Abstract
We report the first experiment of electron cyclotron resonance (ECR) hydrogen (H) and nitrogen (N) plasma surface passivation on the AlGaAs/GaAs heterojunction bipolar transistor (HBT). As a result of the plasma processing, the base current ideality factor is improved from 2.67 to 1.96, and the maximum current gain is increased from 720 to 1000. In the low-current regime, the base current is reduced by two orders of magnitude. The nitride layer grown by nitrogen plasma passivates the GaAs surface and appears to be thermally stable without significant degradation.
Original language | English |
---|---|
Pages (from-to) | 83-85 |
Number of pages | 3 |
Journal | Ieee Electron Device Letters |
Volume | 13 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1992 |