A new method to determine parasitic capacitances for HEMTs

Li Shen, Bo Chen, Caiyun Fan, Jianjun Gao

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A new direct extraction method for the determination of the parasitic capacitances of HEMTs is presented in this article. This method is based on a physically meaningful depletion-layer model and the theoretical analysis of the two-port network for the pinch-off cold FETs. The main advantage of this approach is that parasitic capacitance Cpg, Cpd, and Cpdg can be extracted under different pinch-off conditions. Good agreement is obtained between modeled and measured results for 2 × 20 μm gate width HEMT (number of gate fingers × unit gate width).

Original languageEnglish
Pages (from-to)3005-3007
Number of pages3
JournalMicrowave and Optical Technology Letters
Volume55
Issue number12
DOIs
StatePublished - Dec 2013

Keywords

  • Cold FET
  • HEMT
  • pinch-off

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