JP7130962B2 - 成膜方法及び成膜装置 - Google Patents
成膜方法及び成膜装置 Download PDFInfo
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- JP7130962B2 JP7130962B2 JP2018002839A JP2018002839A JP7130962B2 JP 7130962 B2 JP7130962 B2 JP 7130962B2 JP 2018002839 A JP2018002839 A JP 2018002839A JP 2018002839 A JP2018002839 A JP 2018002839A JP 7130962 B2 JP7130962 B2 JP 7130962B2
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- substrate
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- mist
- film forming
- annealing
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- 238000000034 method Methods 0.000 title claims description 122
- 239000000758 substrate Substances 0.000 claims description 183
- 239000003595 mist Substances 0.000 claims description 109
- 238000000137 annealing Methods 0.000 claims description 76
- 239000007789 gas Substances 0.000 claims description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 27
- 239000001301 oxygen Substances 0.000 claims description 27
- 229910052760 oxygen Inorganic materials 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000013078 crystal Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 38
- 239000012159 carrier gas Substances 0.000 description 29
- 239000003085 diluting agent Substances 0.000 description 26
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 21
- 229910001195 gallium oxide Inorganic materials 0.000 description 20
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 18
- 229910001882 dioxygen Inorganic materials 0.000 description 18
- 239000000243 solution Substances 0.000 description 17
- 230000007547 defect Effects 0.000 description 13
- 125000004429 atom Chemical group 0.000 description 10
- 238000005229 chemical vapour deposition Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 229910001873 dinitrogen Inorganic materials 0.000 description 8
- 125000004430 oxygen atom Chemical group O* 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- UPWPDUACHOATKO-UHFFFAOYSA-K gallium trichloride Chemical compound Cl[Ga](Cl)Cl UPWPDUACHOATKO-UHFFFAOYSA-K 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- ZVYYAYJIGYODSD-LNTINUHCSA-K (z)-4-bis[[(z)-4-oxopent-2-en-2-yl]oxy]gallanyloxypent-3-en-2-one Chemical compound [Ga+3].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O ZVYYAYJIGYODSD-LNTINUHCSA-K 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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Description
12 :炉
13 :基板ステージ
14 :ヒータ
20 :ミスト供給装置
22 :容器
24 :超音波振動子
26 :ミスト供給路
28 :搬送ガス導入路
30 :希釈ガス導入路
60 :原料溶液
62 :ミスト
64 :搬送ガス
66 :希釈ガス
70 :基板
80 :排出管
90 :制御装置
Claims (10)
- 酸化物材料によって構成された基板上に膜を形成する成膜方法であって、
前記基板をアニールする工程と、
前記アニール後に、前記基板を前記アニール時の前記基板の温度よりも低い温度に加熱しながら、前記膜の原料溶液のミストを前記基板の表面に供給する工程、
を有する成膜方法。 - 前記アニールを、酸素を含むガス中に前記基板を配置した状態で実施する、
請求項1の成膜方法。 - 前記アニールを、大気よりも酸素分圧が高いガス中に前記基板を配置した状態で実施する、請求項2の成膜方法。
- 前記アニールを、水のミストと水蒸気の少なくとも一方を含むガス中に前記基板を配置した状態で実施する、請求項1~3のいずれか一項の成膜方法。
- 前記アニールを、流動するガス中に前記基板を配置した状態で実施する、請求項1~4のいずれか一項の成膜方法。
- 前記アニールと、前記原料溶液の前記ミストの前記基板の前記表面への供給を、共通の炉内で実施する、請求項1~5のいずれか一項の成膜方法。
- 前記アニールにおいて、前記基板を500℃以上の温度に加熱する、請求項1~6のいずれか一項の成膜方法。
- 前記膜が、酸化物半導体の結晶膜である請求項1~7のいずれか一項の成膜方法。
- 半導体装置の製造方法であって、請求項1~8のいずれか一項の成膜方法によって前記膜を形成する工程を備える、製造方法。
- 酸化物材料によって構成された基板上に膜を形成する成膜装置であって、
前記基板が配置される炉と、
前記炉内で前記基板を加熱するヒータと、
前記膜の原料溶液のミストを、前記炉内に供給するミスト供給装置と、
前記ヒータと前記ミスト供給装置とを制御する制御装置、
を備え、
前記制御装置が、
前記基板を前記ヒータによってアニールするステップと、
前記アニール後に、前記基板を前記アニール時の前記基板の温度よりも低い温度に前記ヒータによって加熱しながら、前記ミスト供給装置によって前記ミストを前記基板の表面に供給するステップ、
を実行する成膜装置。
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