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    • 2. 发明授权
    • Solid-state imaging device
    • 固态成像装置
    • US07067860B2
    • 2006-06-27
    • US10775126
    • 2004-02-11
    • Hidenori Yato
    • Hidenori Yato
    • H01L31/062
    • H01L27/14609H01L27/14643
    • The invention can provide a solid-state imaging device that can include a pixel array where a plurality of unit pixels including a photo diode and an insulated gate field effect transistor for detecting photocharges are arranged, and a control circuit that controls the operation of the pixel array. The control circuit can cause a junction region between a semiconductor substrate of a first conductivity type and a semiconductor layer of a second conductivity type to be in a forward bias state so as to accumulate a predetermined amount of the charge of a predetermined conductivity type in an accumulation region, and control discharging the charges of a predetermined conductivity type accumulated in the accumulation region thereafter. Accordingly, the invention provides a solid-state imaging element that avoids deterioration of image quality caused by photocharges accumulated during previous imaging.
    • 本发明可以提供一种固态成像装置,其可以包括像素阵列,其中布置有包括光电二极管的多个单位像素和用于检测光电荷的绝缘栅场效应晶体管;以及控制电路,其控制像素的操作 数组。 控制电路可以使第一导电类型的半导体衬底和第二导电类型的半导体层之间的结区处于正向偏置状态,以便将预定量的预定导电类型的电荷累积在 并且控制在其后放电累积在累积区域中的预定导电类型的电荷。 因此,本发明提供了一种固态成像元件,其避免了由于在先前成像期间累积的光电荷引起的图像质量的劣化。
    • 3. 发明授权
    • Solid-state imaging device
    • 固态成像装置
    • US06914228B2
    • 2005-07-05
    • US10772295
    • 2004-02-06
    • Hidenori Yato
    • Hidenori Yato
    • H01L27/146H01L31/062H04N5/335H04N5/357H04N5/369H04N5/374H04N5/3745
    • H01L27/14603H01L27/14609H01L27/14643H04N5/3597H04N5/374
    • A solid-state imaging device that can include a pixel array where a plurality of unit pixels including a photo diode and an insulated gate field effect transistor for detecting photocharges are arranged, and a control circuit that controls the operation of the pixel array. The control circuit can include a drain control circuit that provides any of constant voltage, a constant current, and constant charges to a drain diffused region. The control circuit previously forward biases a junction region between a semiconductor substrate of a first conductivity type and a semiconductor layer of a second conductivity type by any of the constant voltage, the constant current, and the constant charges, that is provided from the drain control circuit to the drain diffused region, so as to accumulate a predetermined amount of charges of a predetermined conductivity type in an accumulation region, and the charges of a predetermined conductivity type accumulated in the accumulation region are discharged thereafter. Accordingly the invention can avoid deterioration of image quality caused by a residual image due to photocharges accumulated in previous imaging.
    • 一种固态成像装置,其可以包括像素阵列,其中布置有包括光电二极管的多个单位像素和用于检测光电荷的绝缘栅场效应晶体管;以及控制电路,其控制像素阵列的操作。 控制电路可以包括漏极控制电路,其向漏极扩散区域提供恒定电压,恒定电流和恒定电荷中的任何一个。 控制电路预先向前偏置由第一导电类型的半导体衬底和第二导电类型的半导体层之间的接合区域中的任何恒定电压,恒定电流和恒定电荷,这些电流由漏极控制 电路到漏极扩散区域,以便在累积区域中累积预定导电类型的预定量的电荷,并且此后累积在累积区域中的预定导电类型的电荷被放电。 因此,本发明可以避免由于在先前的成像中累积的光电荷引起的残留图像引起的图像质量的劣化。
    • 5. 发明授权
    • Electric power consumption reduction device
    • 降低电力消耗装置
    • US5692201A
    • 1997-11-25
    • US503002
    • 1995-07-17
    • Hidenori Yato
    • Hidenori Yato
    • G06F1/26G06F1/04G06F1/32G06F15/78
    • G06F1/324G06F1/3203G06F1/3296Y02B60/1217Y02B60/1285
    • A semiconductor device, microcomputer, or electronic equipment capable of switching internal power voltages in order to suppress the power consumption thereof can prevent erroneous operation of the internal circuitry by switching the level of the internal power voltage in a stepwise manner. A constant-voltage circuit that causes the generation of power voltages is capable of generating voltages of at least three levels. During the switching of the power voltages, a control circuit implements stepwise switching of the power voltages by causing the sequential output of the voltages in increasing or decreasing order of absolute value. Immediately after a switch of power voltage, the level of the signal on the signal line is determined to be at the same level as that before the switching even if a potential change in a signal line is delayed by more than a change in the threshold voltage of a digital circuit, and thus erroneous recognition of data, or rather data inversion, is prevented. This improves the reliability of the device.
    • 能够切换内部电源电压以抑制其功耗的半导体器件,微型计算机或电子设备可以通过逐步地切换内部电源电压的电平来防止内部电路的错误操作。 导致产生电源电压的恒压电路能够产生至少三个电平的电压。 在电源电压切换期间,控制电路通过使电压的顺序输出以绝对值的递增或者降低的顺序实现逐步切换电力电压。 在电源电压切换之后,即使信号线中的电位变化延迟超过阈值电压的变化,信号线上的信号电平也被确定为与开关之前的电平相同的电平 的数字电路,因此防止数据的错误识别,或者数据反转。 这提高了设备​​的可靠性。