KR102653042B1 - 몰리브데늄 전구체 화합물, 이의 제조방법, 및 이를 이용한 몰리브데늄-함유 막의 증착 방법 - Google Patents
몰리브데늄 전구체 화합물, 이의 제조방법, 및 이를 이용한 몰리브데늄-함유 막의 증착 방법 Download PDFInfo
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- 239000011733 molybdenum Substances 0.000 title claims abstract description 288
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 288
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims abstract description 285
- 150000001875 compounds Chemical class 0.000 title claims abstract description 157
- 239000002243 precursor Substances 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims abstract description 64
- 239000000758 substrate Substances 0.000 claims abstract description 56
- 238000000151 deposition Methods 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 239000012528 membrane Substances 0.000 claims abstract description 6
- 150000004767 nitrides Chemical class 0.000 claims description 50
- 238000000231 atomic layer deposition Methods 0.000 claims description 30
- 239000001257 hydrogen Substances 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 20
- 238000005229 chemical vapour deposition Methods 0.000 claims description 16
- 230000008021 deposition Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 238000002411 thermogravimetry Methods 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 7
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 144
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 66
- 229910021529 ammonia Inorganic materials 0.000 description 33
- 239000007789 gas Substances 0.000 description 28
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- 239000000126 substance Substances 0.000 description 16
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 12
- 229910052786 argon Inorganic materials 0.000 description 11
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 229910052814 silicon oxide Inorganic materials 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 238000010926 purge Methods 0.000 description 8
- 238000005160 1H NMR spectroscopy Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 150000002431 hydrogen Chemical class 0.000 description 7
- DWPKMPZFZNWNTN-UHFFFAOYSA-N molybdenum;toluene Chemical compound [Mo].CC1=CC=CC=C1.CC1=CC=CC=C1 DWPKMPZFZNWNTN-UHFFFAOYSA-N 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 6
- 239000012495 reaction gas Substances 0.000 description 6
- -1 4,4-dimethylpentyl group Chemical group 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- CSUGEZSVJBCZPE-UHFFFAOYSA-N [Mo].CCC1=CC=CC=C1CC Chemical compound [Mo].CCC1=CC=CC=C1CC CSUGEZSVJBCZPE-UHFFFAOYSA-N 0.000 description 4
- 230000005587 bubbling Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- RMKJTYPFCFNTGQ-UHFFFAOYSA-N 1,3-dimethyl-5-propan-2-ylbenzene Chemical compound CC(C)C1=CC(C)=CC(C)=C1 RMKJTYPFCFNTGQ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- HFPZCAJZSCWRBC-UHFFFAOYSA-N p-cymene Chemical compound CC(C)C1=CC=C(C)C=C1 HFPZCAJZSCWRBC-UHFFFAOYSA-N 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000012916 structural analysis Methods 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 1
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 description 1
- SZURZHQMGVKJLV-UHFFFAOYSA-N 1,2-ditert-butylbenzene Chemical compound CC(C)(C)C1=CC=CC=C1C(C)(C)C SZURZHQMGVKJLV-UHFFFAOYSA-N 0.000 description 1
- OOWNNCMFKFBNOF-UHFFFAOYSA-N 1,4-ditert-butylbenzene Chemical compound CC(C)(C)C1=CC=C(C(C)(C)C)C=C1 OOWNNCMFKFBNOF-UHFFFAOYSA-N 0.000 description 1
- 125000000882 C2-C6 alkenyl group Chemical group 0.000 description 1
- 125000003601 C2-C6 alkynyl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000002716 delivery method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- DSNHSQKRULAAEI-UHFFFAOYSA-N para-diethylbenzene Natural products CCC1=CC=C(CC)C=C1 DSNHSQKRULAAEI-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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- C07F17/00—Metallocenes
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
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Abstract
Description
도 2는 본원의 실시예 1과 3, 및 비교예 1의 몰리브데늄 전구체 화합물들의 열중량 분석(TGA) 측정에 대한 결과 그래프이다.
도 3은 본원의 실시예 1에서 제조된 몰리브데늄 전구체 화합물과 암모니아(NH3)를 사용하여 ALD 방법으로 형성된 몰리브데늄-함유 질화막의 온도에 따른 투과전자현미경(TEM, transmission electron microscope) 사진이다.
도 4는 본원의 실시예 1에 따라 제조된 몰리브데늄 전구체 화합물과 암모니아(NH3)를 사용하여 ALD 방법으로 형성된 몰리브데늄-함유 질화막의 온도에 따른 비저항 값을 나타낸 그래프이다.
도 5는 본원의 실시예 1에 따라 제조된 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용하여 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 온도에 따른 TEM 사진이다.
도 6은 본원의 실시예 1에 따라 제조된 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용하여 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 온도에 따른 증착률과 비저항 값을 나타낸 그래프이다.
