WO2022149854A1 - 핵성장 지연을 이용한 영역 선택적 박막 형성 방법 - Google Patents
핵성장 지연을 이용한 영역 선택적 박막 형성 방법 Download PDFInfo
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- WO2022149854A1 WO2022149854A1 PCT/KR2022/000171 KR2022000171W WO2022149854A1 WO 2022149854 A1 WO2022149854 A1 WO 2022149854A1 KR 2022000171 W KR2022000171 W KR 2022000171W WO 2022149854 A1 WO2022149854 A1 WO 2022149854A1
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 239000010409 thin film Substances 0.000 title claims abstract description 41
- 206010053759 Growth retardation Diseases 0.000 title description 2
- 231100000001 growth retardation Toxicity 0.000 title description 2
- 239000002243 precursor Substances 0.000 claims abstract description 39
- 239000007954 growth retardant Substances 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 238000010926 purge Methods 0.000 claims abstract description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 219
- 125000000217 alkyl group Chemical group 0.000 claims description 58
- 229910052751 metal Inorganic materials 0.000 claims description 43
- 239000002184 metal Substances 0.000 claims description 43
- 239000010408 film Substances 0.000 claims description 40
- 125000003277 amino group Chemical group 0.000 claims description 39
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 33
- 125000003118 aryl group Chemical group 0.000 claims description 32
- 229910052710 silicon Inorganic materials 0.000 claims description 27
- 229910052732 germanium Inorganic materials 0.000 claims description 24
- 229910052800 carbon group element Inorganic materials 0.000 claims description 21
- 125000004122 cyclic group Chemical group 0.000 claims description 21
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 18
- 238000000231 atomic layer deposition Methods 0.000 claims description 17
- 125000005264 aryl amine group Chemical group 0.000 claims description 16
- 125000003282 alkyl amino group Chemical group 0.000 claims description 15
- 150000003974 aralkylamines Chemical group 0.000 claims description 15
- IVRMZWNICZWHMI-UHFFFAOYSA-N azide group Chemical group [N-]=[N+]=[N-] IVRMZWNICZWHMI-UHFFFAOYSA-N 0.000 claims description 15
- 125000005265 dialkylamine group Chemical group 0.000 claims description 15
- 229910052736 halogen Inorganic materials 0.000 claims description 15
- 150000002367 halogens Chemical class 0.000 claims description 15
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 15
- 125000000623 heterocyclic group Chemical group 0.000 claims description 13
- 125000005241 heteroarylamino group Chemical group 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 239000000376 reactant Substances 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- 229910052795 boron group element Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 238000005229 chemical vapour deposition Methods 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 229910021480 group 4 element Inorganic materials 0.000 claims description 3
- 229910021478 group 5 element Inorganic materials 0.000 claims description 3
- 229910021476 group 6 element Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 150000002894 organic compounds Chemical group 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical group [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims 3
- 125000005842 heteroatom Chemical group 0.000 claims 2
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000006227 byproduct Substances 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 8
- 230000006911 nucleation Effects 0.000 description 6
- 238000010899 nucleation Methods 0.000 description 6
- 239000012686 silicon precursor Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 101000735417 Homo sapiens Protein PAPPAS Proteins 0.000 description 3
- 102100034919 Protein PAPPAS Human genes 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- -1 4,4-dimethylpentyl group Chemical group 0.000 description 2
- BIVNKSDKIFWKFA-UHFFFAOYSA-N N-propan-2-yl-N-silylpropan-2-amine Chemical compound CC(C)N([SiH3])C(C)C BIVNKSDKIFWKFA-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 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
- 238000010586 diagram Methods 0.000 description 1
- 125000003438 dodecyl 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])C([H])([H])C([H])([H])* 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 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
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 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
- 125000000740 n-pentyl group Chemical group [H]C([H])([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
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 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
- 238000000059 patterning Methods 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 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
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 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
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000002948 undecyl 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])C([H])([H])C([H])([H])[H] 0.000 description 1
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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
- 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
- C23C16/04—Coating on selected surface areas, e.g. using masks
-
- 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
- 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
- C23C16/06—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 deposition of metallic material
- C23C16/18—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 deposition of metallic material from metallo-organic compounds
-
- 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
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
-
- 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
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
-
- 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
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/401—Oxides containing silicon
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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
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/42—Silicides
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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
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
Definitions
- the present invention relates to a method for forming a thin film, and more particularly, to a method for forming a region-selective thin film using a nuclear growth retardation.
