JP2014078704A - 表示装置 - Google Patents
表示装置 Download PDFInfo
- Publication number
- JP2014078704A JP2014078704A JP2013193059A JP2013193059A JP2014078704A JP 2014078704 A JP2014078704 A JP 2014078704A JP 2013193059 A JP2013193059 A JP 2013193059A JP 2013193059 A JP2013193059 A JP 2013193059A JP 2014078704 A JP2014078704 A JP 2014078704A
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- layer
- semiconductor layer
- oxide layer
- oxide semiconductor
- 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.)
- Granted
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 284
- 229910052738 indium Inorganic materials 0.000 claims abstract description 31
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 38
- 229910052710 silicon Inorganic materials 0.000 claims description 35
- 239000010703 silicon Substances 0.000 claims description 35
- 239000013078 crystal Substances 0.000 claims description 24
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- 229910052719 titanium Inorganic materials 0.000 claims description 15
- 229910052726 zirconium Inorganic materials 0.000 claims description 14
- 229910052718 tin Inorganic materials 0.000 claims description 12
- 229910052684 Cerium Inorganic materials 0.000 claims description 11
- 229910052746 lanthanum Inorganic materials 0.000 claims description 11
- 229910052735 hafnium Inorganic materials 0.000 claims description 10
- 229910052779 Neodymium Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000009413 insulation Methods 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 702
- 239000000758 substrate Substances 0.000 description 129
- 238000010438 heat treatment Methods 0.000 description 95
- 239000007789 gas Substances 0.000 description 85
- 229910052760 oxygen Inorganic materials 0.000 description 72
- 239000001301 oxygen Substances 0.000 description 72
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 68
- 239000011701 zinc Substances 0.000 description 67
- 125000004429 atom Chemical group 0.000 description 66
- 230000015572 biosynthetic process Effects 0.000 description 65
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- 238000000034 method Methods 0.000 description 49
- 229910052581 Si3N4 Inorganic materials 0.000 description 47
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 47
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- 230000002829 reductive effect Effects 0.000 description 39
- 239000012535 impurity Substances 0.000 description 36
- 239000000523 sample Substances 0.000 description 34
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- 230000008021 deposition Effects 0.000 description 26
- 239000001257 hydrogen Substances 0.000 description 23
- 229910052739 hydrogen Inorganic materials 0.000 description 23
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 22
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- 230000006870 function Effects 0.000 description 21
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- 239000004973 liquid crystal related substance Substances 0.000 description 20
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 16
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- 238000004458 analytical method Methods 0.000 description 15
- 125000004430 oxygen atom Chemical group O* 0.000 description 15
- 150000002500 ions Chemical group 0.000 description 14
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 13
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- 239000011261 inert gas Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 11
