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Effects of thermal transport properties on temperature distribution within silicon wafer

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Abstract

A combined conduction and radiation heat transfer model was used to simulate the heat transfer within wafer and investigate the effect of thermal transport properties on temperature non-uniformity within wafer surface. It is found that the increased conductivities in both doped and undoped regions help reduce the temperature difference across the wafer surface. However, the doped layer conductivity has little effect on the overall temperature distribution and difference. The temperature level and difference on the top surface drop suddenly when absorption coefficient changes from 104 to 103 m−1. When the absorption coefficient is less or equal to 103 m−1, the temperature level and difference do not change much. The emissivity has the dominant effect on the top surface temperature level and difference. Higher surface emissivity can easily increase the temperature level of the wafer surface. After using the improved property data, the overall temperature level reduces by about 200 K from the basis case. The results will help improve the current understanding of the energy transport in the rapid thermal processing and the wafer temperature monitor and control level.

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Authors and Affiliations

  1. School of Materials and Metallurgy, Northeastern University, Shenyang, 110819, China

    Ai-hua Wang  (王爱华), Yi-hong Niu  (牛义红) & Tie-jun Chen  (陈铁军)

  2. Department of Mechanical and Aerospace Engineering, Florida Institute of Technology, Florida, 32901, USA

    P. F. Hsu

Authors
  1. Ai-hua Wang  (王爱华)
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  2. Yi-hong Niu  (牛义红)
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  3. Tie-jun Chen  (陈铁军)
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  4. P. F. Hsu
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Corresponding author

Correspondence to Ai-hua Wang  (王爱华).

Additional information

Foundation item: Project(N110204015) supported by the Fundamental Research Funds for the Central Universities, China; Project(2012M510075) supported by the China Postdoctoral Science Foundation.

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Wang, Ah., Niu, Yh., Chen, Tj. et al. Effects of thermal transport properties on temperature distribution within silicon wafer. J. Cent. South Univ. 21, 1402–1410 (2014). https://doi.org/10.1007/s11771-014-2078-1

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  • DOI: https://doi.org/10.1007/s11771-014-2078-1

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