JP2015026831A - 半導体装置及びその作製方法 - Google Patents
半導体装置及びその作製方法 Download PDFInfo
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- JP2015026831A JP2015026831A JP2014126801A JP2014126801A JP2015026831A JP 2015026831 A JP2015026831 A JP 2015026831A JP 2014126801 A JP2014126801 A JP 2014126801A JP 2014126801 A JP2014126801 A JP 2014126801A JP 2015026831 A JP2015026831 A JP 2015026831A
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- film
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Abstract
Description
本実施の形態では、本発明の一態様である半導体装置及びその作製方法について、図1乃至図4を参照して説明する。
本実施の形態では、実施の形態1と異なる構成を有する本発明の一態様の半導体装置について説明する。なお、実施の形態1と同様の構成を有する部分については、実施の形態1を参酌することが可能であるため、詳細な説明は省略する。
本実施の形態では、半導体層として酸化物半導体層を適用した場合、酸化物半導体層の欠陥量をさらに低減することが可能なトランジスタを有する半導体装置について図面を参照して説明する。本実施の形態で説明するトランジスタは、実施の形態1又は実施の形態2と比較して、酸化物半導体層を複数備えた多層膜を有する点が異なる。ここでは、実施の形態1の図1で示した半導体装置を用いて、トランジスタの詳細を説明する。
次に、図6に示すトランジスタ210に含まれる積層構造、及び図7に示すトランジスタ220に含まれる積層構造のバンド構造について、図8を用いて説明する。
本実施の形態では、上記実施の形態で説明した半導体装置に含まれているトランジスタにおいて、半導体膜として酸化物半導体膜を用いた場合に、酸化物半導体膜に適用可能な一態様について説明する。
まずは、CAAC−OS膜について説明する。
次に、多結晶酸化物半導体膜について説明する。
次に、微結晶酸化物半導体膜について説明する。
次に、非晶質酸化物半導体膜について説明する。
次に、単結晶酸化物半導体膜について説明する。
本実施の形態では、本発明の一態様である半導体装置について、図面を用いて説明する。なお、本実施の形態では、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。また、本実施の形態では、半導体層として酸化物半導体層を用いて説明する。
本実施の形態では、本発明の一態様の半導体装置を搭載することのできる電子機器について説明する。
52 開口部
102 基板
105 酸化物半導体層
104 ゲート電極
104a ゲート電極
104b ゲート電極
106 絶縁膜
107 酸化物半導体層
108 絶縁膜
109 酸化物半導体層
110 半導体層
112 保護膜
112a 保護層
112b 保護層
113 保護膜
113a 保護層
113b 保護層
114 導電膜
114a 導電層
114b 導電層
115a マスク
115b マスク
116a 電極
116b 電極
118a 保護層
118b 保護層
120 保護膜
120a 保護層
120b 保護層
122 絶縁膜
124 絶縁膜
126 ゲート電極
131_1 トランジスタ
131_2 トランジスタ
132 液晶素子
133_1 容量素子
133_2 容量素子
134 トランジスタ
135 発光素子
200 トランジスタ
210 トランジスタ
220 トランジスタ
230 トランジスタ
301 画素
302 基板
304a 導電層
304b 導電層
304c 導電層
305 絶縁膜
306 絶縁膜
307 半導体膜
308a 半導体層
308b 半導体層
308c 層
308d 半導体層
309 保護膜
310 導電膜
311 保護膜
312a 保護層
312b 保護層
312c 保護層
312d 保護層
312e 保護層
312f 保護層
312g 保護層
313a 導電層
313b 導電層
313c 導電層
313d 導電層
313e 導電層
313f 導電層
314a 保護層
314b 保護層
314c 保護層
314d 保護層
314e 保護層
315 絶縁膜
316 絶縁膜
317 絶縁膜
318 絶縁膜
319 導電膜
320a 導電層
320b 導電層
321 液晶層
322 液晶素子
323 配向膜
324a 保護層
324b 保護層
324c 保護層
324d 保護層
324e 保護層
342 基板
344 遮光膜
346 有色膜
348 絶縁膜
350 導電層
352 配向膜
362 開口部
362c 開口部
364a 開口部
364b 開口部
364c 開口部
401 画素部
402 トランジスタ
403 トランジスタ
404 走査線駆動回路
405 容量素子
406 信号線駆動回路
407 走査線
409 信号線
415 容量線
7100 テレビジョン装置
