Low Schottky barrier source/drain for advanced MOS architecture: device design and material considerations

被引:41
作者
Dubois, E [1 ]
Larrieu, G [1 ]
机构
[1] IEMN, ISEN, CNRS, UMRS 8520, F-59652 Villeneuve Dascq, France
关键词
D O I
10.1016/S0038-1101(02)00033-3
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
An alternative MOSFET architecture based on the use of low barrier Schottky source/drain (S/D) contacts coupled to a thin silicon-on-insulator (Sol) film is described. Two-dimensional device simulations are used to demonstrate the advantage of low Schottky barrier S/D over conventional implanted technologies in terms of current drive capabilities. It is shown that the silicide penetration in the silicon does not increase the contact resistance for this structure while a severe degradation of the current drive is observed for conventional MOS architectures. Experiments conducted on Pt/ Ge metallic stacks on p-type silicon show that very low Schottky barriers to hole can be obtained (similar to50 meV). (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:997 / 1004
页数:8
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