JP6211849B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP6211849B2 JP6211849B2 JP2013163808A JP2013163808A JP6211849B2 JP 6211849 B2 JP6211849 B2 JP 6211849B2 JP 2013163808 A JP2013163808 A JP 2013163808A JP 2013163808 A JP2013163808 A JP 2013163808A JP 6211849 B2 JP6211849 B2 JP 6211849B2
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- Prior art keywords
- oxide semiconductor
- film
- semiconductor film
- insulating film
- oxide
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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
-
- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/10—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1025—Channel region of field-effect devices
- H01L29/1029—Channel region of field-effect devices of field-effect transistors
- H01L29/1033—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure
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- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78696—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
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Description
本実施の形態では、半導体装置の一形態を、図4(A)及び図4(B)を用いて説明する。本実施の形態では、下部に第1の半導体材料を用いたトランジスタ311を有し、上部に第2の半導体材料を用いたトランジスタ411を有するものである。
本実施の形態では、実施の形態1と一部異なる例を以下に説明する。本実施の形態は、実施の形態1の酸化物半導体膜の積層膜403の形成方法や酸素の供給方法などが異なる例である。
実施の形態1または実施の形態2に示すトランジスタを使用した半導体装置の一例として、論理回路であるNOR型回路の回路図の一例を図6(A)に示す。図6(B)はNAND型回路の回路図である。
本実施の形態では、半導体装置の一例として、図4(B)に示すトランジスタ411、及び図5で示すトランジスタ412のいずれか一を少なくとも一部に用いたCPU(Central Processing Unit)について説明する。
本実施の形態では、液晶表示装置を例にして本発明の一態様である半導体装置を説明する。
本明細書に開示する半導体装置は、さまざまな電子機器(遊技機も含む)に適用することができる。電子機器としては、テレビ、モニタ等の表示装置、照明装置、デスクトップ型或いはノート型のパーソナルコンピュータ、ワードプロセッサ、DVD(Digital Versatile Disc)などの記録媒体に記憶された静止画又は動画を再生する画像再生装置、ポータブルCDプレーヤ、ラジオ、テープレコーダ、ヘッドホンステレオ、ステレオ、コードレス電話子機、トランシーバ、携帯電話、自動車電話、携帯型ゲーム機、電卓、携帯情報端末、電子手帳、電子書籍、電子翻訳機、音声入力機器、ビデオカメラ、デジタルスチルカメラ、電気シェーバ、電子レンジ等の高周波加熱装置、電気炊飯器、電気洗濯機、電気掃除機、エアコンディショナーなどの空調設備、食器洗い器、食器乾燥器、衣類乾燥器、布団乾燥器、電気冷蔵庫、電気冷凍庫、電気冷凍冷蔵庫、DNA保存用冷凍庫、煙感知器、放射線測定器、透析装置等の医療機器、などが挙げられる。さらに、誘導灯、信号機、ベルトコンベア、エレベータ、エスカレータ、産業用ロボット、電力貯蔵システム等の産業機器も挙げられる。また、石油を用いたエンジンや、非水系二次電池からの電力を用いて電動機により推進する移動体なども、電子機器の範疇に含まれるものとする。上記移動体として、例えば、電気自動車(EV)、内燃機関と電動機を併せ持ったハイブリッド車(HEV)、プラグインハイブリッド車(PHEV)、これらのタイヤ車輪を無限軌道に変えた装軌車両、電動アシスト自転車を含む原動機付自転車、自動二輪車、電動車椅子、ゴルフ用カート、小型又は大型船舶、潜水艦、ヘリコプター、航空機、ロケット、人工衛星、宇宙探査機や惑星探査機、宇宙船が挙げられる。これらの電子機器の具体例を図14、及び図15に示す。
10b スパッタ装置
10c スパッタ装置
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
16 基板加熱室
100 画素部
101 画素
