JP2023521828A - モリブデンをエッチングするための方法及び組成物 - Google Patents
モリブデンをエッチングするための方法及び組成物 Download PDFInfo
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- JP2023521828A JP2023521828A JP2022562306A JP2022562306A JP2023521828A JP 2023521828 A JP2023521828 A JP 2023521828A JP 2022562306 A JP2022562306 A JP 2022562306A JP 2022562306 A JP2022562306 A JP 2022562306A JP 2023521828 A JP2023521828 A JP 2023521828A
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- Prior art keywords
- acid
- etchant composition
- hydroxide
- ether
- ammonium
- Prior art date
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- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- UGNWTBMOAKPKBL-UHFFFAOYSA-N tetrachloro-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(Cl)=C(Cl)C1=O UGNWTBMOAKPKBL-UHFFFAOYSA-N 0.000 claims description 2
- ZOMVKCHODRHQEV-UHFFFAOYSA-M tetraethylphosphanium;hydroxide Chemical compound [OH-].CC[P+](CC)(CC)CC ZOMVKCHODRHQEV-UHFFFAOYSA-M 0.000 claims description 2
- LUVHDTDFZLTVFM-UHFFFAOYSA-M tetramethylazanium;chlorate Chemical compound [O-]Cl(=O)=O.C[N+](C)(C)C LUVHDTDFZLTVFM-UHFFFAOYSA-M 0.000 claims description 2
- RXMRGBVLCSYIBO-UHFFFAOYSA-M tetramethylazanium;iodide Chemical compound [I-].C[N+](C)(C)C RXMRGBVLCSYIBO-UHFFFAOYSA-M 0.000 claims description 2
- ZCWKIFAQRXNZCH-UHFFFAOYSA-M tetramethylazanium;perchlorate Chemical compound C[N+](C)(C)C.[O-]Cl(=O)(=O)=O ZCWKIFAQRXNZCH-UHFFFAOYSA-M 0.000 claims description 2
- CRUVUWATNULHFA-UHFFFAOYSA-M tetramethylphosphanium;hydroxide Chemical compound [OH-].C[P+](C)(C)C CRUVUWATNULHFA-UHFFFAOYSA-M 0.000 claims description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 2
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 claims description 2
- LDGFRUUNCRYSQK-UHFFFAOYSA-N triazin-4-ylmethanediamine Chemical compound NC(N)C1=CC=NN=N1 LDGFRUUNCRYSQK-UHFFFAOYSA-N 0.000 claims description 2
- MPSUGQWRVNRJEE-UHFFFAOYSA-N triazol-1-amine Chemical compound NN1C=CN=N1 MPSUGQWRVNRJEE-UHFFFAOYSA-N 0.000 claims description 2
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 claims description 2
- WRTMQOHKMFDUKX-UHFFFAOYSA-N triiodide Chemical compound I[I-]I WRTMQOHKMFDUKX-UHFFFAOYSA-N 0.000 claims description 2
- IJGSGCGKAAXRSC-UHFFFAOYSA-M tris(2-hydroxyethyl)-methylazanium;hydroxide Chemical compound [OH-].OCC[N+](C)(CCO)CCO IJGSGCGKAAXRSC-UHFFFAOYSA-M 0.000 claims description 2
