JP3317998B2 - シリカ前駆物質での下地のコーティング方法 - Google Patents
シリカ前駆物質での下地のコーティング方法Info
- Publication number
- JP3317998B2 JP3317998B2 JP14267692A JP14267692A JP3317998B2 JP 3317998 B2 JP3317998 B2 JP 3317998B2 JP 14267692 A JP14267692 A JP 14267692A JP 14267692 A JP14267692 A JP 14267692A JP 3317998 B2 JP3317998 B2 JP 3317998B2
- Authority
- JP
- Japan
- Prior art keywords
- coating
- silica
- silica precursor
- environment
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 89
- 238000000576 coating method Methods 0.000 title claims description 59
- 239000000377 silicon dioxide Substances 0.000 title claims description 44
- 239000002243 precursor Substances 0.000 title claims description 24
- 239000000758 substrate Substances 0.000 title claims description 21
- 239000011248 coating agent Substances 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 24
- 230000008018 melting Effects 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 8
- 239000011347 resin Substances 0.000 description 19
- 229920005989 resin Polymers 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000003973 paint Substances 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000012298 atmosphere Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- -1 hydride silane Chemical compound 0.000 description 5
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920003209 poly(hydridosilsesquioxane) Polymers 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052703 rhodium Inorganic materials 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910008051 Si-OH Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910006358 Si—OH Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KLFRPGNCEJNEKU-FDGPNNRMSA-L (z)-4-oxopent-2-en-2-olate;platinum(2+) Chemical compound [Pt+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O KLFRPGNCEJNEKU-FDGPNNRMSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 229910018540 Si C Inorganic materials 0.000 description 1
- 229910020175 SiOH Inorganic materials 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- MVIOINXPSFUJEN-UHFFFAOYSA-N benzenesulfonic acid;hydrate Chemical compound O.OS(=O)(=O)C1=CC=CC=C1 MVIOINXPSFUJEN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002468 ceramisation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 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
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000005609 naphthenate group Chemical group 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
