KR102070323B1 - 식각액 조성물 - Google Patents
식각액 조성물 Download PDFInfo
- Publication number
- KR102070323B1 KR102070323B1 KR1020160133292A KR20160133292A KR102070323B1 KR 102070323 B1 KR102070323 B1 KR 102070323B1 KR 1020160133292 A KR1020160133292 A KR 1020160133292A KR 20160133292 A KR20160133292 A KR 20160133292A KR 102070323 B1 KR102070323 B1 KR 102070323B1
- Authority
- KR
- South Korea
- Prior art keywords
- acid
- etching
- molybdenum
- film
- weight
- 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.)
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- 238000005530 etching Methods 0.000 title claims abstract description 142
- 239000000203 mixture Substances 0.000 title claims abstract description 99
- 239000010949 copper Substances 0.000 claims abstract description 104
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 100
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 98
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 98
- 239000011733 molybdenum Substances 0.000 claims abstract description 98
- 229910052802 copper Inorganic materials 0.000 claims abstract description 97
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 38
- 150000001875 compounds Chemical class 0.000 claims abstract description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003112 inhibitor Substances 0.000 claims abstract description 25
- 150000001491 aromatic compounds Chemical class 0.000 claims abstract description 24
- 150000001923 cyclic compounds Chemical class 0.000 claims abstract description 24
- 150000003973 alkyl amines Chemical class 0.000 claims abstract description 23
- 150000007522 mineralic acids Chemical class 0.000 claims abstract description 19
- 150000007524 organic acids Chemical class 0.000 claims abstract description 19
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 150000003839 salts Chemical class 0.000 claims abstract description 17
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 17
- 239000011593 sulfur Substances 0.000 claims abstract description 17
- 235000005985 organic acids Nutrition 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 15
- JZTPOMIFAFKKSK-UHFFFAOYSA-N O-phosphonohydroxylamine Chemical class NOP(O)(O)=O JZTPOMIFAFKKSK-UHFFFAOYSA-N 0.000 claims abstract description 5
- -1 aminocarboxyl Chemical group 0.000 claims description 38
- 150000002222 fluorine compounds Chemical class 0.000 claims description 15
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 15
- UYTPUPDQBNUYGX-UHFFFAOYSA-N guanine Chemical compound O=C1NC(N)=NC2=C1N=CN2 UYTPUPDQBNUYGX-UHFFFAOYSA-N 0.000 claims description 14
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 13
- 239000003381 stabilizer Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims description 10
- DPBLXKKOBLCELK-UHFFFAOYSA-N pentan-1-amine Chemical compound CCCCCN DPBLXKKOBLCELK-UHFFFAOYSA-N 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- NBZBKCUXIYYUSX-UHFFFAOYSA-N iminodiacetic acid Chemical compound OC(=O)CNCC(O)=O NBZBKCUXIYYUSX-UHFFFAOYSA-N 0.000 claims description 9
