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 language | English |
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| Pages (from-to) | 586-591 |
| Number of pages | 6 |
| Journal | Semiconductor Science and Technology |
| Volume | 20 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1 Jun 2005 |
| Externally published | Yes |