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    • 7. 发明授权
    • Method of making a charge coupled device
    • 制造电荷耦合器件的方法
    • US5302543A
    • 1994-04-12
    • US981846
    • 1992-11-25
    • Kiyohiko Sakakibara
    • Kiyohiko Sakakibara
    • H01L29/10H01L21/76
    • H01L29/1062Y10S438/965
    • A charge coupled device includes a second conductivity type first horizontal channel in a first conductivity type semiconductor substrate, a second conductivity type second horizontal channel in the substrate at a predetermined distance from the first horizontal channel, and a second conductivity type transfer channel connecting the first horizontal channel with the second horizontal channel to enable transfer of charges from the first horizontal channel to the second horizontal channel. The pinning potential of the transfer channel is larger in absolute value than the pinning potential of the first and second horizontal channels, and the gate voltage pinning the transfer channel is smaller in absolute value than the gate voltage pinning the first and second horizontal channels. Therefore, the charges in the first horizontal channel can be transferred to the transfer channel by a gate voltage pinning the horizontal channel and the charges can be transferred from the first horizontal channel to the second horizontal channel by clock signals.
    • 电荷耦合器件包括第一导电类型半导体衬底中的第二导电类型的第一水平沟道,以及距离第一水平沟道预定距离的衬底中的第二导电类型的第二水平沟道;以及第二导电类型传输沟道, 水平通道与第二水平通道,以使电荷能够从第一水平通道转移到第二水平通道。 传输通道的钉扎电位的绝对值大于第一和第二水平通道的钉扎电位,并且固定传输沟道的栅极电压的绝对值小于固定第一和第二水平通道的栅极电压。 因此,第一水平通道中的电荷可以通过锁定水平通道的栅极电压传送到传输通道,并且可以通过时钟信号将电荷从第一水平通道传送到第二水平通道。
    • 9. 发明授权
    • Semiconductor device having a solid-state image sensor
    • 具有固态图像传感器的半导体器件
    • US06566678B1
    • 2003-05-20
    • US10121699
    • 2002-04-15
    • Atsushi MaedaKiyohiko Sakakibara
    • Atsushi MaedaKiyohiko Sakakibara
    • H01L2906
    • H01L27/14601H01L27/14603H01L27/1463
    • A semiconductor device having a solid-state image sensor is provided in which the leakage current is less likely to occur. The surface portion of a P-type semiconductor substrate (1) is susceptible to various defects, which are likely to cause the leakage current. Accordingly an N-type buried channel layer (7a) is provided. While the potential is high in the vicinity of the surface of the P-type semiconductor substrate (1) where defects are present, the potential is minimized in the vicinity of the PN junction plane formed by the N-type buried channel layer (7a) and the P-type semiconductor substrate (1). Accordingly, when a transfer switch (M1) is operated, a channel is formed in the vicinity of this PN junction plane, so that a charge stored in an N-type source region (4a) of the photodiode (PD) can be transferred to an N-type drain region (5) without suffering leakage current.
    • 提供了具有固态图像传感器的半导体器件,其中不太可能发生漏电流。 P型半导体衬底(1)的表面部分易受到可能导致漏电流的各种缺陷的影响。 因此,提供了N型掩埋沟道层(7a)。 虽然在存在缺陷的P型半导体衬底(1)的表面附近的电位高,但是在由N型掩埋沟道层(7a)形成的PN结面附近,电位最小化, 和P型半导体衬底(1)。 因此,当转移开关(M1)被操作时,在该PN结面附近形成通道,从而可以将存储在光电二极管(PD)的N型源极区域(4a)中的电荷转移到 没有漏电流的N型漏极区域(5)。
    • 10. 发明授权
    • Charge coupled device
    • 电荷耦合器件
    • US5189498A
    • 1993-02-23
    • US608387
    • 1990-11-02
    • Kiyohiko Sakakibara
    • Kiyohiko Sakakibara
    • H01L29/10
    • H01L29/1062
    • A charge coupled device includes a second conductivity type first horizontal channel in a first conductivity type semiconductor substrate, a second conductivity type second horizontal channel in the substrate at a predetermined distance from the first horizontal channel, and a second conductivity type transfer channel connecting the first horizontal channel with the second horizontal channel to enable transfer of charges from the first horizontal channel to the second horizontal channel. The pinning potential of the transfer channel is larger in absolute value than the pinning potential of the first and second horizontal channels, and the gate voltage pinning the transfer channel is smaller in absolute value than the gate voltage pinning the first and second horizontal channels. Therefore, the charges in the first horizontal channel can be transferred to the transfer channel by a gate voltage pinning the horizontal channel and the charges can be transferred from the first horizontal channel to the second horizontal channel by clock signals.
    • 电荷耦合器件包括第一导电类型半导体衬底中的第二导电类型的第一水平沟道,以及距离第一水平沟道预定距离的衬底中的第二导电类型的第二水平沟道;以及第二导电类型传输沟道, 水平通道与第二水平通道,以使电荷能够从第一水平通道转移到第二水平通道。 传输通道的钉扎电位的绝对值大于第一和第二水平通道的钉扎电位,并且固定传输沟道的栅极电压的绝对值小于固定第一和第二水平通道的栅极电压。 因此,第一水平通道中的电荷可以通过锁定水平通道的栅极电压传送到传输通道,并且可以通过时钟信号将电荷从第一水平通道传送到第二水平通道。