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    • 4. 发明申请
    • Solid state image sensor with fixed pattern noise reduction
    • 固态图像传感器具有固定图案降噪功能
    • US20050088548A1
    • 2005-04-28
    • US10627055
    • 2003-07-25
    • Ryoji SuzukiTakahisa UenoKoichi ShionoKazuya Yonemoto
    • Ryoji SuzukiTakahisa UenoKoichi ShionoKazuya Yonemoto
    • H04N5/225H04N5/335H04N5/357H04N5/359H04N5/363H04N5/365H04N5/374H04N5/3745H04N5/376H04N5/378H04N5/217
    • H04N5/378H04N5/335H04N5/3575H04N5/3597H04N5/363H04N5/365H04N5/3658H04N5/374H04N5/3745
    • A solid-state image sensor comprises unit pixels each having a photoelectric conversion element for converting incident light into electric signal charge and then storing the signal charge obtained through such photoelectric conversion, an amplifying element for converting into an electric signal the signal charge stored in the photoelectric conversion element, and a select switch for selectively outputting the pixel signal from the amplifying element to a signal line. The image sensor further comprises a reset circuit in each of the unit pixels for resetting the photoelectric conversion element every time a pixel signal is outputted from the relevant unit pixel. The photoelectric conversion element is reset every time a pixel signal is outputted, so that a pre-reset signal and a post-reset signal are delivered from each unit pixel and then are transferred via a common path, and the difference between such signals is taken to suppress not only the fixed pattern noise derived from characteristic deviation in each unit pixel but also vertically correlated fixed pattern noises of vertical streaks.
    • 固态图像传感器包括单位像素,每个单元具有光电转换元件,用于将入射光转换为电信号电荷,然后存储通过这种光电转换获得的信号电荷;放大元件,用于将存储在 光电转换元件,以及用于选择性地将来自放大元件的像素信号输出到信号线的选择开关。 图像传感器还包括每个单位像素中的复位电路,用于在每次从相关单位像素输出像素信号时复位光电转换元件。 光电转换元件在每次输出像素信号时复位,从而从每个单位像素传送预复位信号和复位后信号,然后通过公共路径传输,并且采用这种信号之间的差异 不仅抑制来自每个单位像素中的特征偏差的固定模式噪声,而且抑制垂直条纹的垂直相关的固定模式噪声。
    • 7. 发明授权
    • CCD image sensing device having a p-well region with a high impurity
concentration
    • CCD图像感测装置具有杂质浓度高的p阱区域
    • US5293237A
    • 1994-03-08
    • US880904
    • 1992-05-08
    • Kazuya Yonemoto
    • Kazuya Yonemoto
    • H01L27/148H04N5/335H04N5/341H04N5/359H04N5/361H04N5/369H04N5/3722
    • H01L27/14831
    • A CCD image sensing device has vertical shift registers (22), a horizontal shift register (3A), a horizontal transfer gate (4), a horizontal shift register (3B), a smear gate (6), a smear drain region (7) and a channel stop region (8) arranged in that order on an n-type substrate (N-Sub). A p-well region underlying the vertical shift registers (22), the horizontal shift register (3A), the horizontal transfer gate (4), the horizontal shift register (3B) the smear gate (6), the smear drain region (7) and the channel stop region (8) is doped in a high impurity concentration to stabilize the potential of the p-well region at a potential substantially equal to that of the channel stop region (8), i.e., ground potential (GND). Consequently, no hole storage region is formed in the p-well and hence the deterioration of the signal transfer performance can be prevented. Since no hole-depletion region is created, no dark current due to avalanche is produced.
    • CCD图像感测装置具有垂直移位寄存器(22),水平移位寄存器(3A),水平传输门(4),水平移位寄存器(3B),污迹门(6),污迹漏区(7) )和在n型衬底(N-Sub)上依次排列的通道停止区域(8)。 垂直移位寄存器(22),水平移位寄存器(3A),水平传输门(4),水平移位寄存器(3B),污迹门(6),污迹漏区(7) ),并且沟道停止区域(8)以高杂质浓度掺杂以将p阱区域的电位稳定在与沟道停止区域(8)的电位基本相等的电位,即接地电位(GND)。 因此,在p阱中不形成空穴存储区域,因此可以防止信号传递性能的劣化。 由于不产生空穴耗尽区域,所以不产生由于雪崩导致的暗电流。
    • 8. 发明授权
    • Solid-state charge-coupled-device imager
    • 固态电荷耦合器件成像器
    • US5237191A
    • 1993-08-17
    • US787643
    • 1991-11-04
    • Kazuya YonemotoKazunori Tsukigi
    • Kazuya YonemotoKazunori Tsukigi
    • H01L21/339H01L27/148H01L29/762H04N1/028H04N5/335H04N5/341H04N5/3728
    • H01L27/14831
    • A solid-state charge-coupled-device imager has an imaging region composed of a matrix of vertically and horizontally arrayed photosensitive areas for storing signal charges depending on the intensity of applied light, and a plurality of vertical shift resisters for vertically transferring the signal charges shifted from the photosensitive areas. The signal charges from the vertical shift registers are shifted to a horizontal shift register that transfers the signal charges in a horizontal direction. The horizontal shift register comprises a plurality of charge transfer electrodes horizontally spaced at predetermined intervals. The charge transfer electrodes are inclined to the horizontal direction. The charge transfer electrodes may be inclined linearly in their entirety to the horizontal direction or may be of a chevron shape.
    • 固态电荷耦合器件成像器具有由垂直和水平阵列的感光区域的阵列组成的成像区域,用于根据所施加的光的强度存储信号电荷;以及多个垂直移位寄存器,用于垂直传送信号电荷 从感光区转移。 来自垂直移位寄存器的信号电荷被移动到在水平方向上传送信号电荷的水平移位寄存器。 水平移位寄存器包括以预定间隔水平隔开的多个电荷转移电极。 电荷转移电极相对于水平方向倾斜。 电荷转移电极可以在整个水平方向上线性地倾斜,或者可以是人字形。