JP2022504248A - 高品質酸化ケイ素薄膜の高温原子層堆積のための組成物 - Google Patents
高品質酸化ケイ素薄膜の高温原子層堆積のための組成物 Download PDFInfo
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- JP2022504248A JP2022504248A JP2021518587A JP2021518587A JP2022504248A JP 2022504248 A JP2022504248 A JP 2022504248A JP 2021518587 A JP2021518587 A JP 2021518587A JP 2021518587 A JP2021518587 A JP 2021518587A JP 2022504248 A JP2022504248 A JP 2022504248A
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- Prior art keywords
- bis
- reactor
- iso
- dimethylamino
- dimethylsilane
- Prior art date
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052814 silicon oxide Inorganic materials 0.000 title claims abstract description 40
- 239000000203 mixture Substances 0.000 title claims description 26
- 238000000231 atomic layer deposition Methods 0.000 title abstract description 47
- 239000010409 thin film Substances 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 108
- 230000008569 process Effects 0.000 claims abstract description 85
- 239000012686 silicon precursor Substances 0.000 claims abstract description 52
- 125000003118 aryl group Chemical group 0.000 claims abstract description 21
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 16
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims abstract description 15
- 239000001257 hydrogen Substances 0.000 claims abstract description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 13
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 12
- 125000005103 alkyl silyl group Chemical group 0.000 claims abstract description 8
- 238000010926 purge Methods 0.000 claims description 66
- 229910052760 oxygen Inorganic materials 0.000 claims description 47
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 46
- 239000007789 gas Substances 0.000 claims description 46
- 239000001301 oxygen Substances 0.000 claims description 46
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 25
- 238000000151 deposition Methods 0.000 claims description 25
- 239000000758 substrate Substances 0.000 claims description 24
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 22
- 150000004820 halides Chemical class 0.000 claims description 20
- -1 steam plasma Substances 0.000 claims description 20
- 239000012535 impurity Substances 0.000 claims description 18
- KAHVZNKZQFSBFW-UHFFFAOYSA-N n-methyl-n-trimethylsilylmethanamine Chemical compound CN(C)[Si](C)(C)C KAHVZNKZQFSBFW-UHFFFAOYSA-N 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 9
- 229910001868 water Inorganic materials 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- VBYLGQXERITIBP-UHFFFAOYSA-N n-[dimethylamino(methyl)silyl]-n-methylmethanamine Chemical compound CN(C)[SiH](C)N(C)C VBYLGQXERITIBP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 4
- 239000001307 helium Substances 0.000 claims description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- KFQPFPKLVQBQBZ-UHFFFAOYSA-N (2,5-dimethylpyrrolidin-1-yl)-trimethylsilane Chemical compound CC1CCC(C)N1[Si](C)(C)C KFQPFPKLVQBQBZ-UHFFFAOYSA-N 0.000 claims description 3
