JP2000503342A - 金属汚染ウエハ基板の平滑性維持洗浄 - Google Patents
金属汚染ウエハ基板の平滑性維持洗浄Info
- Publication number
- JP2000503342A JP2000503342A JP10518417A JP51841798A JP2000503342A JP 2000503342 A JP2000503342 A JP 2000503342A JP 10518417 A JP10518417 A JP 10518417A JP 51841798 A JP51841798 A JP 51841798A JP 2000503342 A JP2000503342 A JP 2000503342A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- glycol
- cleaning composition
- cleaning
- hydroxide
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 78
- 239000000758 substrate Substances 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000000243 solution Substances 0.000 claims abstract description 61
- 239000007864 aqueous solution Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 150000001875 compounds Chemical class 0.000 claims abstract description 21
- 238000011109 contamination Methods 0.000 claims abstract description 18
- 239000012458 free base Substances 0.000 claims abstract description 16
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 6
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 5
- 238000004377 microelectronic Methods 0.000 claims abstract description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 59
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 52
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 35
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 32
- 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 26
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 22
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 19
- 239000000908 ammonium hydroxide Substances 0.000 claims description 19
- -1 alkane diol Chemical class 0.000 claims description 15
- 229960000583 acetic acid Drugs 0.000 claims description 14
- 229910021645 metal ion Inorganic materials 0.000 claims description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- 239000012362 glacial acetic acid Substances 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 8
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 7
- WTSXICLFTPPDTL-UHFFFAOYSA-N pentane-1,3-diamine Chemical compound CCC(N)CCN WTSXICLFTPPDTL-UHFFFAOYSA-N 0.000 claims description 7
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 claims description 6
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 claims description 6
- 229920005862 polyol Polymers 0.000 claims description 6
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 5
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims description 5
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 4
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 4
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 4
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 claims description 4
- 235000010355 mannitol Nutrition 0.000 claims description 4
- HEBKCHPVOIAQTA-ZXFHETKHSA-N ribitol Chemical compound OC[C@H](O)[C@H](O)[C@H](O)CO HEBKCHPVOIAQTA-ZXFHETKHSA-N 0.000 claims description 4
- 229960002920 sorbitol Drugs 0.000 claims description 4
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 claims description 4
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 claims description 4
- 239000000811 xylitol Substances 0.000 claims description 4
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 4
