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    题名: Epitaxial growth of uniform NiSi(2) layers with atomically flat silicide/Si interface by solid-phase reaction in Ni-P/Si(100) systems
    作者: Hsu,HF;Chan,HY;Chen,TH;Wu,HY;Cheng,SL;Wu,FB
    贡献者: 化學工程與材料工程學系
    关键词: NI SILICIDE;FILMS;INTERLAYER
    日期: 2011
    上传时间: 2012-03-27 16:27:00 (UTC+8)
    出版者: 國立中央大學
    摘要: As metal-oxide-semiconductor field-effect transistor (MOSFET) devices are shrunk to the nanometer scale, flat shallow metal/Si electrical contacts must be formed in the source/drain region. This work demonstrates a method for the formation of epitaxial NiSi(2) layers by a solid-phase reaction in Ni-P(8 nm)/Si(1 0 0) samples. The results show that the sheet resistance remained low when the samples were annealed at temperatures from 400 to 700 degrees C. P atoms can be regarded as diffusion barriers against the supply of Ni to the Si substrate, which caused the formation of Si-rich silicide (NiSi(2)) at low temperature. Furthermore, elemental P formed a stable capping layer with O, Ni and Si during the annealing process. A uniform NiSi(2) layer with an atomically flat interface was formed by annealing at 700 degrees C because of the formation of a Si-Ni-P-O capping layer and a reduction in the total interface area. (C) 2011 Elsevier B.V. All rights reserved.
    關聯: APPLIED SURFACE SCIENCE
    显示于类别:[化學工程與材料工程學系 ] 期刊論文

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