- SZSAVDMNBCBPDP-UHFFFAOYSA-N (2,6-dimethylpiperidin-1-yl)-dimethylsilane Chemical compound CC1CCCC(C)N1[SiH](C)C SZSAVDMNBCBPDP-UHFFFAOYSA-N 0.000 claims description 3
- NFVBAYVEVKKWEE-UHFFFAOYSA-N (2,6-dimethylpiperidin-1-yl)-trimethylsilane Chemical compound CC1CCCC(C)N1[Si](C)(C)C NFVBAYVEVKKWEE-UHFFFAOYSA-N 0.000 claims description 3
- ZKSILZRWWNJBNJ-UHFFFAOYSA-N 2-methyl-n-triethylsilylpropan-2-amine Chemical compound CC[Si](CC)(CC)NC(C)(C)C ZKSILZRWWNJBNJ-UHFFFAOYSA-N 0.000 claims description 3
- AJSVPOCHNBDOKA-UHFFFAOYSA-N 2-methyl-n-trimethylsilylpropan-1-amine Chemical compound CC(C)CN[Si](C)(C)C AJSVPOCHNBDOKA-UHFFFAOYSA-N 0.000 claims description 3
- GVHIREZHTRULPT-UHFFFAOYSA-N 2-methyl-n-trimethylsilylpropan-2-amine Chemical compound CC(C)(C)N[Si](C)(C)C GVHIREZHTRULPT-UHFFFAOYSA-N 0.000 claims description 3
- MOFYWKAYHMTHHL-UHFFFAOYSA-N 3,3-dipyrrolidin-1-ylprop-1-enylsilane Chemical compound N1(CCCC1)C(N1CCCC1)C=C[SiH3] MOFYWKAYHMTHHL-UHFFFAOYSA-N 0.000 claims description 3
- NZHWWOPEBOADOJ-UHFFFAOYSA-N C(C)(C)(C)N[SiH](C=CC)NC(C)(C)C Chemical compound C(C)(C)(C)N[SiH](C=CC)NC(C)(C)C NZHWWOPEBOADOJ-UHFFFAOYSA-N 0.000 claims description 3
- JPCHAYLGSVKGRK-UHFFFAOYSA-N C(C)N(C)[SiH](C=CC)N(CC)C Chemical compound C(C)N(C)[SiH](C=CC)N(CC)C JPCHAYLGSVKGRK-UHFFFAOYSA-N 0.000 claims description 3
- GRIWNPFFZMMYFL-UHFFFAOYSA-N CC1CCCC(C)N1C[SiH3] Chemical compound CC1CCCC(C)N1C[SiH3] GRIWNPFFZMMYFL-UHFFFAOYSA-N 0.000 claims description 3
- JOOMLFKONHCLCJ-UHFFFAOYSA-N N-(trimethylsilyl)diethylamine Chemical compound CCN(CC)[Si](C)(C)C JOOMLFKONHCLCJ-UHFFFAOYSA-N 0.000 claims description 3
- VOKVWBFNWOQFKH-UHFFFAOYSA-N N-[(propan-2-ylamino)-prop-1-enylsilyl]propan-2-amine Chemical compound C(C)(C)N[SiH](C=CC)NC(C)C VOKVWBFNWOQFKH-UHFFFAOYSA-N 0.000 claims description 3
- NQKCIEMFVOQKHX-UHFFFAOYSA-N N-[[di(propan-2-yl)amino]-prop-1-enylsilyl]-N-propan-2-ylpropan-2-amine Chemical compound C(C)(C)N(C(C)C)[SiH](C=CC)N(C(C)C)C(C)C NQKCIEMFVOQKHX-UHFFFAOYSA-N 0.000 claims description 3
- MQWJCFBYOCOAQO-UHFFFAOYSA-N N-[diethylamino(prop-1-enyl)silyl]-N-ethylethanamine Chemical compound C(C)N(CC)[SiH](C=CC)N(CC)CC MQWJCFBYOCOAQO-UHFFFAOYSA-N 0.000 claims description 3
- NQXWICXWTUBFHT-UHFFFAOYSA-N N-diethylsilyl-2-methylpropan-2-amine Chemical compound CC[SiH](CC)NC(C)(C)C NQXWICXWTUBFHT-UHFFFAOYSA-N 0.000 claims description 3
- HFFIGVUBWMEZJT-UHFFFAOYSA-N N-diethylsilyl-N-methylmethanamine Chemical compound CC[SiH](CC)N(C)C HFFIGVUBWMEZJT-UHFFFAOYSA-N 0.000 claims description 3
- ZCNZAWGUQXCNHK-UHFFFAOYSA-N N-diethylsilyl-N-propan-2-ylpropan-2-amine Chemical compound CC[SiH](CC)N(C(C)C)C(C)C ZCNZAWGUQXCNHK-UHFFFAOYSA-N 0.000 claims description 3
- WJDNXDURVAFUJT-UHFFFAOYSA-N N-diethylsilylpropan-2-amine Chemical compound CC[SiH](CC)NC(C)C WJDNXDURVAFUJT-UHFFFAOYSA-N 0.000 claims description 3
