发明申请
- 专利标题： Optical Sensor Device and Electronic Apparatus
- 专利标题（中）： 光学传感器设备和电子设备
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申请号： US11829709申请日： 2007-07-27
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公开(公告)号： US20070267665A1公开(公告)日： 2007-11-22
- 发明人: Jun Koyama , Takeshi Osada , Takanori Matsuzaki , Kazuo Nishi , Junya Maruyama
- 申请人： Jun Koyama , Takeshi Osada , Takanori Matsuzaki , Kazuo Nishi , Junya Maruyama
- 申请人地址： JP Kanagawa-ken 243-0036
- 专利权人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 当前专利权人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 当前专利权人地址： JP Kanagawa-ken 243-0036
- 优先权： JP2003-327629 20030919; JP2003-342632 20030930
- 主分类号： H01L31/113
- IPC分类号： H01L31/113
摘要：
In an optical sensor device employing an amorphous silicon photodiode, an external amplifier IC and the like are required due to low current capacity of the sensor element in order to improve the load driving capacity. It leads to increase in cost and mounting space of the optical sensor device. In addition, noise may easily superimpose since the photodiode and the amplifier IC are connected to each other over a printed circuit board. According to the invention, an amorphous silicon photodiode and an amplifier configured by a thin film transistor are formed integrally over a substrate so that the load driving capacity is improved while reducing cost and mounting space. Superimposing noise can be also reduced.
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