We have used Monte Carlo simulation methods employing both realistic band structure and a simpler analytical approximation to investigate impact ionization in bulk AlxGa1-xAs and also submicron p(+)in(+) diodes for x less than or equal to 40%. The calculated impact ionization rates in bulk AlxGa1-xAs compared well with previous experiments and the electron- and hole-initiated current multiplication characteristics of the p(+)in(+) diodes were found to agree very well with our experimental results for both the analytical and the numerical models.
|Number of pages||7|
|Journal||Semiconductor Science and Technology|
|Publication status||Published - 1999|
- LUCKY-DRIFT THEORY
- AVALANCHE PHOTODIODES