基本信息:
- 专利标题： Semiconductor device
- 申请号：EP11180109.8 申请日：2011-09-06
- 公开(公告)号：EP2428959B1 公开(公告)日：2018-05-30
- 发明人： Matsuzaki, Takanori , Nagatsuka, Shuhei , Inoue, Hiroki
- 申请人： Semiconductor Energy Laboratory Co, Ltd.
- 申请人地址： 398, Hase, Atsugi-shi, Kanagawa, 243-0036 JP
- 专利权人： Semiconductor Energy Laboratory Co, Ltd.
- 当前专利权人： Semiconductor Energy Laboratory Co, Ltd.
- 当前专利权人地址： 398, Hase, Atsugi-shi, Kanagawa, 243-0036 JP
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： JP2010204419 20100913
- 主分类号： G11C8/08
- IPC分类号： G11C8/08 ; G11C11/403 ; G11C11/405 ; G11C11/408 ; G11C16/02
摘要：
A semiconductor device in which stored data can be held even when power is not supplied and there is no limitation on the number of writing operations is provided. A semiconductor device is formed using a material which can sufficiently reduce the off-state current of a transistor, such as an oxide semiconductor material that is a wide-gap semiconductor. When a semiconductor material which can sufficiently reduce the off-state current of a transistor is used, the semiconductor device can hold data for a long period. In addition, by providing a capacitor or a noise removal circuit electrically connected to a write word line, a signal such as a short pulse or a noise input to a memory cell can be reduced or removed. Accordingly, a malfunction in which data written into the memory cell is erased when a transistor in the memory cell is instantaneously turned on can be prevented.
公开/授权文献:
- EP2428959A1 Semiconductor device 公开/授权日：2012-03-14
IPC结构图谱:
| G | 物理 |
| --G11 | 信息存储 |
| ----G11C | 静态存储器 |
| ------G11C8/00 | 数字存储器中用于地址选择的装置 |
| --------G11C8/08 | .字线控制电路，例如，用于字线的驱动器、增强器、上拉电路、下拉电路、预充电电路 |