JP4258536B2 - 結晶化金属酸化物薄膜の製造方法 - Google Patents
結晶化金属酸化物薄膜の製造方法 Download PDFInfo
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- JP4258536B2 JP4258536B2 JP2006219834A JP2006219834A JP4258536B2 JP 4258536 B2 JP4258536 B2 JP 4258536B2 JP 2006219834 A JP2006219834 A JP 2006219834A JP 2006219834 A JP2006219834 A JP 2006219834A JP 4258536 B2 JP4258536 B2 JP 4258536B2
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- 239000010409 thin film Substances 0.000 title claims description 51
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 150000004706 metal oxides Chemical class 0.000 title claims description 25
- 229910044991 metal oxide Inorganic materials 0.000 title claims description 24
- 239000010408 film Substances 0.000 claims description 41
- 239000000758 substrate Substances 0.000 claims description 40
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 239000011521 glass Substances 0.000 claims description 15
- 230000001678 irradiating effect Effects 0.000 claims description 12
- -1 lanthanum aluminate Chemical class 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 9
- 238000002425 crystallisation Methods 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010453 quartz Substances 0.000 claims description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 238000000197 pyrolysis Methods 0.000 claims description 5
- 150000004703 alkoxides Chemical class 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052765 Lutetium Inorganic materials 0.000 claims description 3
- 229910052772 Samarium Inorganic materials 0.000 claims description 3
- 229910052771 Terbium Inorganic materials 0.000 claims description 3
- 229910052775 Thulium Inorganic materials 0.000 claims description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000004544 sputter deposition Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 2
- HZMPWQGNGPZWRV-UHFFFAOYSA-N aluminum strontium lanthanum(3+) oxygen(2-) tantalum(5+) Chemical compound [O-2].[Ta+5].[Al+3].[Sr+2].[La+3] HZMPWQGNGPZWRV-UHFFFAOYSA-N 0.000 claims description 2
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 claims description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 238000001451 molecular beam epitaxy Methods 0.000 claims description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims description 2
- 125000002524 organometallic group Chemical group 0.000 claims 2
- 150000002894 organic compounds Chemical class 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000001771 vacuum deposition Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 13
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 13
- 150000002902 organometallic compounds Chemical class 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 230000005284 excitation Effects 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 239000002243 precursor Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000011133 lead Substances 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 229910052691 Erbium Inorganic materials 0.000 description 2
- 208000016169 Fish-eye disease Diseases 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052769 Ytterbium Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005566 electron beam evaporation Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005118 spray pyrolysis Methods 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 1
