SILICIDE STRAPPING IN IMAGER TRANSFER GATE DEVICE
    31.
    发明申请
    SILICIDE STRAPPING IN IMAGER TRANSFER GATE DEVICE 有权
    图像转印门装置中的硅胶缠绕

    公开(公告)号:US20080128767A1

    公开(公告)日:2008-06-05

    申请号:US11565801

    申请日:2006-12-01

    CPC classification number: H01L27/14609 H01L27/14643 H01L27/14689

    Abstract: A CMOS active pixel sensor (APS) cell structure having dual workfunction transfer gate device and method of fabrication. The transfer gate device comprises a dielectric layer formed on a substrate and a dual workfunction gate conductor layer formed on the dielectric layer comprising a first conductivity type doped region and an abutting second conductivity type doped region. The transfer gate device defines a channel region where charge accumulated by a photosensing device is transferred to a diffusion region. A silicide structure is formed atop the dual workfunction gate conductor layer for electrically coupling the first and second conductivity type doped regions. In one embodiment, the silicide contact is smaller in area dimension than an area dimension of said dual workfunction gate conductor layer. Presence of the silicide strap prevents the diodic behavior from allowing one or the other side of the gate to float to an indeterminate voltage.

    Abstract translation: 具有双功能转移栅极器件和制造方法的CMOS有源像素传感器(APS)单元结构。 传输栅极器件包括形成在衬底上的电介质层和形成在包括第一导电类型掺杂区和邻接第二导电类型掺杂区的电介质层上的双功函数栅导体层。 传输门装置限定了由光敏装置累积的电荷被传送到扩散区的沟道区。 在双功函数栅极导体层顶部形成硅化物结构,用于电耦合第一和第二导电类型掺杂区域。 在一个实施例中,硅化物接触面积尺寸小于所述双功函数栅极导体层的面积尺寸。 硅化物带的存在防止了双极性行为允许栅极的一侧或另一侧浮动到不确定的电压。

    Methods for enhancing quality of pixel sensor image frames for global shutter imaging
    32.
    发明授权
    Methods for enhancing quality of pixel sensor image frames for global shutter imaging 有权
    用于提高全局快门成像的像素传感器图像帧质量的方法

    公开(公告)号:US08681254B2

    公开(公告)日:2014-03-25

    申请号:US13283819

    申请日:2011-10-28

    CPC classification number: H04N5/361 H04N5/359

    Abstract: The image qualify of an image frame from a CMOS image sensor array operated in global shutter mode may be enhanced by dispersing or randomizing the noise introduced by leakage currents from floating drains among the rows of the image frame. Further, the image quality may be improved by accounting for time dependent changes in the output of dark pixels in dark pixel rows or dark pixel columns. In addition, voltage and time dependent changes in the output of dark pixels may also be measured to provide an accurate estimate of the noise introduced to the charge held in the floating drains. Such methods may be employed individually or in combination to improve the quality of the image.

    Abstract translation: 来自在全球快门模式下操作的CMOS图像传感器阵列的图像帧的图像限定可以通过将来自浮动排水口的泄漏电流引入的噪声分散或随机化在图像帧的行中来增强。 此外,通过考虑暗像素行或暗像素列中的暗像素的输出中的时间依赖性变化,可以提高图像质量。 此外,还可以测量暗像素的输出中的电压和时间相关的变化,以提供引入到浮动排水管中的电荷的噪声的准确估计。 这样的方法可以单独使用或组合使用以提高图像的质量。

    CMOS imager photodiode with enhanced capacitance
    33.
    发明授权
    CMOS imager photodiode with enhanced capacitance 有权
    具有增强电容的CMOS成像光电二极管

    公开(公告)号:US08106432B2

    公开(公告)日:2012-01-31

    申请号:US12634898

    申请日:2009-12-10

    Abstract: A pixel sensor cell having a semiconductor substrate having a surface; a photosensitive element formed in a substrate having a non-laterally disposed charge collection region entirely isolated from a physical boundary including the substrate surface. The photosensitive element comprises a trench having sidewalls formed in the substrate of a first conductivity type material; a first doped layer of a second conductivity type material formed adjacent to at least one of the sidewalls; and a second doped layer of the first conductivity type material formed between the first doped layer and the at least one trench sidewall and formed at a surface of the substrate, the second doped layer isolating the first doped layer from the at least one trench sidewall and the substrate surface. In a further embodiment, an additional photosensitive element is provided that includes a laterally disposed charge collection region that contacts the non-laterally disposed charge collection region of the photosensitive element and underlies the doped layer formed at the substrate surface.

