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    • 3. 发明公开
    • Image sensor driving method with high-speed voltage response
    • Verfahren zum Betrieb eines Bildabtasters mit hoher Spannungsansprechgeschwindigkeit。
    • EP0371485A2
    • 1990-06-06
    • EP89122013.9
    • 1989-11-29
    • KABUSHIKI KAISHA TOSHIBA
    • Suzuki, KouheiTanuma, ChiakiTakayama, SatoshiMori, Kenichi
    • H04N3/15
    • H04N5/3692
    • In an image sensor, not only a photo-responsive characteristic but also a voltage response characteristic are improved. A method for driving an image sensor including: a pair of first and second main electrodes (16: 17) fabricated on a semiconductor layer (14) in such a manner that the first and second main electrodes (16: 17) are separated with each other via a light receiving region; an insulting layer (13) stacked on the semiconductor layer (14); and an auxiliary electrode (12) stacked on said insulating layer (13), comprises the steps of: applying a constant bias voltage (-V₁₁) to the auxiliary electrode (12) over both a read time period (T₁) and a non-read time period (T₀) of a signal current (I D ) of the image sensor; applying to the first main electrode (16), a drive voltage pulse (-V₁₀) by which a carrier injection into the semiconductor layer (14) is accelerated to vary a potential at the first main electrode (16) with respect to the auxiliary electrode (12) at least during the read time period (T₀) of the signal current (I D ); and, deriving the signal current (I D ) from the second main electrode (17) during only the read time period (T₁) of the signal current (I D ).
    • 在图像传感器中,不仅光响应特性而且电压响应特性得到改善。 一种用于驱动图像传感器的方法,包括:以半导体层(14)制造的一对第一和第二主电极(16:17),使得第一和第二主电极(16:17)分别与第 其他经由光接收区域; 堆叠在所述半导体层(14)上的绝缘层(13); 以及堆叠在所述绝缘层(13)上的辅助电极(12)包括以下步骤:在读取时间段(T1)和非易失性存储器件(T1)上向辅助电极(12)施加恒定偏压(-V11) 图像传感器的信号电流(ID)的读取时间段(T0); 施加到第一主电极(16)的驱动电压脉冲(-V10),通过该驱动电压脉冲(-V10)加速向半导体层(14)的载流子注入,以改变第一主电极(16)相对于辅助电极 (12)至少在信号电流(ID)的读取时间段(T0)期间; 并且仅在信号电流(ID)的读取时间段(T1)期间从第二主电极(17)导出信号电流(ID)。