JP6856684B2 - 表面上の残渣を除去するための洗浄用製剤 - Google Patents
表面上の残渣を除去するための洗浄用製剤 Download PDFInfo
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- JP6856684B2 JP6856684B2 JP2019039176A JP2019039176A JP6856684B2 JP 6856684 B2 JP6856684 B2 JP 6856684B2 JP 2019039176 A JP2019039176 A JP 2019039176A JP 2019039176 A JP2019039176 A JP 2019039176A JP 6856684 B2 JP6856684 B2 JP 6856684B2
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- 239000000203 mixture Substances 0.000 title claims description 187
- 238000004140 cleaning Methods 0.000 title claims description 105
- 238000009472 formulation Methods 0.000 title description 33
- -1 hydroxyalkyl ether Chemical compound 0.000 claims description 78
- 239000000758 substrate Substances 0.000 claims description 72
- 239000004065 semiconductor Substances 0.000 claims description 63
- 229940123208 Biguanide Drugs 0.000 claims description 55
- 239000002738 chelating agent Substances 0.000 claims description 55
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 48
- 239000002253 acid Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 39
- XNCOSPRUTUOJCJ-UHFFFAOYSA-N Biguanide Chemical compound NC(N)=NC(N)=N XNCOSPRUTUOJCJ-UHFFFAOYSA-N 0.000 claims description 32
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 26
- 238000005260 corrosion Methods 0.000 claims description 25
- 230000007797 corrosion Effects 0.000 claims description 25
- 150000001875 compounds Chemical class 0.000 claims description 24
- 125000003118 aryl group Chemical group 0.000 claims description 23
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000003112 inhibitor Substances 0.000 claims description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 150000007513 acids Chemical class 0.000 claims description 15
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 238000004380 ashing Methods 0.000 claims description 14
- 239000012964 benzotriazole Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 13
- 150000001565 benzotriazoles Chemical class 0.000 claims description 13
- 239000003960 organic solvent Substances 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 13
- 150000001298 alcohols Chemical class 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 125000002947 alkylene group Chemical group 0.000 claims description 11
- 239000000908 ammonium hydroxide Substances 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 150000002148 esters Chemical class 0.000 claims description 10
- 125000002883 imidazolyl group Chemical group 0.000 claims description 10
- 229910021645 metal ion Inorganic materials 0.000 claims description 10
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 9
- 150000002576 ketones Chemical class 0.000 claims description 9
- 239000003002 pH adjusting agent Substances 0.000 claims description 8
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical group [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- AVXURJPOCDRRFD-UHFFFAOYSA-N hydroxylamine group Chemical group NO AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims description 7
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 7
- 125000001424 substituent group Chemical group 0.000 claims description 7
- 239000004475 Arginine Substances 0.000 claims description 6
- GHXZTYHSJHQHIJ-UHFFFAOYSA-N Chlorhexidine Chemical compound C=1C=C(Cl)C=CC=1NC(N)=NC(N)=NCCCCCCN=C(N)N=C(N)NC1=CC=C(Cl)C=C1 GHXZTYHSJHQHIJ-UHFFFAOYSA-N 0.000 claims description 6
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims description 6
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002585 base Substances 0.000 claims description 6