- the patterning of the semiconductor device is manufactured using an arrangement of various material layers and a lithography or etching process.
- device miniaturization has accelerated and the required pattern size has decreased to the nanometer (nm) level, which greatly increases cost and time for nanopattern formation.
- a selective deposition process capable of obtaining a self-aligned structure without the need to perform a subsequent process is required.
- An object of the present invention is to provide a method for forming a thin film that can be selected according to an area.
- a method for forming a region-selective thin film includes: supplying a nuclear growth retardant to the inside of a chamber in which a substrate is placed, and adsorbing the nuclear growth retardant to a non-growth region of the substrate; purging the interior of the chamber; a precursor supply step of supplying a precursor into the chamber and adsorbing it to the growth region of the substrate; purging the interior of the chamber; and supplying a reactant into the chamber to react with the adsorbed precursor to form a thin film.
- the nuclear growth retardant may be represented by the following ⁇ Formula 1>.
- the nuclear growth retardant may be represented by the following ⁇ Formula 2>.
- n is each independently selected from an integer of 1 to 5.
- the nuclear growth retardant may be represented by the following ⁇ Formula 3>.
- n is each independently selected from an integer of 0 to 8
- R1 is each independently selected from an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or a hydrogen atom
- R2 is each It is independently selected from an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
- the nuclear growth retardant may be represented by the following ⁇ Formula 4>.
- n is each independently selected from an integer of 1 to 8
- m is each independently selected from an integer of 1 to 5
- R1 or R2 is each independently an alkyl group having 1 to 8 carbon atoms, carbon number It is selected from a 3-6 cycloalkyl group and a C6-C12 aryl group.
- the nuclear growth retardant may be represented by the following ⁇ Formula 5>.
- n is each independently selected from an integer of 1 to 5
- m is each independently selected from an integer of 0 to 8
- R1 is each independently selected from an alkyl group having 1 to 8 carbon atoms or a hydrogen atom.
- R2 is each independently selected from an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
- the nuclear growth retardant may be represented by the following ⁇ Formula 6>.
- n is each independently selected from an integer of 1 to 8
- m is each independently selected from an integer of 1 to 6
- R1 or R2 is each independently an alkyl group having 1 to 8 carbon atoms, carbon number It is selected from a 3-6 cycloalkyl group and a C6-C12 aryl group.
- the nuclear growth retardant may be represented by the following ⁇ Formula 7>.
- n is each independently selected from an integer of 0 to 5
- m is each independently selected from an integer of 1 to 5
- R is each independently an alkyl group having 1 to 10 carbon atoms, 3 to It is selected from a cycloalkyl group having 10 and an aryl group having 6 to 12 carbon atoms.
- the nuclear growth retardant may be represented by the following ⁇ Formula 8>.
- n is each independently selected from an integer of 0 to 8
- R1 to R3 are each independently an alkyl group having 1 to 8 carbon atoms
- R4 is hydrogen, an alkyl group having 1 to 6 carbon atoms
- the number of carbon atoms is It is selected from 1 to 8 alkoxy groups.
- the non-growth region may be a metal-containing layer having at least one of Group 1 to Group 13 elements as a central element.
- the metal-containing layer may be a metal-containing layer having at least one of Group 4 elements including Zr, Hf, and Ti as a central element.
- the metal-containing layer may be a metal-containing layer having at least one of Group 5 elements including Nb and Ta as a central element.
- the metal-containing layer may be a metal-containing layer having at least one of group 6 elements including W as a central element.
- the metal-containing layer may be a metal-containing layer having at least one of Group 11 elements including Cu as a central element.
- the metal-containing layer may be a metal-containing layer having at least one of group 13 elements including Al as a central element.
- the metal-containing layer may be a metal itself.
- the metal-containing layer may be a metal oxide.
- the metal-containing layer may be a metal nitride.
- the growth region may include at least one of group 14 elements including Si and Ge as a central element.
- the growth region may be a silicon-containing layer.
- the silicon-containing layer may be at least one selected from among Si, SiO, SiN, SiCN, C-doped SiN, and SiON.
- the growth region may be a germanium-containing layer.
- the precursor may be an organic compound having at least one of Group 14 elements including Si and Ge as a central element.
- the precursor may be represented by the following ⁇ Formula 9>.