- WEZADBNWDWZTJH-UHFFFAOYSA-N N-dimethylsilyl-2-methylpropan-2-amine Chemical compound C[SiH](C)NC(C)(C)C WEZADBNWDWZTJH-UHFFFAOYSA-N 0.000 claims description 3
- SQIKBMFZMZLSMO-UHFFFAOYSA-N N-dimethylsilyl-N-propan-2-ylpropan-2-amine Chemical compound CC(C)N(C(C)C)[SiH](C)C SQIKBMFZMZLSMO-UHFFFAOYSA-N 0.000 claims description 3
- JRLANEBCUVHNQP-UHFFFAOYSA-N N-dimethylsilylpropan-2-amine Chemical compound CC(C)N[SiH](C)C JRLANEBCUVHNQP-UHFFFAOYSA-N 0.000 claims description 3
- BAYBTHPPTMXTLT-UHFFFAOYSA-N diethyl(dipyrrolidin-1-yl)silane Chemical compound C1CCCN1[Si](CC)(CC)N1CCCC1 BAYBTHPPTMXTLT-UHFFFAOYSA-N 0.000 claims description 3
- ADTGAVILDBXARD-UHFFFAOYSA-N diethylamino(dimethyl)silicon Chemical compound CCN(CC)[Si](C)C ADTGAVILDBXARD-UHFFFAOYSA-N 0.000 claims description 3
- OFKNHDDXWSOGKH-UHFFFAOYSA-N dimethyl(dipyrrolidin-1-yl)silane Chemical compound C1CCCN1[Si](C)(C)N1CCCC1 OFKNHDDXWSOGKH-UHFFFAOYSA-N 0.000 claims description 3
- GWNYFISHEJZWOL-UHFFFAOYSA-N dimethyl(pyrrolidin-1-yl)silane Chemical compound C[SiH](C)N1CCCC1 GWNYFISHEJZWOL-UHFFFAOYSA-N 0.000 claims description 3
- KZFNONVXCZVHRD-UHFFFAOYSA-N dimethylamino(dimethyl)silicon Chemical compound CN(C)[Si](C)C KZFNONVXCZVHRD-UHFFFAOYSA-N 0.000 claims description 3
- FIRXZHKWFHIBOF-UHFFFAOYSA-N n-(dimethylamino-ethenyl-methylsilyl)-n-methylmethanamine Chemical compound CN(C)[Si](C)(C=C)N(C)C FIRXZHKWFHIBOF-UHFFFAOYSA-N 0.000 claims description 3
- BSBLUBXETMWDIS-UHFFFAOYSA-N n-[(tert-butylamino)-diethylsilyl]-2-methylpropan-2-amine Chemical compound CC(C)(C)N[Si](CC)(CC)NC(C)(C)C BSBLUBXETMWDIS-UHFFFAOYSA-N 0.000 claims description 3
- LREMVJGWYSKMSG-UHFFFAOYSA-N n-[(tert-butylamino)-dimethylsilyl]-2-methylpropan-2-amine Chemical compound CC(C)(C)N[Si](C)(C)NC(C)(C)C LREMVJGWYSKMSG-UHFFFAOYSA-N 0.000 claims description 3
- NFFNQWQZKZMMNC-UHFFFAOYSA-N n-[[di(propan-2-yl)amino]-diethylsilyl]-n-propan-2-ylpropan-2-amine Chemical compound CC(C)N(C(C)C)[Si](CC)(CC)N(C(C)C)C(C)C NFFNQWQZKZMMNC-UHFFFAOYSA-N 0.000 claims description 3
- IOEYTQJFJOCAAA-UHFFFAOYSA-N n-[[di(propan-2-yl)amino]-dimethylsilyl]-n-propan-2-ylpropan-2-amine Chemical compound CC(C)N(C(C)C)[Si](C)(C)N(C(C)C)C(C)C IOEYTQJFJOCAAA-UHFFFAOYSA-N 0.000 claims description 3
- FHBURLBCXNMPJX-UHFFFAOYSA-N n-[bis(dimethylamino)-ethylsilyl]-n-methylmethanamine Chemical compound CC[Si](N(C)C)(N(C)C)N(C)C FHBURLBCXNMPJX-UHFFFAOYSA-N 0.000 claims description 3
- AHKKZIUZTWZKDR-UHFFFAOYSA-N n-[bis(dimethylamino)-methylsilyl]-n-methylmethanamine Chemical compound CN(C)[Si](C)(N(C)C)N(C)C AHKKZIUZTWZKDR-UHFFFAOYSA-N 0.000 claims description 3
- VJDVRUZAQRISHN-UHFFFAOYSA-N n-[bis(dimethylamino)-phenylsilyl]-n-methylmethanamine Chemical compound CN(C)[Si](N(C)C)(N(C)C)C1=CC=CC=C1 VJDVRUZAQRISHN-UHFFFAOYSA-N 0.000 claims description 3