- 235000010447 xylitol Nutrition 0.000 claims description 4
- 229960002675 xylitol Drugs 0.000 claims description 4
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 claims description 3
- KIZQNNOULOCVDM-UHFFFAOYSA-M 2-hydroxyethyl(trimethyl)azanium;hydroxide Chemical compound [OH-].C[N+](C)(C)CCO KIZQNNOULOCVDM-UHFFFAOYSA-M 0.000 claims description 3
- 239000004386 Erythritol Substances 0.000 claims description 3
- 229930195725 Mannitol Natural products 0.000 claims description 3
- QVHMSMOUDQXMRS-UHFFFAOYSA-N PPG n4 Chemical compound CC(O)COC(C)COC(C)COC(C)CO QVHMSMOUDQXMRS-UHFFFAOYSA-N 0.000 claims description 3
- 239000013522 chelant Substances 0.000 claims description 3
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 3
- 235000019414 erythritol Nutrition 0.000 claims description 3
- 229940009714 erythritol Drugs 0.000 claims description 3
- 239000000594 mannitol Substances 0.000 claims description 3
- 229960001855 mannitol Drugs 0.000 claims description 3
- 239000000600 sorbitol Substances 0.000 claims description 3
- 235000010356 sorbitol Nutrition 0.000 claims description 3
- 150000005622 tetraalkylammonium hydroxides Chemical class 0.000 claims description 3
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims 2
- 229910001413 alkali metal ion Inorganic materials 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 description 75
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 53
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 46
- 229910052710 silicon Inorganic materials 0.000 description 42
- 239000010703 silicon Substances 0.000 description 42
- 239000012141 concentrate Substances 0.000 description 29
- 239000008367 deionised water Substances 0.000 description 29
- 229910021641 deionized water Inorganic materials 0.000 description 29
- 239000012670 alkaline solution Substances 0.000 description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 16
- 229910001873 dinitrogen Inorganic materials 0.000 description 13
- 241000252506 Characiformes Species 0.000 description 12
- 239000002253 acid Substances 0.000 description 12
- 238000007788 roughening Methods 0.000 description 11
- 229960001484 edetic acid Drugs 0.000 description 10
- 239000013078 crystal Substances 0.000 description 9
- 239000002738 chelating agent Substances 0.000 description 8
- 238000005530 etching Methods 0.000 description 8
- 239000004094 surface-active agent Substances 0.000 description 8
- 238000011282 treatment Methods 0.000 description 8
- 230000003746 surface roughness Effects 0.000 description 7
- 239000000356 contaminant Substances 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 5
- 238000002835 absorbance Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000000673 graphite furnace atomic absorption spectrometry Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 4
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- 101000580353 Rhea americana Rheacalcin-1 Proteins 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 description 3
- 229960001231 choline Drugs 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
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 241000894007 species Species 0.000 description 3
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 2
