Dominant iron gettering mechanism in p/p+ silicon wafers

被引:12
作者
Lin, W [1 ]
Benton, JL
Pinacho, R
Ramappa, DA
Henley, W
机构
[1] Lucent Technol, Microelect, Allentown, PA 18109 USA
[2] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
[3] Univ S Florida, Tampa, FL 33620 USA
关键词
D O I
10.1063/1.126937
中图分类号
O59 [应用物理学];
学科分类号
摘要
Fe gettering mechanisms in p/p(+) epitaxial Si were investigated under controlled contamination and annealing cycles. The dominant Fe gettering mechanism is the Fermi level controlled coulomb attraction between Fe+ and B- in the p(+) substrate of the p/p(+) wafers. Oxygen precipitates do not appear to contribute when using normal cooling rates following heat treatments. The epi-substrate interfacial strain plays no role in Fe gettering. (C) 2000 American Institute of Physics. [S0003-6951(00)05128-7].
引用
收藏
页码:241 / 243
页数:3
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