JP2012232889A - 酸化物材料および半導体装置 - Google Patents
酸化物材料および半導体装置 Download PDFInfo
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- JP2012232889A JP2012232889A JP2012094131A JP2012094131A JP2012232889A JP 2012232889 A JP2012232889 A JP 2012232889A JP 2012094131 A JP2012094131 A JP 2012094131A JP 2012094131 A JP2012094131 A JP 2012094131A JP 2012232889 A JP2012232889 A JP 2012232889A
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- Prior art keywords
- transistor
- oxide
- film
- insulating film
- oxide semiconductor
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
- H01L29/045—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes by their particular orientation of crystalline planes
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
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- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
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- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- H01L21/06—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 selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
- H01L21/10—Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
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- 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
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- 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
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- 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
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- 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
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- 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
- H01L27/124—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 layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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Abstract
【解決手段】それぞれ、c軸配向し、ab面、上面または被形成面に垂直な方向から見て少なくとも三角形状または六角形状の原子配列を有し、c軸においては、金属原子が層状または金属原子と酸素原子とが層状に配列しており、In2SnZn2O7(ZnO)m(mは0または自然数。)で表される、ab面(または上面または被形成面)においては、a軸またはb軸の向きが異なる二種以上の結晶部分を含む酸化物膜を用いる。
【選択図】図1
Description
本実施の形態では、それぞれ、c軸配向し、ab面、上面または被形成面に垂直な方向から見て少なくとも三角形状または六角形状の原子配列を有し、c軸においては、金属原子が層状または金属原子と酸素原子とが層状に配列している、ab面(または上面または被形成面)において、a軸またはb軸の向きが異なる二種以上の結晶部分を含む酸化物(CAAC酸化物:C Axis Aligned Crystalline Oxideともいう。)材料について説明する。
本実施の形態では、実施の形態1で示したCAAC酸化物材料を用いたトランジスタについて、図3乃至図9を用いて説明する。
本実施の形態では、実施の形態2に示したトランジスタを用いて作製した液晶表示装置について説明する。なお、本実施の形態では液晶表示装置に本発明の一態様を適用した例について説明するが、これに限定されるものではない。例えば、EL(Electroluminescence)表示装置に本発明の一態様を適用することも、当業者であれば容易に想到しうるものである。
本実施の形態では、実施の形態2に示したトランジスタを用いて、半導体記憶装置を作製する例について説明する。
本実施の形態では、実施の形態2乃至4を適用した電子機器の例について説明する。
102 下地絶縁膜
103 下地絶縁膜
104 保護絶縁膜
106 酸化物半導体膜
108 ゲート絶縁膜
109 ゲート絶縁膜
110 ゲート電極
111 ゲート電極
112 側壁絶縁膜
114 一対の電極
115 一対の電極
116 層間絶縁膜
117 層間絶縁膜
118 配線
119 配線
120 不純物
152 下地絶縁膜
153 下地絶縁膜
154 保護絶縁膜
156 酸化物半導体膜
158 絶縁膜
160 導電膜
161 導電膜
162 絶縁膜
165 導電膜
200 画素
210 液晶素子
220 キャパシタ
230 トランジスタ
300 筐体
301 ボタン
302 マイクロフォン
303 表示部
304 スピーカ
305 カメラ
310 筐体
311 表示部
320 筐体
321 ボタン
322 マイクロフォン
323 表示部
Claims (4)
- 酸化物材料は、
c軸配向し、ab面に垂直な方向から見て三角形状または六角形状の原子配列を有し、In2SnZn2O7(ZnO)m(mは0または自然数。)で表され、かつa軸またはb軸の向きが異なる二種以上の結晶部分を含むことを特徴とする酸化物材料。 - c軸に垂直な方向から見て、金属原子、または金属原子および酸素原子が層状に原子配列することを特徴とする請求項1に記載の酸化物材料。
- 組成の異なる二種の膜を含む請求項1または請求項2のいずれか一に記載の酸化物材料。
- ゲート電極と、
前記ゲート電極と接するゲート絶縁膜と、
c軸配向し、ab面に垂直な方向から見て三角形状または六角形状の原子配列を有し、In2SnZn2O7(ZnO)m(mは0または自然数。)で表され、かつa軸またはb軸の向きが異なる二種以上の結晶部分を含む酸化物半導体膜と、
前記酸化物半導体膜と少なくとも一部が接する一対の電極と、を有し、
前記酸化物半導体膜は、前記ゲート電極と対向して前記ゲート絶縁膜に接して設けられることを特徴とする半導体装置。
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JP2015146462A (ja) * | 2011-04-22 | 2015-08-13 | 株式会社半導体エネルギー研究所 | 半導体装置 |
WO2016139556A1 (ja) * | 2015-03-03 | 2016-09-09 | 株式会社半導体エネルギー研究所 | 酸化物半導体膜、該酸化物半導体膜を有する半導体装置、及び該半導体装置を有する表示装置 |
JP2017199900A (ja) * | 2016-04-22 | 2017-11-02 | 株式会社半導体エネルギー研究所 | 半導体装置、及び半導体装置の作製方法 |
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KR20160009626A (ko) | 2013-05-21 | 2016-01-26 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 산화물 반도체막 및 그 형성 방법 |
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JP6647841B2 (ja) | 2014-12-01 | 2020-02-14 | 株式会社半導体エネルギー研究所 | 酸化物の作製方法 |
JP2020178079A (ja) * | 2019-04-19 | 2020-10-29 | 株式会社Joled | 半導体装置および表示装置 |
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WO2016139556A1 (ja) * | 2015-03-03 | 2016-09-09 | 株式会社半導体エネルギー研究所 | 酸化物半導体膜、該酸化物半導体膜を有する半導体装置、及び該半導体装置を有する表示装置 |
JPWO2016139556A1 (ja) * | 2015-03-03 | 2018-01-11 | 株式会社半導体エネルギー研究所 | 酸化物半導体膜、該酸化物半導体膜を有する半導体装置、及び該半導体装置を有する表示装置 |
JP2017199900A (ja) * | 2016-04-22 | 2017-11-02 | 株式会社半導体エネルギー研究所 | 半導体装置、及び半導体装置の作製方法 |
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US20120267622A1 (en) | 2012-10-25 |
JP2017022415A (ja) | 2017-01-26 |
JP6440793B2 (ja) | 2018-12-19 |
TW201248849A (en) | 2012-12-01 |
JP2017228802A (ja) | 2017-12-28 |
KR20120120063A (ko) | 2012-11-01 |
TW201709504A (zh) | 2017-03-01 |
JP2015146462A (ja) | 2015-08-13 |
KR101994080B1 (ko) | 2019-07-01 |
TWI570910B (zh) | 2017-02-11 |
US20160240607A1 (en) | 2016-08-18 |
JP5744367B2 (ja) | 2015-07-08 |
TWI641130B (zh) | 2018-11-11 |
JP2019024137A (ja) | 2019-02-14 |
JP6028062B2 (ja) | 2016-11-16 |
US9818820B2 (en) | 2017-11-14 |
JP6633723B2 (ja) | 2020-01-22 |
US9331206B2 (en) | 2016-05-03 |
JP6215430B2 (ja) | 2017-10-18 |
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