DOPANT REDISTRIBUTION DURING THE FORMATION OF TUNGSTEN DISILICIDE BY RAPID THERMAL-PROCESSING

被引:1
|
作者
DUPUY, JC
ESSAADANI, A
SIBAI, A
BARBIER, D
机构
[1] Laboratoire de Physique, la Matière associé au CNRS (URA 358), INSA Lyon
关键词
D O I
10.1016/0921-5107(94)90240-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We studied arsenic redistribution with annealing time in the Si-W system during the formation of WSi2 by rapid thermal processing at 850 degrees C. The silicon was arsenic doped and the tungsten was deposited by sputtering. A significant amount of arsenic diffuses back and segregates at the WSi2-Si interface, the remainder is incorporated in the disilicide. This behavior is quite different from that of boron, which diffuses simultaneously to the silicon through the disilicide layer.
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页码:168 / 171
页数:4
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