MORPHOLOGY OF PLATINUM SILICIDE FILMS PREPARED BY CONVENTIONAL AND RAPID THERMAL ANNEALING AND DEEP LEVELS INDUCED IN SILICON

被引:14
作者
DIMITRIADIS, CA [1 ]
POLYCHRONIADIS, EK [1 ]
EVANGELOU, EK [1 ]
GIAKOUMAKIS, GE [1 ]
机构
[1] UNIV IOANNINA,DEPT PHYS,GR-45332 IOANNINA,GREECE
关键词
D O I
10.1063/1.349289
中图分类号
O59 [应用物理学];
学科分类号
摘要
Electron microscopic studies and the electrical properties of Pt contacts on n-type Si annealed by conventional furnace and rapid thermal annealing (RTA) were investigated with scanning electron microscopy, transmission electron microscopy, x-ray analysis, capacitance-voltage, and deep-level transient spectroscopy measurements. An incomplete reaction between Pt and Si is observed after furnace annealing at 550-degrees-C due to the presence of oxygen in the ambient. An almost complete reaction between Pt and Si is achieved after silicidation by RTA at 550-degrees-C. An acceptorlike level located 0.11 eV below the conductionband edge with a concentration of 2 x 10(13) cm-3 is detected only after furnace annealing at 550-degrees-C. Silicidation by RTA at 550-degrees-C does not introduce traps in the Si band gap.
引用
收藏
页码:3109 / 3114
页数:6
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