Damascene copper wiring optical image sensor
    11.
    发明授权
    Damascene copper wiring optical image sensor 有权
    大马士革铜线接线光学图像传感器

    公开(公告)号:US07655495B2

    公开(公告)日:2010-02-02

    申请号:US11623977

    申请日:2007-01-17

    Abstract: A CMOS image sensor array and method of fabrication wherein the sensor includes Copper (Cu) metallization levels allowing for incorporation of a thinner interlevel dielectric stack with improved thickness uniformity to result in a pixel array exhibiting increased light sensitivity. In the sensor array, each Cu metallization level includes a Cu metal wire structure formed at locations between each array pixel and, a barrier material layer is formed on top each Cu metal wire structure that traverses the pixel optical path. By implementing a single mask or self-aligned mask methodology, a single etch is conducted to completely remove the interlevel dielectric and barrier layers that traverse the optical path. The etched opening is then refilled with dielectric material. Prior to depositing the refill dielectric, a layer of either reflective or absorptive material is formed along the sidewalls of the etched opening to improve sensitivity of the pixels by either reflecting light to the underlying photodiode or by eliminating light reflections.

    Abstract translation: CMOS图像传感器阵列和制造方法,其中传感器包括铜(Cu)金属化水平,允许结合更薄的层间电介质叠层,具有改进的厚度均匀性,以产生呈现增加的光敏度的像素阵列。 在传感器阵列中,每个Cu金属化层包括在每个阵列像素之间的位置处形成的Cu金属线结构,并且阻挡材料层形成在穿过像素光路的每个Cu金属线结构上。 通过实现单掩模或自对准掩模方法,进行单次蚀刻以完全去除穿过光路的层间电介质层和阻挡层。 然后将蚀刻的开口用电介质材料重新填充。 在沉积再充填电介质之前,沿蚀刻开口的侧壁形成反射或吸收材料层,以通过将光反射到下面的光电二极管或通过消除光反射来提高像素的灵敏度。

    HIGH EFFICIENCY CMOS IMAGE SENSOR PIXEL EMPLOYING DYNAMIC VOLTAGE SUPPLY
    13.
    发明申请
    HIGH EFFICIENCY CMOS IMAGE SENSOR PIXEL EMPLOYING DYNAMIC VOLTAGE SUPPLY 有权
    高效CMOS图像传感器像素采用动态电压供应

    公开(公告)号:US20090236644A1

    公开(公告)日:2009-09-24

    申请号:US12050967

    申请日:2008-03-19

    CPC classification number: H04N5/361 G06F17/5063 H04N5/359 H04N5/3745

    Abstract: A global shutter compatible pixel circuit comprising a reset gate (RG) transistor is provided in which a dynamic voltage is applied to the drain of the reset gate transistor in order to reduce a floating diffusion (FD) leakage therethrough during signal hold time. The drain voltage of the reset gate transistor is held at a lower voltage than a circuit supply voltage to minimize the off-state leakage through the RG transistor, thus reducing the change in the voltage at the floating diffusion during the signal hold time. In addition, a design structure for such a circuit providing a dynamic voltage to the drain of a reset gate of a pixel circuit is also provided.

    Abstract translation: 提供了包括复位栅极(RG)晶体管的全局快门兼容像素电路,其中动态电压被施加到复位栅极晶体管的漏极,以便减少在信号保持时间期间通过其的浮动扩散(FD)泄漏。 复位栅极晶体管的漏极电压保持在比电路电源电压更低的电压,以最小化通过RG晶体管的截止状态泄漏,从而减少在信号保持时间期间浮动扩散时的电压变化。 此外,还提供了用于向像素电路的复位栅极的漏极提供动态电压的这种电路的设计结构。

    Method of forming a pixel sensor cell for collecting electrons and holes
    14.
    发明授权
    Method of forming a pixel sensor cell for collecting electrons and holes 失效
    形成用于收集电子和空穴的像素传感器单元的方法

    公开(公告)号:US07563636B2

    公开(公告)日:2009-07-21

    申请号:US12172304

    申请日:2008-07-14

    Abstract: The present invention is a pixel sensor cell and method of making the same. The pixel sensor cell approximately doubles the available signal for a given quanta of light. The device of the present invention utilizes the holes produced by impinging photons in a pixel sensor cell circuit. A pixel sensor cell having reduced complexity includes an n-type collection well region formed beneath a surface of a substrate for collecting electrons generated by electromagnetic radiation impinging on the pixel sensor cell and a p-type collection well region formed beneath the surface of the substrate for collecting holes generated by the impinging photons. A circuit structure having a first input is coupled to the n-type collection well region and a second input is coupled to the p-type collection well region, wherein an output signal of the pixel sensor cell is the magnitude of the difference of a signal of the first input and a signal of the second input.