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 8
- DRAVOWXCEBXPTN-UHFFFAOYSA-N isoguanine Chemical compound NC1=NC(=O)NC2=C1NC=N2 DRAVOWXCEBXPTN-UHFFFAOYSA-N 0.000 claims description 8
- LRFVTYWOQMYALW-UHFFFAOYSA-N 9H-xanthine Chemical compound O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 claims description 6
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims description 6
- 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 claims description 6
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 6
- WJYIASZWHGOTOU-UHFFFAOYSA-N Heptylamine Chemical compound CCCCCCCN WJYIASZWHGOTOU-UHFFFAOYSA-N 0.000 claims description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 6
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N Valeric acid Natural products CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- FDGQSTZJBFJUBT-UHFFFAOYSA-N hypoxanthine Chemical compound O=C1NC=NC2=C1NC=N2 FDGQSTZJBFJUBT-UHFFFAOYSA-N 0.000 claims description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- YAPQBXQYLJRXSA-UHFFFAOYSA-N theobromine Chemical compound CN1C(=O)NC(=O)C2=C1N=CN2C YAPQBXQYLJRXSA-UHFFFAOYSA-N 0.000 claims description 6
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 6
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 claims description 5
- 125000003277 amino group Chemical group 0.000 claims description 5
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 claims description 5
- 229940100684 pentylamine Drugs 0.000 claims description 5
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 5
- 229930024421 Adenine Natural products 0.000 claims description 4
- GFFGJBXGBJISGV-UHFFFAOYSA-N Adenine Chemical compound NC1=NC=NC2=C1N=CN2 GFFGJBXGBJISGV-UHFFFAOYSA-N 0.000 claims description 4
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 4
- 229960000643 adenine Drugs 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 claims description 4
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 claims description 4
- PVOAHINGSUIXLS-UHFFFAOYSA-N 1-Methylpiperazine Chemical compound CN1CCNCC1 PVOAHINGSUIXLS-UHFFFAOYSA-N 0.000 claims description 3
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims description 3
- LTHNHFOGQMKPOV-UHFFFAOYSA-N 2-ethylhexan-1-amine Chemical compound CCCCC(CC)CN LTHNHFOGQMKPOV-UHFFFAOYSA-N 0.000 claims description 3
- WFCSWCVEJLETKA-UHFFFAOYSA-N 2-piperazin-1-ylethanol Chemical compound OCCN1CCNCC1 WFCSWCVEJLETKA-UHFFFAOYSA-N 0.000 claims description 3
- ULRPISSMEBPJLN-UHFFFAOYSA-N 2h-tetrazol-5-amine Chemical compound NC1=NN=NN1 ULRPISSMEBPJLN-UHFFFAOYSA-N 0.000 claims description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- LRUDIIUSNGCQKF-UHFFFAOYSA-N 5-methyl-1H-benzotriazole Chemical compound C1=C(C)C=CC2=NNN=C21 LRUDIIUSNGCQKF-UHFFFAOYSA-N 0.000 claims description 3
- XZGLNCKSNVGDNX-UHFFFAOYSA-N 5-methyl-2h-tetrazole Chemical compound CC=1N=NNN=1 XZGLNCKSNVGDNX-UHFFFAOYSA-N 0.000 claims description 3
