Effects of Thermal Annealing on the Formation of Buried β-SiC by Ion Implantation

被引:5
|
作者
Poudel, P. R. [1 ]
Rout, B. [1 ]
Diercks, D. R. [2 ]
Paramo, J. A. [3 ]
Strzhemechny, Y. M. [3 ]
Mcdaniel, F. D. [1 ]
机构
[1] Univ N Texas, Dept Phys, Ion Beam Modificat & Anal Lab, Denton, TX 76203 USA
[2] Colorado Sch Mines, Dept Met & Mat Engn, Golden, CO 80401 USA
[3] Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA
关键词
SiC; ion implantation; amorphization; SILICON-CARBIDE; BEAM SYNTHESIS; CARBON IMPLANTATION; GROWTH; LAYERS; TECHNOLOGY; EMISSION; FIELD; ELECTRONICS; RESOLUTION;
D O I
10.1007/s11664-011-1695-9
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
A systematic study of the formation of buried beta-SiC structures by carbon ion implantation into Si followed by high-temperature thermal annealing has been carried out. A high fluence of carbon ions (8 9 10 17 atoms/cm(2)) was implanted at 65 keV energy. Formation of the crystalline beta-SiC phase was monitored by Fourier-transform infrared (FTIR) spectroscopy, x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM) techniques. The implanted samples were annealed at 900 degrees C and 1100 degrees C to observe the effects of annealing temperature on the formation of crystalline beta-SiC. Formation of crystalline beta-SiC was clearly observed in the sample annealed at 1100 degrees C in a flowing nitrogen environment for a period of 1 h. Graphitic carbon clusters were observed at the implanted carbon profile peak position by XPS depth profile measurements. Various structural defects such as grain boundaries were also visualized in the annealed sample by high-resolution TEM.
引用
收藏
页码:1998 / 2003
页数:6
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