JP2010171415A - 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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- JP2010171415A JP2010171415A JP2009292454A JP2009292454A JP2010171415A JP 2010171415 A JP2010171415 A JP 2010171415A JP 2009292454 A JP2009292454 A JP 2009292454A JP 2009292454 A JP2009292454 A JP 2009292454A JP 2010171415 A JP2010171415 A JP 2010171415A
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- film transistor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- OYQCBJZGELKKPM-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O-2].[Zn+2].[O-2].[In+3] OYQCBJZGELKKPM-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】成膜後の導電膜を大気にさらすことなく、導電膜上に連続して第1半導体層以下の導電率を有する第2半導体膜を含む保護膜を積層し、当該積層膜をソース電極層及びドレイン電極層に形成し、ソース電極層及びドレイン電極層が第2半導体膜を介して第1半導体層に接する。
【選択図】図1
Description
本実施の形態では、半導体装置の一例である薄膜トランジスタ及びその作製工程について説明する。具体的には薄膜トランジスタを有する表示装置の画素部の作製工程について説明する。
ここでは本発明の一形態として、2つのnチャネル型の薄膜トランジスタを用いてインバータ回路を構成する例を以下に説明する。
本実施の形態では、半導体装置の薄膜トランジスタについて説明する。具体的にはトップゲート型の薄膜トランジスタを有する表示装置の画素部について説明する。
本実施の形態では、本発明の半導体装置の一態様である表示装置として電子ペーパーの例を示す。
本実施の形態では、本発明の半導体装置の一態様である表示装置として、同一基板上に少なくとも駆動回路の一部と、画素部に配置する薄膜トランジスタを作製する例について図8乃至図13を用いて以下に説明する。
本実施の形態では、本発明の半導体装置の一態様として、実施の形態1乃至3と同様に形成した薄膜トランジスタを画素部、さらには駆動回路に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、実施の形態1乃至3と同様に形成した薄膜トランジスタを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。
本実施の形態では、本発明の半導体装置の一態様として発光表示装置を示す。表示装置の有する表示素子としては、ここではエレクトロルミネッセンスを利用する発光素子を用いて示す。エレクトロルミネッセンスを利用する発光素子は、発光材料が有機化合物であるか、無機化合物であるかによって区別され、一般的に、前者は有機EL素子、後者は無機EL素子と呼ばれている。
本発明の一態様が例示する表示装置は、電子ペーパーとして適用することができる。電子ペーパーは、情報を表示するものであればあらゆる分野の電子機器に用いることが可能である。例えば、電子ペーパーを用いて、電子書籍(電子ブック)、ポスター、電車などの乗り物の車内広告、クレジットカード等の各種カードにおける表示等に適用することができる。半導体装置の一例を図19、図20に示す。
本発明の一態様に係る半導体装置は、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、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。
102 ゲート絶縁膜
103 半導体膜
104 半導体膜
105 導電膜
109 層間絶縁膜
111 ゲート電極層
113 半導体層
114a 保護層
114b 保護層
114c 保護層
115a 電極層
115b 電極層
115c 電極層
118 配線
123 容量配線
124 コンタクトホール
126 コンタクトホール
128 画素電極層
131 レジストマスク
132 レジストマスク
151 薄膜トランジスタ
152 薄膜トランジスタ
153 薄膜トランジスタ
154 薄膜トランジスタ
155 薄膜トランジスタ
580 基板
581 薄膜トランジスタ
583 ゲート絶縁層
584 絶縁層
585 絶縁層
587 電極層
588 電極層
589 球形粒子
590a 黒色領域
590b 白色領域
594 キャビティ
595 充填材
1000 携帯電話機
1001 筐体
1002 表示部
1003 操作ボタン
1004 外部接続ポート
1005 スピーカ
1006 マイク
2600 TFT基板
2601 対向基板
2602 シール材
2603 画素部
2604 表示素子
2605 着色層
2606 偏光板
2607 偏光板
2608 配線回路部
2609 フレキシブル配線基板
2610 冷陰極管
2611 反射板
2612 回路基板
2613 拡散板
2631 ポスター
2632 車内広告
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
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 薄膜トランジスタ
4011 薄膜トランジスタ
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
4020 絶縁層
4021 絶縁層
4030 画素電極層
4031 対向電極層
4032 絶縁層
4501 基板
4502 画素部
4503a 信号線駆動回路
4504a 走査線駆動回路
4505 シール材
4506 基板
4507 充填材
4509 薄膜トランジスタ
4510 薄膜トランジスタ
4511 発光素子
4512 電界発光層
4513 電極層
4515 接続端子電極
4516 端子電極
4517 電極層
4518a FPC
4519 異方性導電膜
4520 隔壁
