SHORT-TIME DIFFUSION OF ZINC IN SILICON FOR THE STUDY OF INTRINSIC POINT-DEFECTS

被引:13
作者
BRACHT, H [1 ]
STOLWIJK, NA [1 ]
MEHRER, H [1 ]
YONENAGA, I [1 ]
机构
[1] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 980,JAPAN
关键词
D O I
10.1063/1.106393
中图分类号
O59 [应用物理学];
学科分类号
摘要
An experimental procedure has been developed which permits accurate short-time diffusion anneals for diffusion periods as short as a few seconds. This method is applicable to diffusors which are volatile at the diffusion temperature. It will be illustrated for zinc diffusion into silicon which mainly takes place via the kick-out mechanism. Previous long-time diffusion studies have yielded the product C(I)eqD(I) of equilibrium concentration and diffusivity of Si self-interstitials(I) involved in the interstitial-substitutional exchange of Zn. The present short-time diffusion method enables us to determine C(I)eq and D(I) separately by comparing measured spreading-resistance profiles with computer simulations based on the kick-out model.
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页码:3559 / 3561
页数:3
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