JP6749516B1 - 酸化ケイ素薄膜の選択的横成長 - Google Patents
酸化ケイ素薄膜の選択的横成長 Download PDFInfo
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- JP6749516B1 JP6749516B1 JP2020092855A JP2020092855A JP6749516B1 JP 6749516 B1 JP6749516 B1 JP 6749516B1 JP 2020092855 A JP2020092855 A JP 2020092855A JP 2020092855 A JP2020092855 A JP 2020092855A JP 6749516 B1 JP6749516 B1 JP 6749516B1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052814 silicon oxide Inorganic materials 0.000 title claims abstract description 32
- 239000010409 thin film Substances 0.000 title 1
- 239000000758 substrate Substances 0.000 claims abstract description 148
- 238000000034 method Methods 0.000 claims abstract description 46
- 239000003054 catalyst Substances 0.000 claims description 40
- 238000012545 processing Methods 0.000 claims description 39
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052734 helium Inorganic materials 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- ORJFXWYTRPGGRK-UHFFFAOYSA-N hydroxy-tris(2-methylbutan-2-yloxy)silane Chemical compound CCC(C)(C)O[Si](O)(OC(C)(C)CC)OC(C)(C)CC ORJFXWYTRPGGRK-UHFFFAOYSA-N 0.000 claims description 3
- HLDBBQREZCVBMA-UHFFFAOYSA-N hydroxy-tris[(2-methylpropan-2-yl)oxy]silane Chemical compound CC(C)(C)O[Si](O)(OC(C)(C)C)OC(C)(C)C HLDBBQREZCVBMA-UHFFFAOYSA-N 0.000 claims description 3
- MPDDJZWTHNHXHD-UHFFFAOYSA-N C[Zn](C)(C)C Chemical compound C[Zn](C)(C)C MPDDJZWTHNHXHD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 9
- JGALSKCCWGCHHM-UHFFFAOYSA-N [Ti]C Chemical compound [Ti]C JGALSKCCWGCHHM-UHFFFAOYSA-N 0.000 claims 1
- 230000009849 deactivation Effects 0.000 claims 1
- 238000006884 silylation reaction Methods 0.000 abstract description 27
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 15
- 229910052710 silicon Inorganic materials 0.000 abstract description 15
- 239000010703 silicon Substances 0.000 abstract description 15
- 239000002841 Lewis acid Substances 0.000 abstract description 11
- 150000007517 lewis acids Chemical class 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 abstract description 5
- 238000009832 plasma treatment Methods 0.000 abstract description 5
- 238000007654 immersion Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 69
- 239000007789 gas Substances 0.000 description 21
- 238000000151 deposition Methods 0.000 description 19
- 230000015572 biosynthetic process Effects 0.000 description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 230000008021 deposition Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- POFFJVRXOKDESI-UHFFFAOYSA-N 1,3,5,7-tetraoxa-4-silaspiro[3.3]heptane-2,6-dione Chemical compound O1C(=O)O[Si]21OC(=O)O2 POFFJVRXOKDESI-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910003849 O-Si Inorganic materials 0.000 description 2
