Fig. 4
(a)Elat and (b) electrostatic potential in the drift region along the horizontal cut-line, and (c) electrostatic potential captured in the drift region under the on-state bias condition for Conv and FPHK. Conv shows a high electric peak at DE, whereas FPHK demonstrates an evenly distributed Elat with the suppression of sharp potential drop in the drift region. (d) Space charge for FPHK along the horizontal cut-line under the on-state bias condition at the regions (ii) and (iii).