102 基板
103 トランジスタ
104 走査線駆動回路
105 容量素子
106 信号線駆動回路
107 走査線
107a ゲート電極
108 液晶素子
109 信号線
109a ソース電極
111 積層膜
111a 酸化物半導体膜
111b 酸化物半導体膜
111c 酸化物半導体膜
113 導電膜
113a ドレイン電極
115 容量線
117 開口
119 酸化物半導体膜
121 画素電極
123 開口
125 導電膜
127 ゲート絶縁膜
129 絶縁膜
131 絶縁膜
132 絶縁膜
150 基板
152 遮光膜
154 対向電極
156 絶縁膜
158 絶縁膜
160 液晶層
300 基板
301 ゲート電極
302 素子分離絶縁膜
303 ゲート絶縁膜
304 電極層
306 配線層
307a 導電膜
307b 導電膜
307c 導電膜
308 層間絶縁膜
309 配線層
310 バリア層
311 トランジスタ
312 層間絶縁膜
400 基板
401 ゲート電極
402a ゲート絶縁膜
402b ゲート絶縁膜
403 積層膜
403a 酸化物半導体膜
403b 酸化物半導体膜
403c 酸化物半導体膜
405a 電極層
405b 電極層
407 絶縁膜
407a 保護絶縁膜
407b 保護絶縁膜
408 保護絶縁膜
410 トランジスタ
411 トランジスタ
412 トランジスタ
434 配線層
435 絶縁膜
491 ゲート電極
700 基板
701 積層膜
701a 酸化物半導体膜
701b 酸化物半導体膜
701c 酸化物半導体膜
708 下地絶縁膜
711 酸化物半導体膜
801 トランジスタ
802 トランジスタ
803 トランジスタ
804 トランジスタ
811 トランジスタ
812 トランジスタ
813 トランジスタ
814 トランジスタ
1141 スイッチング素子
1142 メモリセル
1143 メモリセル群
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
8000 テレビジョン装置
8001 筐体
8002 表示部
8003 スピーカ部
8200 室内機
8201 筐体
8202 送風口
8203 CPU
8204 室外機
8300 電気冷凍冷蔵庫
8301 筐体
8302 冷蔵室用扉
8303 冷凍室用扉
8304 CPU
9033 留め具
9034 スイッチ
9035 電源スイッチ
9036 スイッチ
9038 操作スイッチ
9630 筐体
9631 表示部
9631a 表示部
9631b 表示部
9632a 領域
9632b 領域
9633 太陽電池
9634 充放電制御回路
9635 バッテリー
9636 DCDCコンバータ
9637 コンバータ
9638 操作キー
9639 ボタン
9700 電気自動車
9701 二次電池
9702 制御回路
9703 駆動装置
9704 処理装置
Claims (3)
- 半導体基板と、
前記半導体基板上方の第1の酸化物半導体膜と、
前記第1の酸化物半導体膜上方の第2の酸化物半導体膜と、
前記第2の酸化物半導体膜上方の第3の酸化物半導体膜と、を有し、
前記第2の酸化物半導体膜は、結晶構造を有し、
前記第2の酸化物半導体膜の伝導帯下端は、前記第1の酸化物半導体膜の伝導帯下端に比べて真空準位から深く、
前記第2の酸化物半導体膜の伝導帯下端は、前記第3の酸化物半導体膜の伝導帯下端に比べて真空準位から深く、
前記第2の酸化物半導体膜は、局在準位による吸収係数が3×10 −3 /cm以下であることを特徴とする半導体装置。 - 半導体基板と、
前記半導体基板の一部をチャネル形成領域として含む第1のトランジスタと、
前記第1のトランジスタ上方の絶縁膜と、
前記絶縁膜上方の第2のトランジスタと、を有し、
前記第2のトランジスタは、
第1の酸化物半導体膜と、
前記第1の酸化物半導体膜上方の第2の酸化物半導体膜と、
前記第2の酸化物半導体膜上方の第3の酸化物半導体膜と、を有し、
前記第2の酸化物半導体膜は、結晶構造を有し、
前記第2の酸化物半導体膜の伝導帯下端は、前記第1の酸化物半導体膜の伝導帯下端に比べて真空準位から深く、
前記第2の酸化物半導体膜の伝導帯下端は、前記第3の酸化物半導体膜の伝導帯下端に比べて真空準位から深く、
前記第2の酸化物半導体膜は、局在準位による吸収係数が3×10 −3 /cm以下であることを特徴とする半導体装置。 - 請求項1または請求項2において、
前記第1の酸化物半導体膜及び前記第3の酸化物半導体膜に含まれるSiの濃度は、3×1018/cm3以下であり、
前記第1の酸化物半導体膜及び前記第3の酸化物半導体膜に含まれる炭素の濃度は、3×1018/cm3以下であることを特徴とする半導体装置。
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US20140042434A1 (en) | 2014-02-13 |
US20180204948A1 (en) | 2018-07-19 |
CN110010699B (zh) | 2022-12-06 |
CN103579359B (zh) | 2019-05-17 |
JP2014057054A (ja) | 2014-03-27 |
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US9929276B2 (en) | 2018-03-27 |
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