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 6
- 150000002170 ethers Chemical class 0.000 claims description 6
- 229920000768 polyamine Polymers 0.000 claims description 6
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 5
- LRUDIIUSNGCQKF-UHFFFAOYSA-N 5-methyl-1H-benzotriazole Chemical compound C1=C(C)C=CC2=NNN=C21 LRUDIIUSNGCQKF-UHFFFAOYSA-N 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- SXGMVGOVILIERA-UHFFFAOYSA-N 2,3-diaminobutanoic acid Chemical compound CC(N)C(N)C(O)=O SXGMVGOVILIERA-UHFFFAOYSA-N 0.000 claims description 4
- PECYZEOJVXMISF-UHFFFAOYSA-N 3-aminoalanine Chemical compound [NH3+]CC(N)C([O-])=O PECYZEOJVXMISF-UHFFFAOYSA-N 0.000 claims description 4
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 4
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 4
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- OETHQSJEHLVLGH-UHFFFAOYSA-N metformin hydrochloride Chemical compound Cl.CN(C)C(=N)N=C(N)N OETHQSJEHLVLGH-UHFFFAOYSA-N 0.000 claims description 4
- 229960004329 metformin hydrochloride Drugs 0.000 claims description 4
- XZWYZXLIPXDOLR-UHFFFAOYSA-N metformin hydrochloride Natural products CN(C)C(=N)NC(N)=N XZWYZXLIPXDOLR-UHFFFAOYSA-N 0.000 claims description 4
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 4
- 229960003330 pentetic acid Drugs 0.000 claims description 4
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 4
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 3
- 229960003260 chlorhexidine Drugs 0.000 claims description 3
- 239000012458 free base Substances 0.000 claims description 3
- 150000002357 guanidines Chemical class 0.000 claims description 3
- 150000002762 monocarboxylic acid derivatives Chemical group 0.000 claims description 3
- 239000002265 redox agent Substances 0.000 claims description 3
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 claims description 3
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- DDRUWXUVPQTRTQ-BRJRFNKRSA-N (2R)-2,5,6-triamino-6-methyliminohexanoic acid Chemical compound N=C(C(CC[C@@H](N)C(=O)O)N)NC DDRUWXUVPQTRTQ-BRJRFNKRSA-N 0.000 claims description 2
- HMFUHVHKVCREQK-QMMMGPOBSA-N (2S)-2-amino-2-(2-aminoethyl)-5-(diaminomethylideneamino)pentanoic acid Chemical compound NCC[C@@](N)(CCCNC(N)=N)C(=O)O HMFUHVHKVCREQK-QMMMGPOBSA-N 0.000 claims description 2
- CPUSCHYXEUZMSV-ZETCQYMHSA-N (2s)-2,6-diamino-2-methylhexanoic acid Chemical compound OC(=O)[C@](N)(C)CCCCN CPUSCHYXEUZMSV-ZETCQYMHSA-N 0.000 claims description 2
- FSPHIBLXJRNTSN-GDVGLLTNSA-N (2s)-2,6-diamino-3-methylhexanoic acid Chemical compound OC(=O)[C@@H](N)C(C)CCCN FSPHIBLXJRNTSN-GDVGLLTNSA-N 0.000 claims description 2
- NNIFTGRSDICEMZ-GDVGLLTNSA-N (2s)-2,6-diamino-4-methylhexanoic acid Chemical compound NCCC(C)C[C@H](N)C(O)=O NNIFTGRSDICEMZ-GDVGLLTNSA-N 0.000 claims description 2
- LKRMSSDDHQZQHJ-ZETCQYMHSA-N (2s)-2-amino-5-(diaminomethylideneamino)-2-methylpentanoic acid Chemical compound OC(=O)[C@](N)(C)CCCN=C(N)N LKRMSSDDHQZQHJ-ZETCQYMHSA-N 0.000 claims description 2
- ASOKPJOREAFHNY-UHFFFAOYSA-N 1-Hydroxybenzotriazole Chemical compound C1=CC=C2N(O)N=NC2=C1 ASOKPJOREAFHNY-UHFFFAOYSA-N 0.000 claims description 2
- OGNSCSPNOLGXSM-UHFFFAOYSA-N 2,4-diaminobutyric acid Chemical compound NCCC(N)C(O)=O OGNSCSPNOLGXSM-UHFFFAOYSA-N 0.000 claims description 2
- SHGBCLVCOJGQDM-UHFFFAOYSA-N 2,6-diaminoheptanoic acid Chemical compound CC(N)CCCC(N)C(O)=O SHGBCLVCOJGQDM-UHFFFAOYSA-N 0.000 claims description 2
- PIINGYXNCHTJTF-UHFFFAOYSA-N 2-(2-azaniumylethylamino)acetate Chemical compound NCCNCC(O)=O PIINGYXNCHTJTF-UHFFFAOYSA-N 0.000 claims description 2
