標題: | LOW-TEMPERATURE GROWTH OF SILICON-BORON LAYER BY ULTRAHIGH-VACUUM CHEMICAL-VAPOR-DEPOSITION |
作者: | CHEN, TP LEI, TF LIN, HC CHANG, CY HSIEH, WY CHEN, LJ 材料科學與工程學系 電子工程學系及電子研究所 Department of Materials Science and Engineering Department of Electronics Engineering and Institute of Electronics |
公開日期: | 4-四月-1994 |
摘要: | A polycrystalline silicon-boron (Si-B) layer with a thickness of 180 nm was grown on recrystallized amorphous silicon in an ultrahigh vacuum chemical vapor deposition (UHV/CVD) system using pure SiH4 and B2H6 (1% in H-2). The growth temperature was as low as 550-degrees-C. Auger electron spectroscopy and secondary ion mass spectroscopy showed that the boron concentration is extraordinarily high (2 x 10(22) cm-3). From the analysis of transmission electron diffraction patterns, the phase of silicon hexaboride (SiB6) was found to be present in the as-deposited Si-B layer. After thermal annealing, most of the boron atoms in the Si-B layer were found to be immobile. The presence of SiB6 in the Si-B layer may lead to the reduction of boron diffusivity in the Si-B layer during thermal annealing. |
URI: | http://dx.doi.org/10.1063/1.111777 http://hdl.handle.net/11536/2538 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.111777 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 64 |
Issue: | 14 |
起始頁: | 1853 |
結束頁: | 1855 |
顯示於類別: | 期刊論文 |