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 claims description 2
- 150000003672 ureas Chemical class 0.000 claims description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims 2
- HHVIBTZHLRERCL-UHFFFAOYSA-N sulfonyldimethane Chemical compound CS(C)(=O)=O HHVIBTZHLRERCL-UHFFFAOYSA-N 0.000 claims 2
- WDQFELCEOPFLCZ-UHFFFAOYSA-N 1-(2-hydroxyethyl)pyrrolidin-2-one Chemical compound OCCN1CCCC1=O WDQFELCEOPFLCZ-UHFFFAOYSA-N 0.000 claims 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims 1
- VTWDKFNVVLAELH-UHFFFAOYSA-N 2-methylcyclohexa-2,5-diene-1,4-dione Chemical compound CC1=CC(=O)C=CC1=O VTWDKFNVVLAELH-UHFFFAOYSA-N 0.000 claims 1
- XGWWZKBCQLBJNH-UHFFFAOYSA-N 3-methylsulfanyl-1h-1,2,4-triazol-5-amine Chemical compound CSC1=NN=C(N)N1 XGWWZKBCQLBJNH-UHFFFAOYSA-N 0.000 claims 1
- AEMOLEFTQBMNLQ-AQKNRBDQSA-N D-glucopyranuronic acid Chemical compound OC1O[C@H](C(O)=O)[C@@H](O)[C@H](O)[C@H]1O AEMOLEFTQBMNLQ-AQKNRBDQSA-N 0.000 claims 1
- 239000005708 Sodium hypochlorite Substances 0.000 claims 1
- WOBFYGXLPOWGQU-UHFFFAOYSA-N [NH4+].C[Cl](C)(C)(C)([O-])=O Chemical compound [NH4+].C[Cl](C)(C)(C)([O-])=O WOBFYGXLPOWGQU-UHFFFAOYSA-N 0.000 claims 1
- 229910001914 chlorine tetroxide Inorganic materials 0.000 claims 1
- ZJHQDSMOYNLVLX-UHFFFAOYSA-N diethyl(dimethyl)azanium Chemical compound CC[N+](C)(C)CC ZJHQDSMOYNLVLX-UHFFFAOYSA-N 0.000 claims 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims 1
- GELSOTNVVKOYAW-UHFFFAOYSA-N ethyl(triphenyl)phosphanium Chemical compound C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(CC)C1=CC=CC=C1 GELSOTNVVKOYAW-UHFFFAOYSA-N 0.000 claims 1
- 235000011187 glycerol Nutrition 0.000 claims 1
- 125000001475 halogen functional group Chemical group 0.000 claims 1
- 239000006259 organic additive Substances 0.000 claims 1
- HJKYXKSLRZKNSI-UHFFFAOYSA-I pentapotassium;hydrogen sulfate;oxido sulfate;sulfuric acid Chemical compound [K+].[K+].[K+].[K+].[K+].OS([O-])(=O)=O.[O-]S([O-])(=O)=O.OS(=O)(=O)O[O-].OS(=O)(=O)O[O-] HJKYXKSLRZKNSI-UHFFFAOYSA-I 0.000 claims 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims 1
- 229940093930 potassium iodate Drugs 0.000 claims 1
- 235000006666 potassium iodate Nutrition 0.000 claims 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical group O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims 1
- OORMKVJAUGZYKP-UHFFFAOYSA-M tetrapropylphosphanium;hydroxide Chemical compound [OH-].CCC[P+](CCC)(CCC)CCC OORMKVJAUGZYKP-UHFFFAOYSA-M 0.000 claims 1