    Abstract translation: 本发明是像素传感器单元及其制造方法。 像素传感器单元对于给定的光量大约使可用信号加倍。 本发明的器件利用通过在像素传感器单元电路中照射光子而产生的空穴。 具有降低的复杂度的像素传感器单元包括形成在基板的表面下面的n型收集阱区域,用于收集由电子辐射照射在像素传感器单元上​​产生的电子以及形成在基板表面下方的p型收集阱区域 用于收集由撞击光子产生的孔。 具有第一输入的电路结构耦合到n型收集阱区域,而第二输入端耦合到p型收集阱区域,其中像素传感器单元的输出信号是信号的差值的大小 的第一输入和第二输入的信号。

    PIXEL SENSOR CELL FOR COLLECTING ELECTIONS AND HOLES
    16.
    发明申请
    PIXEL SENSOR CELL FOR COLLECTING ELECTIONS AND HOLES 失效
    用于收集选择和角色的像素传感器单元

    公开(公告)号:US20080296476A1

    公开(公告)日:2008-12-04

    申请号:US12172306

    申请日:2008-07-14

    Abstract: The present invention is a pixel sensor cell and method of making the same. The pixel sensor cell approximately doubles the available signal for a given quanta of light. The device of the present invention utilizes the holes produced by impinging photons in a pixel sensor cell circuit. A pixel sensor cell having reduced complexity includes an n-type collection well region formed beneath a surface of a substrate for collecting electrons generated by electromagnetic radiation impinging on the pixel sensor cell and a p-type collection well region formed beneath the surface of the substrate for collecting holes generated by the impinging photons. A circuit structure having a first input is coupled to the n-type collection well region and a second input is coupled to the p-type collection well region, wherein an output signal of the pixel sensor cell is the magnitude of the difference of a signal of the first input and a signal of the second input.

    Abstract translation: 本发明是像素传感器单元及其制造方法。 像素传感器单元对于给定的光量大约使可用信号加倍。 本发明的器件利用通过在像素传感器单元电路中照射光子而产生的空穴。 具有降低的复杂度的像素传感器单元包括形成在基板的表面下面的n型收集阱区域,用于收集由电子辐射照射在像素传感器单元上​​产生的电子以及形成在基板表面下方的p型收集阱区域 用于收集由撞击光子产生的孔。 具有第一输入的电路结构耦合到n型收集阱区域,而第二输入端耦合到p型收集阱区域,其中像素传感器单元的输出信号是信号的差值的大小 的第一输入和第二输入的信号。

    METHOD OF FORMING A PIXEL SENSOR CELL FOR COLLECTING ELECTRONS AND HOLES
    17.
    发明申请
    METHOD OF FORMING A PIXEL SENSOR CELL FOR COLLECTING ELECTRONS AND HOLES 失效
    形成用于收集电子和孔的像素传感器单元的方法

    公开(公告)号:US20080274578A1

    公开(公告)日:2008-11-06

    申请号:US12172304

    申请日:2008-07-14

    Abstract: The present invention is a pixel sensor cell and method of making the same. The pixel sensor cell approximately doubles the available signal for a given quanta of light. The device of the present invention utilizes the holes produced by impinging photons in a pixel sensor cell circuit. A pixel sensor cell having reduced complexity includes an n-type collection well region formed beneath a surface of a substrate for collecting electrons generated by electromagnetic radiation impinging on the pixel sensor cell and a p-type collection well region formed beneath the surface of the substrate for collecting holes generated by the impinging photons. A circuit structure having a first input is coupled to the n-type collection well region and a second input is coupled to the p-type collection well region, wherein an output signal of the pixel sensor cell is the magnitude of the difference of a signal of the first input and a signal of the second input.

    Abstract translation: 本发明是像素传感器单元及其制造方法。 像素传感器单元对于给定的光量大约使可用信号加倍。 本发明的器件利用通过在像素传感器单元电路中照射光子而产生的空穴。 具有降低的复杂度的像素传感器单元包括形成在基板的表面下面的n型收集阱区域,用于收集由电子辐射照射在像素传感器单元上​​产生的电子以及形成在基板表面下方的p型收集阱区域 用于收集由撞击光子产生的孔。 具有第一输入的电路结构耦合到n型收集阱区域,而第二输入端耦合到p型收集阱区域,其中像素传感器单元的输出信号是信号的差值的大小 的第一输入和第二输入的信号。

    Pixel sensor cell for collecting electrons and holes
    18.
    发明授权
    Pixel sensor cell for collecting electrons and holes 失效
    用于收集电子和空穴的像素传感器单元

    公开(公告)号:US07439561B2

    公开(公告)日:2008-10-21

    申请号:US11161535

    申请日:2005-08-08

    Abstract: The present invention is a pixel sensor cell and method of making the same. The pixel sensor cell approximately doubles the available signal for a given quanta of light. The device of the present invention utilizes the holes produced by impinging photons in a pixel sensor cell circuit. A pixel sensor cell having reduced complexity includes an n-type collection well region formed beneath a surface of a substrate for collecting electrons generated by electromagnetic radiation impinging on the pixel sensor cell and a p-type collection well region formed beneath the surface of the substrate for collecting holes generated by the impinging photons. A circuit structure having a first input is coupled to the n-type collection well region and a second input is coupled to the p-type collection well region, wherein an output signal of the pixel sensor cell is the magnitude of the difference of a signal of the first input and a signal of the second input.

    Abstract translation: 本发明是像素传感器单元及其制造方法。 像素传感器单元对于给定的光量大约使可用信号加倍。 本发明的器件利用通过在像素传感器单元电路中照射光子而产生的空穴。 具有降低的复杂度的像素传感器单元包括形成在基板的表面下面的n型收集阱区域,用于收集由电子辐射照射在像素传感器单元上​​产生的电子以及形成在基板表面下方的p型收集阱区域 用于收集由撞击光子产生的孔。 具有第一输入的电路结构耦合到n型收集阱区域,而第二输入端耦合到p型收集阱区域,其中像素传感器单元的输出信号是信号的差值的大小 的第一输入和第二输入的信号。

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