- WYMDDFRYORANCC-UHFFFAOYSA-N 2-[[3-[bis(carboxymethyl)amino]-2-hydroxypropyl]-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)CN(CC(O)=O)CC(O)=O WYMDDFRYORANCC-UHFFFAOYSA-N 0.000 claims description 2
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 claims description 2
- 125000006290 2-hydroxybenzyl group Chemical group [H]OC1=C(C([H])=C([H])C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- YTZPUTADNGREHA-UHFFFAOYSA-N 2h-benzo[e]benzotriazole Chemical compound C1=CC2=CC=CC=C2C2=NNN=C21 YTZPUTADNGREHA-UHFFFAOYSA-N 0.000 claims description 2
- ULRPISSMEBPJLN-UHFFFAOYSA-N 2h-tetrazol-5-amine Chemical compound NC1=NN=NN1 ULRPISSMEBPJLN-UHFFFAOYSA-N 0.000 claims description 2
- QGCDUBGOXJTXIU-UHFFFAOYSA-N 3-(2h-benzotriazol-4-yl)propane-1,1-diol Chemical compound OC(O)CCC1=CC=CC2=NNN=C12 QGCDUBGOXJTXIU-UHFFFAOYSA-N 0.000 claims description 2
- KWYJDIUEHHCHCZ-UHFFFAOYSA-N 3-[2-[bis(2-carboxyethyl)amino]ethyl-(2-carboxyethyl)amino]propanoic acid Chemical compound OC(=O)CCN(CCC(O)=O)CCN(CCC(O)=O)CCC(O)=O KWYJDIUEHHCHCZ-UHFFFAOYSA-N 0.000 claims description 2
- PHFUGYFADPADDV-UHFFFAOYSA-N 4-(2-methylpropyl)-2h-benzotriazole Chemical compound CC(C)CC1=CC=CC2=NNN=C12 PHFUGYFADPADDV-UHFFFAOYSA-N 0.000 claims description 2
- IPIVUPVIFPKFTG-UHFFFAOYSA-N 4-butyl-2h-benzotriazole Chemical compound CCCCC1=CC=CC2=C1N=NN2 IPIVUPVIFPKFTG-UHFFFAOYSA-N 0.000 claims description 2
- NGKNMHFWZMHABQ-UHFFFAOYSA-N 4-chloro-2h-benzotriazole Chemical compound ClC1=CC=CC2=NNN=C12 NGKNMHFWZMHABQ-UHFFFAOYSA-N 0.000 claims description 2
- QRHDSDJIMDCCKE-UHFFFAOYSA-N 4-ethyl-2h-benzotriazole Chemical compound CCC1=CC=CC2=C1N=NN2 QRHDSDJIMDCCKE-UHFFFAOYSA-N 0.000 claims description 2
- ALDDXGSQUCGTDT-UHFFFAOYSA-N 4-fluoro-2h-benzotriazole Chemical compound FC1=CC=CC2=NNN=C12 ALDDXGSQUCGTDT-UHFFFAOYSA-N 0.000 claims description 2
- OKFSBQOGHYYGRZ-UHFFFAOYSA-N 4-hexyl-2h-benzotriazole Chemical compound CCCCCCC1=CC=CC2=C1N=NN2 OKFSBQOGHYYGRZ-UHFFFAOYSA-N 0.000 claims description 2
- UTMDJGPRCLQPBT-UHFFFAOYSA-N 4-nitro-1h-1,2,3-benzotriazole Chemical compound [O-][N+](=O)C1=CC=CC2=NNN=C12 UTMDJGPRCLQPBT-UHFFFAOYSA-N 0.000 claims description 2
- TVOIATIUZOHKFY-UHFFFAOYSA-N 4-pentyl-2h-benzotriazole Chemical compound CCCCCC1=CC=CC2=NNN=C12 TVOIATIUZOHKFY-UHFFFAOYSA-N 0.000 claims description 2
- KUVZHAJTEJICOW-UHFFFAOYSA-N 4-propan-2-yl-2h-benzotriazole Chemical compound CC(C)C1=CC=CC2=NNN=C12 KUVZHAJTEJICOW-UHFFFAOYSA-N 0.000 claims description 2
- VXDLXVDZTJOKAO-UHFFFAOYSA-N 4-propyl-2h-benzotriazole Chemical compound CCCC1=CC=CC2=C1N=NN2 VXDLXVDZTJOKAO-UHFFFAOYSA-N 0.000 claims description 2
- CSUGYJWSPZKYLY-UHFFFAOYSA-N 5-(2,4,4-trimethylpentan-2-yl)-2h-benzotriazole Chemical compound C1=C(C(C)(C)CC(C)(C)C)C=CC2=NNN=C21 CSUGYJWSPZKYLY-UHFFFAOYSA-N 0.000 claims description 2
- DYIFWSZJRUOXBY-UHFFFAOYSA-N 5-(2-methylbutan-2-yl)-2h-benzotriazole Chemical compound C1=C(C(C)(C)CC)C=CC2=NNN=C21 DYIFWSZJRUOXBY-UHFFFAOYSA-N 0.000 claims description 2
- JQSSWPIJSFUBKX-UHFFFAOYSA-N 5-(2-methylpropyl)-2h-benzotriazole Chemical compound C1=C(CC(C)C)C=CC2=NNN=C21 JQSSWPIJSFUBKX-UHFFFAOYSA-N 0.000 claims description 2
- YZTYEGCWRPJWEE-UHFFFAOYSA-N 5-(benzotriazol-2-yl)pentan-1-amine Chemical compound C1=CC=CC2=NN(CCCCCN)N=C21 YZTYEGCWRPJWEE-UHFFFAOYSA-N 0.000 claims description 2
- WZUUZPAYWFIBDF-UHFFFAOYSA-N 5-amino-1,2-dihydro-1,2,4-triazole-3-thione Chemical compound NC1=NNC(S)=N1 WZUUZPAYWFIBDF-UHFFFAOYSA-N 0.000 claims description 2
- BQCIJWPKDPZNHD-UHFFFAOYSA-N 5-bromo-2h-benzotriazole Chemical compound C1=C(Br)C=CC2=NNN=C21 BQCIJWPKDPZNHD-UHFFFAOYSA-N 0.000 claims description 2