- GIAFURWZWWWBQT-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanol Chemical compound NCCOCCO GIAFURWZWWWBQT-UHFFFAOYSA-N 0.000 description 2
- URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical compound OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 description 2
- RAEOEMDZDMCHJA-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-[2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]ethyl]amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CCN(CC(O)=O)CC(O)=O)CC(O)=O RAEOEMDZDMCHJA-UHFFFAOYSA-N 0.000 description 2
- FAXDZWQIWUSWJH-UHFFFAOYSA-N 3-methoxypropan-1-amine Chemical compound COCCCN FAXDZWQIWUSWJH-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001412 amines Chemical group 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
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- 150000004696 coordination complex Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
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- 239000007800 oxidant agent Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
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- 229920000573 polyethylene Polymers 0.000 description 2
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- 150000003077 polyols Chemical class 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
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- 150000005846 sugar alcohols Chemical class 0.000 description 2
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical compound O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 description 1
- IDYCJOKDHJLCGO-UHFFFAOYSA-N (amino-phenyl-phosphonomethyl)phosphonic acid Chemical compound OP(=O)(O)C(P(O)(O)=O)(N)C1=CC=CC=C1 IDYCJOKDHJLCGO-UHFFFAOYSA-N 0.000 description 1
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- JZUHIOJYCPIVLQ-UHFFFAOYSA-N 2-methylpentane-1,5-diamine Chemical compound NCC(C)CCCN JZUHIOJYCPIVLQ-UHFFFAOYSA-N 0.000 description 1
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- KWYCPUNAAYFHAK-UHFFFAOYSA-N N-(2,6-Dimethylphenyl)-4-[[(diethylamino)acetyl]amino]benzamide Chemical compound C1=CC(NC(=O)CN(CC)CC)=CC=C1C(=O)NC1=C(C)C=CC=C1C KWYCPUNAAYFHAK-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical class CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
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- 101000580354 Rhea americana Rheacalcin-2 Proteins 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
- 238000005760 Tripper reaction Methods 0.000 description 1
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- 238000004847 absorption spectroscopy Methods 0.000 description 1
- VYTBPJNGNGMRFH-UHFFFAOYSA-N acetic acid;azane Chemical compound N.N.CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O VYTBPJNGNGMRFH-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005102 attenuated total reflection Methods 0.000 description 1
- WUPZNKGVDMHMBS-UHFFFAOYSA-N azane;dihydrate Chemical group [NH4+].[NH4+].[OH-].[OH-] WUPZNKGVDMHMBS-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- KFJNCGCKGILQMF-UHFFFAOYSA-M dibutyl(dimethyl)azanium;hydroxide Chemical compound [OH-].CCCC[N+](C)(C)CCCC KFJNCGCKGILQMF-UHFFFAOYSA-M 0.000 description 1
