例1の重合工程と同様にして共重合体を得た。
(1)カルボキシル化
1,3,5−アダマンタントリオールに代えてアダマンタンを用いる以外、実施例3のカルボキシル化工程(1)と同様にして1,3−ジカルボキシアダマンタンを得た。
酸性下でイソブテンを用いる常法により、1,3−ジカルボキシアダマンタン10ミリモルをt−ブトキシ化し、1,3−ジ(t−ブトキシカルボニル)アダマンタンを得た。
1,3,5−アダマンタントリオールに代えて、1,3−ジ(t−ブトキシカルボニル)−5−ヒドロキシアダマンタンを用いて、アクリル酸クロライドと反応させる以外、実施例1のエステル化工程と同様にして、下記式で表される1,3−ジ(t−ブトキシカルボニル)−5−アクリロイルオキシアダマンタンを得た。
1−アクリロイルオキシ−3,5−ジ(1−ヒドロキシエトキシ)アダマンタン(アセタール化物)に代えて、得られた1,3−ジ(t−ブトキシカルボニル)−5−アクリロイルオキシアダマンタンを用いる以外、実施例1の重合工程と同様にして共重合体を得た。
アクリル酸クロライドに代えて、メタクリル酸クロライドを用いる以外、実施例5のエステル化工程と同様にして、下記式で表される1,3−ジ(t−ブトキシカルボニル)−5−メタクリロイルオキシアダマンタンを得た。
1−アクリロイルオキシ−3,5−ジ(1−ヒドロキシエトキシ)アダマンタン(アセタール化物)に代えて、得られた1,3−ジ(t−ブトキシカルボニル)−5−メタクリロイルオキシアダマンタンを用いる以外、実施例1の重合工程と同様にして共重合体を得た。
(1)カルボキシル化
1,3,5−アダマンタントリオールに代えて、1,3−アダマンタンジオールを用いる以外、実施例3のカルボキシル化工程(1)と同様にして、1,3−ジヒドロキシ−5−カルボキシアダマンタンを得た。
1,3,5,アダマンタントリオールに代えて、1,3−ジヒドロキシ−5−カルボキシアダマンタンを用いる以外、実施例1のアクリロイル基の導入工程(2)と同様にして、1−アクリロイルオキシ−3−ヒドロキシ−5−カルボキシアダマンタンを得た。
1−アクリロイルオキシ−3−ヒドロキシ−5−カルボキシアダマンタンを、実施例5の保護基の導入工程と同様にして、酸性下でイソブテンを用いる方法によりt−ブトキシ化し、下記式で表される1−アクリロイルオキシ−3−ヒドロキシ−5−t−ブトキシカルボニルアダマンタンを得た。
1−アクリロイルオキシ−3−ヒドロキシ−5−t−ブトキシカルボニルアダマンタン95重量部と、アゾビスイソブチロニトリル(AIBN)5重量部とをジメチルホルムアミド(DMF)に溶解して10重量%溶液を調製した。この溶液を60℃で5時間加熱することにより重合し、重合体をメタノールを用いて沈殿させた。メタノールを用いる再沈操作により、得られた重合体を精製し、重量平均分子量が約15,000の重合体を得た。
(1)カルボキシル化
1,3,5−アダマンタントリオールに代えて、1−アダマンタノールを用いる以外、実施例3のカルボキシル化工程(1)と同様にして、1−ヒドロキシ−3,5−ジカルボキシアダマンタンを得た。
1,3,5,アダマンタントリオールに代えて、1−ヒドロキシ−3,5−ジカルボキシアダマンタンを用いる以外、実施例1のアクリロイル基の導入工程(2)と同様にして、1−アクリロイルオキシ−3,5−ジカルボキシアダマンタンを得た。
1−アクリロイルオキシ−3,5−ジカルボキシアダマンタンを、実施例5の保護基の導入工程と同様にして、酸性下でイソブテンを用いる方法によりt−ブトキシ化し、下記式で表される1−アクリロイルオキシ−3−カルボキシ−5−t−ブトキシカルボニルアダマンタンを得た。
得られた1−アクリロイルオキシ−3−カルボキシ−5−t−ブトキシカルボニルアダマンタンを、実施例7の重合工程と同様にして重合し、重量平均分子量が約22,000の重合体を得た。
(1)アセタール化および保護基の導入
1−アクリロイルオキシ−3,5−ジヒドロキシアダマンタン5ミリモル、アセトアルデヒド7ミリモルを用いる以外、実施例1の保護基の導入工程と同様にして、下記式で表される1−アクリロイルオキシ−3−ヒドロキシ−5−(1−ヒドロキシエトキシ)アダマンタン(アセタール化物)を得た。
得られた1−アクリロイルオキシ−3−ヒドロキシ−5−(1−ヒドロキシエトキシ)アダマンタンを、実施例7の重合工程と同様にして重合し、重量平均分子量が約13,000の重合体を得た。
(1)重合
1,3,5−アダマンタントリオールに代えて、1,3−アダマンタンジオールを用いる以外、実施例1と同様にして1−アクリロイルオキシ−3−ヒドロキシアダマンタンを得た。この1−アクリロイルオキシ−3−ヒドロキシアダマンタン50モル%と、実施例5で得られた1,3−ジ(t−ブトキシカルボニル)−5−アクリロイルオキシアダマンタン50モル%の単量体混合物を、実施例7の重合工程と同様にして重合し、重量平均分子量が約11,000であり、下記の単位を有する共重合体を得た。
(1)重合
