JP4640657B2 - スピンオンフォトパターン形成性中間層誘電性材料の使用及びそれを利用する中間半導体素子構造体 - Google Patents
スピンオンフォトパターン形成性中間層誘電性材料の使用及びそれを利用する中間半導体素子構造体 Download PDFInfo
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- JP4640657B2 JP4640657B2 JP2006532955A JP2006532955A JP4640657B2 JP 4640657 B2 JP4640657 B2 JP 4640657B2 JP 2006532955 A JP2006532955 A JP 2006532955A JP 2006532955 A JP2006532955 A JP 2006532955A JP 4640657 B2 JP4640657 B2 JP 4640657B2
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- 239000004065 semiconductor Substances 0.000 title claims description 71
- 239000011229 interlayer Substances 0.000 title description 4
- 239000003989 dielectric material Substances 0.000 title description 3
- 229920002120 photoresistant polymer Polymers 0.000 claims description 95
- 239000000463 material Substances 0.000 claims description 88
- 230000005855 radiation Effects 0.000 claims description 61
- 238000000034 method Methods 0.000 claims description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 36
- 229920001709 polysilazane Polymers 0.000 claims description 33
- 239000000758 substrate Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 20
- 239000000377 silicon dioxide Substances 0.000 claims description 18
- 235000012239 silicon dioxide Nutrition 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 229920003209 poly(hydridosilsesquioxane) Polymers 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 4
- 229910003481 amorphous carbon Inorganic materials 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 206010073306 Exposure to radiation Diseases 0.000 claims 3
- 229920000734 polysilsesquioxane polymer Polymers 0.000 claims 3
- DHXVGJBLRPWPCS-UHFFFAOYSA-N Tetrahydropyran Chemical compound C1CCOCC1 DHXVGJBLRPWPCS-UHFFFAOYSA-N 0.000 claims 1
- 125000001145 hydrido group Chemical group *[H] 0.000 claims 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims 1
- 239000010410 layer Substances 0.000 description 159
- 229910004298 SiO 2 Inorganic materials 0.000 description 23
- 230000008569 process Effects 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000005530 etching Methods 0.000 description 8
- 238000000059 patterning Methods 0.000 description 8
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 7
- 238000006552 photochemical reaction Methods 0.000 description 6
- -1 Methyl siloxanes Chemical class 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229910018557 Si O Inorganic materials 0.000 description 3
- 229910007991 Si-N Inorganic materials 0.000 description 3
