JP5324837B2 - 表示装置の作製方法 - Google Patents
表示装置の作製方法 Download PDFInfo
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- JP5324837B2 JP5324837B2 JP2008158808A JP2008158808A JP5324837B2 JP 5324837 B2 JP5324837 B2 JP 5324837B2 JP 2008158808 A JP2008158808 A JP 2008158808A JP 2008158808 A JP2008158808 A JP 2008158808A JP 5324837 B2 JP5324837 B2 JP 5324837B2
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Description
本発明の表示装置の作製方法について説明する。はじめに、表示装置の一形態とし液晶表示装置を用いて説明する。図1乃至図8に、駆動回路121に形成される薄膜トランジスタの断面図と、画素部122に形成される薄膜トランジスタの断面図を示す。なお、微結晶半導体膜を有する薄膜トランジスタはp型よりもn型の方が、移動度が高いので駆動回路に用いるのにより適しているが、本発明では、薄膜トランジスタはn型であってもp型であってもどちらでも良い。いずれの極性の薄膜トランジスタを用いる場合でも、同一の基板上に形成する薄膜トランジスタを全て同じ極性にそろえておくことが、工程数を抑えるためにも望ましい。ここでは、n型の薄膜トランジスタの作製方法について示す。
次に、本発明の表示装置の一形態である表示パネルの構成について、以下に示す。
本発明により得られる液晶表示装置や発光装置等の表示装置によって、様々なモジュール(アクティブマトリクス型液晶モジュール、アクティブマトリクス型ELモジュール)に用いることができる。即ち、それらを表示部に組み込んだ電子機器全てに本発明を実施できる。
Claims (2)
- 絶縁膜上に第1の微結晶半導体膜を形成し、
前記第1の微結晶半導体膜上に非晶質半導体膜を形成し、
前記非晶質半導体膜に0.1J/cm2以上0.2J/cm2未満のレーザビームを照射して、結晶粒径が0.5nm以上50nm以下である第2の微結晶半導体膜を形成し、
前記第2の微結晶半導体膜を薄膜トランジスタのチャネル形成領域に用いることを特徴とする表示装置の作製方法。 - 請求項1において、
前記絶縁膜の表面にプラズマ処理を行い、前記絶縁膜の表面に凹凸を形成し、該絶縁膜上に前記第1の微結晶半導体膜を形成することを特徴とする表示装置の作製方法。
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US9018109B2 (en) * | 2009-03-10 | 2015-04-28 | Semiconductor Energy Laboratory Co., Ltd. | Thin film transistor including silicon nitride layer and manufacturing method thereof |
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TWI634642B (zh) * | 2009-08-07 | 2018-09-01 | 半導體能源研究所股份有限公司 | 半導體裝置和其製造方法 |
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US8629438B2 (en) * | 2010-05-21 | 2014-01-14 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
JP6520320B2 (ja) * | 2015-04-03 | 2019-05-29 | 住友大阪セメント株式会社 | 光導波路デバイス、及び光導波路デバイスにおいてフォトリフラクティブ効果を解消又は低減する方法 |
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