Abstract
The breakdown characteristics of InGaAs/InP avalanche photodiodes (APDs) are investigated theoretically as a function of structural parameters of a guard ring. The difference between electric fields in the center and edge regions greatly increases with increasing distance (d) between the p+-InP contact and the floating guard ring. As a result, the edge breakdown can be reduced using a floating guard ring with d = 0.3-0.8 μm. However, we observe that the reduction effect of the breakdown voltage caused by the adjustment of the doping concentration or junction position is not large, compared with that by the distance d.
| Original language | English |
|---|---|
| Article number | 106506 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 57 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2018 |