SEMICONDUCTOR DEVICE
    47.
    发明公开
    SEMICONDUCTOR DEVICE 审中-公开
    半导体器件

    公开(公告)号:EP2494597A1

    公开(公告)日:2012-09-05

    申请号:EP10826501.8

    申请日:2010-10-05

    摘要: It is an object to provide a semiconductor having a novel structure. In the semiconductor device, a plurality of memory elements are connected in series and each of the plurality of memory elements includes first to third transistors thus forming a memory circuit. A source or a drain of a first transistor which includes an oxide semiconductor layer is in electrical contact with a gate of one of a second and a third transistor. The extremely low off current of a first transistor containing the oxide semiconductor layer allows storing, for long periods of time, electrical charges in the gate electrode of one of the second and the third transistor, whereby a substantially permanent memory effect can be obtained. The second and the third transistors which do not contain an oxide semiconductor layer allow high-speed operations when using the memory circuit.

    摘要翻译: 目的是提供具有新颖结构的半导体。 在半导体器件中,多个存储元件串联连接,并且多个存储元件中的每一个包括第一至第三晶体管,从而形成存储电路。 包括氧化物半导体层的第一晶体管的源极或漏极与第二和第三晶体管中的一个的栅极电接触。 包含氧化物半导体层的第一晶体管的非常低的截止电流允许长时间地在第二晶体管和第三晶体管之一的栅极中存储电荷,由此可以获得基本上永久的记忆效应。 不包含氧化物半导体层的第二和第三晶体管在使用存储器电路时允许高速操作。