JP2011258939A - 半導体装置の作製方法 - Google Patents
半導体装置の作製方法 Download PDFInfo
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- JP2011258939A JP2011258939A JP2011105570A JP2011105570A JP2011258939A JP 2011258939 A JP2011258939 A JP 2011258939A JP 2011105570 A JP2011105570 A JP 2011105570A JP 2011105570 A JP2011105570 A JP 2011105570A JP 2011258939 A JP2011258939 A JP 2011258939A
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- insulating film
- oxide semiconductor
- film
- semiconductor film
- transistor
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- OYQCBJZGELKKPM-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O-2].[Zn+2].[O-2].[In+3] OYQCBJZGELKKPM-UHFFFAOYSA-N 0.000 description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 1
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- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 description 1
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 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
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- 230000005283 ground state Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000838 magnetophoresis Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
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- 238000009832 plasma treatment Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
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- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
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- 238000007740 vapor deposition Methods 0.000 description 1
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Abstract
【解決手段】ゲート電極を形成し、ゲート電極上に第1の絶縁膜を形成し、第1の絶縁膜にハロゲンドープ処理を行って、第1の絶縁膜にハロゲン原子を供給し、第1の絶縁膜上に、ゲート電極と重畳して酸化物半導体膜を形成し、酸化物半導体膜に熱処理を行って、酸化物半導体膜中の水素原子を除去し、水素原子が除去された酸化物半導体膜に酸素ドープ処理を行って、酸化物半導体膜中に酸素原子を供給し、酸素原子が供給された酸化物半導体膜に熱処理を行い、酸化物半導体膜上に接して、ソース電極およびドレイン電極を形成し、第2の絶縁膜を形成する半導体装置の作製方法である。
【選択図】図2
Description
本実施の形態では、半導体装置および半導体装置の作製方法について、図1乃至図3を用いて説明する。
図1には、トランジスタ120の構成例を示す。ここで、図1(A)は平面図であり、図1(B)および図1(C)はそれぞれ、図1(A)におけるA−B断面およびC−D断面に係る断面図である。なお、図1(A)では煩雑になることを避けるため、トランジスタ120の構成要素の一部(例えば、絶縁膜110a、絶縁膜110bなど)を省略している。
以下、図2を用いて、図1に示す半導体装置の作製工程の一例を説明する。
図3(A)乃至図3(F)には、図1に示すトランジスタ120の変形例として、トランジスタ130、トランジスタ140、トランジスタ150、トランジスタ125、トランジスタ135およびトランジスタ145の断面図を示す。
本実施の形態では、半導体装置および半導体装置の作製方法について、図4乃至図6を用いて説明する。
図4には、トランジスタ320の構成例を示す。ここで、図4(A)は平面図であり、図4(B)および図4(C)はそれぞれ、図4(A)におけるA−B断面およびC−D断面に係る断面図である。なお、図4(A)では煩雑になることを避けるため、トランジスタ320の構成要素の一部(例えば、ゲート絶縁膜310a、ゲート絶縁膜310bなど)を省略している。
