发明授权
- 专利标题: Semiconductor device including a current mirror circuit
- 专利标题(中): 包括电流镜电路的半导体器件
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申请号: US12707772申请日: 2010-02-18
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公开(公告)号: US09041112B2公开(公告)日: 2015-05-26
- 发明人: Atsushi Hirose
- 申请人: Atsushi Hirose
- 申请人地址: JP Atsugi-shi, Kanagawa-ken
- 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: JP Atsugi-shi, Kanagawa-ken
- 代理机构: Robinson Intellectual Property Law Office, P.C.
- 代理商 Eric J. Robinson
- 优先权: JP2006-126017 20060428
- 主分类号: H01L21/84
- IPC分类号: H01L21/84 ; H03F1/08 ; G05F3/26 ; H01L27/12
摘要:
In a semiconductor device, where, with respect to a parasitic resistor in a current mirror circuit, a compensation resistor for compensating the parasitic resistor is provided in the current mirror circuit, the current mirror circuit includes at least two thin film transistors. The thin film transistors each have an island-shaped semiconductor film having a channel formation region and source or drain regions, a gate insulating film, a gate electrode, and source or drain electrodes, and the compensation resistor compensates the parasitic resistor of any one of the gate electrode, the source electrode, and the drain electrode. In addition, each compensation resistor has a conductive layer containing the same material as the gate electrode, the source or drain electrodes, or the source or drain regions.
公开/授权文献
- US20100140456A1 SEMICONDUCTOR DEVICE 公开/授权日:2010-06-10
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