7101 筐体
7103 表示部
7105 スタンド
7107 表示部
7109 操作キー
7110 リモートコントローラ
7201 本体
7202 筐体
7203 表示部
7204 キーボード
7205 外部接続ポート
7206 ポインティングデバイス
7301 筐体
7302 筐体
7303 連結部
7304 表示部
7305 表示部
7306 スピーカ部
7307 記録媒体挿入部
7308 LEDランプ
7309 操作キー
7310 接続端子
7311 センサ
7312 マイクロフォン
7400 携帯電話機
7401 筐体
7402 表示部
7403 操作ボタン
7404 外部接続ポート
7405 スピーカ
7406 マイク
7450 コンピュータ
7451L 筐体
7451R 筐体
7452L 表示部
7452R 表示部
7453 操作ボタン
7454 ヒンジ
7455L 左側スピーカ
7455R 右側スピーカ
7456 外部接続ポート
Claims (7)
- 半導体層と、導電層と、第1の保護層と、第2の保護層と、第3の保護層と、を有し、
前記導電層の下面は、前記第1の保護層と接し、
前記導電層の上面は、前記第2の保護層と接し、
前記導電層の側面は、前記第3の保護層と接し、
前記半導体層は、前記第1の保護層と接し、
前記導電層は、銅、アルミニウム、金、又は銀を含み、
前記第3の保護層の側面の下端部は、前記第1の保護層の側面の上端部と一致する半導体装置。 - 半導体層と、導電層と、第1の保護層と、第2の保護層と、第3の保護層と、を有し、
前記導電層の下面は、前記第1の保護層と接し、
前記導電層の上面は、前記第2の保護層と接し、
前記導電層の側面は、前記第3の保護層と接し、
前記半導体層は、前記第1の保護層と接し、
前記導電層は、銅、アルミニウム、金、又は銀を含み、
前記第3の保護層の側面の下端部は、前記第1の保護層の側面の上端部と一致し、
前記第1の保護層上面は、前記導電層および前記第3の保護層と接し、
前記第2の保護層下面は、前記導電層および前記第3の保護層と接する半導体装置。 - 請求項1又は2において、
前記第1の保護層は、導電性を有する層である半導体装置。 - 請求項3において、
前記導電性を有する層は、チタン、タンタル、タングステン、モリブデンの単体若しくは合金、又は窒化チタン、窒化タンタル、窒化タングステン若しくは窒化モリブデンで形成される半導体装置。 - 請求項1乃至4のいずれか一において、
前記半導体層において、前記第1の保護層と接する領域の膜厚は、その他の領域の膜厚よりも大きい半導体装置。 - 請求項1乃至5のいずれか一において、前記半導体層は、インジウム、ガリウム又は亜鉛を含有する酸化物半導体層である半導体装置。
- 半導体層上に、第1の保護層となる第1の保護膜、銅、アルミニウム、金、又は銀を含む導電膜、及び第2の保護層となる第2の保護膜を形成し、
前記第2の保護膜上に、第1のマスクを形成し、
前記第1のマスクを用いて前記第2の保護膜を加工して、第2の保護層を形成し、
前記第2の保護層を用いて前記導電膜を加工して、導電層を形成し、
前記第2の保護層の側面及び上面と、前記導電層の側面と、前記第1の保護膜において前記導電層から露出した領域と、に接する第3の保護膜を形成し、
前記第3の保護膜及び前記第1の保護膜を異方性エッチングにより加工して、前記導電層と前記半導体層の間に位置する第1の保護層と、前記導電層の側面に接する第3の保護層と、を形成する半導体装置の作製方法。
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JP2024026715A (ja) | 2024-02-28 |
KR20220113909A (ko) | 2022-08-17 |
JP2022058842A (ja) | 2022-04-12 |
JP6817399B2 (ja) | 2021-01-20 |
KR102432662B1 (ko) | 2022-08-16 |
US20140374908A1 (en) | 2014-12-25 |
KR102290801B1 (ko) | 2021-08-17 |
US9508592B2 (en) | 2016-11-29 |
JP2023065644A (ja) | 2023-05-12 |
KR20210104609A (ko) | 2021-08-25 |
JP6431699B2 (ja) | 2018-11-28 |
US20160042990A1 (en) | 2016-02-11 |
JP7241942B2 (ja) | 2023-03-17 |
US9171803B2 (en) | 2015-10-27 |
KR20140148305A (ko) | 2014-12-31 |
JP2020025119A (ja) | 2020-02-13 |
JP2019024124A (ja) | 2019-02-14 |
KR102652869B1 (ko) | 2024-03-28 |
JP2021061424A (ja) | 2021-04-15 |
JP6609019B2 (ja) | 2019-11-20 |
JP7019791B2 (ja) | 2022-02-15 |
KR20240041905A (ko) | 2024-04-01 |
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