- M is one of group 14 elements including Si and Ge
- R1 to R4 are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, 1 to carbon atoms
- the precursor may be represented by the following ⁇ Formula 10>.
- M is one of group 14 elements including Si and Ge
- R1 to R6 are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, 1 to carbon atoms
- Alkylamine group having 10 carbon atoms dialkyl amine group having 1 to 10 carbon atoms, arylamine group having 6 to 12 carbon atoms, aralkylamine group having 7 to 13 carbon atoms, cyclic amine group having 3 to 10 carbon atoms, and cyclic amine group having 3 to 10 carbon atoms. It is selected from a heterocyclic amine group, a C6-C12 heteroarylamine group, a C2-C10 alkylsilylamine group, an azide group, or a halogen.
- the precursor may be represented by the following ⁇ Formula 11>.
- M is one of group 14 elements including Si and Ge
- R1 to R5 are each independently selected from a hydrogen atom
- R6 to R9 are each independently hydrogen An atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkylamine group having 1 to 10 carbon atoms, a dialkyl amine group having 1 to 10 carbon atoms, an arylamine group having 6 to 12 carbon atoms, an arylamine group having 7 to 13 carbon atoms
- the precursor may be represented by the following ⁇ Formula 12>.
- M is one of group 14 elements including Si and Ge
- R1 to R10 are each independently selected from a hydrogen atom
- R11 to R14 are each independently hydrogen An atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkylamine group having 1 to 10 carbon atoms, a dialkyl amine group having 1 to 10 carbon atoms, an arylamine group having 6 to 12 carbon atoms, an arylamine group having 7 to 13 carbon atoms
- the precursor may be represented by the following ⁇ Formula 13>.
- M is one of group 14 elements including Si and Ge
- R1 to R6 are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, 1 to carbon atoms
- Alkylamine group having 10 carbon atoms dialkyl amine group having 1 to 10 carbon atoms, arylamine group having 6 to 12 carbon atoms, aralkylamine group having 7 to 13 carbon atoms, cyclic amine group having 3 to 10 carbon atoms, and cyclic amine group having 3 to 10 carbon atoms. It is selected from a heterocyclic amine group, a C6-C12 heteroarylamine group, a C2-C10 alkylsilylamine group, an azide group, or a halogen.
- the reactant may be one or more of O3, O2, H2O, H2O2, N2O, and NH3.
- the thin film may be formed by metal organic chemical vapor deposition (MOCVD) or atomic layer deposition (ALD).
- MOCVD metal organic chemical vapor deposition
- ALD atomic layer deposition
- the subsequently supplied precursor in a state in which the nuclear growth retardant is adsorbed to the non-growth region, the subsequently supplied precursor is prevented from being adsorbed to the non-growth region, thereby preventing the formation of a thin film in the non-growth region. can do.
- FIG. 1 is a flowchart schematically illustrating a method for forming a thin film according to an embodiment of the present invention.
- FIG. 2 is a graph schematically illustrating a supply cycle according to FIG. 1 .
- 3 and 4 are diagrams showing the thickness of the silicon oxide film for each cycle according to a comparative example of the present invention.
- 5 and 6 are views showing the thickness of the silicon oxide film for each cycle according to an embodiment of the present invention.
- alkyl or “alkyl group” refers to 1 to 12 carbon atoms, 1 to 10 carbon atoms, 1 to 8 carbon atoms, 1 to 5 carbon atoms, 1 to 3 carbon atoms, straight or branched alkyl groups having from 3 to 8 carbon atoms, or from 3 to 5 carbon atoms.
- the alkyl group includes a methyl group, an ethyl group, a n-propyl group ( n Pr), an iso-propyl group ( i Pr), an n-butyl group ( n Bu), a tert-butyl group ( t Bu), an iso- Butyl group ( i Bu), sec-butyl group ( s Bu), n-pentyl group, tert-pentyl group, iso-pentyl group, sec-pentyl group, neopentyl group, 3-pentyl group, hexyl group, isohexyl group Sil group, heptyl group, 4,4-dimethylpentyl group, octyl group, 2,2,4-trimethylpentyl group, nonyl group, decyl group, undecyl group, dodecyl group, and isomers thereof, but are limited thereto. it may not be
- film may include, but is not limited to, “membrane” or “thin film”.
- the reactant is not deposited on the substrate or the lower layer in the initial cycle, and several cycles may be required before deposition.
