A new method for determination of parasitic capacitances for PHEMTs

  • Jianjun Gao*
  • , Xiuping Li
  • , Hong Wang
  • , Georg Boeck
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

A new direct extraction method for the determination of the parasitic capacitances of PHEMTs is presented in this paper. This method is based on a general scalable small signal equivalent circuit model under pinch-off bias condition. The main advantage of this approach is that all parasitic capacitances including Cpg, Cpd and Cpgd can be extracted simultaneously by using PHEMTs of different sizes but with the same pad structure. Good agreement is obtained between modelled and measured results for 2 × 20 νm, 2 × 40 νm, 2 × 60 νm and 2 × 100 νm gate width (number of gate fingers × unit gate width) double heterojunction δ-doped PHEMTs.

Original languageEnglish
Pages (from-to)586-591
Number of pages6
JournalSemiconductor Science and Technology
Volume20
Issue number6
DOIs
StatePublished - 1 Jun 2005
Externally publishedYes

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