JP5054885B2 - 多層構造のゲート絶縁膜を含んだ有機薄膜トランジスタ - Google Patents
多層構造のゲート絶縁膜を含んだ有機薄膜トランジスタ Download PDFInfo
- Publication number
- JP5054885B2 JP5054885B2 JP2004197515A JP2004197515A JP5054885B2 JP 5054885 B2 JP5054885 B2 JP 5054885B2 JP 2004197515 A JP2004197515 A JP 2004197515A JP 2004197515 A JP2004197515 A JP 2004197515A JP 5054885 B2 JP5054885 B2 JP 5054885B2
- Authority
- JP
- Japan
- Prior art keywords
- titanium
- zirconium
- hafnium
- butoxide
- tetramethyl
- 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
- 239000010408 film Substances 0.000 title claims description 67
- 239000010409 thin film Substances 0.000 title claims description 24
- 238000000034 method Methods 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 25
- 229920000620 organic polymer Polymers 0.000 claims description 22
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 claims description 21
- -1 polysiloxane Polymers 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- 239000002105 nanoparticle Substances 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 239000010936 titanium Substances 0.000 claims description 14
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 11
- 229910052726 zirconium Inorganic materials 0.000 claims description 11
- 238000004528 spin coating Methods 0.000 claims description 10
- SDTMFDGELKWGFT-UHFFFAOYSA-N 2-methylpropan-2-olate Chemical compound CC(C)(C)[O-] SDTMFDGELKWGFT-UHFFFAOYSA-N 0.000 claims description 9
- 239000007983 Tris buffer Substances 0.000 claims description 9
- 238000007639 printing Methods 0.000 claims description 8
- OGHBATFHNDZKSO-UHFFFAOYSA-N propan-2-olate Chemical compound CC(C)[O-] OGHBATFHNDZKSO-UHFFFAOYSA-N 0.000 claims description 8
- GBNDTYKAOXLLID-UHFFFAOYSA-N zirconium(4+) ion Chemical compound [Zr+4] GBNDTYKAOXLLID-UHFFFAOYSA-N 0.000 claims description 8
- 229910052735 hafnium Inorganic materials 0.000 claims description 7
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 150000002902 organometallic compounds Chemical class 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052454 barium strontium titanate Inorganic materials 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 6
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 6
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 5
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 5
- CMWCOKOTCLFJOP-UHFFFAOYSA-N titanium(3+) Chemical compound [Ti+3] CMWCOKOTCLFJOP-UHFFFAOYSA-N 0.000 claims description 5
- QCEOZLISXJGWSW-UHFFFAOYSA-K 1,2,3,4,5-pentamethylcyclopentane;trichlorotitanium Chemical compound [Cl-].[Cl-].[Cl-].CC1=C(C)C(C)([Ti+3])C(C)=C1C QCEOZLISXJGWSW-UHFFFAOYSA-K 0.000 claims description 4
- 239000005062 Polybutadiene Substances 0.000 claims description 4