- AFKLLDITSFFTER-UHFFFAOYSA-N n-[butyl(diethyl)silyl]methanamine Chemical compound CCCC[Si](CC)(CC)NC AFKLLDITSFFTER-UHFFFAOYSA-N 0.000 claims description 3
- IGQSINGHTLVHPT-UHFFFAOYSA-N n-[diethyl-(propan-2-ylamino)silyl]propan-2-amine Chemical compound CC(C)N[Si](CC)(CC)NC(C)C IGQSINGHTLVHPT-UHFFFAOYSA-N 0.000 claims description 3
- ZRMAZYMYSQYPDU-UHFFFAOYSA-N n-[diethyl-[ethyl(methyl)amino]silyl]-n-methylethanamine Chemical compound CCN(C)[Si](CC)(CC)N(C)CC ZRMAZYMYSQYPDU-UHFFFAOYSA-N 0.000 claims description 3
- JGHGZXZEGQJZPM-UHFFFAOYSA-N n-[diethylamino(diethyl)silyl]-n-ethylethanamine Chemical compound CCN(CC)[Si](CC)(CC)N(CC)CC JGHGZXZEGQJZPM-UHFFFAOYSA-N 0.000 claims description 3
- XIFOKLGEKUNZTI-UHFFFAOYSA-N n-[diethylamino(dimethyl)silyl]-n-ethylethanamine Chemical compound CCN(CC)[Si](C)(C)N(CC)CC XIFOKLGEKUNZTI-UHFFFAOYSA-N 0.000 claims description 3
- XFXQXCWQCXPVSY-UHFFFAOYSA-N n-[dimethyl(propyl)silyl]methanamine Chemical compound CCC[Si](C)(C)NC XFXQXCWQCXPVSY-UHFFFAOYSA-N 0.000 claims description 3
- UNOQITWAUFOMKI-UHFFFAOYSA-N n-[dimethyl-(propan-2-ylamino)silyl]propan-2-amine Chemical compound CC(C)N[Si](C)(C)NC(C)C UNOQITWAUFOMKI-UHFFFAOYSA-N 0.000 claims description 3
- TWQSOHGSGBWNBD-UHFFFAOYSA-N n-[dimethylamino(diethyl)silyl]-n-methylmethanamine Chemical compound CC[Si](CC)(N(C)C)N(C)C TWQSOHGSGBWNBD-UHFFFAOYSA-N 0.000 claims description 3
- QULMGWCCKILBTO-UHFFFAOYSA-N n-[dimethylamino(dimethyl)silyl]-n-methylmethanamine Chemical compound CN(C)[Si](C)(C)N(C)C QULMGWCCKILBTO-UHFFFAOYSA-N 0.000 claims description 3
- VVDUYYVVAPANCT-UHFFFAOYSA-N n-[ethyl(dimethyl)silyl]methanamine Chemical compound CC[Si](C)(C)NC VVDUYYVVAPANCT-UHFFFAOYSA-N 0.000 claims description 3
- WYIWYXHYRLBNCM-UHFFFAOYSA-N n-diethylsilyl-n-ethylethanamine Chemical compound CCN(CC)[SiH](CC)CC WYIWYXHYRLBNCM-UHFFFAOYSA-N 0.000 claims description 3
- WJIJKWCQOIHCCD-UHFFFAOYSA-N n-ethyl-n-triethylsilylethanamine Chemical group CCN(CC)[Si](CC)(CC)CC WJIJKWCQOIHCCD-UHFFFAOYSA-N 0.000 claims description 3
- ZTAJIYKRQQZJJH-UHFFFAOYSA-N n-methyl-n-triethylsilylmethanamine Chemical compound CC[Si](CC)(CC)N(C)C ZTAJIYKRQQZJJH-UHFFFAOYSA-N 0.000 claims description 3
- DEGDGCXMVIKOCV-UHFFFAOYSA-N n-propan-2-yl-n-triethylsilylpropan-2-amine Chemical compound CC[Si](CC)(CC)N(C(C)C)C(C)C DEGDGCXMVIKOCV-UHFFFAOYSA-N 0.000 claims description 3
- GEZQRKBBRMOCSP-UHFFFAOYSA-N n-propan-2-yl-n-trimethylsilylpropan-2-amine Chemical compound CC(C)N(C(C)C)[Si](C)(C)C GEZQRKBBRMOCSP-UHFFFAOYSA-N 0.000 claims description 3
- JAAJZAZGSITFIK-UHFFFAOYSA-N n-triethylsilylmethanamine Chemical compound CC[Si](CC)(CC)NC JAAJZAZGSITFIK-UHFFFAOYSA-N 0.000 claims description 3
- WJBNXEUDLVCWBD-UHFFFAOYSA-N n-trimethylsilylbutan-1-amine Chemical compound CCCCN[Si](C)(C)C WJBNXEUDLVCWBD-UHFFFAOYSA-N 0.000 claims description 3
- DUZKCWBZZYODQJ-UHFFFAOYSA-N n-trimethylsilylmethanamine Chemical compound CN[Si](C)(C)C DUZKCWBZZYODQJ-UHFFFAOYSA-N 0.000 claims description 3