- Such a period is referred to as an incubation time, and the incubation period may vary depending on various conditions such as properties of reactants and properties of a substrate or a lower layer to be deposited.
- FIG. 1 is a flowchart schematically illustrating a method for forming a thin film according to an embodiment of the present invention
- FIG. 2 is a graph schematically illustrating a supply cycle according to FIG. 1 .
- the substrate is loaded into the process chamber, and the following ALD process conditions are adjusted.
- the ALD process conditions may include a temperature of a substrate or a process chamber, a chamber pressure, and a gas flow rate.
- the substrate is exposed to the nucleation retardant supplied to the interior of the chamber, and the nucleation retardant is adsorbed to the surface of the substrate.
- the substrate has a non-growth region and a growth region, and the nuclear growth retardant is adsorbed to the non-growth region and the growth region to prevent adsorption of the precursor in a subsequent process.
- the non-growth region may be a metal-containing layer having at least one of group 1 to group 13 elements as a central element.
- the metal-containing film may include a metal-containing film having at least one of Group 4 elements including Zr, Hf, and Ti as a central element, a metal-containing film having at least one of Group 5 elements including Nb and Ta as a central element, A metal-containing film having at least one of Group 6 elements including W as a central element, a metal-containing film having at least one of Group 11 elements including Cu as a central element, and at least one of Group 13 elements including Al as the center It may be a metal-containing film made of an element, or a metal itself, a metal oxide, or a metal nitride.
- the growth region may have at least one of group 14 elements including Si and Ge as a central element.
- the growth region may be a silicon-containing film, and the silicon-containing film may be at least one selected from among Si, SiO, SiN, SiCN, C-doped SiN, and SiON.
- the growth region may be a germanium-containing layer.
- the nuclear growth retardant may be represented by the following ⁇ Formula 1>.
- the nuclear growth retardant may be represented by the following ⁇ Formula 2>.
- n is each independently selected from an integer of 1 to 5.
- the nuclear growth retardant may be represented by the following ⁇ Formula 3>.
- n is each independently selected from an integer of 0 to 8
- R1 is each independently selected from an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or a hydrogen atom
- R2 is each It is independently selected from an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
- the nuclear growth retardant may be represented by the following ⁇ Formula 4>.
- n is each independently selected from an integer of 1 to 8
- m is each independently selected from an integer of 1 to 5
- R1 or R2 is each independently an alkyl group having 1 to 8 carbon atoms, carbon number It is selected from a 3-6 cycloalkyl group and a C6-C12 aryl group.
- the nuclear growth retardant may be represented by the following ⁇ Formula 5>.
- n is each independently selected from an integer of 1 to 5
- m is each independently selected from an integer of 0 to 8
- R1 is each independently selected from an alkyl group having 1 to 8 carbon atoms or a hydrogen atom.
- R2 is each independently selected from an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
- the nuclear growth retardant may be represented by the following ⁇ Formula 6>.
- n is each independently selected from an integer of 1 to 8
- m is each independently selected from an integer of 1 to 6
- R1 or R2 is each independently an alkyl group having 1 to 8 carbon atoms, carbon number It is selected from a 3-6 cycloalkyl group and a C6-C12 aryl group.
- the nuclear growth retardant may be represented by the following ⁇ Formula 7>.
- n is each independently selected from an integer of 0 to 5
- m is each independently selected from an integer of 1 to 5
- R is each independently an alkyl group having 1 to 10 carbon atoms, 3 to It is selected from a cycloalkyl group having 10 and an aryl group having 6 to 12 carbon atoms.
- the nuclear growth retardant may be represented by the following ⁇ Formula 8>.
- n is each independently selected from an integer of 0 to 8
- R1 to R3 are each independently an alkyl group having 1 to 8 carbon atoms
- R4 is hydrogen, an alkyl group having 1 to 6 carbon atoms
- the number of carbon atoms is It is selected from 1 to 8 alkoxy groups.
- a purge gas eg, an inert gas such as Ar
- an inert gas such as Ar
- the precursor may be an organic compound having at least one of Group 14 elements including Si and Ge as a central element.
- the precursor may be represented by the following ⁇ Formula 9>.
- M is one of group 14 elements including Si and Ge
- R1 to R4 are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, 1 to carbon atoms
- the precursor may be represented by the following ⁇ Formula 10>.