- 239000004695 Polyether sulfone Substances 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 claims description 4
- BFIMXCBKRLYJQO-UHFFFAOYSA-N ethanolate;hafnium(4+) Chemical compound [Hf+4].CC[O-].CC[O-].CC[O-].CC[O-] BFIMXCBKRLYJQO-UHFFFAOYSA-N 0.000 claims description 4
- HHFAWKCIHAUFRX-UHFFFAOYSA-N ethoxide Chemical compound CC[O-] HHFAWKCIHAUFRX-UHFFFAOYSA-N 0.000 claims description 4
- WZVIPWQGBBCHJP-UHFFFAOYSA-N hafnium(4+);2-methylpropan-2-olate Chemical compound [Hf+4].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-] WZVIPWQGBBCHJP-UHFFFAOYSA-N 0.000 claims description 4
- HRDRRWUDXWRQTB-UHFFFAOYSA-N hafnium(4+);propan-2-olate Chemical compound [Hf+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-] HRDRRWUDXWRQTB-UHFFFAOYSA-N 0.000 claims description 4
- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical compound C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 4
- 229920002857 polybutadiene Polymers 0.000 claims description 4
- 229920006393 polyether sulfone Polymers 0.000 claims description 4
- 229920001195 polyisoprene Polymers 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- XPGAWFIWCWKDDL-UHFFFAOYSA-N propan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCC[O-].CCC[O-].CCC[O-].CCC[O-] XPGAWFIWCWKDDL-UHFFFAOYSA-N 0.000 claims description 4
- ZGSOBQAJAUGRBK-UHFFFAOYSA-N propan-2-olate;zirconium(4+) Chemical compound [Zr+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-] ZGSOBQAJAUGRBK-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- MNWRORMXBIWXCI-UHFFFAOYSA-N tetrakis(dimethylamido)titanium Chemical compound CN(C)[Ti](N(C)C)(N(C)C)N(C)C MNWRORMXBIWXCI-UHFFFAOYSA-N 0.000 claims description 4
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 4
- NLOQZPHAWQDLQW-UHFFFAOYSA-J zirconium(4+);disulfate;tetrahydrate Chemical compound O.O.O.O.[Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O NLOQZPHAWQDLQW-UHFFFAOYSA-J 0.000 claims description 4
- UREKUAIOJZNUGZ-LWTKGLMZSA-K (z)-5-bis[[(z)-2,2,6,6-tetramethyl-5-oxohept-3-en-3-yl]oxy]alumanyloxy-2,2,6,6-tetramethylhept-4-en-3-one Chemical compound CC(C)(C)C(=O)\C=C(C(C)(C)C)/O[Al](O\C(=C/C(=O)C(C)(C)C)C(C)(C)C)O\C(=C/C(=O)C(C)(C)C)C(C)(C)C UREKUAIOJZNUGZ-LWTKGLMZSA-K 0.000 claims description 3
- ZBFBXTFQCKIUHU-UHFFFAOYSA-L 1,2,3,5,5-pentamethylcyclopenta-1,3-diene;titanium(4+);dichloride Chemical compound [Cl-].[Cl-].[Ti+4].CC1=[C-]C(C)(C)C(C)=C1C.CC1=[C-]C(C)(C)C(C)=C1C ZBFBXTFQCKIUHU-UHFFFAOYSA-L 0.000 claims description 3