以下、図5を用いて、図4に示す半導体装置の作製工程の一例を説明する。
図6(A)乃至図6(F)には、図4に示すトランジスタ320の変形例として、トランジスタ330、トランジスタ340、トランジスタ350、トランジスタ325、トランジスタ335およびトランジスタ345の断面図を示す。
本実施の形態では、酸素ドープ処理またはハロゲンドープ処理に用いることができるプラズマ装置(アッシング装置とも呼ぶ)の例を説明する。なお、この装置は、例えば第5世代以降の大型のガラス基板などに対応することができる点で、イオン注入装置などよりも工業的に適している。
本実施の形態では、半導体装置の一例として、記憶媒体(メモリ素子)を示す。本実施の形態では、実施の形態1または2などにおいて示す酸化物半導体を用いたトランジスタと、酸化物半導体以外の材料を用いたトランジスタとを同一基板上に形成する。
実施の形態1または2で例示したトランジスタを用いて表示機能を有する半導体装置(表示装置ともいう)を作製することができる。また、トランジスタを含む駆動回路の一部または全体を、画素部と同じ基板上に一体形成し、システムオンパネルを形成することができる。
実施の形態1または2のいずれかで一例を示したトランジスタを用いて、対象物の情報を読み取るイメージセンサ機能を有する半導体装置を作製することができる。
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、例えば、テレビジョン装置(テレビ、またはテレビジョン受信機ともいう)、コンピュータ用などのモニタ、デジタルカメラ、デジタルビデオカメラ等のカメラ、デジタルフォトフレーム、携帯電話機(携帯電話、携帯電話装置ともいう)、携帯型ゲーム機、携帯情報端末、音響再生装置、パチンコ機などの大型ゲーム機などが挙げられる。上記実施の形態で説明した液晶表示装置を具備する電子機器の例について説明する。
11 基板供給室
12 ロードロック室
13 搬送室
14 カセットポート
15 真空チャンバー
16 ICPコイル
17 ガス流路
18 第1の高周波電源
19 基板ステージ
20 被処理基板
21 第2の高周波電源
22 自動圧力制御弁
23 ターボ分子ポンプ
24 ドライポンプ
100 基板
102a ゲート絶縁膜
102b ゲート絶縁膜
104a ソース電極
104b ドレイン電極
106 酸化物半導体膜
108 酸化物半導体膜
110a 絶縁膜
110b 絶縁膜
112 ゲート電極
112a ゲート電極
112b 電極
114 絶縁膜
120 トランジスタ
125 トランジスタ
130 トランジスタ
135 トランジスタ
140 トランジスタ
145 トランジスタ
150 トランジスタ
151 絶縁膜
152 絶縁膜
154 電極
156 配線
160 トランジスタ
164 容量素子
180 ハロゲン
182 酸素
200 基板
206 素子分離絶縁膜
208 ゲート絶縁膜
210 ゲート電極
216 チャネル形成領域
220 不純物領域
224 金属化合物領域
228 絶縁膜
230 絶縁膜
240 トランジスタ
300 基板
302 絶縁膜
302a 絶縁膜
302b 絶縁膜
304a ソース電極
304b ドレイン電極
308 酸化物半導体膜
310 ゲート絶縁膜
310a ゲート絶縁膜
310b ゲート絶縁膜
312 ゲート電極
312a ゲート電極
312b 電極
314 絶縁膜
320 トランジスタ
325 トランジスタ
330 トランジスタ
335 トランジスタ
340 トランジスタ
345 トランジスタ
350 トランジスタ
380 ハロゲン
382 酸素
601 基板
602 フォトダイオード
606a 半導体層
606b 半導体層
606c 半導体層
608 接着層
613 基板
622 光
631 絶縁膜
633 層間絶縁層
634 層間絶縁層
640 トランジスタ
641 電極層
642 電極層
643 導電層
644 電極層
645 ゲート電極
656 トランジスタ
658 フォトダイオードリセット信号線
659 ゲート信号線
671 フォトセンサ出力信号線
672 フォトセンサ基準信号線
2700 電子書籍
2701 筐体
2703 筐体
2705 表示部
2707 表示部
2711 軸部
2721 電源
2723 操作キー
2725 スピーカー
2800 筐体
2801 筐体
2802 表示パネル
2803 スピーカー
2804 マイクロフォン
2805 操作キー
2806 ポインティングデバイス
2807 カメラ用レンズ
2808 外部接続端子
2810 太陽電池セル
2811 外部メモリスロット
3001 本体
3002 筐体
3003 表示部
3004 キーボード
3021 本体
3022 スタイラス
3023 表示部
3024 操作ボタン
3025 外部インターフェイス
3051 本体
3053 接眼部
3054 操作スイッチ
3055 表示部(B)
3056 バッテリー
3057 表示部(A)
4001 基板
4002 画素部
4003 信号線駆動回路
4004 走査線駆動回路
4005 シール材
4006 基板
4008 液晶層
4010 トランジスタ
4011 トランジスタ
4013 液晶素子
4015 接続端子電極
4016 端子電極
4018 FPC
4019 異方性導電膜
4021 絶縁層
4030 電極層
4031 電極層
4032 絶縁膜
4035 スペーサ
4510 隔壁
4511 電界発光層
4513 発光素子