- ZCFMGIGLXOKMJC-UHFFFAOYSA-N 5-butyl-2h-benzotriazole Chemical compound C1=C(CCCC)C=CC2=NNN=C21 ZCFMGIGLXOKMJC-UHFFFAOYSA-N 0.000 claims description 2
- PZBQVZFITSVHAW-UHFFFAOYSA-N 5-chloro-2h-benzotriazole Chemical compound C1=C(Cl)C=CC2=NNN=C21 PZBQVZFITSVHAW-UHFFFAOYSA-N 0.000 claims description 2
- ZWTWLIOPZJFEOO-UHFFFAOYSA-N 5-ethyl-2h-benzotriazole Chemical compound C1=C(CC)C=CC2=NNN=C21 ZWTWLIOPZJFEOO-UHFFFAOYSA-N 0.000 claims description 2
- SYGGDXKMRDPIKQ-UHFFFAOYSA-N 5-fluoro-2h-benzotriazole Chemical compound C1=C(F)C=CC2=NNN=C21 SYGGDXKMRDPIKQ-UHFFFAOYSA-N 0.000 claims description 2
- GAHAURRLKFPBCQ-UHFFFAOYSA-N 5-hexyl-2h-benzotriazole Chemical compound CCCCCCC1=CC=C2NN=NC2=C1 GAHAURRLKFPBCQ-UHFFFAOYSA-N 0.000 claims description 2
- SUPSFAUIWDRKKZ-UHFFFAOYSA-N 5-methoxy-2h-benzotriazole Chemical compound C1=C(OC)C=CC2=NNN=C21 SUPSFAUIWDRKKZ-UHFFFAOYSA-N 0.000 claims description 2
- AOCDQWRMYHJTMY-UHFFFAOYSA-N 5-nitro-2h-benzotriazole Chemical compound C1=C([N+](=O)[O-])C=CC2=NNN=C21 AOCDQWRMYHJTMY-UHFFFAOYSA-N 0.000 claims description 2
- CEKGSUMCMSBKNQ-UHFFFAOYSA-N 5-octyl-2h-benzotriazole Chemical compound C1=C(CCCCCCCC)C=CC2=NNN=C21 CEKGSUMCMSBKNQ-UHFFFAOYSA-N 0.000 claims description 2
- KAGBXLIGSMIYGF-UHFFFAOYSA-N 5-pentyl-2h-benzotriazole Chemical compound C1=C(CCCCC)C=CC2=NNN=C21 KAGBXLIGSMIYGF-UHFFFAOYSA-N 0.000 claims description 2
- WXSBVEKBZGNSDY-UHFFFAOYSA-N 5-phenyl-2h-benzotriazole Chemical compound C1=CC=CC=C1C1=CC2=NNN=C2C=C1 WXSBVEKBZGNSDY-UHFFFAOYSA-N 0.000 claims description 2
- MBSXHYDCWYCSME-UHFFFAOYSA-N 5-propan-2-yl-2h-benzotriazole Chemical compound C1=C(C(C)C)C=CC2=NNN=C21 MBSXHYDCWYCSME-UHFFFAOYSA-N 0.000 claims description 2
- CCBSHAWEHIDTIU-UHFFFAOYSA-N 5-propyl-2h-benzotriazole Chemical compound CCCC1=CC=C2NN=NC2=C1 CCBSHAWEHIDTIU-UHFFFAOYSA-N 0.000 claims description 2
- JLGADKXBPJXIOQ-UHFFFAOYSA-N 5-tert-butyl-2h-benzotriazole Chemical compound C1=C(C(C)(C)C)C=CC2=NNN=C21 JLGADKXBPJXIOQ-UHFFFAOYSA-N 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 2
- 239000004471 Glycine Substances 0.000 claims description 2
- QUOGESRFPZDMMT-UHFFFAOYSA-N L-Homoarginine Natural products OC(=O)C(N)CCCCNC(N)=N QUOGESRFPZDMMT-UHFFFAOYSA-N 0.000 claims description 2
- HNDVDQJCIGZPNO-YFKPBYRVSA-N L-histidine Chemical compound OC(=O)[C@@H](N)CC1=CN=CN1 HNDVDQJCIGZPNO-YFKPBYRVSA-N 0.000 claims description 2
- QUOGESRFPZDMMT-YFKPBYRVSA-N L-homoarginine Chemical compound OC(=O)[C@@H](N)CCCCNC(N)=N QUOGESRFPZDMMT-YFKPBYRVSA-N 0.000 claims description 2
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 claims description 2
- 239000004472 Lysine Substances 0.000 claims description 2
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 claims description 2
- NTWVQPHTOUKMDI-YFKPBYRVSA-N N-Methyl-arginine Chemical compound CN[C@H](C(O)=O)CCCN=C(N)N NTWVQPHTOUKMDI-YFKPBYRVSA-N 0.000 claims description 2
- 229920002873 Polyethylenimine Polymers 0.000 claims description 2
- MKBUQYWFFBCMFG-UHFFFAOYSA-N acetic acid propane-1,1-diamine Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.CCC(N)N MKBUQYWFFBCMFG-UHFFFAOYSA-N 0.000 claims description 2
- 125000005263 alkylenediamine group Chemical group 0.000 claims description 2
- JCXKHYLLVKZPKE-UHFFFAOYSA-N benzotriazol-1-amine Chemical compound C1=CC=C2N(N)N=NC2=C1 JCXKHYLLVKZPKE-UHFFFAOYSA-N 0.000 claims description 2
- ANHXKSXTBQIUAZ-UHFFFAOYSA-M benzyl(tributyl)azanium;hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CC1=CC=CC=C1 ANHXKSXTBQIUAZ-UHFFFAOYSA-M 0.000 claims description 2