- 229910016569 AlF 3 Inorganic materials 0.000 claims description 3
- 239000004254 Ammonium phosphate Substances 0.000 claims description 3
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- 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 3
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004471 Glycine Substances 0.000 claims description 3
- UGQMRVRMYYASKQ-UHFFFAOYSA-N Hypoxanthine nucleoside Natural products OC1C(O)C(CO)OC1N1C(NC=NC2=O)=C2N=C1 UGQMRVRMYYASKQ-UHFFFAOYSA-N 0.000 claims description 3
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 claims description 3
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims description 3
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 claims description 3
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 235000004279 alanine Nutrition 0.000 claims description 3
- 229940124277 aminobutyric acid Drugs 0.000 claims description 3
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 3
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 3
- 229960001948 caffeine Drugs 0.000 claims description 3
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 claims description 3
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 3
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 3
- 235000019797 dipotassium phosphate Nutrition 0.000 claims description 3
- 229910000396 dipotassium phosphate Inorganic materials 0.000 claims description 3
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 3
- 229910000397 disodium phosphate Inorganic materials 0.000 claims description 3
- 235000019800 disodium phosphate Nutrition 0.000 claims description 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- BTCSSZJGUNDROE-UHFFFAOYSA-N gamma-aminobutyric acid Chemical compound NCCCC(O)=O BTCSSZJGUNDROE-UHFFFAOYSA-N 0.000 claims description 3
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- 239000011591 potassium Substances 0.000 claims description 3
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- 235000011009 potassium phosphates Nutrition 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
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- 235000011008 sodium phosphates Nutrition 0.000 claims description 3
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- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 229940075420 xanthine Drugs 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 2
- XSCHRSMBECNVNS-UHFFFAOYSA-N quinoxaline Chemical compound N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 claims 1
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- QFKJQDAZSYZAOM-UHFFFAOYSA-N (1-oxidanyl-1-phosphono-ethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O.OP(=O)(O)C(O)(C)P(O)(O)=O QFKJQDAZSYZAOM-UHFFFAOYSA-N 0.000 description 1
- ISYYTKAMGZWYBB-UHFFFAOYSA-N 2-ethylhexan-1-amine;hexan-1-amine Chemical compound CCCCCCN.CCCCC(CC)CN ISYYTKAMGZWYBB-UHFFFAOYSA-N 0.000 description 1
