Abstract
We present our latest results on L g = 87 nm InAlAs/InGaAs high-electron-mobility transistors with an excellent combination of dc and high-frequency characteristics. We obtained a maximum transconductance of 3 S/mm at V DS = 0.9 V, an ON-resistance of 273 Ω - μ m, a current gain cutoff frequency of 559 GHz, and a maximum oscillation frequency of 671 GHz. According to small-signal modeling, these outstanding device metrics are a consequence of the indium-rich InGaAs channel with very high Hall mobility, compact device design with L SD= 1 μm, and an optimized gate process that yields well-tempered behavior.
| Original language | English |
|---|---|
| Article number | 8468210 |
| Pages (from-to) | 1640-1643 |
| Number of pages | 4 |
| Journal | IEEE Electron Device Letters |
| Volume | 39 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2018 |
Keywords
- and maximum oscillation frequency (fmax)
- current gain cut-off frequency (fT)
- InGaAs HEMT