実施例1で得られた1−アクリロイルオキシ−3,5−ジヒドロキシアダマンタン50モル%と、実施例5で得られた1,3−ジ(t−ブトキシカルボニル)−5−アクリロイルオキシアダマンタン50モル%の単量体混合物を、実施例7の重合工程と同様にして重合し、重量平均分子量が約8,000であり、下記の単位を有する共重合体を得た。
(1)重合
実施例1と同様にして得られた1−アクリロイルオキシ−3−ヒドロキシアダマンタン50モル%と、実施例5と同様にして得られた1−アクリロイルオキシ−3−(t−ブトキシカルボニル)アダマンタン50モル%の単量体混合物を、実施例7の重合工程と同様にして重合し、重量平均分子量が約10,000であり、下記の単位を有する共重合体を得た。
(1)ヒドロキシル化
アダマンタンに代えて1,3−ジメチルアダマンタンを用いる以外、実施例1のヒドロキシル化工程と同様にして1,3−ジメチル−5,7−ジヒドロキシアダマンタンを得た。
1,3,5−アダマンタントリオールに代えて1,3−ジメチル−5,7−ジヒドロキシアダマンタンを用いる以外、実施例1のアクリロイル基の導入工程と同様にして1−アクリロイルオキシ−3−ヒドロキシ−5,7−ジメチルアダマンタンを得た。
1,3,5−アダマンタントリオールに代えて1,3−ジメチルアダマンタンを用いる以外、実施例3のカルボキシル化工程(1)と同様にして1,3−ジメチル−5−カルボキシ−アダマンタンを得た。
1,3−ジカルボキシアダマンタンに代えて1,3−ジメチル−5−カルボキシアダマンタンを用いる以外、実施例4の保護基の導入およびヒドロキシル化工程と同様にして1,3−ジメチル−5−カルボキシ−7−ヒドロキシアダマンタンを得た。得られた1,3−ジメチル−5−カルボキシ−7−ヒドロキシアダマンタンを、実施例4の保護基の導入およびヒドロキシル化工程と同様にして1,3−ジメチル−5−(t−ブトキシカルボニル)−7−ヒドロキシアダマンタンを得た。
1,3,5−アダマンタントリオ−ルに代えて1,3−ジメチル−5−(t−ブトキシカルボニル)−7−ヒドロキシアダマンタンを用いる以外、実施例1のアクリロイル基の導入工程と同様にして1,3−ジメチル−5−(t−ブトキシカルボニル)−7−アクリロイルオキシアダマンタンを得た。
得られた1−アクリロイルオキシ−3−ヒドロキシ−5,7−ジメチルアダマンタン40モル%と1,3−ジメチル−5−(t−ブトキシカルボニル)−7−アクリロイルオキシアダマンタン60モル%の単量体混合物を実施例7の重合工程と同様にして重合し、重量平均分子量が約7,000であり下記の単位を有する共重合体を得た。
実施例1〜13で得られたそれぞれの重合体100重量部と、トリフェニルスルホニウムヘキサフルオロアンチモン10重量部を溶媒(ジメチルホルムアミド(DMF))と混合し、重合体濃度17重量%のフォトレジスト用樹脂組成物を調製した。このフォトレジスト用樹脂組成物をシリコンウエハーにスピンコーティングにより塗布し、厚み1.0μmの感光層を形成した。ホットプレート上で温度100℃で150秒間プリベークした後、波長247nmのKrFエキシマレーザーを用い、マスクを介して、重合体の種類に応じて5〜50mJ/cm2の範囲から適切な照射量を選択して露光した後、温度100℃で60秒間ポストベークを行った。次いで、0.3モル/Lのテトラメチルアンモニウムヒドロキシド水溶液により60秒間現像し、純水でリンスすることにより、それぞれ0.5μmのライン・アンド・スペースパターンを得た。
Claims (5)
- 重合体と光酸発生剤とを含有するフォトレジスト用樹脂組成物において、前記重合体を形成するためのフォトレジスト用アダマンタン系単量体の使用であって、前記アダマンタン系単量体が、下記式(1b)
で表されるフォトレジスト用アダマンタン系単量体の使用。 - Xがエステル結合である請求項1記載のフォトレジスト用アダマンタン系単量体の使用。
- アダマンタン系単量体が、1−(メタ)アクリロイルオキシ−3−ヒドロキシアダマンタン、1−(メタ)アクリロイルオキシ−3−ヒドロキシ−5,7−ジメチルアダマンタン、1−(メタ)アクリロイルオキシ−3,5−ジヒドロキシアダマンタン、又は1−(メタ)アクリロイルオキシ−3,5,7−トリヒドロキシアダマンタンである請求項1記載のフォトレジスト用アダマンタン系単量体の使用。
- 下記式(1b)
で表されるアダマンタン系単量体に対応する単位を有する重合体と光酸発生剤とを含有するフォトレジスト用樹脂組成物。 - 基材に形成された請求項4記載のフォトレジスト用樹脂組成物の塗膜に、所定のパターンで露光し、現像してパターンを形成する方法。
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CN118027277B (zh) * | 2024-04-12 | 2024-06-11 | 广东粤港澳大湾区黄埔材料研究院 | 丙烯酸酯类聚合物及其制备方法和应用 |
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