- 229910003872 O—Si Inorganic materials 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- -1 AlCl 3 Chemical class 0.000 description 1
- UHBKEKFHZYFRRU-UHFFFAOYSA-N C[Ti](C)(C)C Chemical compound C[Ti](C)(C)C UHBKEKFHZYFRRU-UHFFFAOYSA-N 0.000 description 1
- 229910008051 Si-OH Inorganic materials 0.000 description 1
- 229910006358 Si—OH Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- QULMGWCCKILBTO-UHFFFAOYSA-N n-[dimethylamino(dimethyl)silyl]-n-methylmethanamine Chemical compound CN(C)[Si](C)(C)N(C)C QULMGWCCKILBTO-UHFFFAOYSA-N 0.000 description 1
- KAHVZNKZQFSBFW-UHFFFAOYSA-N n-methyl-n-trimethylsilylmethanamine Chemical compound CN(C)[Si](C)(C)C KAHVZNKZQFSBFW-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- PQDJYEQOELDLCP-UHFFFAOYSA-N trimethylsilane Chemical compound C[SiH](C)C PQDJYEQOELDLCP-UHFFFAOYSA-N 0.000 description 1
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- 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
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
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Abstract
Description
Claims (15)
- 基板を処理する方法であって、
(a)基板上に形成された層の上面及び側壁面上に、トリメチルアルミニウム(TMA)を含む触媒層を共形的に形成することと、
(b)前記基板を触媒不活性化ガスから形成されたプラズマに曝すことであって、前記触媒不活性化ガスは、O2、N2、NH3、H2、H2O、He、Ar、又はこれらの任意の組み合わせを含み、前記基板が前記プラズマに曝されている間、前記触媒不活性化ガスが前記触媒層の側壁面により受容されずに前記触媒層の上面により受容されるように、前記基板がバイアスされる、プラズマに曝すことと、
(c)前記基板上に材料層を形成するために、前記基板をシラノールに曝すことと、
(d)前記材料層の所望の厚さが実現されるまで、(a)から(c)を繰り返すことと
を含む方法。 - 前記シラノールが、一般式Si(OR)3OHを有する化合物であり、R基が炭化水素である、請求項1に記載の方法。
- 前記シラノールが、トリス−(tert−ブトキシ)シラノール、トリス−(tert−ペントキシ)シラノール、又はこれらの誘導体である、請求項2に記載の方法。
- 前記材料層が酸化ケイ素である、請求項1に記載の方法。
- 前記触媒不活性化ガスがO2又はH2Oである、請求項1に記載の方法。
- 前記層が誘電体層である、請求項1に記載の方法。
- 前記材料層が、前記触媒層の前記側壁面上に形成される、請求項1に記載の方法。
- 基板を処理する方法であって、
第1の層と、該第1の層の上に配置された第2の層とを有する、基板を提供することであって、前記第2の層は、前記第1の層の上面の一部を露出させるようにパターニングされており、前記第2の層は、上面及び側壁面を有する、基板を提供することと、
前記第1の層の露出された前記上面、及び前記第2の層の前記上面並びに前記側壁面上に、触媒層を形成することであって、前記触媒層が、トリメチルアルミニウム(TMA)、テトラメチルチタニウム、テトラメチル亜鉛、又はこれらの組み合わせを含む、触媒層を形成することと、
前記基板を触媒不活性化ガスから形成されたプラズマに曝すことであって、前記触媒不活性化ガスは、O2、N2、NH3、H2、H2O、He、Ar、又はこれらの任意の組み合わせを含む、プラズマに曝すこと、且つ、前記基板を前記プラズマに曝している間、前記触媒不活性化ガスが前記第2の層の前記側壁面により受容されずに前記第2の層の前記上面により受容されるように、前記基板をバイアスすることと、
前記基板上に材料層を形成するために、前記基板をシラノールに曝すことと、
前記材料層の予め規定された厚さが実現されるまで、前記第1の層の露出された前記上面、及び前記第2の層の前記上面並びに前記側壁面上に、触媒層を形成することと、前記基板を触媒不活性化ガスから形成されたプラズマに曝すことと、前記基板上に材料層を形成するために、前記基板をシラノールに曝すこととを、繰り返すことと
を含む方法。 - 前記シラノールが、一般式Si(OR)3OHを有する化合物であり、R基が炭化水素である、請求項8に記載の方法。
- 前記シラノールが、トリス−(tert−ブトキシ)シラノール、トリス−(tert−ペントキシ)シラノール、又はこれらの誘導体である、請求項9に記載の方法。
- 前記材料層が酸化ケイ素である、請求項8に記載の方法。
- 前記触媒不活性化ガスがO2又はH2Oである、請求項8に記載の方法。
- 前記材料層が、前記第2の層の前記側壁面上に形成される、請求項8に記載の方法
- 前記第1の層が金属含有層である、請求項8に記載の方法。
- 前記第2の層が誘電体層である、請求項8に記載の方法。
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