- 229910020684 PbZr Inorganic materials 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910002367 SrTiO Inorganic materials 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- LTBRWBUKPWVGFA-UHFFFAOYSA-N butan-1-olate;hafnium(4+) Chemical compound [Hf+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] LTBRWBUKPWVGFA-UHFFFAOYSA-N 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- MIDYWIPTCYRMQF-UHFFFAOYSA-K oxolane;trichlorotitanium Chemical compound [Cl-].[Cl-].[Cl-].[Ti+3].C1CCOC1.C1CCOC1.C1CCOC1 MIDYWIPTCYRMQF-UHFFFAOYSA-K 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium(II) oxide Chemical compound [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 3
- NSAWTIQLFWITEH-PJFPACTGSA-K (z)-1,1,1-trifluoro-4-[[(z)-5,5,5-trifluoro-4-oxopent-2-en-2-yl]oxy-[(e)-5,5,5-trifluoro-4-oxopent-2-en-2-yl]oxyalumanyl]oxypent-3-en-2-one Chemical compound FC(F)(F)C(=O)/C=C(/C)O[Al](O\C(C)=C/C(=O)C(F)(F)F)O\C(C)=C\C(=O)C(F)(F)F NSAWTIQLFWITEH-PJFPACTGSA-K 0.000 claims description 2
- KILURZWTCGSYRE-LNTINUHCSA-K (z)-4-bis[[(z)-4-oxopent-2-en-2-yl]oxy]alumanyloxypent-3-en-2-one Chemical compound CC(=O)\C=C(\C)O[Al](O\C(C)=C/C(C)=O)O\C(C)=C/C(C)=O KILURZWTCGSYRE-LNTINUHCSA-K 0.000 claims description 2
- YOBOXHGSEJBUPB-MTOQALJVSA-N (z)-4-hydroxypent-3-en-2-one;zirconium Chemical compound [Zr].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O YOBOXHGSEJBUPB-MTOQALJVSA-N 0.000 claims description 2
- KTXWGMUMDPYXNN-UHFFFAOYSA-N 2-ethylhexan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCCC(CC)C[O-].CCCCC(CC)C[O-].CCCCC(CC)C[O-].CCCCC(CC)C[O-] KTXWGMUMDPYXNN-UHFFFAOYSA-N 0.000 claims description 2
- CXRVNRVRMMXKKA-UHFFFAOYSA-N CC(C)O[Ti+2]OC(C)C Chemical compound CC(C)O[Ti+2]OC(C)C CXRVNRVRMMXKKA-UHFFFAOYSA-N 0.000 claims description 2
- KGJNGGGACHGLJF-UHFFFAOYSA-N C[Ti](C1(C=CC=C1)C(C)(C)C)(C1(C=CC=C1)C(C)(C)C)C.C[Ti](C1(C=CC=C1)C(C)(C)C)(C1(C=CC=C1)C(C)(C)C)C Chemical compound C[Ti](C1(C=CC=C1)C(C)(C)C)(C1(C=CC=C1)C(C)(C)C)C.C[Ti](C1(C=CC=C1)C(C)(C)C)(C1(C=CC=C1)C(C)(C)C)C KGJNGGGACHGLJF-UHFFFAOYSA-N 0.000 claims description 2
- RIGJKTGBFJMFEI-UHFFFAOYSA-H Cl[Ti](Cl)(Cl)(Cl)(SC1CCCCC1)SC1CCCCC1 Chemical compound Cl[Ti](Cl)(Cl)(Cl)(SC1CCCCC1)SC1CCCCC1 RIGJKTGBFJMFEI-UHFFFAOYSA-H 0.000 claims description 2
- 239000004640 Melamine resin Substances 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 229930182556 Polyacetal Natural products 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004693 Polybenzimidazole Substances 0.000 claims description 2
- 239000004697 Polyetherimide Substances 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 2
- 239000004954 Polyphthalamide Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 2
- 229920000800 acrylic rubber Polymers 0.000 claims description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 2
