Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Approximate Equations and sensitivity for Breakdown Voltages of Cylindrical PN Junctions

원통형 PN 접합의 항복전압에 대한 근사식과 민감도

  • Yun, Jun-Ho (School of Electrical and Computer Engineering, Ajou University) ;
  • Kim, Hae-Mi (School of Electrical and Computer Engineering, Ajou University) ;
  • Choi, Yearn-Ik (School of Electrical and Computer Engineering, Ajou University) ;
  • Jo, Jung-Yol (School of Electrical and Computer Engineering, Ajou University)
  • Published : 2008.10.31
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Abstract

Approximate equations for cylindrical breakdown voltages of planar pn junctions are proposed and verified. The equations show good agreement with the Baliga's results for rj/Wpp${\leq}0.3$ and with numerical results for rj/Wpp${\geq}0.3$ within 1 % error. Sensitivity of the breakdown voltage with respect to the doping concentrations is successfully derived using the approximate equations. The sensitivity formula can be utilized in the area of tolerance design of power semiconductor devices.

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