- 239000000463 material Substances 0.000 description 18
- 239000002904 solvent Substances 0.000 description 10
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 9
- 238000009472 formulation Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000004615 ingredient Substances 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 235000015165 citric acid Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- NMRPBPVERJPACX-UHFFFAOYSA-N (3S)-octan-3-ol Natural products CCCCCC(O)CC NMRPBPVERJPACX-UHFFFAOYSA-N 0.000 description 1
- OKIYQFLILPKULA-UHFFFAOYSA-N 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane Chemical compound COC(F)(F)C(F)(F)C(F)(F)C(F)(F)F OKIYQFLILPKULA-UHFFFAOYSA-N 0.000 description 1
- RIQRGMUSBYGDBL-UHFFFAOYSA-N 1,1,1,2,2,3,4,5,5,5-decafluoropentane Chemical compound FC(F)(F)C(F)C(F)C(F)(F)C(F)(F)F RIQRGMUSBYGDBL-UHFFFAOYSA-N 0.000 description 1
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- DFUYAWQUODQGFF-UHFFFAOYSA-N 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane Chemical compound CCOC(F)(F)C(F)(F)C(F)(F)C(F)(F)F DFUYAWQUODQGFF-UHFFFAOYSA-N 0.000 description 1
- WMDZKDKPYCNCDZ-UHFFFAOYSA-N 2-(2-butoxypropoxy)propan-1-ol Chemical compound CCCCOC(C)COC(C)CO WMDZKDKPYCNCDZ-UHFFFAOYSA-N 0.000 description 1
- WOFPPJOZXUTRAU-UHFFFAOYSA-N 2-Ethyl-1-hexanol Natural products CCCCC(O)CCC WOFPPJOZXUTRAU-UHFFFAOYSA-N 0.000 description 1
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 1
- LHMSGVQQFOFVAP-UHFFFAOYSA-N 3-amino-10h-acridine-9-thione Chemical compound C1=CC=C2C(=S)C3=CC=C(N)C=C3NC2=C1 LHMSGVQQFOFVAP-UHFFFAOYSA-N 0.000 description 1
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 description 1
- 229910020366 ClO 4 Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229910010421 TiNx Inorganic materials 0.000 description 1
- 229910010303 TiOxNy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- IAJILQKETJEXLJ-QTBDOELSSA-N aldehydo-D-glucuronic acid Chemical compound O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)C(O)=O IAJILQKETJEXLJ-QTBDOELSSA-N 0.000 description 1
- 125000005910 alkyl carbonate group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 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