- JPUHCPXFQIXLMW-UHFFFAOYSA-N aluminium triethoxide Chemical compound CCO[Al](OCC)OCC JPUHCPXFQIXLMW-UHFFFAOYSA-N 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical class C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- BSDOQSMQCZQLDV-UHFFFAOYSA-N butan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] BSDOQSMQCZQLDV-UHFFFAOYSA-N 0.000 claims description 2
- 229920005549 butyl rubber Polymers 0.000 claims description 2
- IFMWVBVPVXRZHE-UHFFFAOYSA-M chlorotitanium(3+);propan-2-olate Chemical compound [Cl-].[Ti+4].CC(C)[O-].CC(C)[O-].CC(C)[O-] IFMWVBVPVXRZHE-UHFFFAOYSA-M 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- JAGHDVYKBYUAFD-UHFFFAOYSA-L cyclopenta-1,3-diene;titanium(4+);dichloride Chemical compound [Cl-].[Cl-].[Ti+4].C1C=CC=[C-]1.C1C=CC=[C-]1 JAGHDVYKBYUAFD-UHFFFAOYSA-L 0.000 claims description 2
- QOXHZZQZTIGPEV-UHFFFAOYSA-K cyclopenta-1,3-diene;titanium(4+);trichloride Chemical compound Cl[Ti+](Cl)Cl.C=1C=C[CH-]C=1 QOXHZZQZTIGPEV-UHFFFAOYSA-K 0.000 claims description 2
- YQZMEUFOYRWASB-UHFFFAOYSA-L dichlorotitanium;ethylcyclopentane Chemical compound Cl[Ti]Cl.CC[C]1[CH][CH][CH][CH]1.CC[C]1[CH][CH][CH][CH]1 YQZMEUFOYRWASB-UHFFFAOYSA-L 0.000 claims description 2
- AQYLBWKRGHXFDE-UHFFFAOYSA-N diethylazanide titanium(4+) Chemical compound C(C)N(CC)[Ti](N(CC)CC)(N(CC)CC)N(CC)CC.C(C)N(CC)[Ti](N(CC)CC)(N(CC)CC)N(CC)CC AQYLBWKRGHXFDE-UHFFFAOYSA-N 0.000 claims description 2
- DWCMDRNGBIZOQL-UHFFFAOYSA-N dimethylazanide;zirconium(4+) Chemical compound [Zr+4].C[N-]C.C[N-]C.C[N-]C.C[N-]C DWCMDRNGBIZOQL-UHFFFAOYSA-N 0.000 claims description 2
- 238000003618 dip coating Methods 0.000 claims description 2
- UARGAUQGVANXCB-UHFFFAOYSA-N ethanol;zirconium Chemical compound [Zr].CCO.CCO.CCO.CCO UARGAUQGVANXCB-UHFFFAOYSA-N 0.000 claims description 2
- 150000002363 hafnium compounds Chemical class 0.000 claims description 2
- GVOLZAKHRKGRRM-UHFFFAOYSA-N hafnium(4+) Chemical compound [Hf+4] GVOLZAKHRKGRRM-UHFFFAOYSA-N 0.000 claims description 2
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 claims description 2
- LXWBMENBONGPSB-UHFFFAOYSA-J oxolane;tetrachlorotitanium Chemical compound C1CCOC1.C1CCOC1.Cl[Ti](Cl)(Cl)Cl LXWBMENBONGPSB-UHFFFAOYSA-J 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920000553 poly(phenylenevinylene) Polymers 0.000 claims description 2
- 229920001197 polyacetylene Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920002312 polyamide-imide Polymers 0.000 claims description 2
- 229920000767 polyaniline Polymers 0.000 claims description 2
- 229920001230 polyarylate Polymers 0.000 claims description 2
- 229920002480 polybenzimidazole Polymers 0.000 claims description 2
- 229920001083 polybutene Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920001601 polyetherimide Polymers 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 229920006324 polyoxymethylene Polymers 0.000 claims description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 2