    Abstract translation: 一种像素传感器单元,具有具有表面的半导体衬底; 形成在具有与包括基板表面的物理边界完全隔离的非横向布置的电荷收集区域的基板中的感光元件。 感光元件包括具有形成在第一导电类型材料的衬底中的侧壁的沟槽; 与所述侧壁中的至少一个相邻形成的第二导电类型材料的第一掺杂层; 以及形成在所述第一掺杂层和所述至少一个沟槽侧壁之间并形成在所述衬底的表面处的所述第一导电类型材料的第二掺杂层,所述第二掺杂层将所述第一掺杂层与所述至少一个沟槽侧壁隔离, 基材表面。 在另一个实施例中,提供附加的光敏元件,其包括横向设置的电荷收集区域,其接触感光元件的非横向设置的电荷收集区域,并且位于在衬底表面形成的掺杂层的下方。

    High efficiency CMOS image sensor pixel employing dynamic voltage supply
    34.
    发明授权
    High efficiency CMOS image sensor pixel employing dynamic voltage supply 失效
    采用动态电压源的高效率CMOS图像传感器像素

    公开(公告)号:US08023021B2

    公开(公告)日:2011-09-20

    申请号:US12641589

    申请日:2009-12-18

    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。

    SILICIDE STRAPPING IN IMAGER TRANSFER GATE DEVICE
    35.
    发明申请
    SILICIDE STRAPPING IN IMAGER TRANSFER GATE DEVICE 有权
    图像转印门装置中的硅胶缠绕

    公开(公告)号:US20100136733A1

    公开(公告)日:2010-06-03

    申请号:US12699419

    申请日:2010-02-03

    CPC classification number: H01L27/14609 H01L27/14643 H01L27/14689

    Abstract: A CMOS active pixel sensor (APS) cell structure having dual workfunction transfer gate device and method of fabrication. The transfer gate device comprises a dielectric layer formed on a substrate and a dual workfunction gate conductor layer formed on the dielectric layer comprising a first conductivity type doped region and an abutting second conductivity type doped region. The transfer gate device defines a channel region where charge accumulated by a photosensing device is transferred to a diffusion region. A silicide structure is formed atop the dual workfunction gate conductor layer for electrically coupling the first and second conductivity type doped regions. In one embodiment, the silicide contact is smaller in area dimension than an area dimension of said dual workfunction gate conductor layer. Presence of the silicide strap prevents the diodic behavior from allowing one or the other side of the gate to float to an indeterminate voltage.

    Abstract translation: 具有双功能转移栅极器件和制造方法的CMOS有源像素传感器(APS)单元结构。 传输栅极器件包括形成在衬底上的电介质层和形成在包括第一导电类型掺杂区和邻接第二导电类型掺杂区的电介质层上的双功函数栅导体层。 传输门装置限定了由光敏装置累积的电荷被传送到扩散区的沟道区。 在双功函数栅极导体层顶部形成硅化物结构,用于电耦合第一和第二导电类型掺杂区域。 在一个实施例中,硅化物接触面积尺寸小于所述双功函数栅极导体层的面积尺寸。 硅化物带的存在防止了双极性行为允许栅极的一侧或另一侧浮动到不确定的电压。

    CMOS imager photodiode with enhanced capacitance
    36.
    发明授权
    CMOS imager photodiode with enhanced capacitance 失效
    具有增强电容的CMOS成像光电二极管

