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    • 6. 发明授权
    • Semiconductor device
    • 半导体器件
    • US08896046B2
    • 2014-11-25
    • US13285450
    • 2011-10-31
    • Kiyoshi Kato
    • Kiyoshi Kato
    • H01L27/108H01L27/105H01L27/115H01L27/06H01L27/12
    • H01L27/108H01L27/0688H01L27/105H01L27/11551H01L27/1156H01L27/1225H01L27/124H01L29/7869
    • Provided is a semiconductor device with a novel structure in which stored data can be retained even when power is not supplied, and which does not have a limitation on the number of writing. The semiconductor device includes both a memory circuit including a transistor including an oxide semiconductor (in a broader sense, a transistor whose off-state current is sufficiently small), and a peripheral circuit such as a driver circuit including a transistor including a material other than an oxide semiconductor (that is, a transistor capable of operating at sufficiently high speed). Further, the peripheral circuit is provided in a lower portion and the memory circuit is provided in an upper portion, so that the area and size of the semiconductor device can be decreased.
    • 提供一种具有新颖结构的半导体器件,其中即使在未提供电力的情况下也可以保留存储的数据,并且对写入次数没有限制。 半导体器件包括包括氧化物半导体(在更广泛的意义上是截止电流足够小的晶体管)的晶体管的存储器电路和包括晶体管的诸如驱动器电路的外围电路,该晶体管包括除了 氧化物半导体(即,能够以足够高的速度运行的晶体管)。 此外,外围电路设置在下部,并且存储电路设置在上部,使得可以减小半导体器件的面积和尺寸。
    • 10. 发明授权
    • Semiconductor device
    • 半导体器件
    • US08542034B2
    • 2013-09-24
    • US13472979
    • 2012-05-16
    • Kiyoshi Kato
    • Kiyoshi Kato
    • H03K19/173H01L25/00
    • H03K19/0013H01L27/12H01L27/1225H03K19/0944
    • As semiconductor devices including semiconductors, logic circuits are given. Logic circuits include dynamic logic circuits and static logic circuits and are formed using transistors and the like. Dynamic logic circuits can store data for a certain period of time. Thus, leakage current from transistors causes more severe problems in dynamic logic circuits than in static logic circuits. A logic circuit includes a first transistor whose off-state current is small and a second transistor whose gate is electrically connected to the first transistor. Electric charge is supplied to a node of the gate of the second transistor through the first transistor. Electric charge is supplied to the node through a first capacitor and a second capacitor. On/off of the second transistor is controlled depending on a state of the electric charge. The first transistor includes an oxide semiconductor in a channel formation region.
    • 作为包括半导体的半导体器件,给出了逻辑电路。 逻辑电路包括动态逻辑电路和静态逻辑电路,并且使用晶体管等形成。 动态逻辑电路可以存储一段时间的数据。 因此,来自晶体管的漏电流在动态逻辑电路中产生比在静态逻辑电路中更严重的问题。 逻辑电路包括其截止电流较小的第一晶体管和栅极与第一晶体管电连接的第二晶体管。 通过第一晶体管将电荷提供给第二晶体管的栅极的节点。 电荷通过第一电容器和第二电容器提供给节点。 根据电荷的状态来控制第二晶体管的开/关。 第一晶体管包括沟道形成区中的氧化物半导体。