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- 238000010521 absorption reaction Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 9
- 229910052733 gallium Inorganic materials 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- 239000002156 adsorbate Substances 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 7
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- 239000011651 chromium Substances 0.000 description 6
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- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 6
- 238000001451 molecular beam epitaxy Methods 0.000 description 6
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
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- 229910052727 yttrium Inorganic materials 0.000 description 6
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 229910001195 gallium oxide Inorganic materials 0.000 description 5
- SHXXPRJOPFJRHA-UHFFFAOYSA-K iron(iii) fluoride Chemical compound F[Fe](F)F SHXXPRJOPFJRHA-UHFFFAOYSA-K 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 229910044991 metal oxide Inorganic materials 0.000 description 5
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- -1 oxygen cations Chemical class 0.000 description 5
- 230000036961 partial effect Effects 0.000 description 5
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 5
- 238000002042 time-of-flight secondary ion mass spectrometry Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 4
- 229910000423 chromium oxide Inorganic materials 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 229910052732 germanium Inorganic materials 0.000 description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 4
- 238000012905 input function Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 150000004767 nitrides Chemical class 0.000 description 4
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- 238000012545 processing Methods 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
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- 238000003776 cleavage reaction Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 3
- 229910000449 hafnium oxide Inorganic materials 0.000 description 3
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 3
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 3
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
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- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
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- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
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Abstract
【解決手段】酸化物層および酸化物半導体層を含む多層膜と、多層膜と接して設けられたゲート絶縁膜と、ゲート絶縁膜を介して多層膜と重ねて設けられたゲート電極と、を有し、酸化物半導体層はインジウムを含み、酸化物半導体層は、酸化物層と接して設けられ、酸化物層は、酸化物半導体層よりもエネルギーギャップが大きく、かつインジウムを含む表示装置である。
【選択図】図1
Description
10a 成膜室
10b 成膜室
10c 成膜室
11 基板供給室
12a ロードロック室
12b ロードロック室
13 搬送室
14 カセットポート
15 基板加熱室
20a 成膜室
20b 成膜室
20c 成膜室
20d 成膜室
21 基板供給室
23 搬送室
24 カセットポート
25 基板加熱室
32 ターゲット
34 ターゲットホルダ
54 精製機
58a クライオポンプ
58b クライオポンプ
58c ターボ分子ポンプ
58d クライオポンプ
58e クライオポンプ
58f クライオポンプ
59 真空ポンプ
59a 真空ポンプ
59b 真空ポンプ
59c 真空ポンプ
60 マスフローコントローラ
62 ガス加熱機構
66 クライオトラップ
100 基板
104 ゲート電極
106 多層膜
106a 酸化物層
106b 酸化物半導体層
106c 酸化物層
106d ソース領域
106e ドレイン領域
112 ゲート絶縁膜
116a ソース電極
116b ドレイン電極
118 保護絶縁膜
118a 第1の酸化シリコン層
118b 第2の酸化シリコン層
118c 窒化シリコン層
119 多層膜
119a 酸化物層
119b 酸化物層
119c 酸化物層
200 基板
202 下地絶縁膜
204 ゲート電極
206 多層膜
206a 酸化物層
206b 酸化物半導体層
206c 酸化物層
212 ゲート絶縁膜
216a ソース電極
216b ドレイン電極
218 保護絶縁膜
700 画素部