- 229910006294 Si—N Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000006117 anti-reflective coating Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- ZPSJGADGUYYRKE-UHFFFAOYSA-N 2H-pyran-2-one Chemical class O=C1C=CC=CO1 ZPSJGADGUYYRKE-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004913 activation Effects 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
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 description 1
- 229960001231 choline Drugs 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012954 diazonium Chemical class 0.000 description 1
- 150000001989 diazonium salts Chemical class 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical class I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/095—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having more than one photosensitive layer
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/075—Silicon-containing compounds
- G03F7/0757—Macromolecular compounds containing Si-O, Si-C or Si-N bonds
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- H—ELECTRICITY
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- 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
- H01L21/02112—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
- H01L21/02137—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 alkyl silsesquioxane, e.g. MSQ
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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
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- 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
- H01L21/02219—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 nitrogen
- H01L21/02222—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 nitrogen the compound being a silazane
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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
- 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
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
- H01L21/02345—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to radiation, e.g. visible light
- H01L21/02348—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to radiation, e.g. visible light treatment by exposure to UV light
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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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Materials For Photolithography (AREA)
Description
本発明は半導体加工技術に関し、更に詳しくは、スピンオンによる、更なる波長の放射線でフォトパターニングの可能な(以下、フォトパターン形成性と言う)中間層誘電性材料を用いることに関する。
フォトレジスト層は、コンピュータチップや集積回路等の半導体素子を成形加工する際に小形化された電子部品を製作するために用いられる。成形加工中に、薄いフォトレジスト層が普通半導体基板へ塗布される。次いで該フォトレジスト層は焼付けられて該フォトレジスト中の溶媒を蒸発させ、そして該フォトレジストを該半導体基板上に固定する。該フォトレジスト材料にパターンを形成するために、該層の一部分がマスクを通して可視光、紫外(UV)線、電子線(EB)及びX線等の放射線で露光される。該放射線は、放射線で露光された該フォトレジスト層の一部分で光化学反応を起こさせ、これらの部分の溶解度を変化させる。該フォトレジスト層の未露光部分の溶解度は変化しない。該半導体基板は溶解させて除去させるように選択された現像溶液で処理される。該フォトレジスト層の露光部分が除去されるので、所望のパターンが該フォトレジスト層中に形成される。このパターンは湿式または乾式エッチング法等の慣用技法により下に横たわる該半導体素子の層へ転写される。該パターンが下に横たわる該半導体素子の層へ転写されると、該フォトレジスト層の残存部分は除去される。
