JP2013243352A - 酸化物半導体膜および半導体装置 - Google Patents
酸化物半導体膜および半導体装置 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 308
- 239000011701 zinc Substances 0.000 claims description 22
- 239000000969 carrier Substances 0.000 claims description 10
- 229910052733 gallium Inorganic materials 0.000 claims description 8
- 229910052738 indium Inorganic materials 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052735 hafnium Inorganic materials 0.000 claims description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 6
- 229910052718 tin Inorganic materials 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 60
- 238000000103 photoluminescence spectrum Methods 0.000 abstract description 54
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- 239000001301 oxygen Substances 0.000 description 39
- 229910052760 oxygen Inorganic materials 0.000 description 39
- 238000005424 photoluminescence Methods 0.000 description 38
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- 229910052710 silicon Inorganic materials 0.000 description 35
- 239000010703 silicon Substances 0.000 description 34
- 239000013078 crystal Substances 0.000 description 33
- 239000004973 liquid crystal related substance Substances 0.000 description 27
- 238000004458 analytical method Methods 0.000 description 23
- 238000010586 diagram Methods 0.000 description 23
- 230000006870 function Effects 0.000 description 23
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- 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 22
- 239000002356 single layer Substances 0.000 description 22
- 229910052581 Si3N4 Inorganic materials 0.000 description 19
- 238000011156 evaluation Methods 0.000 description 19
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- 239000001257 hydrogen Substances 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 17
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- 238000004519 manufacturing process Methods 0.000 description 13
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- 125000004429 atom Chemical group 0.000 description 12
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- 229910001195 gallium oxide Inorganic materials 0.000 description 11
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- 229910000449 hafnium oxide Inorganic materials 0.000 description 11
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 11
- 239000000395 magnesium oxide Substances 0.000 description 11
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 11
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 11
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 11
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- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 11
- 229910001936 tantalum oxide Inorganic materials 0.000 description 11
- 229910001928 zirconium oxide Inorganic materials 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 125000004430 oxygen atom Chemical group O* 0.000 description 10
- 229910052719 titanium Inorganic materials 0.000 description 10
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 8
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910021417 amorphous silicon Inorganic materials 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 3
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 3
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 3
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229910052594 sapphire Inorganic materials 0.000 description 3
- 239000010980 sapphire Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
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- 102100040844 Dual specificity protein kinase CLK2 Human genes 0.000 description 2
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- 230000008901 benefit Effects 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
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- 238000003795 desorption Methods 0.000 description 2
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- 150000002484 inorganic compounds Chemical class 0.000 description 2