- BLFRQYKZFKYQLO-UHFFFAOYSA-N 4-aminobutan-1-ol Chemical compound NCCCCO BLFRQYKZFKYQLO-UHFFFAOYSA-N 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- CALWMVCRLNXACC-UHFFFAOYSA-N N-ethylhexan-1-amine 2-ethylhexan-1-amine Chemical compound C(C)C(CN)CCCC.C(C)NCCCCCC CALWMVCRLNXACC-UHFFFAOYSA-N 0.000 description 1
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 description 1
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- C09K13/00—Etching, surface-brightening or pickling compositions
- C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
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- C—CHEMISTRY; METALLURGY
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- C09K13/00—Etching, surface-brightening or pickling compositions
- C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K13/00—Etching, surface-brightening or pickling compositions
- C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
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- 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
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Abstract
Description
도 2는 본 발명의 실시예 6에 따른 식각액 조성물을 이용하여 구리 및 몰리브덴 막을 식각한 후 시편의 단면을 틸트(tilt)하여 주사전자현미경으로 관찰한 사진이다.
도 3은 본 발명의 실시예 11에 따른 식각액 조성물을 이용하여 구리 및 몰리브덴 막을 식각한 후 시편의 단면을 틸트(tilt)하여 주사전자현미경으로 관찰한 사진이다.
도 4는 본 발명의 비교예 1에 따른 식각액 조성물을 이용하여 구리 및 몰리브덴 막을 식각한 후 시편의 단면을 틸트(tilt)하여 주사전자현미경으로 관찰한 사진이다.
도 5는 본 발명의 비교예 6에 따른 식각액 조성물을 이용하여 구리 및 몰리브덴 막을 식각한 후 시편의 단면을 틸트(tilt)하여 주사전자현미경으로 관찰한 사진이다.
도 6은 본 발명의 실시예 1에 따른 식각액 조성물을 이용하여 구리 및 몰리브덴 막을 식각한 후 시편의 단면을 주사전자현미경으로 관찰한 사진이다.
도 7은 본 발명의 비교예 6에 따른 식각액 조성물을 이용하여 구리/몰리브덴 막을 식각한 후 시편의 단면을 주사전자현미경으로 관찰한 사진이다.
중량(%) | |||||||||
과산화수소 | AATZ |
IDA | AHP | NH4HF2 | 구아닌 | C4 이상을 포함하는 알킬아민 | 물 | ||
실시예1 | 15 | 1 | 2 | 1 | 0.5 | 0.5 | b-AM | 1.0 | 79.0 |
실시예2 | 18 | 1 | 2 | 1 | 0.5 | 1.0 | b-AM | 1.0 | 75.5 |
실시예3 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | b-AM | 1.0 | 74.0 |
실시예4 | 20 | 1 | 2 | 1 | 0.5 | 1.0 | b-AM | 1.5 | 73.0 |
실시예5 | 20 | 1 | 2 | 1 | - | 1.0 | b-AM | 1.5 | 73.5 |
실시예6 | 18 | 1 | 2 | 1 | 0.5 | 1.0 | pn-AM | 1.0 | 75.5 |
실시예7 | 18 | 1 | 2 | 1 | - | 1.0 | pn-AM | 1.0 | 76.0 |
실시예8 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | pn-AM | 1.0 | 74.0 |
실시예9 | 18 | 1 | 2 | 1 | 0.5 | 1.0 | pn-AM | 1.5 | 75.0 |
실시예10 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | pn-AM | 1.5 | 73.5 |
실시예11 | 18 | 1 | 2 | 1 | 0.5 | 1.0 | hx-AM | 1.0 | 75.5 |
실시예12 | 18 | 1 | 2 | 1 | - | 1.0 | hx-AM | 1.0 | 76.0 |
실시예13 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | hx-AM | 1.0 | 74.0 |
실시예14 | 18 | 1 | 2 | 1 | 0.5 | 1.0 | hx-AM | 1.5 | 75.0 |
실시예15 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | hx-AM | 1.5 | 73.5 |
실시예16 | 15 | 1 | 2 | 1 | 0.5 | 0.5 | hp-AM | 1.0 | 79.0 |
실시예17 | 18 | 1 | 2 | 1 | 0.5 | 0.5 | hp-AM | 1.0 | 76.0 |
실시예18 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | hp-AM | 1.0 | 74.0 |
실시예19 | 18 | 1 | 2 | 1 | - | 0.5 | hp-AM | 1.5 | 76.0 |