本発明は中間半導体素子構造体の形成方法を含有する。該方法は、半導体基板上にフォトパターン形成性層を形成することを含有する。該フォトパターン形成性層は、放射線で露光するとシルセスキオキサン材料等の二酸化ケイ素系材料へ選択的に変換されるように配合された有機ケイ素フォトレジスト材料を含有する。キャップ層及びフォトレジスト層が該フォトパターン形成性層上に形成される。該キャップ層は誘電体反射防止被膜(DARC)、下部反射防止被膜(BARC)または金属被膜等の放射線を吸収または反射する材料を含有する。該キャップ層は無定形炭素またはダイアモンド様炭素を含有することができる。該フォトレジスト層を、該フォトレジスト層中に高解像パターンを創り出すために用いられる第1波長の放射線で露光すると、該キャップ層は該フォトパターン形成性層を該第1波長から保護する。しかし、該高解像パターンは次いで光リソグラフィ及びエッチング技法により該フォトパターン形成性層へ転写される。該フォトパターン形成性層の露出部分は第2波長の放射線で露光されることにより選択的に二酸化ケイ素系材料へ変換される。
追加の波長で使用可能なフォトパターン形成性スピンオン材料が開示される。該フォトパターン形成性スピンオン材料は層として半導体基板へ塗布され、そして放射線を吸収または反射するキャップ層で被覆される。該キャップ層は、放射線が該フォトパターン形成性層へ通るのを阻止することにより該フォトパターン形成性塗布層を該放射線から保護する。
Claims (35)
- 半導体基板上に、ケイ素重合体、ポリシリン化合物及びポリシラザン化合物からなる群より選択された有機ケイ素フォトレジスト材料を含むフォトパターン形成性層を形成することと、
該フォトパターン形成性層上にキャップ層を形成することと、
該キャップ層上に、ほぼ100nm乃至ほぼ500nmの範囲の波長の放射線に感応するフォトレジスト材料を含むフォトレジスト層を形成することと、
該フォトレジスト層の少なくとも一部分を第1波長の放射線で露光して、該フォトレジスト層中に高解像パターンを与えることと、
該フォトレジスト層の該少なくとも一部分と、その下にある該キャップ層の一部分とを除去して、該フォトパターン形成性層の少なくとも一部分を露出させることと、
該フォトパターン形成性層の該少なくとも一部分を第2波長の放射線で露光して、該フォトパターン形成性層の該少なくとも一部分を二酸化ケイ素系材料へ変換させることと、
を含む中間半導体素子構造体の形成方法。 - 該フォトレジスト層の該少なくとも一部分を第1波長の放射線で露光して該フォトレジスト層中に高解像パターンを与えることが、該フォトパターン形成性層を該第1波長の放射線で露光することなく該フォトレジスト層の該少なくとも一部分を該第1波長の放射線で露光することを含む、請求項1の方法。
- 該フォトレジスト層の該少なくとも一部分を第1波長の放射線で露光して該フォトレジスト層中に高解像パターンを与えることが、該フォトレジスト層の該少なくとも一部分をほぼ100nm乃至ほぼ300nmの範囲の波長の放射線で露光することを含む、請求項1または2の方法。
- 該フォトレジスト層の該少なくとも一部分を第1波長の放射線で露光して該フォトレジスト層中に高解像パターンを与えることが、該フォトレジスト層の該少なくとも一部分を193nmの波長または248nmの波長で露光することを含む、請求項1乃至3のいずれかの方法。
- 該フォトパターン形成性層の該少なくとも一部分を第2波長の放射線で露光することが、該フォトパターン形成性層の該少なくとも一部分をシルセスキオキサン材料へ変換することを含む、請求項1乃至4のいずれかの方法。
- 該フォトパターン形成性層の該少なくとも一部分を第2波長の放射線で露光することが、該フォトパターン形成性層の該少なくとも一部分を、水素シルセスキオキサン、メチルシルセスキオキサン、ポリ水素シルセスキオキサン、ヒドリオポリシルセスキオキサン、メチルポリシルセスキオキサン及びフェニルポリシルセスキオキサンからなる群より選択されたシルセスキオキサン材料へ変換することを含む、請求項1乃至5のいずれかの方法。
- 該シルセスキオキサン材料へ変換された該フォトパターン形成性層の該少なくとも一部分を除去することを更に含む、請求項5又は6の方法。
- 該フォトパターン形成性層の残存部分をシルセスキオキサン材料へ変換することを更に含む、請求項1乃至7のいずれかの方法。
- 該フォトパターン形成性層を該半導体基板上に形成することが、放射線での露光によりシルセスキオキサン材料へ選択的に変換するように配合されている材料から該フォトパターン形成性層を形成することを含む、請求項1乃至8のいずれかの方法。
- 該フォトパターン形成性層を該半導体基板上に形成することが、放射線での露光により、水素シルセスキオキサン、メチルシルセスキオキサン、ポリ水素シルセスキオキサン、ヒドリオポリシルセスキオキサン、メチルポリシルセスキオキサン及びフェニルポリシルセスキオキサンからなる群より選択されたシルセスキオキサン材料へ選択的に変換するように配合されている材料から該フォトパターン形成性層を形成することを含む、請求項1乃至9のいずれかの方法。
- 該フォトパターン形成性層を該半導体基板上に形成することが、光酸発生剤を該フォトパターン形成性層に含めることを含む、該請求項1乃至10のいずれかの方法。
- 該キャップ層を該フォトパターン形成性層上に形成することが、放射線が該フォトパターン形成性層へ通るのを防ぐ材料の層を形成することを含む、請求項1乃至11のいずれかの方法。
- 該キャップ層を該フォトパターン形成性層上に形成することが、該フォトパターン形成性層上に高度に光吸収性または高度に光反射性の材料を含む層を形成することを含む、請求項1乃至12のいずれかの方法。