- JQDCIBMGKCMHQV-UHFFFAOYSA-M diethyl(dimethyl)azanium;hydroxide Chemical compound [OH-].CC[N+](C)(C)CC JQDCIBMGKCMHQV-UHFFFAOYSA-M 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- MHUWZNTUIIFHAS-CLFAGFIQSA-N dioleoyl phosphatidic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(COP(O)(O)=O)OC(=O)CCCCCCC\C=C/CCCCCCCC MHUWZNTUIIFHAS-CLFAGFIQSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- PZZHMLOHNYWKIK-UHFFFAOYSA-N eddha Chemical compound C=1C=CC=C(O)C=1C(C(=O)O)NCCNC(C(O)=O)C1=CC=CC=C1O PZZHMLOHNYWKIK-UHFFFAOYSA-N 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 125000005639 glycero group Chemical group 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000033444 hydroxylation Effects 0.000 description 1
- 238000005805 hydroxylation reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 231100001240 inorganic pollutant Toxicity 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229960004502 levodopa Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- HJKJWWIYCWDQAL-UHFFFAOYSA-N methylazanium tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].C[NH3+].C[NH3+].C[NH3+].C[NH3+] HJKJWWIYCWDQAL-UHFFFAOYSA-N 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004439 roughness measurement Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 1
- UVZICZIVKIMRNE-UHFFFAOYSA-N thiodiacetic acid Chemical compound OC(=O)CSCC(O)=O UVZICZIVKIMRNE-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- FYFNFZLMMGXBMT-UHFFFAOYSA-M tributyl(ethyl)azanium;hydroxide Chemical compound [OH-].CCCC[N+](CC)(CCCC)CCCC FYFNFZLMMGXBMT-UHFFFAOYSA-M 0.000 description 1
- QVOFCQBZXGLNAA-UHFFFAOYSA-M tributyl(methyl)azanium;hydroxide Chemical compound [OH-].CCCC[N+](C)(CCCC)CCCC QVOFCQBZXGLNAA-UHFFFAOYSA-M 0.000 description 1
- GRNRCQKEBXQLAA-UHFFFAOYSA-M triethyl(2-hydroxyethyl)azanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CCO GRNRCQKEBXQLAA-UHFFFAOYSA-M 0.000 description 1
- JAJRRCSBKZOLPA-UHFFFAOYSA-M triethyl(methyl)azanium;hydroxide Chemical compound [OH-].CC[N+](C)(CC)CC JAJRRCSBKZOLPA-UHFFFAOYSA-M 0.000 description 1
- IJGSGCGKAAXRSC-UHFFFAOYSA-M tris(2-hydroxyethyl)-methylazanium;hydroxide Chemical compound [OH-].OCC[N+](C)(CCO)CCO IJGSGCGKAAXRSC-UHFFFAOYSA-M 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/261—Alcohols; Phenols
-
- 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/268—Carbohydrates or derivatives thereof
-
- 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3209—Amines or imines with one to four nitrogen atoms; 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3218—Alkanolamines or alkanolimines
-
- 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5004—Organic solvents
- C11D7/5022—Organic solvents containing oxygen
-
- 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
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/22—Electronic devices, e.g. PCBs or semiconductors
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Molecular Biology (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Detergent Compositions (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.ウエハ基板表面の平滑性を維持しながら金属汚染を除去するためにマイク ロエレクトロニクスウエハ基板表面を洗浄する方法であって、ウエハ基板表面を ウエハ基板表面の洗浄に十分な時間および温度で洗浄組成物と接触させることか らなり、該洗浄組成物は、アルカリ性金属イオンフリー塩基の水溶液と、2から 10個の−OH基を含有し、かつ式: HO−Z−OH −R1−、−R2−および−R3−はアルキレン基であり、xは1から4の整数で あり、yは1から8の整数であるが、但し、ポリヒドロキシ化合物中の炭素原子 数は10を越えない、 を有するポリヒドロキシ化合物とを含み、水溶液中に存在する水は洗浄組成物の 少なくとも40重量%である、方法。 2.