5300 基板
5301 画素部
5302 走査線駆動回路
5303 信号線駆動回路
5400 基板
5401 画素部
5402 走査線駆動回路
5403 信号線駆動回路
5404 走査線駆動回路
5501 配線
5502 配線
5503 配線
5504 配線
5505 配線
5506 配線
5543 ノード
5544 ノード
5571 薄膜トランジスタ
5572 薄膜トランジスタ
5573 薄膜トランジスタ
5574 薄膜トランジスタ
5575 薄膜トランジスタ
5576 薄膜トランジスタ
5577 薄膜トランジスタ
5578 薄膜トランジスタ
5601 ドライバIC
5602 スイッチ群
5603a 薄膜トランジスタ
5603b 薄膜トランジスタ
5603c 薄膜トランジスタ
5611 配線
5612 配線
5613 配線
5621 配線
5701 フリップフロップ
5703a タイミング
5703b タイミング
5703c タイミング
5711 配線
5712 配線
5713 配線
5714 配線
5715 配線
5716 配線
5717 配線
5721 信号
5803a タイミング
5803b タイミング
5803c タイミング
5821 信号
6400 画素
6401 スイッチング用トランジスタ
6402 駆動用トランジスタ
6403 容量素子
6404 発光素子
6405 信号線
6406 走査線
6407 電源線
6408 共通電極
7001 TFT
7002 発光素子
7003 陰極
7004 発光層
7005 陽極
7011 駆動用TFT
7012 発光素子
7013 陰極
7014 発光層
7015 陽極
7016 遮蔽膜
7017 導電膜
7021 駆動用TFT
7022 発光素子
7023 陰極
7024 発光層
7025 陽極
7027 導電膜
9600 テレビジョン装置
9601 筐体
9603 表示部
9605 スタンド
9607 表示部
9609 操作キー
9610 リモコン操作機
9700 デジタルフォトフレーム
9701 筐体
9703 表示部
9881 筐体
9882 表示部
9883 表示部
9884 スピーカ部
9885 入力手段(操作キー)
9886 記録媒体挿入部
9887 接続端子
9888 センサ
9889 マイクロフォン
9890 LEDランプ
9891 筐体
9893 連結部
9900 スロットマシン
9901 筐体
9903 表示部
Claims (9)
- ゲート電極層と、
前記ゲート電極層上のゲート絶縁膜と、
前記ゲート絶縁膜上で前記ゲート電極層と端部が重畳する第1電極層及び第2電極層と、
前記第1電極層及び前記第2電極層上にある保護層と、
前記ゲート電極層と重畳し、前記ゲート絶縁膜、前記第1電極層及び前記第2電極層の側面部、並びに前記保護層の側面部と上面部に接する第1半導体層を有し、
前記保護層が前記第1半導体層以下の導電率を有する半導体装置。 - 第1電極層及び第2電極層と、
前記第1電極層及び前記第2電極層上の保護層と、
前記第1電極層及び前記第2電極層の側面部、並びに前記保護層の側面部と上面部に接する第1半導体層と、
前記第1半導体層上のゲート絶縁膜と、
前記ゲート絶縁膜を介して前記第1電極層及び前記第2電極層の端部に重畳するゲート電極層を有し、
前記保護層が第1半導体層以下の導電率を有する半導体装置。 - 前記保護層が第1半導体層と同じ元素を含む組成物で形成されている請求項1または2記載の半導体装置。
- 前記第1半導体層が酸化物半導体により形成されている請求項1乃至3記載の半導体装置。
- 前記第1半導体層がインジウム、ガリウム、及び亜鉛を含む半導体により形成されている請求項1乃至4記載の半導体装置。
- 前記第1電極層及び前記第2電極層上に、前記第1半導体層以下の導電率を有し、前記第1半導体層より薄い第2半導体層が形成されている請求項1乃至5記載の半導体装置。
- ゲート電極層を形成し、
前記ゲート電極層上にゲート絶縁膜を形成し、
前記ゲート絶縁膜上に第1電極層及び第2電極層を形成し、
前記第1電極層及び前記第2電極層上に保護層を形成し、
前記ゲート電極層に重畳し、前記ゲート絶縁膜、前記第1電極層及び前記第2電極層の側面部、並びに前記保護層の上面部と側面部に接して第1半導体層を形成する、
前記保護層が第1半導体層以下の導電率を有する半導体装置の作製方法。 - 第1電極層及び第2電極層を形成し、
前記第1電極層及び前記第2電極層上に保護層を形成し、
前記第1電極層及び前記第2電極層の側面部と、前記保護層の上面部と側面部に接して第1半導体層を形成し、
前記第1半導体層上にゲート絶縁膜を形成し、
前記ゲート絶縁膜を介して前記第1電極層及び前記第2電極層の端部に重畳するゲート電極層を形成する、
前記保護層が第1半導体層以下の導電率を有する半導体装置の作製方法。 - 導電膜を成膜し、
前記導電膜を大気にさらすことなく前記導電膜上に第2半導体膜を連続して成膜して積層膜を形成し、
前記積層膜を用いて保護層を有する第1電極層及び第2電極層を形成する請求項7または8記載の半導体装置の作製方法。
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Also Published As
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TWI476915B (zh) | 2015-03-11 |
JP6220412B2 (ja) | 2017-10-25 |
US8772784B2 (en) | 2014-07-08 |
JP2016149563A (ja) | 2016-08-18 |
JP2014239244A (ja) | 2014-12-18 |
US20130175523A1 (en) | 2013-07-11 |
US20100163866A1 (en) | 2010-07-01 |
JP5917623B2 (ja) | 2016-05-18 |
US8383470B2 (en) | 2013-02-26 |
JP5588669B2 (ja) | 2014-09-10 |
KR101635842B1 (ko) | 2016-07-04 |
CN101794818B (zh) | 2014-04-23 |
KR20100075735A (ko) | 2010-07-05 |
CN101794818A (zh) | 2010-08-04 |
TW201036164A (en) | 2010-10-01 |
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