- 229930195735 unsaturated hydrocarbon Chemical group 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02205—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition
- H01L21/02208—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5035—Silica
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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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/1208—Oxides, e.g. ceramics
- C23C18/1212—Zeolites, glasses
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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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/122—Inorganic polymers, e.g. silanes, polysilazanes, polysiloxanes
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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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1275—Process of deposition of the inorganic material performed under inert atmosphere
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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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1279—Process of deposition of the inorganic material performed under reactive atmosphere, e.g. oxidising or reducing atmospheres
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
- H01L21/02134—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC the material comprising hydrogen silsesquioxane, e.g. HSQ
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02205—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition
- H01L21/02208—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02214—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen
- H01L21/02216—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen the compound being a molecule comprising at least one silicon-oxygen bond and the compound having hydrogen or an organic group attached to the silicon or oxygen, e.g. a siloxane
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02282—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process liquid deposition, e.g. spin-coating, sol-gel techniques, spray coating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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Description
形成させる方法に関する。該方法は、シリカ前駆物質の
塗料を下地に塗布し、それを不活性環境下でその融点以
上の温度に加熱することから成る。融解した被膜は次に
シリカへの転化を促進する環境下で被膜をシリカに転化
させるのに十分な時間加熱する。
縁作用のために使用することはエレクトロニクス技術に
おいて既知である。例えば、ハルスカ(Halusk
a)らは、米国特許第4,756,977号に水素シル
セスキサン樹脂の溶液を電子デバイスに塗布し、次に空
気中で200℃〜1000℃の温度において加熱による
セラミック化によって生成されたシリカ被膜を開示して
いる。それによって得られたセラミック被膜は、微小硬
さ、耐水性、高接着性、等の多くの望ましい特性をもっ
ている。
不活性環境下、次にシリカへの転化を促進する反応性環
境下で逐次加熱することによって、従来の方法で形成し
たシリカ被膜と比べて優れた平坦性と割れの少ない被膜