アルカリ性金属イオンフリー塩基が洗浄組成物中約25重量%までの量で 存在し、ポリヒドロキシ化合物が約50重量%までの量で存在する、請求の範囲 第1項に記載の方法。 3.アルカリ性金属イオンフリー塩基が約0.05重量%から約10重量%で 存在し、ポリヒドロキシ化合物が約5重量%から約40重量%の量で存在する、 請求の範囲第2項に記載の方法。 4.洗浄組成物が更に金属キレート化合物を洗浄組成物の約0.01から約5 重量%の量で含む、請求の範囲第3項に記載の方法。 5.アルカリ性金属イオンフリー塩基が、水酸化アンモニウムまたは、アルキ ル基が非置換アルキル基またはヒドロキシまたはアルコキシ基で置換されたアル キル基である水酸化テトラアルキルアンモニウムおよびそれらの混合物からなる 群から選択される、請求の範囲第2項に記載の方法。 6.アルカリ性金属イオンフリー塩基が、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、水酸化トリメチル−2−ヒドロキシエチルア ンモニウム、水酸化アンモニウムおよびそれらの混合物からなる群から選択され る、請求の範囲第5項に記載の方法。 7.アルカリ性金属イオンフリー塩基がアルカノールアミンである、請求の範 囲第2項に記載の方法。 8.アルカリ性金属イオンフリー塩基がアルカンジアミンである、請求の範囲 第2項に記載の方法。 9.ポリヒドロキシ化合物が、7.5cal1/2cm-3/2以上のハンセン水素結合溶 解パラメーターを持つ高親水性アルカンジオールおよびビシナルアルカンポリオ ールからなる群から選択される、請求の範囲第1項に記載の方法。 10.ポリヒドロキシ化合物が、エレチングリコール、ジエチレングリコール、 トリエチレングリコール、テトラエチレングリコール、プロピレングリコール、 ジプロピレングリコール、トリプロピレングリコール、テトラプロピレングリコ ール、2−メチル−2,4−ペンタンジオールおよびそれらの混合物からなる群 から選択されるアルカンジオールである、請求の範囲第9項に記載の方法。 11.ポリヒドロキシ化合物が、マンニトール、エリスリトール、ソルビトール 、キシリトール、アドニトール、グリセロールおよびそれらの混合物からなる群 から選択されるビシナルアルカンポリオールである、請求の範囲第9項に記載の 方法。 12.洗浄組成物が、水酸化テトラメチルアンモニウム約0.07重量%、水酸 化アンモニウム溶液約0.50重量%、ジエチレングリコール約36重量%およ びエチレンジアミンテトラ酢酸約0.09重量%を含有する水溶液からなり、残 りは水で構成されている、請求の範囲第4項に記載の方法。 13.洗浄組成物が、水酸化テトラメチルアンモニウム約0.07重量%、水酸 化アンモニウム溶液約2.5重量%、エチレングリコールとジエチレングリコー ルからなる群から選択されるグリコール約35重量%、氷酢酸約0.08重量% およびエチレンジアミンテトラ酢酸約0.09重量%を含有する水溶液からなり 、残りは水で構成されている、請求の範囲第4項に記載の方法。 14.洗浄組成物が、水酸化テトラメチルアンモニウム約0.5重量%、1,3− ペンタンジアミン約4重量%、ジエチレングリコール約50重量%、酢酸約1重 量%およびエチレンジアミンテトラ酢酸約0.09重量%を含有する水溶液から なり、残りは水で構成されている、請求の範囲第2項に記載の方法。 15.洗浄組成物が、水酸化テトラメチルアンモニウム約0.5重量%、1,3 −ペンタンジアミン約4重量%、ジエチレングリコール約50重量%、塩化水素 約0.6重量%およびエチレンジアミンテトラ酢酸約0.09重量%を含有する水 溶液からなり、残りは水で構成されている、請求の範囲第2項に記載の方法。 16.ウエハ基板表面の平滑性を維持しながら金属汚染を除去するためにマイク ロエレクトロニクスウエハ基板表面を洗浄するための洗浄組成物であって、アル カリ性金属イオンフリー塩基の水溶液と、2から10個の−OH基を含有し、か つ式: HO−Z−OH −R1−、−R2−および−R3−はアルキレン基であり、xは1から4の整数で あり、yは1から8の整数であるが、但し、ポリヒドロキシ化合物中の炭素原子 数は10を越えない、 を有するポリヒドロキシ化合物とを含み、水溶液中に存在する水は洗浄組成物の 少なくとも40重量%である、組成物。 17.アルカリ性金属イオンフリー塩基が洗浄組成物中約25重量%までの量で 存在し、ポリヒドロキシ化合物が約50重量%までの量で存在する、請求の範囲 第16項に記載の組成物。 18.アルカリ性金属イオンフリー塩基が約0.05重量%から約10重量%で 存在し、ポリヒドロキシ化合物が約5重量%から約40重量%の量で存在する、 請求の範囲第17に記載の組成物。 19.洗浄組成物が更に金属キレート化合物を洗浄組成物の約0.01から約5 重量%の量で含む、請求の範囲第18項に記載の組成物。 20.アルカリ性金属イオンフリー塩基が、水酸化アンモニウムまたは、アルキ ル基が非置換アルキル基またはヒドロキシまたはアルコキシ基で置換されたアル キル基である水酸化テトラアルキルアンモニウムおよびそれらの混合物からなる 群から選択される、請求の範囲第17項に記載の組成物。 21.アルカリ性金属イオンフリー塩基が、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、水酸化トリメチル−2−ヒドロキシエチルア ンモニウム、水酸化アンモニウムおよびそれらの混合物からなる群から選択され る、請求の範囲第20項に記載の組成物。 22.アルカリ性金属イオンフリー塩基がアルカノールアミンである、請求の範 囲第17項に記載の組成物。 23.アルカリ性金属イオンフリー塩基がアルカンジアミンである、請求の範囲 第17項に記載の組成物。 24.ポリヒドロキシ化合物が、7.5cal1/2cm-3/2以上のハンセン水素結合溶 解パラメーターを持つ高親水性アルカンジオールおよびビシナルアルカンポリオ ールからなる群から選択される、請求の範囲第16項に記載の組成物。 25.ポリヒドロキシ化合物が、エレチングリコール、ジエチレングリコール、 トリエチレングリコール、テトラエチレングリコール、プロピレングリコール、 ジプロピレングリコール、トリプロピレングリコール、テトラプロピレングリコ ール、2−メチル−2,4−ペンタンジオールおよびそれらの混合物からなる群 から選択されるアルカンジオールである、請求の範囲第24項に記載の組成物。 26.ポリヒドロキシ化合物が、マンニトール、エリスリトール、ソルビトール 、キシリトール、アドニトール、グリセロールおよびそれらの混合物からなる群 から選択されるビシナルアルカンポリオールである、請求の範囲第24項に記載 の組成物。 27.洗浄組成物が、水酸化テトラメチルアンモニウム約0.07重量%、水酸 化アンモニウム溶液約0.50重量%、ジエチレングリコール約36重量%およ びエチレンジアミンテトラ酢酸約0.09重量%を含有する水溶液からなり、残 りは水で構成されている、請求の範囲第19項に記載の組成物。 28.洗浄組成物が、水酸化テトラメチルアンモニウム約0.07重量%、水酸 化アンモニウム溶液約2.5重量%、エチレングリコールとジエチレングリコー ルからなる群から選択されるグリコール約35重量%、氷酢酸約0.08重量% およびエチレンジアミンテトラ酢酸約0.09重量%を含有する水溶液からなり 、残りは水で構成されている、請求の範囲第19項に記載の組成物。 29.洗浄組成物が、水酸化テトラメチルアンモニウム約0.5重量%、1,3− ペンタンジアミン約4重量%、ジエチレングリコール約50重量%、酢酸約1重 量%およびエチレンジアミンテトラ酢酸約0.09重量%を含有する水溶液から なり、残りは水で構成されている、請求の範囲第17項に記載の組成物。 30.洗浄組成物が、水酸化テトラメチルアンモニウム約0.5重量%、1,3− ペンタンジアミン約4重量%、ジエチレングリコール約50重量%、塩化水素約 0.6重量%およびエチレンジアミンテトラ酢酸約0.09重量%を含有する水 溶液からなり、残りは水で構成されている、請求の範囲第17項に記載の組成物 。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/729,565 | 1996-10-11 | ||