- FKPSBYZGRQJIMO-UHFFFAOYSA-M benzyl(triethyl)azanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC1=CC=CC=C1 FKPSBYZGRQJIMO-UHFFFAOYSA-M 0.000 claims description 2
- NDKBVBUGCNGSJJ-UHFFFAOYSA-M benzyltrimethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)CC1=CC=CC=C1 NDKBVBUGCNGSJJ-UHFFFAOYSA-M 0.000 claims description 2
- UVSNFZAOYHOOJO-UHFFFAOYSA-N chembl1343456 Chemical compound OC1=CC=C2N=NNC2=C1 UVSNFZAOYHOOJO-UHFFFAOYSA-N 0.000 claims description 2
- JQDCIBMGKCMHQV-UHFFFAOYSA-M diethyl(dimethyl)azanium;hydroxide Chemical compound [OH-].CC[N+](C)(C)CC JQDCIBMGKCMHQV-UHFFFAOYSA-M 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 150000002466 imines Chemical class 0.000 claims description 2
- XGCKLPDYTQRDTR-UHFFFAOYSA-H indium(iii) sulfate Chemical compound [In+3].[In+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O XGCKLPDYTQRDTR-UHFFFAOYSA-H 0.000 claims description 2
- 150000002763 monocarboxylic acids Chemical class 0.000 claims description 2
- OKQVTLCUHATGDD-UHFFFAOYSA-N n-(benzotriazol-1-ylmethyl)-2-ethyl-n-(2-ethylhexyl)hexan-1-amine Chemical compound C1=CC=C2N(CN(CC(CC)CCCC)CC(CC)CCCC)N=NC2=C1 OKQVTLCUHATGDD-UHFFFAOYSA-N 0.000 claims description 2
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 claims description 2
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 claims description 2
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- 239000012298 atmosphere Substances 0.000 description 1
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- 125000001072 heteroaryl group Chemical group 0.000 description 1
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- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N hexane Substances CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
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- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
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- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 description 1
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- ZHZCYWWNFQUZOR-UHFFFAOYSA-N pent-4-en-2-ol Chemical compound CC(O)CC=C ZHZCYWWNFQUZOR-UHFFFAOYSA-N 0.000 description 1
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- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- ICFJFFQQTFMIBG-UHFFFAOYSA-N phenformin Chemical compound NC(=N)NC(=N)NCCC1=CC=CC=C1 ICFJFFQQTFMIBG-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 125000001557 phthalyl group Chemical group C(=O)(O)C1=C(C(=O)*)C=CC=C1 0.000 description 1
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- 239000012286 potassium permanganate Substances 0.000 description 1
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- TVDSBUOJIPERQY-UHFFFAOYSA-N prop-2-yn-1-ol Chemical compound OCC#C TVDSBUOJIPERQY-UHFFFAOYSA-N 0.000 description 1
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- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000003642 reactive oxygen metabolite Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- ZRVXFJFFJZFRLQ-UHFFFAOYSA-M tetramethylazanium;iodate Chemical compound [O-]I(=O)=O.C[N+](C)(C)C ZRVXFJFFJZFRLQ-UHFFFAOYSA-M 0.000 description 1
- HLQAWDQQEJSALG-UHFFFAOYSA-M tetramethylazanium;periodate Chemical compound C[N+](C)(C)C.[O-]I(=O)(=O)=O HLQAWDQQEJSALG-UHFFFAOYSA-M 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910021655 trace metal ion Inorganic materials 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 1
- APIBROGXENTUGB-ZUQRMPMESA-M triphenyl-[(e)-3-phenylprop-2-enyl]phosphanium;bromide Chemical compound [Br-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C\C=C\C1=CC=CC=C1 APIBROGXENTUGB-ZUQRMPMESA-M 0.000 description 1
