Beneath-the-channel strain-transfer-structure (STS) and embedded source/drain stressors for strain and performance enhancement of nanoscale MOSFETs

被引:13
作者
Ang, Kah-Wee [1 ]
Lin, Jianqiang [1 ]
Tung, Chih-Hang [2 ]
Balasubramanian, N. [2 ]
Samudra, Ganesh [1 ]
Yeo, Yee-Chia [1 ]
机构
[1] Natl Univ Singapore, Dept Elect & Comp Engn, Silicon Nano Device Lab, Singapore 117576, Singapore
[2] Inst Microelect, Singapore 117685, Singapore
来源
2007 SYMPOSIUM ON VLSI TECHNOLOGY, DIGEST OF TECHNICAL PAPERS | 2007年
关键词
D O I
10.1109/VLSIT.2007.4339719
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We report the first demonstration of a novel transistor structure featuring a beneath-the-channel strain-transfer-structure (STS) and embedded source/drain (S/D) stressors for strain and performance enhancement. As compared to a transistor with standard S/D stressors, additional strain is imparted to the channel region by the STS due to coupling of its lattice interactions with the adjacent S/D stressors and the overlying channel region. Both strained n-FET with SiGe STS and silicon-carbon (SiC) S/D, and strained p-FET with SiC STS and SiGe S/D, were realized. The I performance of strained n- and p-FETs with STS and S/D stressors were enhanced by 42% and 60%, respectively, over unstrained control transistors for given DIBL of 0.15 V/V.
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页码:42 / +
页数:2
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