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- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
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- 101000749294 Homo sapiens Dual specificity protein kinase CLK1 Proteins 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
-
- 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
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1222—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or crystalline structure of the active layer
- H01L27/1225—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or crystalline structure of the active layer with semiconductor materials not belonging to the group IV of the periodic table, e.g. InGaZnO
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thin Film Transistor (AREA)
- Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
- Semiconductor Memories (AREA)
- Electroluminescent Light Sources (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Non-Volatile Memory (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Liquid Crystal (AREA)
Abstract
【解決手段】酸化物半導体膜は、低温PL法によって得られるPLスペクトルにおいて、極大値が1.6eV以上1.8eV以下である第1カーブと、極大値が1.7eV以上2.4eV以下である第2カーブと、を有し、第2カーブの面積を第1カーブの面積および第2カーブの面積の和で除した値が0.1以上1未満である。
【選択図】図1
Description
本実施の形態では、本発明の一態様に係る酸化物半導体膜について説明する。また、酸化物半導体膜の低温PL法によって得られるPLスペクトルの評価方法について説明する。
本実施の形態では、本発明の一態様に係るトランジスタについて説明する。
本実施の形態では、本発明の一態様に係る半導体装置である論理回路について説明する。
本実施の形態では、実施の形態3で示したインバータの回路を応用したフリップフロップで構成する半導体装置であるSRAM(Static Random Access Memory)について説明する。
先の実施の形態に示した酸化物半導体膜を用いたトランジスタは、オフ電流を極めて小さくすることができる。即ち、当該トランジスタを介した電荷のリークが起こりにくい電気特性を有する。
先の実施の形態に示した酸化物半導体膜を用いたトランジスタまたは記憶素子を有する半導体装置を少なくとも一部に用いてCPU(Central Processing Unit)を構成することができる。
本実施の形態では、先の実施の形態で示したトランジスタを適用した表示装置について説明する。
本実施の形態では、先の実施の形態で示した半導体装置を適用した電子機器の例について説明する。
11 カーブ
12 カーブ
13 カーブ
14 カーブ
52 絶縁膜
56a 酸化物半導体膜
56b 酸化物半導体膜
68 絶縁膜
100 基板
102 下地絶縁膜
104 ゲート電極
106 酸化物半導体膜
112 ゲート絶縁膜
114 バックゲート電極
116a ソース電極
116b ドレイン電極
118 保護絶縁膜
200 基板
202 下地絶縁膜
204 ゲート電極
206 酸化物半導体膜
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
300 基板
302 下地絶縁膜
304 ゲート電極
306 酸化物半導体膜
312 ゲート絶縁膜
316a ソース電極
316b ドレイン電極
400 基板
402 下地絶縁膜
404 ゲート電極
406 酸化物半導体膜
412 ゲート絶縁膜
416a ソース電極
416b ドレイン電極
420 絶縁膜
500 基板
502 下地絶縁膜
504 ゲート電極
506 酸化物半導体膜
512 ゲート絶縁膜
518 層間絶縁膜
520 絶縁膜
522 絶縁膜
524a 配線
524b 配線
526 電極
528 電極
551 トランジスタ
552 キャパシタ
553 ビット線
554 ワード線
555 容量線
556 メモリセル
558 センスアンプ
602 下地絶縁膜
620 絶縁膜
622 絶縁膜
626 電極
628 電極
650 半導体基板
654 ゲート電極
656 チャネル領域
657 不純物領域
657a ソース領域
657b ドレイン領域
662 ゲート絶縁膜
664 素子分離層
668 絶縁膜
671 トランジスタ
672 トランジスタ
673 キャパシタ
674 ソース線
675 ソース線
676 ワード線
677 ドレイン線
678 容量線
679 ノード
690 絶縁膜
719 発光素子
720 絶縁膜
721 絶縁膜
741 トランジスタ
742 キャパシタ
743 スイッチ素子
744 信号線
750 画素
751 トランジスタ
752 キャパシタ
753 液晶素子
754 走査線
755 信号線
781 電極
782 発光層
783 電極
784 隔壁
785a 中間層
785b 中間層
785c 中間層
785d 中間層
786a 発光層
786b 発光層
786c 発光層
791 電極
792 絶縁膜
793 液晶層
794 絶縁膜
795 スペーサ
796 電極
797 基板
802 絶縁膜
806 酸化物半導体膜
812 ゲート絶縁膜
814 ゲート電極
816a ソース電極
816b ドレイン電極
902 絶縁膜
906 酸化物半導体膜
912 ゲート絶縁膜
914 ゲート電極
916a ソース電極
916b ドレイン電極
1141 スイッチング素子
1142 記憶素子
1143 記憶素子群
1189 ROMインターフェース
1190 基板
1191 ALU
1192 ALUコントローラ
1193 インストラクションデコーダ
1194 インタラプトコントローラ
1195 タイミングコントローラ
1196 レジスタ
1197 レジスタコントローラ
1198 バスインターフェース
1199 ROM
2001 第1カーブ
2002 第2カーブ
2003 PLスペクトル
2011 第1カーブ
2012 第2カーブ
2013 PLスペクトル
2021 第1カーブ
2022 第2カーブ
2023 PLスペクトル
2031 第1カーブ
2032 第2カーブ
2033 PLスペクトル
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 (2)
- インジウム、ガリウム、スズ、ハフニウムおよび亜鉛のいずれかを含む酸化物半導体膜であって、
前記酸化物半導体膜は、前記酸化物半導体膜のバンドギャップ以上のエネルギーを有する光が照射されることで、キャリアが生成され、前記キャリアの一部が再結合する際に発光し、前記発光のエネルギーと前記発光の強度のプロットがガウス関数で近似される第1カーブおよび第2カーブを含み、前記第1カーブの極大値は1.6eV以上1.8eV以下であり、前記第2カーブの極大値は1.7eV以上2.4eV以下であり、前記第2カーブの面積を前記第1カーブの面積および前記第2カーブの面積の和で除した値が0.1以上1未満であることを特徴とする酸化物半導体膜。 - 酸化物半導体膜と、
前記酸化物半導体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酸化物半導体膜と重ねて設けられたゲート電極と、
を有し、
前記酸化物半導体膜は、インジウム、ガリウム、スズ、ハフニウムおよび亜鉛のいずれかを含み、
前記酸化物半導体膜は、前記酸化物半導体膜のバンドギャップ以上のエネルギーを有する光が照射されることで、キャリアが生成され、前記キャリアの一部が再結合する際に発光し、前記発光のエネルギーと前記発光の強度のプロットがガウス関数で近似される第1カーブおよび第2カーブを含み、前記第1カーブの極大値は1.6eV以上1.8eV以下であり、前記第2カーブの極大値は1.7eV以上2.4eV以下であり、前記第2カーブの面積を前記第1カーブの面積および前記第2カーブの面積の和で除した値が0.1以上1未満であることを特徴とする半導体装置。
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