发明授权
- 专利标题: Electro-optical devices in which pixel section and the driver circuit are disposed over the same substrate
- 专利标题(中): 像素部分和驱动电路设置在同一基板上的电光装置
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申请号: US09550828申请日: 2000-04-18
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公开(公告)号: US06362507B1公开(公告)日: 2002-03-26
- 发明人: Hiroyuki Ogawa , Kazuhide Tomiyasu , Ritsuko Kawasaki , Hidehito Kitakado , Kenji Kasahara , Shunpei Yamazaki
- 申请人: Hiroyuki Ogawa , Kazuhide Tomiyasu , Ritsuko Kawasaki , Hidehito Kitakado , Kenji Kasahara , Shunpei Yamazaki
- 优先权: JP11-111592 19990420
- 主分类号: H01L2703
- IPC分类号: H01L2703
摘要:
An object of the present invention is to improve the reliability and the operation performance of a semiconductor device comprising a driver circuit and a pixel pixel section by optimizing the TFT structure disposed in each circuit in accordance with the function of the circuit. The optimized circuit operation can be obtained by providing a LDD region that overlaps with at least the gate electrode in the driver circuit n-channel TFT, and a LDD region in the pixel section n-channel TFT in which the impurity concentration of the both LDD regions are differed.
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