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- SMSCVBBYKOFGCY-UHFFFAOYSA-M ethyl(triphenyl)phosphanium;hydroxide Chemical compound [OH-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(CC)C1=CC=CC=C1 SMSCVBBYKOFGCY-UHFFFAOYSA-M 0.000 description 1
- 229940104869 fluorosilicate Drugs 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007334 memory performance Effects 0.000 description 1
- 229940104873 methyl perfluorobutyl ether Drugs 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 235000011083 sodium citrates Nutrition 0.000 description 1
- LZPMJIKOSBZRCP-UHFFFAOYSA-M sodium hypochlorous acid chlorate Chemical compound Cl(=O)(=O)[O-].[Na+].ClO LZPMJIKOSBZRCP-UHFFFAOYSA-M 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005622 tetraalkylammonium hydroxides Chemical class 0.000 description 1
- FDXKBUSUNHRUIZ-UHFFFAOYSA-M tetramethylazanium;chlorite Chemical compound [O-]Cl=O.C[N+](C)(C)C FDXKBUSUNHRUIZ-UHFFFAOYSA-M 0.000 description 1
- XOGCTUKDUDAZKA-UHFFFAOYSA-N tetrapropylphosphanium Chemical compound CCC[P+](CCC)(CCC)CCC XOGCTUKDUDAZKA-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/32—Alkaline compositions
- C23F1/38—Alkaline compositions for etching refractory metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32134—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by liquid etching only
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Weting (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
Claims (20)
- マイクロ電子デバイスからモリブデンを除去するためのエッチャント組成物であって、
少なくとも1つの酸化剤;
少なくとも1つの酸化剤安定剤;
少なくとも1つの塩基;及び
水、
を含み、アンモニア又は水酸化アンモニウムを含まず、7.5~13のpHを有する、エッチャント組成物。 - 酸化剤が、過酸化水素(H2O2)、FeCl3、FeF3、Fe(NO3)3、Sr(NO3)2、CoF3、MnF3、オキソン、(2KHSO5・KHSO4・K2SO4)、硝酸(HNO3)、ペルオキソモノ硫酸アンモニウム、亜塩素酸アンモニウム(NH4ClO2)、塩素酸アンモニウム(NH4ClO3)、ヨウ素酸アンモニウム(NH4IO3)、硝酸アンモニウム(NH4NO3)、過ホウ酸アンモニウム(NH4BO3)、過塩素酸アンモニウム(NH4ClO4)、過ヨウ素酸アンモニウム(NH4IO4)、過硫酸アンモニウム((NH4)2S2O8)、次亜塩素酸アンモニウム(NH4ClO)、タングステン酸アンモニウム((NH4)10H2(W2O7))、過硫酸ナトリウム(Na2S2O8)、次亜塩素酸ナトリウム(NaClO)、過ホウ酸ナトリウム、ヨウ素酸カリウム(KIO3)、過マンガン酸カリウム(KMnO4)、過硫酸カリウム(K2S2O8)、次亜塩素酸カリウム(KClO)、亜塩素酸テトラメチルアンモニウム((N(CH3)4)ClO2)、塩素酸テトラメチルアンモニウム((N(CH3)4)ClO3)、ヨウ化テトラメチルアンモニウム((N(CH3)4)IO3)、過ホウ酸テトラメチルアンモニウム((N(CH3)4)BO3)、過塩素酸テトラメチルアンモニウム((N(CH3)4)ClO4)、過ヨウ化テトラメチルアンモニウム((N(CH3)4)IO4)、過硫酸テトラメチルアンモニウム((N(CH3)4)S2O8)、ペルオキソ一硫酸テトラブチルアンモニウム、ペルオキソ一硫酸、尿素過酸化水素((CO(NH2)2)H2O2)、過酢酸(CH3(CO)OOH)、t-ブチルヒドロペルオキシド、ニトロベンゼンスルホネート、1,4-ベンゾキノン、トルキノン、ジメチル-1,4-ベンゾキノン、クロラニル、アロキサン、過ヨウ素酸、及びそれらの組合せからなる群より選択される種を含む、請求項1に記載のエッチャント組成物。
- 少なくとも1つの酸化剤が、過酸化水素、過酸化尿素-水素、過硫酸アンモニウム、過ヨウ素酸、過酢酸、又はt-ブチルヒドロペルオキシドを含む、請求項1に記載のエッチャント組成物。