701 画素
703 トランジスタ
704 走査線駆動回路
705 容量素子
706 信号線駆動回路
707 走査線
708 液晶素子
709 信号線
713 画素電極
715 容量線
717 開口
719 多層膜
721 画素電極
723 開口
725 導電膜
750 対向基板
752 遮光膜
754 対向電極
755 配線
756 絶縁膜
758 絶縁膜
760 液晶層
796 画素
797 容量素子
798 多層膜
816 絶縁膜
818 反射電極
820 発光層
822 陰極
824 隔壁
826 隔壁
830 発光素子
831 発光素子
833 マイクロキャビティ層
834 マイクロキャビティ層
850 トランジスタ
860 封止基板
862 下地層
864 ブラックマトリクス
865 青色カラーフィルター
866 緑色カラーフィルター
867 赤色カラーフィルター
903 画素
904 画素
906 フォトセンサ
907 走査線
908 信号線
909 選択線
910 信号線
911 フォトセンサ出力信号線
925 リセット線
926 グランド線
927 走査線
928 電源供給線
951 アモルファスシリコン層
952 電極
953 層間絶縁膜
954 電極
955 配線
962 電源線
964 センサ素子
965 トランジスタ
966 トランジスタ
967 トランジスタ
968 トランジスタ
9300 筐体
9301 ボタン
9302 マイクロフォン
9303 表示部
9304 スピーカ
9305 カメラ
9310 筐体
9311 表示部
9320 筐体
9321 ボタン
9322 マイクロフォン
9323 表示部
9630 筐体
9631a 表示部
9631b 表示部
9633 留め具
9638 操作スイッチ
Claims (19)
- 酸化物層および酸化物半導体層を含む多層膜と、
前記多層膜と接して設けられたゲート絶縁膜と、
前記ゲート絶縁膜を介して前記多層膜と重ねて設けられたゲート電極と、を有し、
前記酸化物半導体層はインジウムを含み、
前記酸化物半導体層は、前記酸化物層と接して設けられ、
前記酸化物層は、前記酸化物半導体層よりもエネルギーギャップが大きく、かつインジウムを含むことを特徴とする表示装置。 - 酸化物層および酸化物半導体層を含む多層膜と、
前記多層膜と接して設けられたゲート絶縁膜と、
前記ゲート絶縁膜を介して前記多層膜と重ねて設けられたゲート電極と、を有し、
前記酸化物半導体層はインジウムを含み、
前記酸化物半導体層は、前記酸化物層と接して設けられ、
前記酸化物層は、前記酸化物半導体層よりも伝導帯下端のエネルギーが真空準位に近く、かつインジウムを含むことを特徴とする表示装置。 - 請求項2において、
前記酸化物層は、伝導帯下端のエネルギーが前記酸化物半導体層よりも0.05eV以上2eV以下真空準位に近いことを特徴とする表示装置。 - 請求項1乃至請求項3のいずれか一において、
前記酸化物半導体層にチャネルが形成されることを特徴とする表示装置。 - 請求項1乃至請求項4のいずれか一において、
前記酸化物半導体層の側端部に接して設けられたソース電極およびドレイン電極を有することを特徴とする表示装置。 - 請求項1乃至請求項5のいずれか一において、
前記酸化物層は結晶質であり、
前記酸化物層に含まれる結晶部のc軸は、前記酸化物層の表面の法線ベクトルに平行であることを特徴とする表示装置。 - 請求項1乃至請求項6のいずれか一において、
前記酸化物半導体層および前記酸化物層は、In−M−Zn酸化物(MはAl、Ti、Ga、Y、Zr、Sn、La、Ce、NdまたはHf)であり、
前記酸化物層は、前記酸化物半導体層よりもMに対するInの原子数比が小さく、Inに対するMの原子数比が大きいことを特徴とする表示装置。 - 請求項1乃至請求項6のいずれか一において、
前記酸化物半導体層は、In−Zn酸化物、In−Ga酸化物またはIn−Ga−Zn酸化物であることを特徴とする表示装置。 - 請求項1乃至請求項8のいずれか一において、
前記酸化物半導体層の厚さが3nm以上200nm以下であり、前記酸化物層の厚さが3nm以上50nm以下であることを特徴とする表示装置。 - 請求項1乃至請求項9のいずれか一において、
前記酸化物層の厚さが3nm以上40nm以下であることを特徴とする表示装置。 - 請求項1乃至請求項10のいずれか一において、
前記酸化物半導体層のシリコン濃度が、5×1018atoms/cm3未満であることを特徴とする表示装置。 - 請求項1乃至請求項11のいずれか一において、
前記酸化物半導体層の炭素濃度が、5×1018atoms/cm3未満であることを特徴とする表示装置。 - 第1の酸化物層、第2の酸化物層および酸化物半導体層を含む多層膜と、
前記多層膜と接して設けられたゲート絶縁膜と、
前記ゲート絶縁膜を介して前記多層膜と重ねて設けられたゲート電極と、を有し、
前記酸化物半導体層はインジウムを含み、
前記酸化物半導体層は、前記第1の酸化物層と接して設けられ、
前記第1の酸化物層は、前記酸化物半導体層よりもエネルギーギャップが大きく、かつインジウムを含み、
前記酸化物半導体層は、前記第1の酸化物層と対向して前記第2の酸化物層と接して設けられ、
前記第2の酸化物層は、前記酸化物半導体層よりもエネルギーギャップが大きく、かつインジウムを含むことを特徴とする表示装置。 - 第1の酸化物層、第2の酸化物層および酸化物半導体層を含む多層膜と、
前記多層膜と接して設けられたゲート絶縁膜と、
前記ゲート絶縁膜を介して前記多層膜と重ねて設けられたゲート電極と、を有し、
前記酸化物半導体層はインジウムを含み、
前記酸化物半導体層は、前記第1の酸化物層と接して設けられ、
前記第1の酸化物層は、前記酸化物半導体層よりも伝導帯下端のエネルギーが真空準位に近く、かつインジウムを含み、
前記酸化物半導体層は、前記第1の酸化物層と対向して前記第2の酸化物層と接して設けられ、
前記第2の酸化物層は、前記酸化物半導体層よりも伝導帯下端のエネルギーが真空準位に近く、かつインジウムを含むことを特徴とする表示装置。 - 請求項14において、
前記第1の酸化物層および前記第2の酸化物層は、伝導帯下端のエネルギーが前記酸化物半導体層よりも0.05eV以上2eV以下真空準位に近いことを特徴とする表示装置。 - 請求項13乃至請求項15のいずれか一において、
前記第1の酸化物層は結晶質であり、
前記第1の酸化物層に含まれる結晶部のc軸は、前記第1の酸化物層の表面の法線ベクトルに平行であることを特徴とする表示装置。 - 請求項13乃至請求項16のいずれか一において、
前記酸化物半導体層、前記第1の酸化物層および前記第2の酸化物層は、In−M−Zn酸化物(MはAl、Ti、Ga、Y、Zr、Sn、La、Ce、NdまたはHf)であり、
前記第1の酸化物層および前記第2の酸化物層は、前記酸化物半導体層よりもMに対するInの原子数比が小さく、Inに対するMの原子数比が大きいことを特徴とする表示装置。 - 請求項13乃至請求項17のいずれか一において、
前記酸化物半導体層の厚さが3nm以上200nm以下であり、前記第1の酸化物層および前記第2の酸化物層の厚さが3nm以上50nm以下であることを特徴とする表示装置。 - 請求項13乃至請求項18のいずれか一において、
前記第1の酸化物層および前記第2の酸化物層の厚さが3nm以上40nm以下であることを特徴とする表示装置。
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US9331100B2 (en) | 2016-05-03 |
WO2014046222A1 (en) | 2014-03-27 |
US20140091301A1 (en) | 2014-04-03 |
TW201417300A (zh) | 2014-05-01 |
JP6290565B2 (ja) | 2018-03-07 |
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