- 229920006375 polyphtalamide Polymers 0.000 claims description 2
- 229920000128 polypyrrole Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 229920000123 polythiophene Polymers 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VUWPOFFYSGYZQR-UHFFFAOYSA-L tert-butylcyclopentane;dichlorotitanium Chemical compound Cl[Ti]Cl.CC(C)(C)[C]1[CH][CH][CH][CH]1.CC(C)(C)[C]1[CH][CH][CH][CH]1 VUWPOFFYSGYZQR-UHFFFAOYSA-L 0.000 claims description 2
- 235000010215 titanium dioxide Nutrition 0.000 claims description 2
- WOZZOSDBXABUFO-UHFFFAOYSA-N tri(butan-2-yloxy)alumane Chemical compound [Al+3].CCC(C)[O-].CCC(C)[O-].CCC(C)[O-] WOZZOSDBXABUFO-UHFFFAOYSA-N 0.000 claims description 2
- MYWQGROTKMBNKN-UHFFFAOYSA-N tributoxyalumane Chemical compound [Al+3].CCCC[O-].CCCC[O-].CCCC[O-] MYWQGROTKMBNKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims 2
- DPSOUODMTOWXTB-UHFFFAOYSA-N CC1=C(C)C(C)([Ti])C(C)=C1C Chemical compound CC1=C(C)C(C)([Ti])C(C)=C1C DPSOUODMTOWXTB-UHFFFAOYSA-N 0.000 claims 1
- 239000004962 Polyamide-imide Substances 0.000 claims 1
- HMTIYOSDNUJYPV-UHFFFAOYSA-L [Cl-].[Cl-].C(C)(C)C1(C=CC=C1)[Ti+2]C1(C=CC=C1)C(C)C Chemical compound [Cl-].[Cl-].C(C)(C)C1(C=CC=C1)[Ti+2]C1(C=CC=C1)C(C)C HMTIYOSDNUJYPV-UHFFFAOYSA-L 0.000 claims 1
- AYSYTHDGPPKHIU-UHFFFAOYSA-N bis(oxomethylidene)titanium;cyclopenta-1,3-diene Chemical compound C1C=CC=[C-]1.C1C=CC=[C-]1.O=C=[Ti]=C=O AYSYTHDGPPKHIU-UHFFFAOYSA-N 0.000 claims 1
- GOVWJRDDHRBJRW-UHFFFAOYSA-N diethylazanide;zirconium(4+) Chemical compound [Zr+4].CC[N-]CC.CC[N-]CC.CC[N-]CC.CC[N-]CC GOVWJRDDHRBJRW-UHFFFAOYSA-N 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 150000002736 metal compounds Chemical class 0.000 claims 1
- 150000002825 nitriles Chemical class 0.000 claims 1
- 229920000306 polymethylpentene Polymers 0.000 claims 1
- 239000011116 polymethylpentene Substances 0.000 claims 1
- 229920001955 polyphenylene ether Polymers 0.000 claims 1
- LGQXXHMEBUOXRP-UHFFFAOYSA-N tributyl borate Chemical compound CCCCOB(OCCCC)OCCCC LGQXXHMEBUOXRP-UHFFFAOYSA-N 0.000 claims 1
- 239000010410 layer Substances 0.000 description 97
- 239000004065 semiconductor Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 13
- 229910021417 amorphous silicon Inorganic materials 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 229920001665 Poly-4-vinylphenol Polymers 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- WYYHZWGGPPBCMA-NSSKEBHHSA-J (e)-1,1,1-trifluoro-4-oxopent-2-en-2-olate;zirconium(4+) Chemical compound [Zr+4].CC(=O)\C=C(\[O-])C(F)(F)F.CC(=O)\C=C(\[O-])C(F)(F)F.CC(=O)\C=C(\[O-])C(F)(F)F.CC(=O)\C=C(\[O-])C(F)(F)F WYYHZWGGPPBCMA-NSSKEBHHSA-J 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
