An asymmetric dual gate poly-si TFTs for improving hot carrier stress stability and kink effect suppression

被引:0
作者
Park, Joong Hyun [1 ]
Nam, Woo Jin [1 ]
Lee, Jae Hoon [1 ]
Han, Min Koo [1 ]
机构
[1] Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South Korea
来源
Amorphous and Polycrystalline Thin-Film Silicon Science and Technology 2006 | 2007年 / 910卷
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D O I
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
An asymmetric dual gate poly-Si thin film transistor (TFT), which consists of a long-gate TFT and a short-gate TFT, was fabricated in order to suppress the kink current and increase the reliability under the electrical stress. The asymmetric dual-gate does not exhibit the kink current in a high drain bias because the long-gate TFT operates in the linear regime and limits the total current. The asymmetric dual-gate structure improves kink-free characteristics compared with single and symmetric dual-gate TFT. The hot-carrier stress reliability is successfully improved due to kink current suppression.
引用
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页码:609 / 614
页数:6
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