실시예20 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | hp-AM | 1.5 | 73.5 |
실시예21 | 15 | 1 | 2 | 1 | 0.5 | 0.5 | o-AM | 1.0 | 79.0 |
실시예22 | 20 | 1 | 2 | 1 | 0.5 | 1.0 | o-AM | 1.0 | 73.5 |
실시예23 | 20 | 1 | 2 | 1 | - | 0.5 | o-AM | 1.0 | 74.5 |
실시예24 | 18 | 1 | 2 | 1 | 0.5 | 1.0 | o-AM | 1.5 | 75.0 |
실시예25 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | o-AM | 1.5 | 73.5 |
실시예26 | 18 | 1 | 2 | 1 | 0.5 | 0.5 | 2-e-1-hx-A | 1.0 | 76.0 |
실시예27 | 20 | 1 | 2 | 1 | 0.5 | 1.0 | 2-e-1-hx-A | 1.0 | 73.5 |
실시예28 | 18 | 1 | 2 | 1 | 0.5 | 0.5 | 2-e-1-hx-A | 1.5 | 75.5 |
실시예29 | 20 | 1 | 2 | 1 | 0.5 | 1.0 | 2-e-1-hx-A | 1.5 | 73.0 |
비교예1 | 15 | 1 | 2 | 1 | 0.5 | 0.5 | pr-AM | 1.0 | 79.0 |
비교예2 | 18 | 1 | 2 | 1 | 0.5 | 1.0 | pr-AM | 1.0 | 75.5 |
비교예3 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | pr-AM | 1.0 | 74.0 |
비교예4 | 18 | 1 | 2 | 1 | - | 1.0 | pr-AM | 1.5 | 75.5 |
비교예5 | 20 | 1 | 2 | 1 | 0.5 | 0.5 | e-AM | 1.5 | 73.5 |
비교예6 | 18 | 1 | 2 | 1 | 0.5 | 0.5 | - | - | 77.0 |
비교예7 | 18 | 1 | 2 | 1 | - | 0.5 | - | - | 77.5 |
비교예8 | 20 | 1 | 2 | 1 | 0.5 | 1.0 | - | - | 74.5 |
비교예9 | 20 | - | 2 | 1 | 0.5 | 0.5 | b-AM | 1.0 | 75.0 |
비교예10 | 20 | 1 | - | 1 | 0.5 | 0.5 | b-AM | 1.0 | 76.0 |
비교예11 | 20 | 1 | 2 | - | 0.5 | 0.5 | b-AM | 1.0 | 75.0 |
비교예12 | 20 | 1 | 2 | 1 | 0.5 | - | b-AM | 1.0 | 74.5 |
비교예13 | 20 | 1 | 2 | 1 | 0.5 | 1.0 | cyhx-AM | 1.0 | 73.5 |
식각종말점 [초] |
CD loss [㎛] |
테이퍼 앵글 (°) | 구리/몰리브덴막계면의 과식각 | |
실시예 1 | 80 | 1.07 | 53.8 | 없음 |
실시예 2 | 75 | 1.16 | 46.1 | 없음 |
실시예 3 | 70 | 1.09 | 47.7 | 없음 |
실시예 4 | 70 | 1.08 | 47.5 | 없음 |
실시예 5 | 75 | 1.15 | 51.6 | 없음 |
실시예 6 | 75 | 1.11 | 45.9 | 없음 |
실시예 7 | 80 | 1.14 | 48.5 | 없음 |
실시예 8 | 70 | 1.12 | 50.2 | 없음 |
실시예 9 | 75 | 1.11 | 50.7 | 없음 |
실시예 10 | 70 | 1.12 | 54.4 | 없음 |
실시예 11 | 75 | 1.15 | 51.3 | 없음 |
실시예 12 | 80 | 1.16 | 53.3 | 없음 |
실시예 13 | 70 | 1.13 | 46.7 | 없음 |
실시예 14 | 75 | 1.06 | 55.0 | 없음 |
실시예 15 | 70 | 1.10 | 50.2 | 없음 |
실시예 16 | 80 | 1.19 | 49.9 | 없음 |
실시예 17 | 70 | 1.17 | 45.4 | 없음 |
실시예 18 | 70 | 1.11 | 49.7 | 없음 |
실시예 19 | 75 | 1.19 | 54.8 | 없음 |
실시예 20 | 70 | 1.08 | 46.1 | 없음 |
실시예 21 | 80 | 1.09 | 52.7 | 없음 |
실시예 22 | 75 | 1.11 | 49.5 | 없음 |
실시예 23 | 70 | 1.19 | 53.7 | 없음 |
실시예 24 | 75 | 1.08 | 53.5 | 없음 |
실시예 25 | 75 | 1.11 | 49.6 | 없음 |
실시예 26 | 75 | 1.14 | 50.8 | 없음 |
실시예 27 | 70 | 1.15 | 46.3 | 없음 |
실시예 28 | 75 | 1.15 | 46.0 | 없음 |
실시예 29 | 70 | 1.18 | 49.1 | 없음 |
비교예 1 | 80 | 1.15 | 69.0 | 있음 |
비교예 2 | 75 | 1.10 | 75.8 | 있음 |
비교예 3 | 70 | 1.11 | 74.0 | 있음 |
비교예 4 | 75 | 1.13 | 76.6 | 있음 |
비교예 5 | 70 | 1.09 | 62.4 | 있음 |
비교예 6 | 75 | 1.08 | 65.6 | 있음 |
비교예 7 | 80 | 1.10 | 76.6 | 있음 |
비교예 8 | 70 | 1.05 | 69.7 | 있음 |
비교예 9 | 85 | 1.20 | 77.3 | 있음 |
비교예 10 | 75 | 1.15 | 74.6 | 있음 |
비교예 11 | 80 | 1.18 | 78.6 | 있음 |
비교예 12 | 75 | 1.16 | 74.5 | 있음 |
비교예 13 | 75 | 1.03 | 68.3 | 있음 |
Claims (13)
- 과산화수소; 분자 내에 산소, 황 및 질소 중에서 선택되는 어느 하나 또는 둘 이상을 포함하는 환형 또는 방향족화합물; 아미노카르복실계 또는 아미노인산계화합물; 유기산, 무기산 또는 그들의 염에서 선택되는 어느 하나 또는 둘 이상의 화합물; 언더컷억제제; 및 C4 내지 C8의 알킬아민을 포함하는 구리막과 몰리브덴막의 식각액 조성물.