- エッチャント組成物が、少なくとも1つの酸化剤を約0.1重量%~約5重量%含む、請求項1に記載のエッチャント組成物。
- 少なくとも1つの酸化剤安定剤が、グリシン、セリン、プロリン、ロイシン、アラニン、アスパラギン、アスパラギン酸、グルタミン、バリン及びリジン、ニトリロ三酢酸、イミノ二酢酸、エチドロン酸、エチレンジアミン四酢酸(EDTA)、(1,2-シクロヘキシレンジニトリロ)四酢酸(CDTA)、尿酸、テトラグライム、ジエチレントリアミン五酢酸、プロピレンジアミン四酢酸、エチレンジアミンジコハク酸、スルファニルアミド、及びそれらの組合せからなる群より選択される種を含む、請求項1に記載のエッチャント組成物。
- 酸化剤安定剤がCDTA又はEDTAを含む、請求項5に記載のエッチャント組成物。
- エッチャント組成物が、少なくとも1つの酸化剤安定剤を約0.0001重量%~約1.0重量%含む、請求項1に記載のエッチャント組成物。
- 塩基が、アルカリ金属水酸化物、アルカリ土類金属水酸化物、水酸化テトラメチルアンモニウム(TMAH)、水酸化テトラエチルアンモニウム(TEAH)、水酸化テトラプロピルアンモニウム(TPAH)、水酸化テトラブチルアンモニウム(TBAH)、トリブチルメチルアンモニウム水酸化物(TBMAH)、ベンジルトリメチルアンモニウム水酸化物(BTMAH)、水酸化コリン、エチルトリメチルアンモニウム水酸化物、トリス(2-ヒドロキシエチル)メチルアンモニウム水酸化物、ジエチルジメチルアンモニウム水酸化物、水酸化テトラブチルホスホニウム(TBPH)、テトラメチルホスホニウムヒドロキシド、テトラエチルホスホニウムヒドロキシド、テトラプロピルホスホニウムヒドロキシド、ベンジルトリフェニルホスホニウム水酸化物、メチルトリフェニルホスホニウム水酸化物、エチルトリフェニルホスホニウム水酸化物、N-プロピルトリフェニルホスホニウム水酸化物、及びそれらの組合せからなる群より選択される種を含む、請求項1に記載のエッチャント組成物。
- 塩基が、水酸化テトラメチルアンモニウム、水酸化コリン、又はそれらの組合せを含む、請求項1に記載のエッチャント組成物。
- エッチャント組成物が、約0.1重量%~約10重量%の塩基を含む、請求項1に記載のエッチャント組成物。
- エッチャント組成物が、8と11との間のpHを有する、請求項1に記載のエッチャント組成物。
- エッチャント組成物が少なくとも1つの錯化剤をさらに含む、請求項1に記載のエッチャント組成物。
- 少なくとも1つの錯化剤が、アミノエチルエタノールアミン、N-メチルアミノエタノール、アミノエトキシエタノール、ジメチルアミノエトキシエタノール、ジエタノールアミン、N-メチルジエタノールアミン、モノエタノールアミン(MEA)、トリエタノールアミン(TEA)、1-アミノ-2-プロパノール、2-アミノ-1-ブタノール、イソブタノールアミン、トリエチレンジアミン、4-(2-ヒドロキシエチル)モルホリン(HEM)、エチレンジアミン四酢酸(EDTA)、m-キシレンジアミン(MXDA)、イミノ二酢酸(IDA)、2-(ヒドロキシエチル)イミノ二酢酸(HIDA)、ニトリロ三酢酸、チオ尿素、1,1,3,3-テトラメチル尿素、尿素、尿素誘導体、尿酸、アラニン、アルギニン、アスパラギン、アスパラギン酸、システイン、グルタミン酸、グルタミン、ヒスチジン、イソロイシン、ロイシン、リジン、メチオニン、フェニルアラニン、プロリン、セリン、トレオニン、トリプトファン、チロシン、バリン、1-ヒドロキシエチリデン-1,1-ジホスホン酸(HEDP)、1,5,9-トリアザシクロドデカン-N,N’,N’’-トリス(メチレンホスホン酸)(DOTRP)、1,4,7,10-テトラアザシクロドデカン-N,N’,N’’,N’’’-テトラキス(メチレンホスホン酸)(DOTP)、ニトリロトリス(メチレン)トリホスホン酸、ジエチレントリアミンペンタキス(メチレンホスホン酸)(DETAP)、アミノトリ(メチレンホスホン酸)、ビス(ヘキサメチレン)トリアミンペンタメチレンホスホン酸、1,4,7-トリアザシクロノナン-N,N’,N’’,-トリス(メチレンホスホン酸(NOTP)、ヒドロキシエチルジホスホン酸、ニトリロトリス(メチレン)ホスホン酸、2-ホスホノ-ブタン-1,2,3,4-テトラカルボン酸、カルボキシエチルホスホン酸、アミノエチルホスホン酸、グリホサート、エチレンジアミンテトラ(メチレンホスホン酸)フェニルホスホン酸、シュウ酸、コハク酸、マレイン酸、リンゴ酸、マロン酸、アジピン酸、フタル酸、クエン酸、クエン酸ナトリウム、クエン酸カリウム、クエン酸アンモニウム、トリカルバリル酸、トリメチロールプロピオン酸、酒石酸、グルクロン酸、2-カルボキシピリジン、4,5-ジヒドロキシ-1,3-ベンゼンジスルホン酸二ナトリウム塩、及びそれらの組合せからなる群より選択される種を含む、請求項12に記載のエッチャント組成物。
- エッチャント組成物が少なくとも1つの有機溶媒をさらに含む、請求項1に記載のエッチャント組成物。