- M is one of group 14 elements including Si and Ge
- R1 to R6 are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, 1 to carbon atoms
- Alkylamine group having 10 carbon atoms dialkyl amine group having 1 to 10 carbon atoms, arylamine group having 6 to 12 carbon atoms, aralkylamine group having 7 to 13 carbon atoms, cyclic amine group having 3 to 10 carbon atoms, and cyclic amine group having 3 to 10 carbon atoms. It is selected from a heterocyclic amine group, a C6-C12 heteroarylamine group, a C2-C10 alkylsilylamine group, an azide group, or a halogen.
- the precursor may be represented by the following ⁇ Formula 11>.
- M is one of group 14 elements including Si and Ge
- R1 to R5 are each independently selected from a hydrogen atom
- R6 to R9 are each independently hydrogen An atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkylamine group having 1 to 10 carbon atoms, a dialkyl amine group having 1 to 10 carbon atoms, an arylamine group having 6 to 12 carbon atoms, an arylamine group having 7 to 13 carbon atoms
- the precursor may be represented by the following ⁇ Formula 12>.
- M is one of group 14 elements including Si and Ge
- R1 to R10 are each independently selected from a hydrogen atom
- R11 to R14 are each independently hydrogen An atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkylamine group having 1 to 10 carbon atoms, a dialkyl amine group having 1 to 10 carbon atoms, an arylamine group having 6 to 12 carbon atoms, an arylamine group having 7 to 13 carbon atoms
- the precursor may be represented by the following ⁇ Formula 13>.
- M is one of group 14 elements including Si and Ge
- R1 to R6 are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, 1 to carbon atoms
- Alkylamine group having 10 carbon atoms dialkyl amine group having 1 to 10 carbon atoms, arylamine group having 6 to 12 carbon atoms, aralkylamine group having 7 to 13 carbon atoms, cyclic amine group having 3 to 10 carbon atoms, and cyclic amine group having 3 to 10 carbon atoms. It is selected from a heterocyclic amine group, a C6-C12 heteroarylamine group, a C2-C10 alkylsilylamine group, an azide group, or a halogen.
- a purge gas eg, an inert gas such as Ar
- an inert gas such as Ar
- the reactive material reacts with the precursor layer to form a thin film, and the reactive material may be one or more of O3, O2, H2O, H2O2, N2O, and NH3 (the reactive material is for forming an oxide, a nitride, Substances other than substances may be substituted).
- a purge gas eg, an inert gas such as Ar
- an inert gas such as Ar
- a silicon oxide film was respectively formed on the Si, SiN, SiO, TiN, HfO, and NbO lower layers using the aforementioned nuclear growth retarder, and the lower layers were formed on the substrate itself or through an ALD process.
- a silicon oxide film was formed through the ALD process, the ALD process temperature was 320° C., and O3 gas was used as the reaction material.
- the silicon oxide film formation process through the ALD process is as follows, and the following process was performed as one cycle (refer to FIGS. 1 and 2).
- the silicon precursor DIPAS (Diisopropylamino Silane) is supplied to the reaction chamber and the silicon precursor is adsorbed on the substrate
- a silicon oxide film was formed on each of the Si, SiN, SiO, TiN, HfO, and NbO lower layers without using the nuclear growth retardant described above, and the lower layers were formed on the substrate itself or through an ALD process.
- a silicon oxide film was formed through the ALD process, the ALD process temperature was 320° C., and O3 gas was used as the reaction material.
- the silicon oxide film formation process through the ALD process is as follows, and the following process was performed as one cycle.
- the silicon precursor DIPAS Diisopropylamino Silane
- O3 gas is supplied to the reaction chamber to form a silicon oxide film
- FIGS. 3 and 4 are views showing the thickness of the silicon oxide film for each cycle according to a comparative example of the present invention
- FIGS. 5 and 6 are views showing the thickness of the silicon oxide film for each cycle according to an embodiment of the present invention.
- DIPAS used as the Si-containing precursor does not have a latent period without selectivity depending on the underlying film (or substrate), whereas, in the case of the Example, the latent period is different depending on the underlying film (or substrate), and complete selectivity in a specific cycle It can be seen that growth is possible.
- the present invention can be applied to various types of semiconductor manufacturing methods.