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- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/468—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
本発明に係るOTFTは、a)表面上にゲート電極が位置する基板と、b)ゲート電極と、c)前記ゲート電極上に位置し、i)高誘電率材料からなる第1層目の絶縁層と、ii)有機活性層の直下に位置し、有機活性層に親和的な絶縁性有機高分子からなる第2層目の絶縁層とを含む多層構造のゲート絶縁膜と、d)前記ゲート絶縁膜の上に形成された有機活性層からなる有機半導体層と、e)ソース/ドレイン電極とを備える。
(B)
各例において、ポリビニールブチラール(PVB)およびテトラブチルチタネート(Ti(OC4H9)4)を表1に示した組成比で混合し、得られた混合物をイソプロピルアルコールに溶解させて10〜20質量%の濃度の溶液を製造した。スピンコーティング法を用いて、アルミニウム基板上に前記溶液を塗布して厚さ2000Åのフィルムを形成し、70℃で1時間、さらに150℃で30分間熱硬化させて、第1層目の絶縁層を製造した。製造された第1層目の絶縁層上にアルミニウム基板を載置して金属−絶縁膜−金属構造のキャパシタ(capacitor)を製造し、これを用いて100kHzで絶縁性を測定した。その結果を表1に示す。
アルミニウムからなるゲート電極を設けたガラス基板の上に、製造例2と同様の方法で 第1層目の絶縁層を形成した。化学式3で表わされる重合体(以下、S1という)のシクロヘキサノン溶液(10質量%)を製造し、前記第1層目の絶縁層の上にスピンコーティングして厚さ5000Åのフィルムを形成した後、窒素雰囲気中で温度を100℃にして1時間ベーキングして合計厚さ700nmのゲート絶縁膜を形成した。製造されたゲート絶縁膜上に、OMBD(Organic molecular beam deposition)方式によって700Åの厚さにペンタセンの有機活性層を形成した。有機活性層の形成は、真空度2×10-6Torr、基板温度80℃、成膜速度0.3Å/secの条件下で行った。前記製造された有機活性層の上に、チャネル長さ100μm、チャネル幅1mmのシャドーマスクを用いてトップコンタクト(top contact)方式によってソース/ドレイン電極を形成してOTFTを製造した。製造されたOTFTの単位面積当たり静電容量C0(nF/単位面積)、しきい値電圧、Ion/off、電荷移動度を、次のように測定した。結果を表2に示した。
電荷移動度は、下記飽和領域(saturation region)における電流式から求められる。すなわち、下記式に基づいて、(ISD)1/2とゲート電圧VGを変数としたグラフを得、その傾きから電荷移動度を求めた。
Ion/Ioffはオン状態での最大電流値とオフ状態での最小電流値(遮断漏洩電流(off-state leakage current))との比から求められ、下記の関係を有する。
製造例3と同一の組成、溶媒などを用いて同一の条件下で第1層目の絶縁層を形成したことを除いては、実施例1と同一の方法でOTFTを製造し、その特性を測定した。測定結果を表2に示した。
第1層目の絶縁層の厚さを300nmとし、第2層目の絶縁層の厚さを400nmとしたことを除いては実施例1と同一の方法を用いてOTFTを製造し、その特性を測定した。測定結果を表2に示した。
多層構造のゲート絶縁膜の代りに、S1のシクロヘキサノン溶液(10質量%)を製造し、7000Åの厚さにスピンコーティングした後、窒素雰囲気中、100℃で1時間ベーキングして得たフィルムをゲート絶縁膜として用いたことを除いては、実施例1と同一の方法によってOTFTを製造し、その特性を測定した。結果を表2に示した。
PVP(ポリビニールフェノール)をPGMEA(Propylene Glycol Methyl Ether Acetate)に溶解させた溶液(15質量%)を5000Åの厚さにスピンコーティングした後、窒素雰囲気および100℃で1時間ベーキングして得たフィルムをゲート絶縁膜として用いたことを除いては、実施例1と同一の方法によってOTFTを製造し、その特性を表2に示した。
多層構造のゲート絶縁膜の代りに、PVPをPGMEA(Propylene Glycol Methyl Ether Acetate)に溶解させた溶液(15質量%)を5000Åの厚さにスピンコーティングした後、窒素雰囲気および100℃で1時間ベーキングして得たフィルムをゲート絶縁膜として用いたことを除いては、実施例1と同一の方法によってOTFTを製造し、その特性を測定した。結果を表2に示した。
2 ゲート絶縁膜の第1層目の絶縁層
3 ゲート絶縁膜の第2層目の絶縁層
4 有機半導体層
5 ゲート電極
6、7 ソースおよびドレイン電極
Claims (8)
- 基板上に、ゲート電極、ゲート絶縁膜、有機活性層およびソース/ドレイン電極が、あるいはゲート電極、ゲート絶縁膜、ソース/ドレイン電極および有機活性層が、順次形成された有機薄膜トランジスタにおいて、前記ゲート絶縁膜は、i)高誘電率材料の第1層目の絶縁層と、ii)第2の絶縁性有機高分子の第2層目の絶縁層とを含み、前記第2層目の絶縁層は、有機活性層の直下に位置するように構成されている多層構造の絶縁膜であり、
前記第1層目の材料は、i)第1の絶縁性有機高分子と5以上の誘電定数を有する有機金属化合物との混合物、あるいはii)前記第1の絶縁性有機高分子と5以上の誘電定数を有する無機金属酸化物または強誘電性絶縁体のナノ粒子との混合物であり、
前記第2層目の絶縁層のための前記第2の絶縁性有機高分子は、下記化学式3、4、5または6で表わされる化合物からなる群より選ばれることを特徴とする有機薄膜トランジスタ。
- 前記ゲート絶縁膜を構成する各層が湿式工程によって形成されることを特徴とする請求項1に記載の有機薄膜トランジスタ。
- 前記基板が、プラスチック基板、ガラス基板、石英基板またはシリコン基板であることを特徴とする請求項1に記載の有機薄膜トランジスタ。
