Solid-state imaging device, method of driving same, and camera apparatus having dummy pixel
    125.
    发明授权
    Solid-state imaging device, method of driving same, and camera apparatus having dummy pixel 有权
    固态成像装置,其驱动方法以及具有虚拟像素的相机装置

    公开(公告)号:US09560295B2

    公开(公告)日:2017-01-31

    申请号:US14996880

    申请日:2016-01-15

    Inventor: Keiji Mabuchi

    Abstract: A solid-state imaging device of a three-transistor pixel configuration having no selection transistor has a problem of a non-selection hot carrier white point, which is specific to this apparatus. A bias current during a non-reading period of pixels is made to flow to a pixel associated with an immediately previous selection pixel, for example, the immediately previous selection pixel itself. As a result, dark current only for one line occurs in each pixel, and the dark current for one line itself can be reduced markedly. Consequently, defective pixels due to non-selection hot carrier white points can be virtually eliminated.

    Abstract translation: 没有选择晶体管的三晶体管像素配置的固态成像器件具有特定于该装置的非选择热载流子白点的问题。 像素的非读取周期期间的偏置电流流向与紧接在前的选择像素(例如,紧接在前的选择像素本身)相关联的像素。 结果,在每个像素中出现仅一行的暗电流,并且可以显着地减少一行本身的暗电流。 因此,可以实际上消除由于非选择热载体白点引起的缺陷像素。

    Solid state imaging device having bias line providing fixing potential
    128.
    发明授权
    Solid state imaging device having bias line providing fixing potential 有权
    具有偏置线提供固定电位的固态成像装置

    公开(公告)号:US09521343B2

    公开(公告)日:2016-12-13

    申请号:US13852787

    申请日:2013-03-28

    Abstract: A CMOS sensor has unit pixels each structured by a light receiving element and three transistors, to prevent against the phenomenon of saturation shading and the reduction of dynamic range. The transition time (fall time), in switching off the voltage on a drain line shared in all pixels, is given longer than the transition time in turning of any of the reset line and the transfer line. For this reason, the transistor constituting a DRN drive buffer is made proper in its W/L ratio. Meanwhile, a control resistance or current source is inserted on a line to the GND, to make proper the operation current during driving. This reduces saturation shading amount. By making a reset transistor in a depression type, the leak current to a floating diffusion is suppressed to broaden the dynamic range.

    Abstract translation: CMOS传感器具有由光接收元件和三个晶体管构成的单位像素,以防止饱和阴影现象和动态范围的减小。 在关闭所有像素中共享的漏极线上的电压时,转换时间(下降时间)的长度大于转动任何复位线和传输线的转换时间。 因此,构成DRN驱动缓冲器的晶体管的W / L比是合适的。 同时,将控制电阻或电流源插入到GND的一条线上,以使驱动期间的操作电流正确。 这样可以减少饱和度遮蔽量。 通过使抑制型复位晶体管成为抑制浮动扩散的漏电流,扩大动态范围。

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