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Abstract
Description
Claims (30)
- 핵성장 지연제를 기판이 놓여진 챔버의 내부에 공급하여, 상기 기판의 비성장영역에 흡착시키는 핵성장 지연제 공급 단계;상기 챔버의 내부를 퍼지하는 단계;상기 챔버의 내부에 전구체를 공급하여, 상기 기판의 성장영역에 흡착시키는 전구체 공급 단계;상기 챔버의 내부를 퍼지하는 단계; 및상기 챔버의 내부에 반응 물질을 공급하여 흡착된 상기 전구체와 반응하고 박막을 형성하는 박막 형성 단계를 포함하는, 영역 선택적 박막 형성 방법.
- 제1항에 있어서,상기 비성장영역은 1족 내지 13족 원소 중 하나 이상을 중심원소로 하는 금속 함유막인, 영역 선택적 박막 형성 방법.
- 제10항에 있어서,상기 금속 함유막은 Zr, Hf, Ti을 포함하는 4족 원소 중 하나 이상을 중심원소로 하는 금속 함유막인, 영역 선택적 박막 형성 방법.
- 제10항에 있어서,상기 금속 함유막은 Nb 및 Ta을 포함하는 5족 원소 중 하나 이상을 중심원소로 하는 금속 함유막인, 영역 선택적 박막 형성 방법.
- 제10항에 있어서,상기 금속 함유막은 W을 포함하는 6족 원소 중 하나 이상을 중심원소로 하는 금속 함유막인, 영역 선택적 박막 형성 방법.
- 제10항에 있어서,상기 금속 함유막은 Cu을 포함하는 11족 원소 중 하나 이상을 중심원소로 하는 금속 함유막인, 영역 선택적 박막 형성 방법.
- 제10항에 있어서,상기 금속 함유막은 Al을 포함하는 13족 원소 중 하나 이상을 중심원소로 하는 금속 함유막인, 영역 선택적 박막 형성 방법.
- 제10항에 있어서,상기 금속 함유막은 금속 자체인, 영역 선택적 박막 형성 방법.
- 제10항에 있어서,상기 금속 함유막은 금속 산화물인, 영역 선택적 박막 형성 방법.
- 제10항에 있어서,상기 금속 함유막은 금속 질화물인, 영역 선택적 박막 형성 방법.
- 제1항에 있어서,상기 성장영역은 Si, Ge을 포함하는 14족 원소 중 하나 이상을 중심원소로 하는, 영역 선택적 박막 형성 방법.
- 제1항에 있어서,상기 성장영역은 실리콘 함유막인, 영역 선택적 박막 형성 방법.
- 제20항에 있어서,상기 실리콘 함유막은 Si, SiO, SiN, SiCN, C-doped SiN, SiON 중 선택된 하나 이상인, 영역 선택적 박막 형성 방법.
- 제1항에 있어서,상기 성장영역은 게르마늄 함유막인, 영역 선택적 박막 형성 방법.
- 제1항에 있어서,상기 전구체는 Si, Ge 을 포함하는 14족 원소 중 하나 이상을 중심원소로 하는 유기 화합물인, 영역 선택적 박막 형성 방법.
- 제23항에 있어서,상기 전구체는 하기 <화학식 9>로 표시되는, 영역 선택적 박막 형성 방법.<화학식 9>상기 <화학식 9>에서,M은 Si, Ge 을 포함하는 14족 원소 중 하나이며,R1 내지 R4는 각각 독립적으로 수소 원자, 탄소수 1 내지 10의 알킬기, 탄소수 6 내지 12의 아릴기, 탄소수 1 내지 10의 알킬아민기, 탄소수 1 내지 10의 다이알킬 아민기, 탄소수 6 내지 12의 아릴아민기, 탄소수 7 내지 13의 아랄킬아민기, 탄소수 3 내지 10의 사이클릭 아민기, 탄소수 3 내지 10의 헤테로사이클릭 아민기, 탄소수 6 내지 12의 헤테로아릴아민기, 탄소수 2 내지 10의 알킬실릴아민기, 아자이드기 또는 할로겐 중에서 선택된다.
- 제23항에 있어서,상기 전구체는 하기 <화학식 10>로 표시되는, 영역 선택적 박막 형성 방법.<화학식 10>상기 <화학식 10>에서,M은 Si, Ge 을 포함하는 14족 원소 중 하나이며,R1 내지 R6은 각각 독립적으로 수소 원자, 탄소수 1 내지 10의 알킬기, 탄소수 6 내지 12의 아릴기, 탄소수 1 내지 10의 알킬아민기, 탄소수 1 내지 10의 다이알킬 아민기, 탄소수 6 내지 12의 아릴아민기, 탄소수 7 내지 13의 아랄킬아민기, 탄소수 3 내지 10의 사이클릭 아민기, 탄소수 3 내지 10의 헤테로사이클릭 아민기, 탄소수 6 내지 12의 헤테로아릴아민기, 탄소수 2 내지 10의 알킬실릴아민기, 아자이드기 또는 할로겐 중에서 선택된다.