- AQLJVWUFPCUVLO-UHFFFAOYSA-N urea hydrogen peroxide Chemical compound OO.NC(N)=O AQLJVWUFPCUVLO-UHFFFAOYSA-N 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- LXNOENXQFNYMGT-UHFFFAOYSA-N xi-5-Hydroxydodecanoic acid Chemical compound CCCCCCCC(O)CCCC(O)=O LXNOENXQFNYMGT-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0073—Anticorrosion compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0084—Antioxidants; Free-radical scavengers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/28—Heterocyclic compounds containing nitrogen in the ring
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
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Description
本願は、ここに参照により全体の内容を援用する2014年12月3日に出願された特願2016−536210、2014年2月7日に出願された米国特許仮出願番号第61/936999号、及び2013年12月6日に出願された米国特許仮出願番号第61/912697号の優先権を主張する。
本開示は半導体基板用の新規洗浄用組成物および半導体基板の洗浄法に関する。さらに具体的には、本開示は、半導体基板上に積層された金属層または誘電体物質層のプラズマエッチング後にそれらの基板上に形成されたプラズマエッチング残渣の除去、およびプラズマアッシング処理によってバルクレジストを取り除いた後にそれらの基板上に残った残渣の除去のための洗浄用組成物に関する。
1)約0.5重量%〜約20重量%の少なくとも1つの酸化還元剤、
2)約0.01重量%〜約1重量%の少なくとも1つの第1のキレート剤、
3)約0.01重量%〜約1.8重量%の少なくとも1つの第2のキレート剤、
4)約0.05重量%〜約1重量%の少なくとも1つの金属腐食抑制剤、
5)約1重量%〜約30重量%の少なくとも1つの有機溶媒、
6)約78%〜約98%の水、および
7)所望により少なくとも1つのpH調整剤
を含み得る。
(A)エッチング後残渣および/またはアッシング後残渣を含む半導体基板を提供する工程、
(B)前記半導体基板を本明細書に記載される洗浄用組成物と接触させる工程、
(C)前記半導体基板を適切なリンス溶媒でリンスする工程、および
(D)所望により前記リンス溶媒を取り除き、且つ、前記半導体基板の完全性を損なわない方法によって前記半導体基板を乾燥する工程
を含み得る。
1)約0.5重量%〜約20重量%の少なくとも1つの酸化還元剤、
2)約0.01重量%〜約1重量%のポリアミノポリカルボン酸である少なくとも1つの第1のキレート剤、
3)約0.01重量%〜約1.8重量%の前記第1のキレート剤と異なり、少なくとも2つの窒素含有基を含む少なくとも1つの第2のキレート剤、
4)約0.05重量%〜約1重量%の置換および非置換ベンゾトリアゾールからなる群より選択される少なくとも1つの金属腐食抑制剤、
5)約1重量%〜約30重量%の水溶性アルコール、水溶性ケトン、水溶性エステル、および水溶性エーテルからなる群より選択される少なくとも1つの有機溶媒、
6)約78%〜約98%の水、および
7)所望により金属イオンを含まない塩基であり、且つ、本洗浄用組成物のpHを約6と約9.5の間に調節する少なくとも1つのpH調整剤
を含む非腐食性洗浄用組成物に関する。
(R3NH)C(R1)(R2)CO2H (I)
によって記載される化合物であって、式中、R1とR2の各々は、独立して水素原子、C1〜C4アルキル、または少なくとも1つの窒素含有塩基性基を有する基(例えば、C1〜C10基)であり、且つ、R3は水素原子、C1〜C10アルキル、または少なくとも1つの窒素含有塩基性基を有する基(例えば、C1〜C10基)であり、R1、R2、およびR3のうちの少なくとも1つは、少なくとも1つの窒素含有塩基性基を有する基である化合物から選択される。
(II)
を有することができ、式中、R10、R11、R12、およびR13は水素、置換または非置換アリール、置換または非置換C3〜C10環状アルキル、および置換または非置換C1〜C10直鎖または分岐アルキルからなる群より独立して選択され、且つ、R14は水素、またはR13と共にイミダゾール環を形成する単結合であり、ただしR10、R11、R12、およびR13のうちの少なくとも1つはアリール基であるかまたはアリール置換基を含み、且つR10、R11、R12、およびR13のうちの少なくとも2つは水素である。幾つかの実施形態ではR11およびR13は水素である。幾つかの実施形態ではR13およびR14は水素である。
(III)
の化合物であって、式中、R20、R21、R22、およびR23は水素、置換または非置換アリール、置換または非置換C3〜C10環状アルキル、および置換または非置換C1〜C10直鎖または分岐アルキルからなる群より独立して選択され、各R24は水素、置換または非置換アリール、置換または非置換フェニルエチル、または置換もしくは非置換ベンジルアルキルからなる群より独立して選択され、且つ、mは1〜10の整数であり、ただしR20、R21、R22、R23およびR24のうちの少なくとも1つはアリール基であるかまたはアリール置換基を含み、且つR20、R21、R22、およびR23のうちの少なくとも2つは水素である。
(IV)
を有し、式中、nは2以上の整数であり、各R25は独立してHまたはC1〜C6アルキルであり、且つ、各R26は独立して置換されていてもよいC1〜C20アルキレン(例えば、C4〜C10アルキレン)である。
(A)エッチング後残渣および/またはアッシング後残渣を含む半導体基板を提供する工程、
(B)前記半導体基板を本明細書に記載される洗浄用組成物と接触させる工程、
(C)前記半導体基板を適切なリンス溶媒でリンスする工程、および
(D)所望により、前記リンス溶媒を取り除き、且つ、前記半導体基板の完全性を損なわない方法によって前記半導体基板を乾燥する工程
を含む。幾つかの実施形態では本洗浄方法は上記の方法によって得られた半導体基板から半導体素子(例えば、半導体チップなどの集積回路素子)を形成することをさらに含む。
製剤の調合
計算した量の脱イオン化超純水(DIW)に金属イオンを含まないpH調整剤を除く洗浄製剤の成分を撹拌しながら添加して洗浄用組成物の試料を調製した。自由選択の添加剤を使用する場合は溶液が均一になった後に添加した。pH調整剤を添加して前記組成物の製剤を完了した。所望により、その溶液を平衡化させその洗浄用組成物のpHを測った。
ビーカー試験による洗浄評価
リソグラフィーによってパターン化され、金属用プラズマエッチング装置内でエッチングを受け、続いて上層のフォトレジストを完全に除去するために酸素プラズマアッシングを受けたフォトレジスト/TiOx/SiN/Co/ILD(ILD=層間誘電体)またはフォトレジスト/TiOx/SiN/W/ILDからなる複層基板を使用して、基板からのPER(エッチング後残渣)の洗浄が本記載の洗浄用組成物を用いて実施された。
ビーカー試験による材料適合性評価
材料適合性試験のためにシリコン基板上のブランケットCo、シリコン基板上のW、シリコン基板上のSiO2上のTiOx、シリコン基板上のSiN、シリコン基板上のILDを約1インチ×1インチ四方の試験片に切断した。最初にそれらの試験片について金属膜(Co、W)用に4点プローブCDE Resmap273によって、または誘電体膜(TiOx、SiNおよびILD)用にWoollam M−2000Xを使用しエリプソメトリーによって厚みまたはシート抵抗を測定した。その後、それらの試験片を4インチ長のプラスチック製ロッキングピンセットに取り付け、その試験片のCo層、W層、TiOx層、SiN層、またはILD層を含む面が撹拌子に対面するようにして基本手順2の洗浄手順に記載されているように10分間にわたって処理した。