US08/729,565 US5989353A (en) | 1996-10-11 | 1996-10-11 | Cleaning wafer substrates of metal contamination while maintaining wafer smoothness |
PCT/US1997/018052 WO1998016330A1 (en) | 1996-10-11 | 1997-10-07 | Cleaning wafer substrates of metal contamination while maintaining wafer smoothness |
Publications (3)
Publication Number | Publication Date |
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JP2000503342A true JP2000503342A (ja) | 2000-03-21 |
JP2000503342A5 JP2000503342A5 (ja) | 2005-06-16 |
JP4282093B2 JP4282093B2 (ja) | 2009-06-17 |
Family
ID=24931617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51841798A Expired - Fee Related JP4282093B2 (ja) | 1996-10-11 | 1997-10-07 | 金属汚染ウエハ基板の平滑性維持洗浄 |
Country Status (11)
Country | Link |
---|---|
US (1) | US5989353A (ja) |
EP (1) | EP0886547B1 (ja) |
JP (1) | JP4282093B2 (ja) |
KR (1) | KR100305314B1 (ja) |
CN (1) | CN1107343C (ja) |
AT (1) | ATE315965T1 (ja) |
DE (1) | DE69735126T2 (ja) |
DK (1) | DK0886547T3 (ja) |
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-
1996
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1997
- 1997-10-07 AT AT97910817T patent/ATE315965T1/de active
- 1997-10-07 KR KR1019980704380A patent/KR100305314B1/ko not_active IP Right Cessation
- 1997-10-07 EP EP97910817A patent/EP0886547B1/en not_active Expired - Lifetime
- 1997-10-07 DK DK97910817T patent/DK0886547T3/da active
- 1997-10-07 JP JP51841798A patent/JP4282093B2/ja not_active Expired - Fee Related
- 1997-10-07 DE DE69735126T patent/DE69735126T2/de not_active Expired - Lifetime
- 1997-10-07 WO PCT/US1997/018052 patent/WO1998016330A1/en active IP Right Grant
- 1997-10-07 ES ES97910817T patent/ES2252776T3/es not_active Expired - Lifetime
- 1997-10-11 CN CN97122584A patent/CN1107343C/zh not_active Expired - Lifetime
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005075924A (ja) * | 2003-08-29 | 2005-03-24 | Neos Co Ltd | シリカスケール除去剤 |
JP2005336342A (ja) * | 2004-05-27 | 2005-12-08 | Tosoh Corp | 洗浄用組成物 |
JP2006083376A (ja) * | 2004-08-18 | 2006-03-30 | Mitsubishi Gas Chem Co Inc | 洗浄液および洗浄法。 |
JP2014529641A (ja) * | 2011-08-09 | 2014-11-13 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | シリコン基板の表面を処理するための水性アルカリ性組成物および方法 |
JP2014080614A (ja) * | 2012-10-16 | 2014-05-08 | Uwiz Technology Co Ltd | 洗浄剤組成物及びそれを用いる洗浄方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1107343C (zh) | 2003-04-30 |
US5989353A (en) | 1999-11-23 |
KR100305314B1 (ko) | 2001-11-30 |
EP0886547B1 (en) | 2006-01-18 |
WO1998016330A1 (en) | 1998-04-23 |
EP0886547A4 (en) | 2002-05-08 |
ES2252776T3 (es) | 2006-05-16 |
DK0886547T3 (da) | 2006-05-22 |
DE69735126T2 (de) | 2006-08-03 |
EP0886547A1 (en) | 1998-12-30 |
KR19990072074A (ko) | 1999-09-27 |
JP4282093B2 (ja) | 2009-06-17 |
ATE315965T1 (de) | 2006-02-15 |
TW467954B (en) | 2001-12-11 |
CN1187689A (zh) | 1998-07-15 |
DE69735126D1 (de) | 2006-04-06 |
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