- 少なくとも1つの有機溶媒が、2-ピロリジノン、1-(2-ヒドロキシエチル)-2-ピロリジノン(HEP)、グリセリン、1,4-ブタンジオール、テトラメチレンスルホン、ジメチルスルホン、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、テトラグライム、ジグリム、ジエチレングリコールモノメチルエーテル、トリエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、トリエチレングリコールモノエチルエーテル、エチレングリコールモノプロピルエーテル、エチレングリコールモノブチルエーテル、ジエチレングリコールモノブチルエーテル(DEGBE)、トリエチレングリコールモノブチルエーテル(TEGBE)、エチレングリコールモノヘキシルエーテル(EGHE)、ジエチレングリコールモノヘキシルエーテル(DEGHE)、エチレングリコールフェニルエーテル、プロピレングリコールメチルエーテル、ジプロピレングリコールメチルエーテル(DPGME)、トリプロピレングリコールメチルエーテル(TPGME)、ジプロピレングリコールジメチルエーテル、ジプロピレングリコールエチルエーテル、プロピレングリコールn-プロピルエーテル、ジプロピレングリコールn-プロピルエーテル(DPGPE)、トリプロピレングリコールn-プロピルエーテル、プロピレングリコールn-ブチルエーテル、ジプロピレングリコールn-ブチルエーテル、トリプロピレングリコールn-ブチルエーテル、又はプロピレングリコールフェニルエーテル、及びそれらの組合せからなる群より選択される種を含む有機添加剤からなる群より選択される種を含む、請求項14に記載のエッチャント組成物。
- 少なくとも1つの有機溶媒がプロピレングリコールである、請求項14に記載のエッチャント組成物。
- エッチャント組成物が、少なくとも1つの金属腐食防止剤をさらに含む、請求項1に記載のエッチャント組成物。
- 少なくとも1つの金属腐食防止剤が、5-アミノテトラゾール、5-フェニル-ベンゾトリアゾール、1H-テトラゾール-5-酢酸、1-フェニル-2-テトラゾリン-5-チオン、ベンズイミダゾール、メチルテトラゾール、ピラゾール、5-アミノ-1,3,4-チアジアゾール-2-チオール(ATDT)、ベンゾトリアゾール(BTA)、1,2,4-トリアゾール(TAZ)、1,2,3-トリアゾール、トリルトリアゾール、5-メチル-ベンゾトリアゾール(mBTA)、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、ベンゾトリアゾールカルボン酸、3-アミノ-5-メルカプト-1,2,4-トリアゾール、1-アミノ-1,2,4-トリアゾール、ヒドロキシベンゾトリアゾール、2-(5-アミノ-ペンチル)-ベンゾトリアゾール、1-アミノ-1,2,3-トリアゾール、1-アミノ-5-メチル-1,2,3-トリアゾール、3-アミノ-1,2,4-トリアゾール(3-ATA)、3-メルカプト-1,2,4-トリアゾール、3-イソプロピル-1,2,4-トリアゾール、5-フェニルチオール-ベンゾトリアゾール、ハロ-ベンゾトリアゾール(ハロ=F、Cl、Br又はI)、ナフトトリアゾール、2-メルカプトベンゾイミダゾール(MBI)、2-メルカプトベンゾチアゾール、4-メチル-2-フェニルイミダゾール、2-メルカプトチアゾリン、5-アミノ-1,2,4-トリアゾール(5-ATA)、3-アミノ-5-メルカプト-1,2,4-トリアゾール、ペンチレンテトラゾール、5-フェニル-1H-テトラゾール、5-ベンジル-1H-テトラゾール、2,4-ジアミノ-6-メチル-1,3,5-トリアジン、チアゾール、トリアジン、メチルテトラゾール、1,3-ジメチル-2-イミダゾリジノン、1,5-ペンタメチレンテトラゾール、1-フェニル-5-メルカプトテトラゾール、ジアミノメチルトリアジン、イミダゾリンチオン、4-メチル-4H-1,2,4-トリアゾール-3-チオール、4-アミノ-4H-1,2,4-トリアゾール、3-アミノ-5-メチルチオ-1H-1,2,4-トリアゾール、ベンゾチアゾール、イミダゾール、インジアゾール、アデニン、アデノシン、カルバゾール、及びそれらの組合せからなる群より選択される種を含む、請求項17に記載のエッチャント組成物。
- 少なくとも1つの金属腐食防止剤がトリルトリアゾールである、請求項18に記載のエッチャント組成物。
- マイクロ電子デバイスからモリブデンを除去する方法であって、
i)マイクロ電子デバイスからモリブデンを少なくとも部分的に除去するのに十分な時間、マイクロ電子デバイスを、
少なくとも1つの酸化剤;
少なくとも1つの酸化剤安定剤;及び
少なくとも1つの塩基、
を含むエッチャント組成物と接触させる工程と、
ii)モリブデンを5~200Å/分のエッチング速度でエッチングする工程と、
を含み、エッチャント組成物はアンモニア又は水酸化アンモニウムを含まず、7.5~13のpHを有する、マイクロ電子デバイスからのモリブデン除去方法。
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US11492709B2 (en) | 2022-11-08 |
KR20220166348A (ko) | 2022-12-16 |
EP4136273A4 (en) | 2024-05-01 |
US20230030323A1 (en) | 2023-02-02 |
TWI789741B (zh) | 2023-01-11 |
EP4136273A1 (en) | 2023-02-22 |
WO2021211708A1 (en) | 2021-10-21 |
US20210324525A1 (en) | 2021-10-21 |
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