Solid-state imaging device and drive control method for the same
    2.
    发明申请
    Solid-state imaging device and drive control method for the same 有权
    固态成像装置和驱动控制方法相同

    公开(公告)号:US20050001915A1

    公开(公告)日:2005-01-06

    申请号:US10826038

    申请日:2004-04-16

    摘要: 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.

    摘要翻译: 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。

    Solid state imaging device having transition time relationship for drive signals
    3.
    发明授权
    Solid state imaging device having transition time relationship for drive signals 有权
    具有用于驱动信号的转换时间关系的固态成像装置

    公开(公告)号:US07468750B2

    公开(公告)日:2008-12-23

    申请号:US10826038

    申请日:2004-04-16

    IPC分类号: H04N3/14 H04N5/335 H01L27/00

    摘要: 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.

    摘要翻译: 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。

    Solid-state imaging device and drive control method for the same
    4.
    发明申请
    Solid-state imaging device and drive control method for the same 有权
    固态成像装置和驱动控制方法相同

    公开(公告)号:US20090072123A1

    公开(公告)日:2009-03-19

    申请号:US12231365

    申请日:2008-09-02

    IPC分类号: H01L27/146

    摘要: 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.

    摘要翻译: 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。

    Solid-state imaging device
    8.
    发明授权
    Solid-state imaging device 有权
    固态成像装置

    公开(公告)号:US07515185B2

    公开(公告)日:2009-04-07

    申请号:US10509977

    申请日:2003-04-04

    IPC分类号: H04N5/335 H01L27/148

    摘要: A solid-state imaging device for enlarging an operating margin of a pixel portion and achieving complete transfer of a signal charge by using a plurality of power supply voltages, wherein a plurality of power supplies having different power supply voltage values are supplied to portions of a semiconductor chip 1. For example, as a first power supply system, a first digital power supply voltage (DVDD1) is supplied from a power supply terminal 45, a first digital ground voltage (DVSS1) is supplied from a power supply terminal 46, a second digital power supply voltage (DVDD2) is supplied from a power supply terminal 47, a second digital ground voltage (DVSS2) is supplied from a power supply terminal 48, a third digital power supply (DVDD3) is supplied from a power supply terminal 49, and a third digital ground voltage (DVSS3) is supplied from a power supply terminal 50, and as a second power supply system, a first analog power supply voltage (AVDD1) is supplied from a power supply terminal 40, a first analog ground voltage (AVSS1) is supplied from a power supply terminal 41, a second analog power supply voltage (AVDD2) is supplied from a power supply terminal 42, and a second analog ground voltage (AVSS2) is supplied from a power supply terminal 43.

    摘要翻译: 一种固态成像装置,用于放大像素部分的工作裕度并通过使用多个电源电压实现信号电荷的完全传送,其中具有不同电源电压值的多个电源被提供给 半导体芯片1.例如,作为第一电源系统,从电源端子45供给第一数字电源电压(DVDD1),从电源端子46供给第一数字接地电压(DVSS1) 从电源端子47供给第二数字电源电压(DVDD2),从电源端子48供给第二数字接地电压(DVSS2),从电源端子49供给第三数字电源(DVDD3) ,并且从电源端子50提供第三数字接地电压(DVSS3),作为第二电源系统,从电源端子提供第一模拟电源电压(AVDD1) 如图40所示,从电源端子41提供第一模拟地电压(AVSS1),从电源端子42提供第二模拟电源电压(AVDD2),从第二模拟电源电压(AVSS2)供给第二模拟接地电压 电源端子43。