    公开(公告)号:US07659564B2

    公开(公告)日:2010-02-09

    申请号:US11276085

    申请日:2006-02-14

    Abstract: A pixel sensor cell having a semiconductor substrate having a surface; a photosensitive element formed in a substrate having a non-laterally disposed charge collection region entirely isolated from a physical boundary including the substrate surface. The photosensitive element comprises a trench having sidewalls formed in the substrate of a first conductivity type material; a first doped layer of a second conductivity type material formed adjacent to at least one of the sidewalls; and a second doped layer of the first conductivity type material formed between the first doped layer and the at least one trench sidewall and formed at a surface of the substrate, the second doped layer isolating the first doped layer from the at least one trench sidewall and the substrate surface. In a further embodiment, an additional photosensitive element is provided that includes a laterally disposed charge collection region that contacts the non-laterally disposed charge collection region of the photosensitive element and underlies the doped layer formed at the substrate surface.

    Abstract translation: 一种像素传感器单元,具有具有表面的半导体衬底; 形成在具有与包括基板表面的物理边界完全隔离的非横向布置的电荷收集区域的基板中的感光元件。 感光元件包括具有形成在第一导电类型材料的衬底中的侧壁的沟槽; 与所述侧壁中的至少一个相邻形成的第二导电类型材料的第一掺杂层; 以及形成在所述第一掺杂层和所述至少一个沟槽侧壁之间并形成在所述衬底的表面处的所述第一导电类型材料的第二掺杂层,所述第二掺杂层将所述第一掺杂层与所述至少一个沟槽侧壁隔离, 基材表面。 在另一个实施例中,提供附加的光敏元件,其包括横向设置的电荷收集区域,其接触感光元件的非横向设置的电荷收集区域,并且位于在衬底表面形成的掺杂层的下方。

    Body potential imager cell
    37.
    发明授权
    Body potential imager cell 有权
    身体潜在成像器细胞

    公开(公告)号:US07538373B2

    公开(公告)日:2009-05-26

    申请号:US11765485

    申请日:2007-06-20

    Abstract: An imaging circuit, an imaging sensor, and a method of imaging. The imaging cell circuit including one or more imaging cell circuits, each imaging cell circuit comprising: a transistor having a floating body for holding charge generated in the floating body in response to exposure of the floating body to electromagnetic radiation; means for biasing the transistor wherein an output of the transistor is responsive to the electromagnetic radiation; and means for selectively connecting the floating body to a reset voltage supply.

    Abstract translation: 成像电路,成像传感器和成像方法。 所述成像单元电路包括一个或多个成像单元电路,每个成像单元电路包括:晶体管,具有浮动体,用于响应于浮体暴露于电磁辐射而保持在浮体中产生的电荷; 用于偏置晶体管的装置,其中晶体管的输出响应于电磁辐射; 以及用于选择性地将浮动体连接到复位电压源的装置。

    Image sensor cells
    38.
    发明授权
    Image sensor cells 有权
    图像传感器单元

    公开(公告)号:US07205627B2

    公开(公告)日:2007-04-17

    申请号:US10906510

    申请日:2005-02-23

    Abstract: A structure (and method for forming the same) for an image sensor cell. The structure includes (a) a semiconductor substrate; (b) a charge collection well on the substrate, the charge collection well comprising a semiconductor material doped with a first doping polarity; (c) a surface pinning layer on and in direct physical contact with the charge collection well, the surface pinning layer comprising a semiconductor material doped with a second doping polarity opposite to the first doping polarity; and (d) an electrically conducting push electrode being in direct physical contact with the surface pinning layer but not being in direct physical contact with the charge collection well.

    Abstract translation: 用于图像传感器单元的结构(及其形成方法)。 该结构包括(a)半导体衬底; (b)在所述衬底上的电荷收集阱,所述电荷收集阱包括掺杂有第一掺杂极性的半导体材料; (c)与电荷收集阱直接物理接触的表面钉扎层,所述表面钉扎层包括掺杂有与第一掺杂极性相反的第二掺杂极性的半导体材料; 和(d)与表面钉扎层直接物理接触但不与电荷收集阱直接物理接触的导电推动电极。

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