- 前記湿式工程が、スピンコーティング、ディップコーティング、プリンティング方式またはロールコーティングによって行われることを特徴とする請求項2に記載の有機薄膜トランジスタ。
- 前記第1の絶縁性有機高分子は、ポリエステル、ポリカーボネート、ポリビニールアルコール、ポリビニールブチラール、ポリアセタール、ポリアリレート、ポリアミド、ポリアミドイミド、ポリエーテルイミド、ポリフェニレンエーテル、ポリフェニレンスルファイド、ポリエーテルスルホン、ポリエーテルケトン、ポリフタルアミド、ポリエーテルニトリル、ポリエーテルスルホン、ポリベンズイミダゾール、ポリカルボジイミド、ポリシロキサン、ポリメチルメタクリレート、ポリメタクリルアミド、ニトリルゴム、アクリルゴム、ポリエチレンテトラフルオライド、エポキシ樹脂、フェノール樹脂、メラミン樹脂、ウレア樹脂、ポリブテン、ポリペンテン、エチレン−プロピレン共重合体、エチレン−ブテン−ジエン共重合体、ポリブタジエン、ポリイソプレン、エチレン−プロピレン−ジエン共重合体、ブチルゴム、ポリメチルペンテン、ポリスチレン、スチレン−ブタジエン共重合体、水添スチレン−ブタジエン共重合体、水添ポリイソプレン、水添ポリブタジエンおよびこれらの混合物からなる群より選ばれる少なくとも1種であることを特徴とする請求項1に記載の有機薄膜トランジスタ。
- 前記有機金属化合物は、チタニウム(IV)n−ブトキシド[titanium(IV)n-butoxide]、チタニウム(IV)t−ブトキシド[titanium(IV)t-butoxide]、チタニウム(IV)エトキシド[titanium(IV)ethoxide]、チタニウム(IV)2−エチルヘキソシド[titanium(IV)2-ethylhexoxide]、チタニウム(IV)イソ−プロポキシド[titanium(IV)isopropoxide]、チタニウム(IV)(ジ−イソ−プロポキシド)ビス(アセチルアセトネート)[titanium(IV)(di-isopropoxide)bis-(acetylacetonate)]、チタニウム(IV)オキサイドビス(アセチルアセトネート)[titanium(IV)oxide bis(acetylacetonate)]、トリクロロトリス(テトラヒドロフラン)チタニウム(III)[trichlorotris(tetrahydrofuran)titanium(III)]、トリス(2,2,6,6−テトラメチル−3,5−ヘプタンジオナト)チタニウム(III)[tris(2,2,6,6-tetramethyl-3,5-heptanedionato)titanium(III)]、(トリメチル)ペンタメチル−シクロペンタジエニルチタニウム(IV)[(trimethyl)pentamethyl cyclopentadienyl titanium(IV)]、ペンタメチルシクロペンタジエニルチタニウム(IV)トリクロライド [pentamethylcyclopentadienyltitanium(IV) trichloride]、ペンタメチルシクロ−ペンタジエニルチタニウム(IV)トリメトキシド[pentamethylcyclo-pentadienyltitanium(IV) trimethoxide]、テトラクロロビス(シクロヘキシルメルカプト)チタニウム(IV)[tetrachlorobis(cyclohexylmercapto)titanium(IV)]、テトラクロロビス(テトラヒドロフラン)チタニウム(IV)[tetrachlorobis(tetrahydrofuran)titanium(IV)]、テトラクロロジアミンチタニウム(IV)[tetrachlorodiamminetitanium(IV)]、テトラキス(ジエチルアミノ)チタニウム(IV)[tetrakis(diethylamino)titanium(IV)]、テトラキス(ジメチルアミノ)チタニウム(IV)[tetrakis(dimethylamino)titanium(IV)]、ビス(t−ブチルシクロペンタジエニル)チタニウムジクロライド[bis(t-butylcyclopentadienyl)titanium dichloride]、ビス(シクロペンタジエニル)ジカルボニルチタニウム(II)[bis(cyclopentadienyl)dicarbonyl titanium(II)]、ビス(シクロペンタジエニル)チタニウムジクロライド[bis(cyclopentadienyl)titanium dichloride]、ビス(エチルシクロペンタジエニル)チタニウムジクロライド[bis(ethylcyclopentadieny)titanium dichloride]、ビス(ペンタメチルシクロペンタジエニル)チタニウムジクロライド[bis(pentamethyl-cyclopentadienyl)titanium dichloride]、ビス(イソプロピルシクロペンタジエニル)チタニウムジクロライド[bis(isopropylchclopentadienyl)titanium dichloride]、トリス(2,2,6,6−テトラメチル−3,5−ヘプタンジオナト)オキソチタニウム(IV)[tris(2,2,6,6-tetramethyl-3,5-heptanedionato)oxotitanium(IV)]、クロロチタニウムトリイソプロポキシド[chlorotitanium triisopropoxide]、シクロペンタジエニルチタニウムトリクロライド[cyclopentadienyltitanium