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    • 6. 发明授权
    • Solid-state imaging device with high quasi-signal sweep-out efficiency
and high signal charge transfer efficiency
    • 具有高准信号扫频效率和高信号电荷转移效率的固态成像装置
    • US4532549A
    • 1985-07-30
    • US473865
    • 1983-03-10
    • Toshifumi OzakiShinya OhbaIwao TakemotoMasaaki NakaiHaruhisa AndoShusaku NagaharaTakuya ImaideKenji TakahashiToshiyuki Akiyama
    • Toshifumi OzakiShinya OhbaIwao TakemotoMasaaki NakaiHaruhisa AndoShusaku NagaharaTakuya ImaideKenji TakahashiToshiyuki Akiyama
    • H01L27/146H04N5/335H04N5/341H04N5/359H04N5/365H04N5/369H04N5/372H04N5/374H04N5/378H04N5/30
    • H01L27/14643
    • Disclosed is a solid-state imaging device wherein optical information of a number of photo-electric conversion elements arranged in a matrix is read into vertical signal lines by a vertical shift register and then the optical information on the vertical signal lines is horizontally scanned by a horizontal register of a charge transfer device. Bias charge storage means and quasi-signal sweep-out drains are disposed between the horizontal register and the vertical signal lines, and a bias charge input means is arranged in the horizontal register. In order to ensure high efficiency in transferring signals between the vertical lines to the storage means, the sweep-out drains and the charge transfer device, it is arranged for bias charges to be provided at each stage of transfer. Thus, bias charges supplied from the storage means are used to transfer charges from the vertical lines to the storage means. Similarly bias charges directly injected from the quasi-signal sweep-out drains are used to sweep out quasi-signals from the storage means to the quasi-signal sweep-out drains. Finally bias charges supplied from the bias charge input means of the charge transfer device are used to read signals from the storage means into the charge transfer device. By virtue of this, the sweep-out efficiency of the quasi-signals from the capacitances which supply the bias charges and a read-out efficiency of the signal charges are enhanced and a high quality of video signal is produced.
    • 公开了一种固态成像装置,其中以矩阵形式布置的多个光电转换元件的光学信息被垂直移位寄存器读入垂直信号线,然后垂直信号线上的光信息被水平扫描 电荷转移装置的水平寄存器。 偏置电荷存储装置和准信号扫除漏极设置在水平寄存器和垂直信号线之间,偏置电荷输入装置布置在水平寄存器中。 为了确保在垂直线之间向存储装置,扫除漏极和电荷转移装置传输信号的高效率,布置为在每个转移阶段提供偏置电荷。 因此,使用从存储装置提供的偏置电荷将电荷从垂直线传送到存储装置。 类似地,从准信号扫除漏极直接注入的偏置电荷用于将准信号从存储装置扫除到准信号扫除漏极。 最后,从电荷转移装置的偏置电荷输入装置提供的偏置电荷用于从存储装置读取信号到电荷转移装置中。 由此,来自提供偏置电荷的电容的准信号的扫除效率和信号电荷的读出效率被增强,并且产生高质量的视频信号。