- 제 1항에 있어서,
상기 식각액 조성물은 과산화수소 100 중량부를 기준으로, 환형 또는 방향족 화합물 0.1 내지 50 중량부; 아미노카르복실계 또는 아미노인산계화합물 0.1 내지 50 중량부; 유기산, 무기산 또는 그들의 염에서 선택되는 어느 하나 또는 둘 이상의 화합물 0.1 내지 50 중량부; 언터컷억제제 0.01 내지 20 중량부; 및 알킬아민 0.1 내지 50 중량부를 포함하는 구리막과 몰리브덴막의 식각액 조성물. - 제 1항에 있어서,
상기 식각액 조성물은 불소화합물을 더 포함하는 구리막과 몰리브덴막의 식각액 조성물. - 제 3항에 있어서,
상기 불소화합물은 과산화수소 100 중량부를 기준으로, 0.01 내지 20 중량부로 첨가되는 구리막과 몰리브덴막의 식각액 조성물. - 삭제
- 제 1항에 있어서,
상기 C4 내지 C8의 알킬아민은 부틸아민, 펜틸아민, 헥실아민, 헵틸아민, 옥틸아민 및 2-에틸-1-헥실아민에서 선택되는 어느 하나 또는 둘 이상의 혼합물인 구리막과 몰리브덴막의 식각액 조성물. - 제 1항에 있어서,
상기 환형 또는 방향족화합물은 옥사졸, 이미다졸, 피라졸, 트리아졸, 테트라졸, 5-아미노테트라졸, 메틸테트라졸, 피페라진, 메틸피페라진, 히드록실에틸피페라진, 벤즈이미다졸, 벤즈피라졸, 톨루트리아졸, 히드로톨루트리아졸 및 히드록시톨루트리아졸에서 선택되는 어느 하나 또는 둘 이상의 혼합물인 구리막과 몰리브덴막의 식각액 조성물. - 제 1항에 있어서,
상기 아미노카르복실계 또는 아미노인산계화합물은 분자내 아미노기와 함께, 카르복실산기 또는 포스폰산기를 포함하는 것인 구리막과 몰리브덴막의 식각액 조성물. - 제 1항에 있어서,
상기 아미노카르복실계 또는 아미노인산계화합물은 이미노디아세트산, 니트릴로트리아세트산, 에틸렌디아민테트라아세트산, 디에틸렌트리니트릴펜타아세트산, 아미노트리스(메틸렌포스폰산), (1-히드록시에탄-1,1-디일)비스(포스폰산), 에틸렌디아민 테트라(메틸렌포스폰산), 디에틸렌트리아민 펜타(메틸렌포스폰산), 알라닌, 글루탐산, 아미노부티르산 및 글리신에서 선택되는 어느 하나 또는 둘 이상의 혼합물인 구리막과 몰리브덴막의 식각액 조성물. - 제 1항에 있어서,
상기 유기산은 아세트산, 포름산, 부탄산, 시트르산, 글리콜산, 옥살산, 말론산, 펜탄산, 프로피온산, 타르타르산, 글루콘산, 글리코산 및 숙신산에서 선택되는 어느 하나 또는 둘 이상의 혼합물이고,
상기 무기산은 황산, 질산 및 인산에서 선택되는 어느 하나 또는 둘의 혼합물이고,
상기 무기산염 및 유기산염은 인산수소칼륨, 인산수소나트륨, 인산수소암모늄, 인산나트륨, 과인산나트륨, 인산칼륨, 과인산칼륨, 인산암모늄 및 과인산암모늄에서 선택되는 어느 하나 또는 둘 이상의 혼합물인 구리막과 몰리브덴막의 식각액 조성물. - 제 3항에 있어서,
상기 불소화합물은 HF, NaF, KF, AlF3, HBF, NH4HF2, NaHF2, KHF2 및 NH4BF4에서 선택되는 어느 하나 또는 둘 이상의 혼합물인 구리막과 몰리브덴막의 식각액 조성물. - 제 1항에 있어서,
상기 언더컷 억제제는 아데닌, 구아닌, 이소구아닌, 하이포크산틴, 크산틴, 테오브로민, 카페인 및 유린산에서 선택되는 하나 또는 둘 이상의 혼합물인 구리막과 몰리브덴막의 식각액 조성물. - 제 1항에 있어서,
상기 식각액 조성물은 과수안정제, 식각안정제 및 글라스 식각억제제에서 선택되는 어느 하나 또는 둘 이상의 첨가제를 더 포함하는 구리막과 몰리브덴막의 식각액 조성물.
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