4514 充填材
4612 キャビティ
4613 球形粒子
4614 充填材
4615a 黒色領域
4615b 白色領域
9600 テレビジョン装置
9601 筐体
9603 表示部
9605 スタンド
9630 筐体
9631 表示部
9632 操作キー
9633 太陽電池
9634 充放電制御回路
9635 バッテリー
9636 コンバータ
9637 コンバータ
Claims (14)
- ゲート電極を形成し、
前記ゲート電極上に第1の絶縁膜を形成し、
前記第1の絶縁膜にハロゲンドープ処理を行って、前記第1の絶縁膜にハロゲン原子を供給し、
前記第1の絶縁膜上に、前記ゲート電極と重畳して酸化物半導体膜を形成し、
前記酸化物半導体膜に熱処理を行って、前記酸化物半導体膜中の水素原子を除去し、
前記水素原子が除去された酸化物半導体膜に酸素ドープ処理を行って、前記酸化物半導体膜中に酸素原子を供給し、
前記酸素原子が供給された前記酸化物半導体膜に熱処理を行い、
前記酸化物半導体膜上に接して、ソース電極およびドレイン電極を形成し、
前記酸化物半導体膜上に接して、第2の絶縁膜を形成する半導体装置の作製方法。 - 前記第2の絶縁膜を覆うように、窒素を含有する絶縁膜を形成する請求項1に記載の半導体装置の作製方法。
- 第1の絶縁膜を形成し、
前記第1の絶縁膜にハロゲンドープ処理を行って、前記第1の絶縁膜にハロゲン原子を供給し、
前記第1の絶縁膜上に酸化物半導体膜を形成し、
前記酸化物半導体膜に熱処理を行って、前記酸化物半導体膜中の水素原子を除去し、
前記水素原子が除去された酸化物半導体膜に酸素ドープ処理を行って、前記酸化物半導体膜中に酸素原子を供給し、
前記酸素原子が供給された酸化物半導体膜に熱処理を行い、
前記酸化物半導体膜上に接して、ソース電極およびドレイン電極を形成し、
前記酸化物半導体膜上に接して、第2の絶縁膜を形成し、
前記第2の絶縁膜上の前記酸化物半導体膜と重畳する領域にゲート電極を形成する半導体装置の作製方法。 - 前記ゲート電極を覆うように、窒素を含有する絶縁膜を形成する請求項3に記載の半導体装置の作製方法。
- 前記酸化物半導体膜を形成した後、前記酸化物半導体膜を島状に加工する請求項1乃至4のいずれか一に記載の半導体装置の作製方法。
- 前記酸化物半導体膜を島状に加工する工程において、少なくとも前記第1の絶縁膜の一部も島状に加工する請求項5に記載の半導体装置の作製方法。
- 前記第1の絶縁膜と接するように前記第2の絶縁膜を形成する請求項5または6に記載の半導体装置の作製方法。
- 前記第1の絶縁膜または前記第2の絶縁膜として、前記酸化物半導体膜の構成元素を含む絶縁膜を形成する請求項1乃至7のいずれか一に記載の半導体装置の作製方法。
- 前記第1の絶縁膜または前記第2の絶縁膜として、前記酸化物半導体膜の構成元素を含む絶縁膜と、前記酸化物半導体膜の構成元素とは異なる元素を含む絶縁膜を積層して形成する請求項1乃至8のいずれか一に記載の半導体装置の作製方法。
- 前記第1の絶縁膜を形成し、前記第1の絶縁膜にハロゲンドープ処理を行って、前記第1の絶縁膜にハロゲン原子を供給する工程に代えて、
前記第1の絶縁膜として、前記酸化物半導体膜の構成元素とは異なる元素を含む絶縁膜を形成し、
前記酸化物半導体膜の構成元素とは異なる元素を含む絶縁膜にハロゲンドープ処理を行って、前記酸化物半導体膜の構成元素とは異なる元素を含む絶縁膜にハロゲン原子を供給し、
前記第1の絶縁膜として、前記酸化物半導体膜の構成元素とは異なる元素を含む絶縁膜上に前記酸化物半導体膜の構成元素を含む絶縁膜を形成する請求項9に記載の半導体装置の作製方法。 - 前記第1の絶縁膜または前記第2の絶縁膜として、ガリウムを含む絶縁膜を形成する請求項1乃至10のいずれか一に記載の半導体装置の作製方法。
- 前記第1の絶縁膜または前記第2の絶縁膜として、ガリウムを含む絶縁膜と、ガリウムとは異なる材料を含む絶縁膜を形成する請求項1乃至11のいずれか一に記載の半導体装置の作製方法。
- 前記第1の絶縁膜を形成し、前記第1の絶縁膜にハロゲンドープ処理を行って、前記第1の絶縁膜にハロゲン原子を供給する工程に代えて、
前記第1の絶縁膜として、ガリウムとは異なる材料を含む絶縁膜を形成し、
前記ガリウムとは異なる材料を含む絶縁膜にハロゲンドープ処理を行って、前記ガリウムとは異なる材料を含む絶縁膜にハロゲン原子を供給し、
前記第1の絶縁膜として、前記ガリウムとは異なる材料を含む絶縁膜上に前記ガリウムを含む絶縁膜を形成する請求項12に記載の半導体装置の作製方法。 - 前記ハロゲンドープ処理において、塩素を用いる請求項1乃至13のいずれか一に記載の半導体装置の作製方法。
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TW201203392A (en) | 2012-01-16 |
JP6239022B2 (ja) | 2017-11-29 |
US8440510B2 (en) | 2013-05-14 |
TWI525709B (zh) | 2016-03-11 |
JP2016157959A (ja) | 2016-09-01 |
US20110281394A1 (en) | 2011-11-17 |
KR101806271B1 (ko) | 2017-12-07 |
WO2011142467A1 (en) | 2011-11-17 |
KR20130058021A (ko) | 2013-06-03 |
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