- YSPHIXJPYVFLLJ-UHFFFAOYSA-N n-trimethylsilylpropan-2-amine Chemical compound CC(C)N[Si](C)(C)C YSPHIXJPYVFLLJ-UHFFFAOYSA-N 0.000 claims description 3
- 150000002978 peroxides Chemical class 0.000 claims description 3
- WLADIVUISABQHN-UHFFFAOYSA-N trimethyl(piperidin-1-yl)silane Chemical compound C[Si](C)(C)N1CCCCC1 WLADIVUISABQHN-UHFFFAOYSA-N 0.000 claims description 3
- HDAHNNLOAPEEMC-UHFFFAOYSA-N trimethyl-(2-methylpyrrolidin-1-yl)silane Chemical compound CC1CCCN1[Si](C)(C)C HDAHNNLOAPEEMC-UHFFFAOYSA-N 0.000 claims description 3
- VTHCSXMNKNHJHY-UHFFFAOYSA-N 1h-imidazol-2-yl(trimethyl)silane Chemical compound C[Si](C)(C)C1=NC=CN1 VTHCSXMNKNHJHY-UHFFFAOYSA-N 0.000 claims description 2
- RSIHJDGMBDPTIM-UHFFFAOYSA-N ethoxy(trimethyl)silane Chemical compound CCO[Si](C)(C)C RSIHJDGMBDPTIM-UHFFFAOYSA-N 0.000 claims description 2
- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical compound CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 claims description 2
- FTCHSXVKVGGWCW-UHFFFAOYSA-N trimethyl(1h-pyrrol-2-yl)silane Chemical compound C[Si](C)(C)C1=CC=CN1 FTCHSXVKVGGWCW-UHFFFAOYSA-N 0.000 claims description 2
- UYGIYVFPQLCZME-UHFFFAOYSA-N n-[[ethyl(methyl)amino]-dimethylsilyl]-n-methylethanamine Chemical compound CCN(C)[Si](C)(C)N(C)CC UYGIYVFPQLCZME-UHFFFAOYSA-N 0.000 claims 4
- NJPBWNLIEAHXQX-UHFFFAOYSA-N 1-[amino(dimethyl)silyl]butane Chemical compound CCCC[Si](C)(C)N NJPBWNLIEAHXQX-UHFFFAOYSA-N 0.000 claims 2
- RIHHSSWTFIOKCS-UHFFFAOYSA-N n-triethylsilylpropan-2-amine Chemical compound CC[Si](CC)(CC)NC(C)C RIHHSSWTFIOKCS-UHFFFAOYSA-N 0.000 claims 2
- HGRHAGBQMVTXEU-UHFFFAOYSA-N (2,5-dimethyl-1h-pyrrol-3-yl)-trimethylsilane Chemical compound CC1=CC([Si](C)(C)C)=C(C)N1 HGRHAGBQMVTXEU-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 10
- 239000010408 film Substances 0.000 description 43
- 239000002243 precursor Substances 0.000 description 26
- 125000000217 alkyl group Chemical group 0.000 description 20
- 230000008021 deposition Effects 0.000 description 18
- 239000003054 catalyst Substances 0.000 description 15
- 125000000524 functional group Chemical group 0.000 description 15
- 239000012528 membrane Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 14
- 239000002904 solvent Substances 0.000 description 14
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 12
- 238000005229 chemical vapour deposition Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 150000001875 compounds Chemical class 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 10
- 238000005137 deposition process Methods 0.000 description 9
- 239000011651 chromium Substances 0.000 description 8
- 238000004255 ion exchange chromatography Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 125000003545 alkoxy group Chemical group 0.000 description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-N hydrofluoric acid Substances F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