が生成することを見出した。
の間の融点をもったシリカ前駆物質を下地に塗布して該
下地に固体の被膜を形成させ;該被膜を不活性環境下
で、該シリカ前駆物質の固体被膜を該被膜が融解して流
動するのに十分な時間、該シリカ前駆物質の融点以上の
温度に加熱し;該固体被膜が融解そして該下地表面に均
一に流動した後、該被膜をシリカに転化させるのに十分
な温度において、一定の時間該被膜を反応性環境にさら
す工程から成ることを特徴とする下地にシリカ被膜を形
成する方法が提供される。
たシリカ前駆物質はセラミック化の前に不活性環境下で
再現性をもって融解および流動するという発見に基いて
いる。この発見を、シリカ前駆物質をシリカへの転化前
に下地の表面に制御自在に融解および均一に流動させる
ために本発明に利用する。この方法は、被膜における酸
化および架橋と融解の同時開始のために本法が乱れた流
をもたらさないから、被膜を酸化雰囲気で加熱すること
を示唆する点において従来の技術より格別に有利であ
る。同様に、本法は、該方法にしばしば高温が必要であ
るから不活性雰囲気で前駆物質のシリカへの完全転化を
意図している点においても従来の技術より有利である。
前記のように不活性環境と酸化性環境の逐次使用は望ま
しい流動特性および低温セラミック化を可能にする。
び絶縁層として有用である。例えば、これら被膜の平坦
化および絶縁特性は、それら被膜を多層化デバイスにお
ける中間レベルの絶縁体として電子デバイス用に理想的
に適したものにする。同様に、これら被膜の高密度およ
び低欠陥率は該被膜を水分およびイオン不純物のような
環境汚染物質から電子デバイスを保護するのに有用にさ
せる。
わらずここに教示の被膜は該被膜を必要とする全ての下
地(又は基材)に使用することができる。その上、かか
る下地(又は基材)およびデバイスの選択は、本発明に
利用される温度および環境において下地の熱および化学
的安定性のニーズによってのみ限定される。
残留のSi−C、Si−H、Si−OHおよび/または
Si−OCを完全に含まない又は多少含むがセラミック
の性質であるSi−O−Si結合を含む熱分解物質を意
味する:用語「平坦化塗料」は、その塗料の塗布前の表
面よりも不規則性が少ない塗料を意味する;用語「電子
デバイス」又は「電子回路」は、シリコンをベースにし
たデバイスに限定されなくて、ヒ化ガリウムをベースに
したデバイス、焦平面アレー、オプトエレクトロニクス
・デバイス、光電池および光デバイスを含む。該デバイ
スの特定の例としては、トランジスタ状デバイス、キャ
パシタおよびキヤパシタ状デバイス、多層デバイス、3
−Dデバイス、SOIデバイス、超格子デバイス、等が
ある。
を有するシリカ前駆物質からなるプレセラミック塗料を
下地に塗布することから成る方法によって生成される。
そのプレセラミック塗料は、次に不活性の環境下でシリ
カ前駆物質の融点以上で、その塗料を流動させるのに十
分な時間であるがその塗料をセラミック化させるには不
十分な温度および時間加熱する。融解した塗料は次にシ
リカへの転化を促進する環境下で融解プレセラミック塗
料をシリカに転化させるのに十分な時間および温度で加
熱する。
性雰囲気下約50〜450℃の間の融点を有し、約10
00℃以下の温度でシリカに転化することができるもの
はいずれでもよい。かかる材料の例としては、ヒドリド
シラン樹脂、加水分解又は部分加水分解したRxSi
(OR)4−x[ここでRはそれぞれアルキル、アリー
ルおよび不飽和炭化水素からなる群から選び、xは0〜
2である]、および従来のスピン・オン・グラス(sp
in−on−glasses)、等がある。しかしなが
ら、ここではヒドリドシラン樹脂の使用が望ましく、水
素シルセスキオキサン樹脂の使用が特に望ましい。
−樹脂」は、本出願においては式HSi(OH)x(O
R)yOz/2(式中の各Rは酸素を介してケイ素に結
合したときに加水分解性置換基を生成する有機基又は置
換有機基である、x=0〜2、y=0〜2、z=1〜
3、x+y+z=3)の各種ヒドリドシラン樹脂を記載
するために用いる。この構造式によって表わさないけれ
ども、これらの樹脂は少数のケイ素原子を含有してい
る、そしてそのケイ素原子には生成又は処理に含まれる
種々の要素のために0又は2個の水素原子が結合してい
る。
SiX3(Xは加水分解性基である)のシランの加水分
解および縮合から成るプロセスによって生成される。こ
れらの反応は完全縮合(HSiO3/2)n樹脂生成す
るか、或いは加水分解および/または縮合は、部分水解
物(Si−OR基を含有)および/または部分縮合物
(SiOH基を含有)が生成されるような中間点で中断
される。かかる方法はコリンズ(Collins)らの
米国特許第3,615,272号の方法を含む。それに
は、ベンゼンスルホン酸水和物加水分解媒質においてト
リクロロシランを加水分解し、得られた樹脂は水を水性
スルホン酸で洗浄することによってほゞ完全に縮合した
H−樹脂(100〜300ppmまでのシラノールを含
有)を生成できることが記載されている。バンク(Ba
nk)らは米国特許第5,010,159号にアリール
スルホン酸水和物加水分解媒質においてヒドリドシラン
を加水分解して樹脂を生成し、次にそれに中和剤を接触
させることからる別の方法を教示している。この後者の
方法の実施例は酸/シランの比が約6/1を採用してい
る。
よって米国特許第4,999,397号に記載されてい
るもの、酸性アルコール加水分解媒質においてアルコキ
シ又はアシルオキシシランを加水分解することによって
生成されるもの、特開昭59−178749号、60−
86017号および63−107122号に開示されて
いるもの、等も使用できる。
塗布してプレセラミック被膜を形成させる。従来の方法
はいずれも使用できるけれども、特に溶媒とシリカ前駆
物質からなる溶液で下地をコーテイングするのが望まし
