Hot carrier effect on gate-induced drain leakage current in high-k/metal gate n-channel metal-oxide-semiconductor field-effect transistors

被引:34
|
作者
Dai, Chih-Hao [1 ]
Chang, Ting-Chang [1 ,2 ,3 ]
Chu, Ann-Kuo [1 ]
Kuo, Yuan-Jui [1 ]
Ho, Szu-Han [4 ]
Hsieh, Tien-Yu [2 ]
Lo, Wen-Hung [2 ]
Chen, Ching-En [4 ]
Shih, Jou-Miao [2 ]
Chung, Wan-Lin [2 ]
Dai, Bai-Shan [2 ]
Chen, Hua-Mao [2 ]
Xia, Guangrui [5 ]
Cheng, Osbert [6 ]
Huang, Cheng Tung [6 ]
机构
[1] Natl Sun Yat Sen Univ, Dept Photon, Kaohsiung 804, Taiwan
[2] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 804, Taiwan
[3] Natl Sun Yat Sen Univ, Ctr Nanosci & Nanotechnol, Kaohsiung 804, Taiwan
[4] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu 300, Taiwan
[5] Univ British Columbia, Dept Mat Engn, Vancouver, BC V5Z 1M9, Canada
[6] United Microelect Corp, Device Dept, Hsinchu, Taiwan
关键词
MOSFETS;
D O I
10.1063/1.3608241
中图分类号
O59 [应用物理学];
学科分类号
摘要
This paper investigates the channel hot carrier stress (CHCS) effects on gate-induced drain leakage (GIDL) current in high-k/metal-gate n-type metal-oxide-semiconductor field effect transistors. It was found that the behavior of GIDL current during CHCS is dependent upon the interfacial layer (IL) oxide thickness of high-k/metal-gate stacks. For a thinner IL, the GIDL current gradually decreases during CHCS, a result contrary to that found in a device with thicker IL. Based on the variation of GIDL current at different stress conditions, the trap-assisted band-to-band hole injection model is proposed to explain the different behavior of GIDL current for different IL thicknesses. (C) 2011 American Institute of Physics. [doi:10.1063/1.3608241]
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页数:3
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