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- 235000012239 silicon dioxide Nutrition 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 5
- 239000010948 rhodium Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- XGCDBGRZEKYHNV-UHFFFAOYSA-N 1,1-bis(diphenylphosphino)methane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)CP(C=1C=CC=CC=1)C1=CC=CC=C1 XGCDBGRZEKYHNV-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 229910052768 actinide Inorganic materials 0.000 description 4
- 150000001255 actinides Chemical class 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910052740 iodine Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052747 lanthanoid Inorganic materials 0.000 description 4
- 150000002602 lanthanoids Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 229910052707 ruthenium Inorganic materials 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 125000001424 substituent group Chemical group 0.000 description 4
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Images
Classifications
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Abstract
Description
本出願は、2018年10月4日に提出された米国仮特許出願第62/741126号に基づく優先権を主張していて、その全体は参照によって本明細書に組み込まれる。
R1R2 mSi(NR3R4)n (I)
によって表される構造を有し、式中、R1、R2及びR3が、直鎖又は分岐鎖のC1~C10アルキル基及びC6~C10アリール基からそれぞれ独立に選択され、R4が、水素、直鎖又は分岐鎖のC1~C10アルキル基、C6~C10アリール基及びC3~C10アルキルシリル基から選択され、mが0~2であり、nが1~3であり、m+n=3である少なくとも1つのケイ素前駆体を反応器中に導入する工程;c.パージガスを用いて反応器をパージする工程;d.酸素源を反応器中に導入する工程;並びにe.パージガスを用いて反応器をパージする工程を含み、工程b~eが、所望の厚さの酸化ケイ素が堆積されるまで繰り返され、600~800℃の1つ又は複数の温度で、かつ50ミリTorr(mT)~760Torrの1つ又は複数の圧力で行われるプロセスが開示される。
R1R2 mSi(NR3R4)n (I)
によって表される構造を有し、式中、R1、R2及びR3が、直鎖又は分岐鎖のC1~C10アルキル基及びC6~C10アリール基からそれぞれ独立に選択され、R4が、水素、直鎖又は分岐鎖のC1~C10アルキル基、C6~C10アリール基及びC3~C10アルキルシリル基から選択され、mが0~2であり、nが1~3であり、m+n=3である少なくとも1つのケイ素前駆体を反応器中に導入する工程;c.パージガスを用いて反応器をパージする工程;d.酸素源を反応器中に導入する工程;e.パージガスを用いて反応器をパージする工程;f.水蒸気又はOH源を反応器中に導入する工程;並びにg.パージガスを用いて反応器をパージする工程を含み、工程b~gが、所望の厚さが堆積されるまで繰り返され、プロセス温度が600~800℃であり、反応器中の圧力が50mT~760Torrであるプロセスが開示される。
a.基材を反応器中に提供する工程;
b.ケイ素前駆体を反応器中に導入する工程;
c.パージガスを用いて反応器をパージする工程;
d.酸素源を反応器中に導入する工程;及び
e.パージガスを用いて反応器をパージする工程
を含む。このような先行技術のプロセスにおいて、工程b~eは、所望の厚さの膜が堆積されるまで繰り返される。
R1R2 mSi(NR3R4)n (I)
有し、式中、R1、R2及びR3が、直鎖又は分岐鎖のC1~C10アルキル基及びC6~C10アリール基からそれぞれ独立に選択され、R4が、水素、直鎖又は分岐鎖のC1~C10アルキル基、C6~C10アリール基及びC3~C10アルキルシリル基から選択され、R3とR4とが、環式環構造を形成するように連結されているか、又はR3とR4とが、環式環構造を形成するように連結されておらず、mが0~2であり、nが1~3であり、m+n=3である化合物であり、ケイ素前駆体は、ハライド化合物、金属イオン、金属及びそれらの組み合わせからなる群から選択される1つ又は複数の不純物を実質的に有しない。
a.基材を反応器中に提供する工程;
b.式Iを有する、本明細書において説明される少なくとも1つのケイ素前駆体を反応器中に導入する工程;
c.パージガスを用いて反応器をパージする工程;
d.酸素源を反応器中に導入する工程;及び
e.パージガスを用いて反応器をパージする工程
を含み、工程b~eは、所望の厚さの酸化ケイ素膜が堆積されるまで繰り返される。
a.基材を反応器中に提供する工程;
b.式Iの1つのケイ素前駆体を反応器中に導入する工程:
c.パージガスを用いて反応器をパージする工程:
d.酸素源を反応器中に導入する工程:
e.パージガスを用いて反応器をパージする工程;
f.水蒸気又は他のヒドロキシル源を反応器中に導入する工程:及び
g.パージガスを用いて反応器をパージする工程
から構成され、工程b~gは、所望の厚さが堆積されるまで繰り返される。
a.基材を反応器中に提供する工程;
b.式Iの1つのケイ素前駆体を反応器中に導入する工程;
c.パージガスを用いて反応器をパージする工程;
d.酸素源を反応器中に導入する工程;
e.パージガスを用いて反応器をパージする工程;