trichloride]、ジクロロビス(2,2,6,6−テトラメチル−3,5−ヘプタンジオナト)チタニウム(IV)[dichlorobis(2,2,6,6-tetramethyl-3,5-heptanedionato)titanium(IV)]、ジメチルビス(t−ブチルシクロペンタジエニル)チタニウム(IV)[dimethylbis(t-butylcyclopentadienyl)titanium(IV)]、ジ(イソプロポキシド)ビス(2,2,6,6−テトラメチル−3,5−ヘプタンジオナト)チタニウム(IV)[di(isopropoxide)bis(2,2,6,6-tetramethyl-3,5-heptanedionato)titanium(IV)]などのチタニウム系化合物、ジルコニウム(IV)n−ブトキシド[zirconium(IV)n-butoxide]、ジルコニウム(IV)t−ブトキシド[zirconium(IV)t-butoxide]、ジルコニウム(IV)エトキシド[zirconium(IV)ethoxide]、ジルコニウム(IV)イソプロポキシド[zirconium(IV)isopropoxide]、ジルコニウム(IV)n−プロポキシド[zirconium(IV)n-propoxide]、ジルコニウム(IV)(アセチルアセトネート)[zirconium(IV)acetylacetonate]、ジルコニウム(IV)ヘキサフルオロアセチルアセトネート[zirconium(IV)hexafluoroacetylacetonate]、ジルコニウム(IV)トリフルオロアセチルアセトネート[zirconium(IV)trifluoroacetylacetonate]、テトラキス(ジエチルアミノ)ジルコニウム[tetrakis(diethylamino)zirconium]、テトラキス(ジメチルアミノ)ジルコニウム[tetrakis(dimethylamino)zirconium]、テトラキス(2,2,6,6−テトラメチル−3,5−ヘプタンジオナト)ジルコニウム(IV)[tetrakis(2,2,6,6-tetramethyl-3,5-heptandionato)zirconium(IV)]、ジルコニウム(IV)サルフェートテトラヒドレート[zirconium(IV)sulfate tetrahydrate]、ハフニウム(IV)n−ブトキシド[hafnium(IV)n-butoxide]、ハフニウム(IV)t−ブトキシド[hafnium(IV)t-butoxide]、ハフニウム(IV)エトキシド[hafnium(IV)ethoxide]、ハフニウム(IV)イソプロポキシド[hafnium(IV)isopropoxide]、ハフニウム(IV)イソプロポキシドモノイソプロピレート[hafnium(IV)isopropoxide monoisopropylate]、ハフニウム(IV)アセチルアセトネート[hafnium(IV)acetylacetonate]、テトラキス(ジメチルアミノ)ハフニウム[tetrakis(dimethylamino)hafnium]などのジルコニウムあるいはハフニウム化合物、およびアルミニウムn−ブトキシド[aluminium n-butoxide]、アルミニウムt−ブトキシド[aluminium t-butoxide]、アルミニウムs−ブトキシド[aluminium s-butoxide]、アルミニウムエトキシド[aluminium ethoxide]、アルミニウムイソプロポキシド[aluminium isopropoxide]、アルミニウム(アセチルアセトネート[aluminium acetylacetonate])、アルミニウムヘキサフルオロアセチルアセトネート[aluminium hexaflouoroacetylacetonate]、アルミニウムトリフルオロアセチルアセトネート[aluminium trifluoroacetylacetonate]、トリス(2,2,6,6−テトラメチル−3,5−ヘプタンジオナト)アルミニウム[tris(2,2,6,6-tetramethyl-3,5-heptanedionato)aluminium]などのアルミニウム化合物およびこれらの2つ以上の混合物からなる群より選ばれる少なくとも1種であることを特徴とする請求項1に記載の有機薄膜トランジスタ。
- 前記無機金属酸化物のナノ粒子はTa2O5、Y2O3、TiO2、CeO2およびZrO2のナノ粒子であり、強前記誘電性絶縁体のナノ粒子はBST(Barium Strontium Titanate)、PbZrxTi1-xO3(PZT)、Bi4Ti3O12、BaMgF4、SrBi2(Ta1-xNbx)2O9、Ba(Zr1-xTix)O3(BZT)、BaTiO3、SrTiO3およびBi4Ti3O12のナノ粒子であり、ナノ粒子の直径は1〜100nmであることを特徴とする請求項1に記載の有機薄膜トランジスタ。
- 前記有機活性層は、ペンタセン(pentacene)、銅フタロシアニン(copper phthalocyanine)、ポリチオフェン(polythiophene)、ポリアニリン(polyaniline)、ポリアセチレン(polyacetylene)、ポリピロール(polypyrrole)、ポリフェニレンビニレン(polyphenylene vinylene)またはこれらの誘導体からなる群より選ばれる少なくとも1種で形成されていることを特徴とする請求項1に記載の有機薄膜トランジスタ。
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- 2004-07-02 CN CNA2004100621484A patent/CN1577912A/zh active Pending
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KR102221385B1 (ko) * | 2016-10-05 | 2021-03-02 | 한국전기연구원 | 아민계 폴리머를 포함한 실리콘 카바이드 다이오드 제조방법 |
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US7005674B2 (en) | 2006-02-28 |
EP1494298A3 (en) | 2006-06-14 |
US20050001210A1 (en) | 2005-01-06 |
JP2005026698A (ja) | 2005-01-27 |
KR20050004565A (ko) | 2005-01-12 |
CN1577912A (zh) | 2005-02-09 |
KR100995451B1 (ko) | 2010-11-18 |
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