い。蒸発などの方法による溶媒の除去によりプレセラミ
ック被膜が生成する。しかしながら、他の同様の方法も
ここでは考えられる。本発明の別の実施態様でのシリカ
前駆物質は不活性環境下で下地に塗布して重合体の早期
架橋を防ぐ。
質は最初に溶媒に溶解させる。かくはんおよび/または
加熱のような種々の促進手段を用いて溶解を助けること
ができる。使用できる溶媒は、シリカ前駆物質を溶解し
て塗料に影響を与えることなく溶液又は懸濁液を生成す
るものはいずれも含む。これらの溶媒は、例えばエチル
又はイソプロピルのようなアルコール、ベンゼンやトル
エンのような芳香族炭化水素、n−ヘプタンやドデカン
のようなアルカン、ケトン、エステル、グリコールエー
テル又は環状ジメチルポリシロキサンを前記材料を低固
体分に溶解させるのに十分な量で含むことができる。一
般に、前記溶媒をたくさん使用して0.1〜50重量%
の溶液を生成する。
する場合には、白金、ロジウム又は銅触媒も添加してシ
リカへの転化速度および量を高めることができる。一般
に、可溶化できる白金、ロジウム又は銅の化合物又は錯
体はいずれも使用できる。例えば、ダウコーニング社か
ら得られるロジウム触媒RhCl3〔S(CH2CH2
CH2CH3)2〕3、白金アセチルアセトナート、又
はナフテン酸第二銅のような組成物は全て本発明の範囲
内である。これらの触媒は一般にヒドリドシランの重量
を基準にして約5〜1000ppmの白金、ロジウム又
は銅が添加される。
ングはスピン(回転)コーテイング、浸漬コーテイン
グ、吹付コーテイング又はフロー・コーテイングのよう
な方法によって塗布する。周囲環境にさらすことによる
単純な空気乾燥や真空又は緩熱の印加による適当な手段
による溶媒の蒸発によって必要なプレセラミック被膜が
得られる。前記のように、本発明の別の実施態様は、ポ
リマーの早期架橋を防ぐために不活性雰囲気中で下地を
シリカ前駆物質でコーテイングすることからなる。 得
られたプレセラミック被膜は次に不活性環境でシリカ前
駆物質の融点以上でその被膜を流動さすのに十分な時間
であるが、その被膜をセラミック化させるのに不十分な
温度および時間で加熱する。ここでの用語「融点」は、
非晶質の固体が下地の表面を流動する粘弾性樹脂に転化
される温度を意味する。この方法はシリカ前駆物質を下
地の表面に平らに分散させ全ての平らでない状態を平坦
化させる。その上、下地の表面をシールすると共にピン
ホール、割れ又は他の表面の不規則を直すおよび/また
は防止するのを助ける。
応しない不活性環境を使用することができる。例えば、
アルゴン、ヘリウム又は窒素からなる環境は全て使用で
きる。同様に、真空の使用も流れに必要な環境を提供す
る。
間中にセラミック化を開始させることなくシリカ前駆物
質を融解する温度にする必要がある。約50〜450℃
の範囲内の温度が一般に適当である。シリカ前駆物質と
して水素シルセスキオキサン樹脂を用いる場合の温度
は、一般に約150〜400℃である。
度で樹脂を流動させ、しかもセラミック化をさせない時
間にすべきである。一般に、この時間は1/2〜数時間
である。実用的な理由から、その時間は約1時間以下が
望ましく、約15分以下がさらに望ましい。
えて融解シリカ前駆物質のシリカへの転化を促進させ
る。空気、O2、酸素プラズマ、アンモニア、アミン、
等から成る環境のような反応性環境を用いる。しかしな
がら、Si−H結合を加水分解させるために湿性雰囲気
下、次に残留するSi−OH基の全てを除去させるため
に乾燥アンモニア雰囲気下で加熱するのが特に望まし
い。
十分な温度で該反応性環境にかける。一般に、この温度
は反応性環境に依存して約20〜1000℃である。好
適な温度は約50〜800℃の範囲内である。一般に温
度が高い程、速くかつ完全にセラミック化するが、前記
温度も種々の感温性下地に悪影響を与える。感温性下地
には、約100〜400℃の範囲内の温度がしばしば望
ましい。プレセラミック被膜は一般にこれらの温度に被
膜をセラミック化させるのに十分な時間、一般に約6時
間まで(約2時間までの範囲が望ましい)かける。
はマイクロ波エネルギーのような熱源をいずれかの熱分
解工程中に使用することができる。
下地に生成される。その被膜は種々の下地の不規則な表
面をなめらかにさせかつ優れた付着性を有する。この被
膜も他の被膜、例えばさらに別のSiO2被膜、SiO
2/改質セラミック酸化物層、シリコン含有被膜、炭化
ケイ素含有被膜、SiN含有被膜、SiNC含有被膜お
よび/またはダイアモンド状炭素被膜で被覆することが
できる。かかる多層被膜は米国特許第4,973,52
6号に教示されている。
キサン樹脂が25重量%のメチルイソブチルケトン溶液
6mLをコーテイングして、それを空気中で2000r
pmで10秒間回転させた。コーテイングしたウエーハ
は次に窒素環境に入れて、熱板上で150℃×1分、2
00℃×1分および300℃×1分の加熱をした。次に
融解した被膜をもったウエーハを酸素中で400℃×1
0分の迅速熱処理によって加熱した。得られた被膜は完
全に平らなシリカ被膜であった。比較のために製品カタ
ログの仕様に従って商品名アキュグラス(Accugl
ass)なるスピン・オン・グラス(spin−on
glass)をコーテイングして処理した市販のデバイ
スでは平坦な被膜は得られなかった。これらのことか
ら、本発明の方法がより平坦な表面を提供することは明
らかである。
Claims (1)
- 【請求項1】 50〜450℃の間の融点をもったシリ
カ前駆物質を下地に塗布して該下地に固体の被膜を形成
させ;該被膜を不活性環境下で、該シリカ前駆物質の固
体被膜を該被膜が融解して流動するのに十分な時間、該
シリカ前駆物質の融点以上の温度に加熱し;該固体被膜
が融解そして該下地表面に均一に流動した後、該被膜を
