应变硅技术在纳米CMOS中的应用

摘要

应变硅技术具有迁移率高、能带结构可调的优点，且与传统的体硅工艺相兼容，在CMOS工艺中得到广泛地应用，尤其是MOS件的尺寸进入纳米节点。文章综述了应变硅技术对载流子迁移率影响的机理，并从全局应变和局部应变两个方面介绍了应变硅在CMOS器件中的应用。同时，将多种应变硅技术整合在一起提升MOS器件的性能是未来发展的趋势。%Strained silicon technology, which provided with merits of high mobility, modifiable band-gap, compatible with conventional sub-silicon technics, was widely used in CMOS technics, and especially in the nano-meter node CMOS devices. In this text, the principle of carrier mobility ,which influenced by strain,was Simply summarized, and the application of Global strain and Local strain in the nano CMOS technics was introduced. Meanwhile,multi-strain technics would become the trend of improvement of the nano CMOS devices＇ performance in the future.