- AGOMHFKGCMKLDA-UHFFFAOYSA-K 2-ethylhexanoate;yttrium(3+) Chemical compound [Y+3].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O AGOMHFKGCMKLDA-UHFFFAOYSA-K 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 238000000103 photoluminescence spectrum Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 229910052713 technetium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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- H01G4/002—Details
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- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
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Description
しかしながら、従来の蛍光体薄膜は、バインダーを用いて成型するため、電子線照射によるガスの放出により高い発光効率を維持できない問題があった。このような問題の解決法の一つとして、ガラス基板上に希土類系蛍光体薄膜を直接製造することで、特性の改善が検討されている。
その代表的なY2O3薄膜の作製方法としては、これまでに、電子線蒸着(非特許文献1)、スパッタ法(特許文献1)、ゾルゲル法(特許文献2)、噴霧熱分解法(非特許文献2)が報告されている。
しかしながら、いずれの手法においても500℃〜1000℃の高温の基板加熱処理を含むため有機基板やガラスなど耐熱性の低い材料上への作製が困難であった。
また、Y2O3などの希土類酸化物は、誘電率が大きいため、DRAMのキャパシタとして使うことができる(特許文献3)。通常、下部電極にはシリコンが用いられるため、酸化反応が起こらない低温で薄膜を作製することが望ましい。
同様にシリコンや単結晶基板の上にY2O3などの希土類酸化物膜を中間層として用いることができる。(特許文献4)では、CeO2(酸化セリウム)タブレットを用い、電子ビーム蒸着法で基板温度800℃においてCeO2エピタキシャル層をシリコン基板上に作製している。しかしながら有機材料やアルミ配線を含む読み出し回路などが有る場合は、溶融が起こるためデバイスの作製が困難である。以上のように、希土類薄膜の応用は多岐にわたり産業上極めて重要な材料であるため、500℃以下の低温結晶成長技術の開発により、新しいデバイスの作製が可能となる。
これまでにある種の金属酸化物膜を作製する方法として、金属有機酸塩ないし有機金属化合物MmRn(ただしM=Si、Ge、Sn、Pbの4b族元素、Cr、Mo、Wの6a族元素、Mn、Tc、Reの7a族元素:R=CH3、C2H5、C3H7、C4H9などのアルキル基、あるいはCH3COO−、C2H5COO−、C3H7COO−、C4H9COO−などのカルボキシル基、あるいはCOのカルボニル基:m、nは整数)を可溶性溶媒に溶かし、あるいは液体のものはそのまま、該溶液を基板上に分散塗布した後、酸素雰囲気下でエキシマレーザを照射することを特徴とする、エキシマレーザによる金属酸化物および金属酸化物薄膜の製造方法は知られている(特許文献5)。
ここでは、金属有機化合物を溶媒に溶解させて溶液状とし、これを基板に塗布した後に、乾燥させ、波長400nm以下のレーザ光、例えば、ArF、KrF、XeCl、XeF、F2から選ばれるエキシマレーザを用いて照射することにより基板上に金属酸化物を形成することを特徴とする金属酸化物の製造方法が記載され、波長400nm以下のレーザ光の照射を、複数段階で行い、最初の段階の照射は金属有機化合物を完全に分解させるに至らない程度の弱い照射で行い、次に酸化物にまで変化させることができる強い照射を行うことも記載されている。また、金属有機化合物が異なる金属からなる2種以上の化合物であり、得られる金属酸化物が異なる金属からなる複合金属酸化物であって、金属有機酸塩の金属が、鉄、インジウム、錫、ジルコニウム、コバルト、鉄、ニッケル、鉛から成る群から選ばれるものであることも知られている。
ここでは、被塗布物の表面に形成された薄膜に対して光を照射する光源が、ArFエキシマレーザ、KrFエキシマレーザ、XeClエキシマレーザ、XeFエキシマレーザ、YAGレーザの3倍波光またはYAGレーザの4倍波光が用いられ、被塗布物の表面に塗布される前駆体塗布液が、Laのアルカノールアミン配位化合物と、Mnのカルボン酸塩と、Mの金属またはアルコキシドとを、炭素数が1〜4である一級アルコール中で混合させ反応させて調整することが記載されている。
また、本発明では、酸化物が蛍光体物質を形成する金属として、希土類系元素であるY、Dy, Sm, Gd, Ho, Eu, Tm, Tb, Er, Ce Pr, Yb, La, Nd, Lu,のうち少なくとも一種類の元素を含む物質母材と発光中心として少なくとも一種のCe、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb, Luを添加した先駆体膜を用いることが出来る。
また、あらかじめ、In2O3,SnO2,ZnOおよび金属から選ばれる1種以上の導電物質を含んだ薄膜にも効果的である。
さらに本発明は、支持体として,有機基板、ガラス基板、チタン酸ストロンチウム(SrTiO3)、ランタンアルミネート(LaAlO3)、酸化マグネシウム(MgO)、酸化ランタンストロンチウムタンタルアルミニウム((LaxSr1-x)(AlxTa1-x)O3)、ネオジムガレート(NdGaO3)、イットリウムアルミネート(YAlO3)単結晶、酸化アルミニウム(Al2O3) 、イットリア安定化ジルコニア((Zr,Y)O2, YSZ)基板から選ばれる1種等を用いることが出来る。
また、本発明では、金属有機化合物が、β−ジケトナト、長鎖のアルコキシド(Cが6以上)、ハロゲンを含んでもよい有機酸塩から選ばれる1種以上を用いることが好ましい。さらに本発明では、紫外光としてレーザ及び又はランプ光を用いることができる。
目的に応じて、所定の工程途中や各工程の前後を選ぶことが出来る。また、金属の有機化合物溶液を基板にスピンコートし、溶媒除去のため恒温槽中130℃で乾燥後、レーザチャンバ内の試料ホルダーに試料を装着し、室温でレーザ照射することもできる。
1.Y2O3膜を生成する金属有機化合物の溶液を支持体上に塗布乾燥させる工程後、金属の有機化合物中の有機成分を熱分解させる仮焼成工程中に、紫外光(レーザ、ランプ光)を照射することにより、低温で結晶化が促進されることが判明した。