シリカに転化させるのに十分な温度において、一定の時
間該被膜を反応性環境にさらす工程から成ることを特徴
とする下地にシリカ被膜を形成する方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/710627 | 1991-06-05 | ||
US07/710,627 US5145723A (en) | 1991-06-05 | 1991-06-05 | Process for coating a substrate with silica |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05146755A JPH05146755A (ja) | 1993-06-15 |
JP3317998B2 true JP3317998B2 (ja) | 2002-08-26 |
Family
ID=24854848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14267692A Expired - Lifetime JP3317998B2 (ja) | 1991-06-05 | 1992-06-03 | シリカ前駆物質での下地のコーティング方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US5145723A (ja) |
EP (1) | EP0517475B1 (ja) |
JP (1) | JP3317998B2 (ja) |
KR (1) | KR100289850B1 (ja) |
CA (1) | CA2069521A1 (ja) |
DE (1) | DE69232607T2 (ja) |
ES (1) | ES2176184T3 (ja) |
TW (1) | TW237560B (ja) |
Families Citing this family (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5445894A (en) * | 1991-04-22 | 1995-08-29 | Dow Corning Corporation | Ceramic coatings |
US5436029A (en) * | 1992-07-13 | 1995-07-25 | Dow Corning Corporation | Curing silicon hydride containing materials by exposure to nitrous oxide |
CA2104340A1 (en) * | 1992-08-31 | 1994-03-01 | Grish Chandra | Hermetic protection for integrated circuits |
JP3174416B2 (ja) * | 1992-12-10 | 2001-06-11 | ダウ・コ−ニング・コ−ポレ−ション | 酸化ケイ素膜の形成方法 |
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-
1991
- 1991-06-05 US US07/710,627 patent/US5145723A/en not_active Expired - Lifetime
-
1992
- 1992-05-26 CA CA002069521A patent/CA2069521A1/en not_active Abandoned
- 1992-05-27 TW TW081104150A patent/TW237560B/zh not_active IP Right Cessation
- 1992-06-02 DE DE69232607T patent/DE69232607T2/de not_active Expired - Fee Related
- 1992-06-02 ES ES92305028T patent/ES2176184T3/es not_active Expired - Lifetime
- 1992-06-02 EP EP92305028A patent/EP0517475B1/en not_active Expired - Lifetime
- 1992-06-03 KR KR1019920009578A patent/KR100289850B1/ko not_active IP Right Cessation
- 1992-06-03 JP JP14267692A patent/JP3317998B2/ja not_active Expired - Lifetime
Also Published As
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---|---|
EP0517475A2 (en) | 1992-12-09 |
ES2176184T3 (es) | 2002-12-01 |
EP0517475B1 (en) | 2002-05-15 |
US5145723A (en) | 1992-09-08 |
EP0517475A3 (en) | 1993-09-29 |
KR930001757A (ko) | 1993-01-16 |
CA2069521A1 (en) | 1992-12-06 |
KR100289850B1 (ko) | 2001-06-01 |
DE69232607T2 (de) | 2002-12-05 |
TW237560B (ja) | 1995-01-01 |
DE69232607D1 (de) | 2002-06-20 |
JPH05146755A (ja) | 1993-06-15 |
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