表1は基本手順1によって調製された製剤FE−1〜FE−5および比較製剤CFE−1〜CFE−4を含む。
EGBE=エチレングリコールブチルエーテル;
DTPA=ジエチレントリアミン五酢酸;
5MBTA=5−メチルベンゾトリアゾール;
DBU=1,8−ジアザビシクロ[5.4.0]ウンデ−7−セン;
CDC=クロルヘキシジンジヒドロクロリド;
アルギニン=
。
洗浄剤の曝露された金属との適合性
基本手順2に従って洗浄について、および65℃、4分間の基本手順3に従って材料適合性について製剤実施例FE−1〜FE−5および比較製剤実施例CFE−1〜CFE−4を試験した。それらの洗浄用組成物中でのCo、W、TiOx、SiN、SiC、TEOS(オルトケイ酸テトラエチル)、およびILDのエッチ速度(オングストローム/分)が表2に示されている。
「NA」はデータが利用可能ではないことを指す。
表3は基本手順1によって調製された製剤FE−6〜FE−13ならびに比較製剤CFE−5およびCFE−6を詳述している。
フェニルビグアニド(PBG)
1−(o−トリル)ビグアニド(TBG)
フェンホルミンヒドロクロリド(PFCl)
メトホルミンヒドロクロリド(MTCl)
2−グアニジノベンズイミダゾール(GBI)
洗浄剤の曝露された金属との適合性
基本手順2に従って洗浄能について、および65℃、4分間の基本手順3に従って材料適合性について製剤実施例FE−6〜FE−13ならびに比較製剤実施例CFE−5およびCFE−6を試験した。それらの洗浄用組成物のCo、W、TiOx、SiN、SiC、およびILD(利用可能である場合)のエッチ速度(オングストローム/分)が表4に示されている。
洗浄1:5の評価は優れており、1の評価は非常に悪い。
「NA」はデータが利用可能ではないことを指す。
洗浄剤の曝露された金属との適合性
基本手順2に従って洗浄能について、および65℃、4分間の基本手順3に従って材料適合性について製剤実施例FE−14〜FE−17ならびに比較製剤実施例CFE−7およびCFE−8を試験した。表5は本洗浄用組成物を示している。表5に示されている「Pol−BG」はポリヘキサメチレンビグアニド塩酸塩を指す(下の構造を参照されたい。n=12)。
ポリヘキサメチレンビグアニド(Pol−BG)塩酸塩
それらの洗浄用組成物のCo、W、TiOx、SiN、SiC、およびILD(利用可能である場合)のエッチ速度(オングストローム/分)が表6に示されている。
洗浄(1): 5の評価は優れており、1の評価は非常に悪い。
「NA」はデータが利用可能ではないことを指す。
Claims (52)
- 1)少なくとも1種の酸化還元剤、
2)ポリアミノポリカルボン酸である少なくとも1種の第1のキレート剤、
3)前記第1のキレート剤と異なり、少なくとも2つの窒素含有基を含む少なくとも1種の第2のキレート剤、
4)置換または非置換ベンゾトリアゾールである少なくとも1種の金属腐食抑制剤、
5)水溶性アルコール、水溶性ケトン、水溶性エステル、および水溶性エーテルからなる群より選択される少なくとも1種の有機溶媒、および
6)水、を含み、
7)金属イオンを含まない塩基である少なくとも1種のpH調整剤を含んでもよい、
洗浄用の組成物であって、前記組成物は、pHは6以上9.5以下であり、メトホルミン塩酸塩を含まない、
洗浄用の組成物。 - 前記pHが6以上9以下の値である、請求項1に記載の組成物。
- 前記酸化還元剤がヒドロキシルアミンである、請求項1に記載の組成物。
- 前記酸化還元剤の量が、前記組成物の重量の0.5重量%以上20重量%以下である、請求項1に記載の組成物。
- 前記ポリアミノポリカルボン酸がモノ−またはポリ−アルキレンポリアミンポリカルボン酸、ポリアミノアルカンポリカルボン酸、ポリアミノアルカノールポリカルボン酸、およびヒドロキシアルキルエーテルポリアミンポリカルボン酸からなる群より選択される、請求項1に記載の組成物。
- 前記ポリアミノポリカルボン酸がブチレンジアミン四酢酸、ジエチレントリアミン五酢酸、エチレンジアミンテトラプロピオン酸、トリエチレンテトラミン六酢酸、l,3−ジアミノ−2−ヒドロキシプロパン−N,N,N’,N’−四酢酸、プロピレンジアミン四酢酸、エチレンジアミン四酢酸、trans−1,2−ジアミノシクロヘキサン四酢酸、エチレンジアミン二酢酸、エチレンジアミンジプロピオン酸、1,6−ヘキサメチレン−ジアミン−N,N,N’,N’−四酢酸、N,N−ビス(2−ヒドロキシベンジル)エチレンジアミン−N,N−二酢酸、ジアミノプロパン四酢酸、1,4,7,10−テトラアザシクロドデカン−四酢酸、ジアミノプロパノール四酢酸、および(ヒドロキシエチル)エチレンジアミン三酢酸からなる群より選択される、請求項1に記載の組成物。
- 前記ポリアミノポリカルボン酸の量が、前記組成物の重量の0.01重量%以上1重量%以下である、請求項1に記載の組成物。
- 前記第2のキレート剤が第一級アミノ基または第二級アミノ基および少なくとも1つの追加の窒素含有塩基性基を含むモノカルボン酸である、請求項1に記載の組成物。
- 前記モノカルボン酸が構造(I):
(R3NH)C(R1)(R2)CO2H (I)
を有する化合物であって、式中、
R1とR2の各々は独立して水素原子、C1〜C4アルキル、または少なくとも1つの窒素含有塩基性基を有する基であり、且つ、
R3は水素原子、C1〜C10アルキル、または少なくとも1つの窒素含有塩基性基を有する基であり、
R1、R2、およびR3のうちの少なくとも1つは、少なくとも1つの窒素含有塩基性基を有する基である、請求項8に記載の組成物。 - R1が少なくとも1つの窒素含有塩基性基を有する基であり、少なくとも1つの窒素含有塩基性基を有する前記基がアミノ、グアニジニル、またはイミダゾリルによって置換されており、且つ、OHによってさらに置換されていてもよいC1〜C10アルキルである、請求項9に記載の組成物。
- R2がHまたはC1〜C4アルキルであり、R3がH、C1〜C10アルキル、または少なくとも1つの窒素含有塩基性基を有する基であり、少なくとも1つの窒素含有塩基性基を有する前記基がアミノ、グアニジニル、またはイミダゾリルによって置換されていてもよく、且つ、OHによってさらに置換されていてもよいC1〜C10アルキルである、請求項10に記載の組成物。
- R3が少なくとも1つの窒素含有塩基性基を有する基であり、少なくとも1つの窒素含有塩基性基を有する前記基がアミノ、グアニジニル、またはイミダゾリルによって置換されており、且つ、OHによってさらに置換されていてもよいC1〜C10アルキルである、請求項9に記載の組成物。
- R1とR2の各々が独立してHまたはC1〜C4アルキルである、請求項12に記載の組成物。
- 前記モノカルボン酸がリシン、2,3−ジアミノ酪酸、2,4−ジアミノ酪酸、オルニチン、2,3−ジアミノプロピオン酸、2,6−ジアミノヘプタン酸、4−メチルリシン、3−メチルリシン、5−ヒドロキシリシン、3−メチル−L−アルギニン、アルギニン、ホモアルギニン、N5−モノメチル−L−アルギニン、N5−[イミノ(メチルアミノ)メチル]−D−オルニチン、カナバニン、ヒスチジン、N−(2−アミノエチル)グリシン、N−(2−アミノプロピル)グリシン、N2−メチルリシン、N2−メチル−L−アルギニン、N2−(2−アミノエチル)−D−アルギニン、N2−(2−アミノエチル)−L−アルギニン、2−メチルリシン、2−メチル−L−アルギニン、3,4−ジアミノ酪酸、および3−アミノ−5−[(アミノイミノメチル)メチルアミノ]ペンタン酸からなる群より選択される、請求項8に記載の組成物。
- 前記第2のキレート剤が構造(III):
(III)
を有する化合物であり、式中、
R20、R21、R22、およびR23はそれぞれ水素原子、置換または非置換アリール、置換または非置換C3〜C10環状アルキル、および置換または非置換C1〜C10直鎖または分岐アルキルからなる群より独立して選択され、