- 該キャップ層を該フォトパターン形成性層上に形成することが、該フォトパターン形成性層上に誘電体反射防止被膜、下部反射防止被膜または金属被膜を形成することを含む、請求項1乃至13のいずれかの方法。
- 該キャップ層を該フォトパターン形成性層上に形成することが、無定形炭素、炭化ケイ素、窒化チタン、窒化ケイ素及びオキシ窒化ケイ素からなる群より選択された材料から該キャップ層を形成することを含む、請求項1乃至14のいずれかの方法。
- 該キャップ層を該フォトパターン形成性層上に形成することが、放射線が該フォトパターン形成性層へ通るのを防ぐのに十分な厚さを有する該キャップ層を形成することを含む、請求項1乃至15のいずれかの方法。
- 該キャップ層上に該フォトレジスト層を形成することが、ほぼ193nmまたはほぼ248nmの波長に感応するフォトレジスト材料から該フォトレジスト層を形成すること含む、請求項1乃至16のいずれかの方法。
- 半導体基板上に形成されたフォトパターン形成性層であって、放射線での露光により二酸化ケイ素系材料へ変換されるように配合されており、ケイ素重合体、ポリシリン化合物及びポリシラザン化合物からなる群より選択される材料を含むフォトパターン形成性層と、
該フォトパターン形成性層の少なくとも一部分の上に形成されたキャップ層と、
該キャップ層の少なくとも一部分上に形成されたフォトレジスト層であって、ほぼ100nm乃至ほぼ500nmの範囲の波長の放射線に感応する材料を含むフォトレジスト層と、
を含む中間半導体素子構造体。 - 該キャップ層が高度に光吸収性または高度に光反射性の材料を含む、請求項18の中間半導体素子構造体。
- 該フォトレジスト層の少なくとも第1の部分は除去されており、該フォトレジスト層の少なくとも第2の部分が残存し、そして該キャップ層の少なくとも第1の部分は除去されており、該キャップ層の少なくとも第2の部分が残存する、請求項18または19の中間半導体素子構造体。
- 該フォトパターン形成性層の少なくとも一部分が二酸化ケイ素系材料へ変換される、請求項18乃至20のいずれかの中間半導体素子構造体。
- 二酸化ケイ素系材料へ変換された該フォトパターン形成性層の少なくとも一部分が二酸化ケイ素またはそのアルキル化誘導体を含む、請求項21の中間半導体素子構造体。
- 二酸化ケイ素系材料へ変換された該フォトパターン形成性層の少なくとも一部分がシルセスキオキサン材料を含む、請求項21の中間半導体素子構造体。
- 該フォトパターン形成性層が光酸発生剤を含む、請求項18乃至23のいずれかの中間半導体素子構造体。
- 該二酸化ケイ素系材料が二酸化ケイ素またはそのアルキル化誘導体を含む、請求項18乃至24のいずれかの中間半導体素子構造体。
- 該二酸化ケイ素系材料がシルセスキオキサン材料を含む、請求項18乃至25のいずれかの中間半導体素子構造体。
- 該シルセスキオキサン材料が水素シルセスキオキサン、メチルシルセスキオキサン、ポリ水素シルセスキオキサン、ヒドリオポリシルセスキオキサン、メチルポリシルセスキオキサン及びフェニルポリシルセスキオキサンからなる群より選択される、請求項26の中間半導体素子構造体。
- 該キャップ層が、放射線がフォトパターン形成性層に通るのを防ぐ材料を含む、請求項18乃至27のいずれかの中間半導体素子構造体。
- 該キャップ層が誘電体反射防止被膜、下部反射防止被膜または金属被膜を含む、請求項18乃至28のいずれかの中間半導体素子構造体。
- 該キャップ層に用いられる材料が無定形炭素、炭化ケイ素、窒化チタン、窒化ケイ素及びオキシ窒化ケイ素からなる群より選択される、請求項18乃至29のいずれかの中間半導体素子構造体。
- 該キャップ層が、放射線がフォトパターン形成性層に通るのを防ぐのに十分な厚さを有する、請求項18乃至30のいずれかの中間半導体素子構造体。
- 該キャップ層がほぼ10nmを超える厚さを有する、請求項18乃至31のいずれかの中間半導体素子構造体。
- 該フォトレジスト層が高解像パターンを与えることができるフォトレジスト材料を含む、請求項18乃至32のいずれかの中間半導体素子構造体。
- 該フォトレジスト層がほぼ193nmまたはほぼ248nmの波長に感応するフォトレジスト材料を含む、請求項18乃至33のいずれかの中間半導体素子構造体。
- 該二酸化ケイ素系材料が該フォトパターン形成性層から除去されている、請求項28乃至34のいずれかの中間半導体素子構造体。
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Also Published As
Publication number | Publication date |
---|---|
US7678460B2 (en) | 2010-03-16 |
WO2004102274A3 (en) | 2005-09-09 |
KR100840138B1 (ko) | 2008-06-23 |
US8486612B2 (en) | 2013-07-16 |
CN1809788A (zh) | 2006-07-26 |
TWI306545B (en) | 2009-02-21 |
US20060172079A1 (en) | 2006-08-03 |
JP2007503730A (ja) | 2007-02-22 |
TW200508033A (en) | 2005-03-01 |
WO2004102274A2 (en) | 2004-11-25 |
EP1623273A2 (en) | 2006-02-08 |
US20060205236A1 (en) | 2006-09-14 |
US20110065050A1 (en) | 2011-03-17 |
US7855154B2 (en) | 2010-12-21 |
KR20060003094A (ko) | 2006-01-09 |
US7060637B2 (en) | 2006-06-13 |
CN1809788B (zh) | 2010-04-28 |
EP1623273B1 (en) | 2015-06-24 |
US20040229050A1 (en) | 2004-11-18 |
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