发明授权
US5422511A Image sensor utilizing photo diode, blocking diode and clamping diode
失效
图像传感器采用光电二极管，阻塞二极管和钳位二极管
- 专利标题： Image sensor utilizing photo diode, blocking diode and clamping diode
- 专利标题（中）： 图像传感器采用光电二极管，阻塞二极管和钳位二极管
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申请号： US973308申请日： 1992-11-09
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公开(公告)号： US5422511A公开(公告)日： 1995-06-06
- 发明人: Yoichi Hosokawa , Tadashi Obayashi , Shinichiro Kurata , Satoru Murakami , Hiromi Maeda , Takeharu Yamawaki
- 申请人： Yoichi Hosokawa , Tadashi Obayashi , Shinichiro Kurata , Satoru Murakami , Hiromi Maeda , Takeharu Yamawaki
- 申请人地址： JPX Osaka
- 专利权人： Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人： Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX3-321058 19911109
- 主分类号： H01L27/12
- IPC分类号： H01L27/12 ; H01L27/146 ; H04N1/028 ; H04N1/19 ; H01L27/14
摘要：
The invention seeks to reduce residual image in the vertical direction, which is the most significant drawback in the charge storage system, and further to permit increased speed of operation to be obtained.To this end, an image sensor of matrix drive type according to the invention comprises m by n diode pairs each including a photo- and a blocking diode PD and BD with the cathode electrodes thereof connected in series, the diode pairs constituting n blocks B.sub.1,B.sub.2 . . . , Bn each of m diode pairs. A clamp diode CD is connected to the juncture between the photo- and blocking diodes PD and BD in each diode pair to clamp the potential on the juncture and thus permit complete and quick charging of the capacitance of the photo-diode PD.
公开/授权文献
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