- 제23항에 있어서,상기 전구체는 하기 <화학식 11>로 표시되는, 영역 선택적 박막 형성 방법.<화학식 11>상기 <화학식 11>에서,M은 Si, Ge 을 포함하는 14족 원소 중 하나이며,R1 내지 R5는 각각 독립적으로 수소 원자, 탄소수 1 내지 10의 알킬기 중에서 선택되고, R6 내지 R9는 각각 독립적으로 수소 원자, 탄소수 1 내지 10의 알킬기, 탄소수 6 내지 12의 아릴기, 탄소수 1 내지 10의 알킬아민기, 탄소수 1 내지 10의 다이알킬 아민기, 탄소수 6 내지 12의 아릴아민기, 탄소수 7 내지 13의 아랄킬아민기, 탄소수 3 내지 10의 사이클릭 아민기, 탄소수 3 내지 10의 헤테로사이클릭 아민기, 탄소수 6 내지 12의 헤테로아릴아민기, 탄소수 2 내지 10의 알킬실릴아민기, 아자이드기 또는 할로겐 중에서 선택된다.
- 제23항에 있어서,상기 전구체는 하기 <화학식 12>로 표시되는, 영역 선택적 박막 형성 방법.<화학식 12>상기 <화학식 12>에서,M은 Si, Ge 을 포함하는 14족 원소 중 하나이며,R1 내지 R10은 각각 독립적으로 수소 원자, 탄소수 1 내지 10의 알킬기 중에서 선택되고, R11 내지 R14는 각각 독립적으로 수소 원자, 탄소수 1 내지 10의 알킬기, 탄소수 6 내지 12의 아릴기, 탄소수 1 내지 10의 알킬아민기, 탄소수 1 내지 10의 다이알킬 아민기, 탄소수 6 내지 12의 아릴아민기, 탄소수 7 내지 13의 아랄킬아민기, 탄소수 3 내지 10의 사이클릭 아민기, 탄소수 3 내지 10의 헤테로사이클릭 아민기, 탄소수 6 내지 12의 헤테로아릴아민기, 탄소수 2 내지 10의 알킬실릴아민기, 아자이드기 또는 할로겐 중에서 선택된다.
- 제23항에 있어서,상기 전구체는 하기 <화학식 13>로 표시되는, 영역 선택적 박막 형성 방법.<화학식 13>상기 <화학식 13>에서,M은 Si, Ge 을 포함하는 14족 원소 중 하나이며,R1 내지 R6은 각각 독립적으로 수소 원자, 탄소수 1 내지 10의 알킬기, 탄소수 6 내지 12의 아릴기, 탄소수 1 내지 10의 알킬아민기, 탄소수 1 내지 10의 다이알킬 아민기, 탄소수 6 내지 12의 아릴아민기, 탄소수 7 내지 13의 아랄킬아민기, 탄소수 3 내지 10의 사이클릭 아민기, 탄소수 3 내지 10의 헤테로사이클릭 아민기, 탄소수 6 내지 12의 헤테로아릴아민기, 탄소수 2 내지 10의 알킬실릴아민기, 아자이드기 또는 할로겐 중에서 선택된다.
- 제1항에 있어서,상기 반응 물질은 O3, O2, H2O, H2O2, N2O, NH3 중 하나 이상인, 영역 선택적 박막 형성 방법.
- 제1항에 있어서,상기 박막은 화학기상 증착법(Metal Organic Chemical Vapor Deposition, MOCVD) 또는 원자층 증착법(Atomic layer Deposition, ALD)에 의해 형성되는, 영역 선택적 박막 형성 방법.
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US18/260,402 US20240068091A1 (en) | 2021-01-05 | 2022-01-05 | Area-selective emthod for forming thin film by using nuclear growth retardation |
CN202280009152.0A CN116829761A (zh) | 2021-01-05 | 2022-01-05 | 利用核生长阻滞的区域选择性薄膜形成方法 |
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TWI805171B (zh) | 2023-06-11 |
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