f.水蒸気又はOH源を反応器中に導入する工程;及び
g.パージガスを用いて反応器をパージする工程
から構成され、工程b~iは、所望の厚さが堆積されるまで繰り返される。
a.基材を反応器中に提供する工程;
b.式Iの1つのケイ素前駆体を反応器中に導入する工程;
c.パージガスを用いて反応器をパージする工程;
d.オゾン、過酸化水素又は酸素プラズマを反応器中に導入する工程;及び
e.パージガスを用いて反応器をパージする工程
の通りであり、工程b~eは、所望の膜厚が堆積されるまで繰り返される。
酸化ケイ素膜の原子層堆積を、以下の前駆体:ジメチルアミノトリメチルシラン(DMATMS)を使用して行った。実験室スケールのALD処理ツールにおいて堆積を行った。蒸気引き抜きによって、ケイ素前駆体をチャンバーに輸送した。堆積区域に入れる前に、全てのガス(例えばパージガス及び反応体ガス又は前駆体及び酸素源)を100℃に予熱した。ガス及び前駆体の流速を、ALDダイヤフラムバルブを用いて高速作動で制御した。堆積において使用される基材は、12インチ長さのケイ素ストリップであった。熱電対をサンプルホルダーに取り付けて基材温度を確認した。オゾンを酸素源ガスとして使用して堆積を行った。堆積パラメータを表Iに提供する。
表I:DMATMSを使用する、オゾンを用いた酸化ケイ素膜の原子層堆積のためのプロセス
それぞれ650℃及び700℃で、2ppmの塩化物不純物を有するジメチルアミノトリメチルシランを用いて、酸化ケイ素膜を堆積した。図2は、特に700℃で堆積された酸化ケイ素膜について、より高い絶縁破壊電圧及び低い漏洩電流を示す漏洩電流曲線を表す。700℃の膜の漏洩電流は、2MV/cmで1.0×10-9A/cm2より小さく、4MV/cmで1.0×10-9A/cm2より小さく、6MV/cmで1.0×10-8A/cm2より小さい。
Claims (23)
- 酸化ケイ素膜を基材に堆積するためのプロセスであって、
a.基材を反応器中に提供する工程;
b.式I:
R1R2 mSi(NR3R4)n (I)
によって表される構造を有し、式中、R1、R2及びR3が、直鎖又は分岐鎖のC1~C10アルキル基及びC6~C10アリール基からそれぞれ独立に選択され;R4が、水素、直鎖又は分岐鎖のC1~C10アルキル基、C6~C10アリール基及びC3~C10アルキルシリル基から選択され;mが0~2であり;nが1~3であり、m+n=3であり、ハライド、金属及びそれらの組み合わせからなる群から選択される1つ又は複数の不純物を実質的に有しない少なくとも1つのケイ素前駆体を前記反応器中に導入する工程;
c.パージガスを用いて前記反応器をパージする工程;
d.酸素源を前記反応器中に導入する工程;並びに
e.パージガスを用いて前記反応器をパージする工程
を含み、工程b~eが、所望の厚さの酸化ケイ素が堆積されるまで繰り返され、600~800℃の1つ又は複数の温度で、かつ50ミリTorr(mT)~760Torrの1つ又は複数の圧力で行われるプロセス。 - R3とR4とが連結されて環式環構造を形成している、請求項1に記載のプロセス。
- 前記少なくとも1つのケイ素前駆体が、ジエチルアミノトリエチルシラン、ジメチルアミノトリエチルシラン、エチルメチルアミノトリエチルシラン、t-ブチルアミノトリエチルシラン、イソ-プロピルアミノトリエチルシラン、ジ-イソプロピルアミノトリエチルシラン、ピロリドノトリエチルシラン、ジエチルアミノトリメチルシラン、ジメチルアミノトリメチルシラン、エチルメチルアミノトリメチルシラン、t-ブチルアミノトリメチルシラン、イソ-プロピルアミノトリメチルシラン、ジ-イソプロピルアミノトリメチルシラン、ピロリドノトリメチルシラン、ジエチルアミノジメチルシラン、ジメチルアミノジメチルシラン、エチルメチルアミノジメチルシラン、t-ブチルアミノジメチルシラン、イソ-プロピルアミノジメチルシラン、ジ-イソプロピルアミノジメチルシラン、ピロリジノジメチルシラン、ジエチルアミノジエチルシラン、ジメチルアミノジエチルシラン、エチルメチルアミノジエチルシラン、t-ブチルアミノジエチルシラン、イソ-プロピルアミノジエチルシラン、ジ-イソプロピルアミノジエチルシラン、ピロリドノジエチルシラン、ビス(ジエチルアミノ)ジメチルシラン、ビス(ジメチルアミノ)ジメチルシラン、ビス(ジメチルアミノ)メチルシラン、ビス(エチルメチルアミノ)ジメチルシラン、ビス(ジ-イソプロピルアミノ)ジメチルシラン、ビス(イソ-プロピルアミノ)ジメチルシラン、ビス(tert-ブチルアミノ)ジメチルシラン、ビス(ジメチルアミノ)メチルシラン、ビス(エチルメチルアミノ)ジメチルシラン、ジピロリジノジメチルシラン、ビス(ジエチルアミノ)ジエチルシラン、ビス(ジメチルアミノ)ジエチルシラン、ビス(エチルメチルアミノ)ジエチルシラン、ビス(ジ-イソプロピルアミノ)ジエチルシラン、ビス(イソ-プロピルアミノ)ジエチルシラン、ビス(tert-ブチルアミノ)ジエチルシラン、ジピロリジノジエチルシラン、ビス(ジエチルアミノ)メチルビニルシラン、ビス(ジメチルアミノ)メチルビニルシラン、ビス(エチルメチルアミノ)メチルビニルシラン、ビス(ジ-イソプロピルアミノ)メチルビニルシラン、ビス(イソ-プロピルアミノ)メチルビニルシラン、ビス(tert-ブチルアミノ)メチルビニルシラン、ジピロリジノメチルビニルシラン、2,6-ジメチルピペリジノメチルシラン、2,6-ジメチルピペリジノジメチルシラン、2,6-ジメチルピペリジノトリメチルシラン、トリス(ジメチルアミノ)フェニルシラン、トリス(ジメチルアミノ)メチルシラン、トリス(ジメチルアミノ)エチルシラン、メチルアミノトリメチルシラン、n-プロピルアミノトリメチルシラン、イソ-ブチルアミノトリメチルシラン、n-ブチルアミノトリメチルシラン、シクロヘキサミノトリメチルシラン、2-メチルピロリジノトリメチルシラン、2,5-ジメチルピロリジノトリメチルシラン、ピペリジノトリメチルシラン、1-メチルピペラジノトリメチルシラン、ピロリルトリメチルシラン、2,5-ジメチルピロリルトリメチルシラン、イミダゾリルトリメチルシラン、メトキシトリメチルシラン、エトキシトリメチルシラン及びそれらの混合物からなる群から選択される、請求項1に記載のプロセス。
- 前記ケイ素前駆体中の前記ハライドが、存在する場合には、塩化物イオンを含む、請求項3に記載のプロセス。
- 前記塩化物イオンが、存在する場合には、ICによって測定した場合に50ppm以下の濃度で存在する、請求項4に記載のケイ素前駆体。
- 前記塩化物イオンが、存在する場合には、ICによって測定した場合に10ppm以下の濃度で存在する、請求項4に記載のケイ素前駆体。