各R24はそれぞれ水素原子、置換または非置換アリール、置換または非置換フェニルエチル、または置換もしくは非置換ベンジルアルキルからなる群より独立して選択され、且つ、
mは1〜10の整数であり、
ただしR20、R21、R22、R23およびR24のうちの少なくとも1つはアリール基であるかまたはアリール置換基を含み、且つR20、R21、R22、およびR23のうちの少なくとも2つは水素原子である、
請求項1に記載の組成物。 - 前記第2のキレート剤がクロルヘキシジン、アルキレンジアミン、ジエチレントリアミン、トリエチレンテトラミン、またはポリエチレンイミンである、請求項1に記載の組成物。
- 前記第2のキレート剤が高分子ビグアニドである、請求項1に記載の組成物。
- 各R26が独立してC4〜C10アルキレンである、請求項19に記載の組成物。
- 各R26が独立してC6アルキレンである、請求項19に記載の組成物。
- nが5〜300の整数である、請求項19に記載の組成物。
- nが5〜50の整数である、請求項22に記載の組成物。
- nが10〜20の整数である、請求項23に記載の組成物。
- nが12または15である、請求項24に記載の組成物。
- 前記第2のキレート剤の量は、前記組成物の重量の0.01重量%以上1.8重量%以下である、請求項1に記載の組成物。
- 前記金属腐食抑制剤が、アルキル基、アリール基、ハロゲン基、アミノ基、ニトロ基、アルコキシ基、およびヒドロキシル基からなる群より選択される少なくとも1つの置換基によって置換されていてもよいベンゾトリアゾールである、請求項1に記載の組成物。
- 前記金属腐食抑制剤がベンゾトリアゾール、5−アミノテトラゾール、1−ヒドロキシベンゾトリアゾール、5−フェニルチオール−ベンゾトリアゾール、5−クロロベンゾトリアゾール、4−クロロベンゾトリアゾール、5−ブロモベンゾトリアゾール、4−ブロモベンゾトリアゾール、5−フルオロベンゾトリアゾール、4−フルオロベンゾトリアゾール、ナフトトリアゾール、トリルトリアゾール、5−フェニル−ベンゾトリアゾール、5−ニトロベンゾトリアゾール、4−ニトロベンゾトリアゾール、3−アミノ−5−メルカプト−1,2,4−トリアゾール、2−(5−アミノ−ペンチル)−ベンゾトリアゾール、1−アミノ−ベンゾトリアゾール、5−メチル−1H−ベンゾトリアゾール、ベンゾトリアゾール−5−カルボン酸、4−メチルベンゾトリアゾール、4−エチルベンゾトリアゾール、5−エチルベンゾトリアゾール、4−プロピルベンゾトリアゾール、5−プロピルベンゾトリアゾール、4−イソプロピルベンゾトリアゾール、5−イソプロピルベンゾトリアゾール、4−n−ブチルベンゾトリアゾール、5−n−ブチルベンゾトリアゾール、4−イソブチルベンゾトリアゾール、5−イソブチルベンゾトリアゾール、4−ペンチルベンゾトリアゾール、5−ペンチルベンゾトリアゾール、4−ヘキシルベンゾトリアゾール、5−ヘキシルベンゾトリアゾール、5−メトキシベンゾトリアゾール、5−ヒドロキシベンゾトリアゾール、ジヒドロキシプロピルベンゾトリアゾール、1−[N,N−ビス(2−エチルヘキシル)アミノメチル]−ベンゾトリアゾール、5−t−ブチルベンゾトリアゾール、5−(1’,1’−ジメチルプロピル)−ベンゾトリアゾール、5−(1’,1’,3’−トリメチルブチル)ベンゾトリアゾール、5−n−オクチルベンゾトリアゾール、および5−(1’,1’,3’,3’−テトラメチルブチル)ベンゾトリアゾールからなる群より選択される、請求項1に記載の組成物。
- 前記金属腐食抑制剤の量は、前記組成物の重量の0.05重量%以上1重量%以下である、請求項1に記載の組成物。
- 前記有機溶媒の量は、前記組成物の重量の1重量%以上30重量%以下である、請求項1に記載の組成物。
- 前記水の量は、前記組成物の重量の78%以上98%以下である、請求項1に記載の組成物。
- 金属イオンを含まない塩基である少なくとも1種のpH調整剤をさらに含む請求項1に記載の組成物。
- 前記pH調整剤が第四級アンモニウム水酸化物、モノアミン、イミン、またはグアニジン塩である、請求項32に記載の組成物。
- 1)少なくとも1種の酸化還元剤、
2)ポリアミノポリカルボン酸である少なくとも1種の第1のキレート剤、
3)置換または非置換ベンゾトリアゾールである少なくとも1種の金属腐食抑制剤、
4)水溶性アルコール、水溶性ケトン、水溶性エステル、および水溶性エーテルからなる群より選択される少なくとも1種の有機溶媒、および
5)水、を含み、
6)金属イオンを含まない塩基である少なくとも1種のpH調整剤を含んでもよい、
洗浄用の組成物であって、前記組成物は、pHは6以上9.5以下であり、メトホルミン塩酸塩を含まない、
洗浄用の組成物。 - 前記組成物のpHが6以上9以下の値である、請求項34に記載の組成物。
- 前記酸化還元剤がヒドロキシルアミンである、請求項34に記載の組成物。
- 前記酸化還元剤の量は、前記組成物の重量の0.5重量%以上20重量%以下である、請求項34に記載の組成物。
- 前記ポリアミノポリカルボン酸がモノ−またはポリ−アルキレンポリアミンポリカルボン酸、ポリアミノアルカンポリカルボン酸、ポリアミノアルカノールポリカルボン酸、およびヒドロキシアルキルエーテルポリアミンポリカルボン酸からなる群より選択される、請求項34に記載の組成物。
- 前記ポリアミノポリカルボン酸の量は、前記組成物の重量の0.01重量%以上1重量%以下である、請求項34に記載の組成物。
- 前記金属腐食抑制剤が、アルキル基、アリール基、ハロゲン基、アミノ基、ニトロ基、アルコキシ基、およびヒドロキシル基からなる群より選択される少なくとも1つの置換基によって置換されていてもよいベンゾトリアゾールである、請求項34に記載の組成物。
- 前記金属腐食抑制剤の量は、前記組成物の重量の0.05重量%以上1重量%以下である、請求項34に記載の組成物。
- 金属イオンを含まない塩基である少なくとも1種のpH調整剤をさらに含む請求項34に記載の組成物。
- 前記第2のキレート剤がクロルヘキシジンまたはその塩を含む、請求項1に記載の組成物。
- 前記少なくとも1つの第四級アンモニウム水酸化物は、水酸化テトラメチルアンモニウム、水酸化テトラエチルアンモニウム、水酸化テトラプロピルアンモニウム、水酸化テトラブチルアンモニウム、水酸化ジメチルジエチルアンモニウム、コリン、水酸化テトラエタノ−ルアンモニウム、水酸化ベンジルトリメチルアンモニウム、水酸化ベンジルトリエチルアンモニウム、又は水酸化ベンジルトリブチルアンモニウムを含む、請求項33に記載の組成物。
- 前記少なくとも1つの第四級アンモニウム水酸化物は、水酸化テトラエチルアンモニウム、又は水酸化テトラブチルアンモニウムを含む、請求項44に記載の組成物。
- 前記少なくとも1つの第四級アンモニウム水酸化物の量は、0.1重量%以上3重量%以下である、請求項33に記載の組成物。
- 1)ヒドロキシルアミン、
2)ジエチレントリアミン五酢酸、
3)クロルヘキシジン塩、
4)5−メチル−1H−ベンゾトリアゾール、
5)水酸化テトラブチルアンモニウム、
6)エチレングリコールブチルエーテル、および
7)水、
を含む組成物。 - 前記組成物は、
0.5重量%以上20重量%のヒドロキシルアミン、
0.01重量%以上1重量%のジエチレントリアミン五酢酸、
0.01重量%以上1.8重量%のクロルヘキシジン塩、
0.05重量%以上1重量%の5−メチル−1H−ベンゾトリアゾール、
0.1重量%以上3重量%の水酸化テトラブチルアンモニウム、
1重量%以上30重量%のエチレングリコールブチルエーテル、および
水、
を含む、請求項47に記載の組成物。 - エッチング後残渣およびアッシング後残渣の少なくとも一方を含む半導体基板を請求項1〜48のいずれか1項に記載の洗浄用の組成物と接触させる接触工程を含む方法。
- 前記接触工程の後に前記半導体基板をリンス溶媒でリンスするリンス工程をさらに含む、請求項49に記載の方法。
- 前記リンス工程の後に前記半導体基板を乾燥することをさらに含む、請求項50に記載の方法。
- 前記半導体基板から半導体素子を形成することをさらに含む、請求項49に記載の方法。
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