図2に、エキシマレーザによるY2O3膜の結晶化反応の経時変化をX線回折測定より調べた結果を示す。500℃の熱処理工程では、Y2O3に起因するピークはほとんど観測されないが、ArFエキシマレーザによる100mJ/cm2, 1Hz, 100パルスの照射により結晶化しており、レーザ照射がY2O3の結晶化に有効であることがわかった。
図3に塗布熱分解法および光照射法により作製した膜のフォトルミネッセンスを測定した結果を示す。図からわかるように、高温で熱処理した場合と比べて、レーザ照射した場合の発光強度が最も高いことがわかる。
本発明の実施例で使用した基板は、
石英基板および無アルカリガラス基板であり、原料溶液は、
2エチルヘキサン酸イットリウム溶液に2エチルヘキサンユーロピウム溶液を用いた。紫外光照射は、KrFエキシマレーザ、ArFエキシマレーザ、XeClエキシマレーザを用いた。
YI溶液を石英基板に3000rpm; 10秒間でスピンコートし、400℃で10分間加熱した。その後、基板温度を400℃に保ち、大気中で193nmのパルスレーザをフルエンス:100mJ/cm2; 1Hz; 100パルス照射した。このようにして作製した膜厚約200nmのY2O3:Eu膜について照射部のみ紫外励起による高い発光強度を示した。
実施例1において、レーザ光の波長を248nmとした場合、結晶化反応は起こらなかった。また、照射部は実施例1のArFレーザ照射部に比べて1/4の発光強度しか得られなかった。
実施例1において、レーザ光の波長を308nmとした場合、結晶化反応は起こらなかった。また、照射部は実施例1のArFレーザ照射部に比べて1/4の発光強度しか得られなかった。
実施例1においてレーザを照射しない場合、照射部は実施例1のArFレーザ照射部に比べて1/4の発光強度しか得られなかった。
実施例1において、加熱温度を200℃とした場合、照射部は実施例1のArFレーザ照射部に比べて1/4の発光強度しか得られなかった。
YI溶液を石英基板に3000rpm; 10秒間でスピンコートし、400℃で10分間加熱した。その後、750度で60分間加熱した。その結果、図に示すように結晶化反応は起きたが、生成膜は、実施例1のArFレーザ照射部に比べて1/4の発光強度しか得られなかった。
YI溶液を無アルカリガラスに3000rpm; 10秒間でスピンコートし、400℃で10分間加熱した。その結果、生成膜は、レーザ照射部に比べて1/4の発光強度しか得られなかった。
YI溶液をITO/石英基板に3000rpm; 10秒間でスピンコートし、400℃で10分間加熱した。その結果、生成膜はレーザ照射部に比べて1/4の発光強度しか得られなかった。
Claims (6)
- シリコン、化合物半導体、有機基板、石英、無アルカリガラス、チタン酸ストロンチウム(SrTiO3)、ランタンアルミネート(LaAlO3)、酸化マグネシウム(MgO)、酸化ランタンストロンチウムタンタルアルミニウム((LaxSr1−x)(AlxTa1−x)O3)、ネオジムガレート(NdGaO3)、イットリウムアルミネート(YAlO3)単結晶、酸化アルミニウム(Al2O3) 、イットリア安定化ジルコニア((Zr,Y)O2, YSZ)及び金属から選択した1種の基板上に形成された Y、Dy、Sm、Gd、Ho、Eu、Tm、Tb、Er、Ce、Pr、Yb、Nd、Luからなる群より選ばれる少なくとも一種類の希土類金属元素を含む有機金属薄膜または金属酸化物膜を、350〜450℃の温度に保持し、波長200nm以下の紫外光を照射しつつ、結晶化を行うことを特徴とする希土類元素を含有する結晶化金属酸化物薄膜の製造方法。
- 有機金属薄膜または金属酸化物膜は、スパッタリング、MBE,真空蒸着、CVD、化学溶液法(塗布熱分解法、スプレー法)のいずれかにより作製されることを特徴とする請求項1に記載した結晶化金属酸化物薄膜の製造方法。
- 有機金属薄膜の有機化合物が、β−ジケトナト、炭素数6以上の長鎖のアルコキシド、ハロゲンを含んでもよい有機酸塩から選ばれる1種である請求項1又は請求項2に記載した結晶化金属酸化物薄膜の製造方法。
- 紫外光がパルスレーザである請求項1ないし請求項3のいずれか一項に記載した結晶化金属酸化物薄膜の製造方法。
- 有機金属薄膜を室温で周波数10Hz以上とフルエンス30mJ/cm2以下の紫外レーザにより照射後、フルエンス30mJ/cm2以上のレーザ光を複数のフルエンスで照射することを特徴とする請求項1ないし請求項4のいずれか一項に記載した結晶化金属酸化物薄膜の製造方法。
- 基板が、その上にIn2O3, SnO2,ZnOから選ばれる1種以上を含む導電性を有する中間層を有する基板である請求項1ないし請求項5のいずれか一項に記載した結晶化金属酸化物薄膜の製造方法。
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US20080044590A1 (en) * | 2006-08-21 | 2008-02-21 | National Institute Of Advanced Industrial Science And Technology | Manufacturing Method of Phosphor Film |
WO2008027896A2 (en) * | 2006-08-29 | 2008-03-06 | Moxtronics Inc. | Improved films and structures for metal oxide semiconductor light emitting devices and methods |
US7606448B2 (en) * | 2007-03-13 | 2009-10-20 | Micron Technology, Inc. | Zinc oxide diodes for optical interconnections |
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2006
- 2006-08-11 JP JP2006219834A patent/JP4258536B2/ja not_active Expired - Fee Related
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2007
- 2007-08-09 US US11/836,387 patent/US7771531B2/en not_active Expired - Fee Related
- 2007-08-10 KR KR1020070080885A patent/KR100910145B1/ko active IP Right Grant
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US7771531B2 (en) | 2010-08-10 |
KR100910145B1 (ko) | 2009-07-30 |
KR20080014707A (ko) | 2008-02-14 |
US20080035898A1 (en) | 2008-02-14 |
JP2008044803A (ja) | 2008-02-28 |
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