도 7은 본원의 실시예 1에 따라 제조된 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용하여 350℃에서 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 원소의 함유율(%)을 AES(Auger Electron Spectroscopy)로 측정하여 나타낸 그래프이다.
도 8은 본원의 실시예 1에 따라 제조된 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용하여 400℃에서 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 원소의 함유율(%)을 AES로 측정하여 나타낸 그래프이다.
도 9는 본원의 실시예 1에 따라 제조된 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용하여 450℃에서 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 원소의 함유율(%)을 AES로 측정하여 나타낸 그래프이다.
도 10은 비교예 2의 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용한 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 온도에 따른 TEM 사진이다.
도 11은 비교예 2의 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용하여 350℃에서 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 원소의 함유율(%)을 AES로 측정하여 나타낸 그래프이다.
도 12는 비교예 2의 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용하여 400℃에서 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 원소의 함유율(%)을 AES로 측정하여 나타낸 그래프이다.
도 13은 비교예 2의 몰리브데늄 전구체 화합물과 암모니아(NH3) 플라즈마를 사용하여 450℃에서 PEALD 방법으로 형성된 몰리브데늄-함유 질화막의 원소의 함유율(%)을 AES로 측정하여 나타낸 그래프이다.
Claims (13)
- 삭제
- 삭제
- 제 1 항에 있어서,
상기 몰리브데늄 전구체 화합물은 열중량 분석(TGA)을 이용하여, 10℃/분의 승온 속도로 상온에서 500℃까지 승온시키면서 상기 몰리브데늄 전구체 화합물의 무게 중량 감소 50%일 때의 온도인 TG50(℃)이 180℃ 내지 350℃인, 몰리브데늄 전구체 화합물.
- 제 4 항에 있어서,
상기 몰리브데늄 전구체 화합물은 하기 식 1의 무게 잔존율(WR500)이 70% 이상인, 몰리브데늄 전구체 화합물:
[식 1] 무게 잔존율(WR500, %) = × 100
상기 식 1에서,
W25는 25℃에서 몰리브데늄 전구체 화합물의 초기 중량에 해당하는 백분율(100 wt%)이고,
W500은 상기 초기 중량 대비, 25℃에서 500℃의 온도로 10℃/분의 승온 속도로 승온하여 500℃에서의 몰리브데늄 전구체 화합물의 중량의 백분율(wt%)이다.
- 하기 화학식 1로 표시되는 몰리브데늄 전구체 화합물을 포함하는, 몰리브데늄-함유 막 형성용 조성물:
[화학식 1]
상기 화학식 1에서,
R1 내지 R6는 각각 독립적으로 수소, 및 선형 또는 분지형의 C1-C8 알킬기로 구성된 군으로부터 선택되고,
단, R1 내지 R6 중 둘 이상은 수소가 아니다.
- 제 6 항에 있어서,
상기 몰리브데늄 전구체 화합물이 액체인, 몰리브데늄-함유 막 형성용 조성물.
- 하기 화학식 1로 표시되는 몰리브데늄 전구체 화합물을 이용하여 형성된, 몰리브데늄-함유 막:
[화학식 1]
상기 화학식 1에서,
R1 내지 R6는 각각 독립적으로 수소, 및 선형 또는 분지형의 C1-C8 알킬기로 구성된 군으로부터 선택되고,
단, R1 내지 R6 중 둘 이상은 수소가 아니다.
- 제 9 항에 있어서,
상기 몰리브데늄-함유 막은 1,200 μΩ·cm 이하의 비저항을 갖는, 몰리브데늄-함유 막.
- 제 9 항에 있어서,
상기 몰리브데늄-함유 막은 몰리브데늄-함유 금속막, 몰리브데늄-함유 산화막, 몰리브데늄-함유 탄화막, 몰리브데늄-함유 황화막, 및 몰리브데늄-함유 질화막으로 이루어진 군으로부터 선택된 하나 이상인, 몰리브데늄-함유 막.
- 하기 화학식 1로 표시되는 몰리브데늄 전구체 화합물을 이용하여 기재 상에 몰리브데늄-함유 막을 증착하는 단계를 포함하는, 몰리브데늄-함유 막의 증착 방법:
[화학식 1]
상기 화학식 1에서,
R1 내지 R6는 각각 독립적으로 수소, 및 선형 또는 분지형의 C1-C8 알킬기로 구성된 군으로부터 선택되고,
단, R1 내지 R6 중 둘 이상은 수소가 아니다.
- 제 12 항에 있어서,
상기 증착은 300℃ 내지 550℃의 온도에서 화학기상 증착법(Chemical Vapor Deposition, CVD) 또는 원자층 증착법(Atomic Layer Deposition, ALD)에 의해 수행되는, 몰리브데늄-함유 막의 증착 방법.
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