- 前記塩化物イオンが、存在する場合には、ICによって測定した場合に5ppm以下の濃度で存在する、請求項4に記載のケイ素前駆体。
- 前記パージガスが、窒素、ヘリウム及びアルゴンからなる群から選択される、請求項1に記載のプロセス。
- 前記酸素源が、酸素、過酸化物、酸素プラズマ、酸素/水素、酸素/水、水蒸気、水蒸気プラズマ、過酸化水素、オゾン源及びそれらの組み合わせからなる群から選択される、請求項1に記載のプロセス。
- 工程eの後に、以下の工程f及びg:
f.水蒸気又はヒドロキシル源を前記反応器中に導入する工程;及び
g.パージガスを用いて前記反応器をパージする工程
をさらに含む、請求項1に記載のプロセス。 - 酸化ケイ素膜を堆積するためのプロセスであって、
a.基材を反応器中に提供する工程;
b.式I:
R1R2 mSi(NR3R4)n (I)
によって表される構造を有し、式中、R1、R2及びR3が、直鎖又は分岐鎖のC1~C10アルキル基及びC6~C10アリール基からそれぞれ独立に選択され;R4が、水素、直鎖又は分岐鎖のC1~C10アルキル基、C6~C10アリール基及びC3~C10アルキルシリル基から選択され;mが0~2であり;nが1~3であり、m+n=3であり、ハライド、金属及びそれらの組み合わせからなる群から選択される1つ又は複数の不純物を実質的に有しない少なくとも1つのケイ素前駆体を前記反応器中に導入する工程;
c.パージガスを用いて前記反応器をパージする工程;
d.酸素源を前記反応器中に導入する工程;
e.パージガスを用いて前記反応器をパージする工程;
f.水蒸気又はOH源を前記反応器中に導入する工程;並びに
g.パージガスを用いて前記反応器をパージする工程
を含み、工程b~gが、所望の厚さが堆積されるまで繰り返され、プロセス温度が600~800℃であり、前記反応器中の圧力が50ミリTorr(mT)~760Torrであるプロセス。 - R3とR4とが連結されて環式環構造を形成している、請求項11に記載のプロセス。
- 前記少なくとも1つのケイ素前駆体が、ジエチルアミノトリエチルシラン、ジメチルアミノトリエチルシラン、エチルメチルアミノトリエチルシラン、t-ブチルアミノトリエチルシラン、イソ-プロピルアミノトリエチルシラン、ジ-イソプロピルアミノトリエチルシラン、ピロリドノトリエチルシラン、ジエチルアミノトリメチルシラン、ジメチルアミノトリメチルシラン、エチルメチルアミノトリメチルシラン、t-ブチルアミノトリメチルシラン、イソ-プロピルアミノトリメチルシラン、ジ-イソプロピルアミノトリメチルシラン、ピロリドノトリメチルシラン、ジエチルアミノジメチルシラン、ジメチルアミノジメチルシラン、エチルメチルアミノジメチルシラン、t-ブチルアミノジメチルシラン、イソ-プロピルアミノジメチルシラン、ジ-イソプロピルアミノジメチルシラン、ピロリジノジメチルシラン、ジエチルアミノジエチルシラン、ジメチルアミノジエチルシラン、エチルメチルアミノジエチルシラン、t-ブチルアミノジエチルシラン、イソ-プロピルアミノジエチルシラン、ジ-イソプロピルアミノジエチルシラン、ピロリドノジエチルシラン、ビス(ジエチルアミノ)ジメチルシラン、ビス(ジメチルアミノ)ジメチルシラン、ビス(ジメチルアミノ)メチルシラン、ビス(エチルメチルアミノ)ジメチルシラン、ビス(ジ-イソプロピルアミノ)ジメチルシラン、ビス(イソ-プロピルアミノ)ジメチルシラン、ビス(tert-ブチルアミノ)ジメチルシラン、ビス(ジメチルアミノ)メチルシラン、ビス(エチルメチルアミノ)ジメチルシラン、ジピロリジノジメチルシラン、ビス(ジエチルアミノ)ジエチルシラン、ビス(ジメチルアミノ)ジエチルシラン、ビス(エチルメチルアミノ)ジエチルシラン、ビス(ジ-イソプロピルアミノ)ジエチルシラン、ビス(イソ-プロピルアミノ)ジエチルシラン、ビス(tert-ブチルアミノ)ジエチルシラン、ジピロリジノジエチルシラン、ビス(ジエチルアミノ)メチルビニルシラン、ビス(ジメチルアミノ)メチルビニルシラン、ビス(エチルメチルアミノ)メチルビニルシラン、ビス(ジ-イソプロピルアミノ)メチルビニルシラン、ビス(イソ-プロピルアミノ)メチルビニルシラン、ビス(tert-ブチルアミノ)メチルビニルシラン、ジピロリジノメチルビニルシラン、2,6-ジメチルピペリジノメチルシラン、2,6-ジメチルピペリジノジメチルシラン、2,6-ジメチルピペリジノトリメチルシラン、トリス(ジメチルアミノ)フェニルシラン、トリス(ジメチルアミノ)メチルシラン、トリス(ジメチルアミノ)エチルシラン、メチルアミノトリメチルシラン、n-プロピルアミノトリメチルシラン、イソ-ブチルアミノトリメチルシラン、n-ブチルアミノトリメチルシラン、シクロヘキサミノトリメチルシラン、2-メチルピロリジノトリメチルシラン、2,5-ジメチルピロリジノトリメチルシラン、ピペリジノトリメチルシラン、1-メチルピペラジノトリメチルシラン、ピロリルトリメチルシラン、2,5-ジメチルピロリルトリメチルシラン、イミダゾリルトリメチルシラン、メトキシトリメチルシラン、エトキシトリメチルシラン及びそれらの混合物からなる群から選択される、請求項11に記載のプロセス。
- 前記ケイ素前駆体中の前記ハライドが、存在する場合には、塩化物イオンを含む、請求項13に記載のプロセス。
- 前記塩化物イオンが、存在する場合には、ICによって測定した場合に50ppm以下の濃度で存在する、請求項14に記載のケイ素前駆体。
- 前記塩化物イオンが、存在する場合には、ICによって測定した場合に10ppm以下の濃度で存在する、請求項14に記載のケイ素前駆体。
- 前記塩化物イオンが、存在する場合には、ICによって測定した場合に5ppm以下の濃度で存在する、請求項14に記載のケイ素前駆体。
- 前記パージガスが、窒素、ヘリウム及びアルゴンからなる群から選択される、請求項11に記載のプロセス。
- 前記酸素源が、酸素、過酸化物、酸素プラズマ、水蒸気、水蒸気プラズマ、過酸化水素及びオゾン源からなる群から選択される、請求項11に記載のプロセス。
- 請求項1によって製造される酸化ケイ素膜。
- 請求項11によって製造される酸化ケイ素膜。
- 2MV/cmで1.0×10-9A/cm2以下、4MV/cmで1.0×10-9A/cm2以下、又は6MV/cmで1.0×10-8A/cm2以下の漏洩電流を有する、請求項20に記載の酸化ケイ素膜。
- 2MV/cmで1.0×10-9A/cm2以下、4MV/cmで1.0×10-9A/cm2以下、又は6MV/cmで1.0×10-8A/cm2以下の漏洩電流を有する、請求項21に記載の酸化ケイ素膜。
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