dnmun
1 PW
i agree with jeremy on this. the skill to make the parts walks in and out the door everyday. the process equipment, etching and lithography is all fairly universal now, especially since all the power parts are made in china now too. so i think it is possible that the performance is higher than other power mosfets, and it is the engineer who knows how to adjust the process to get the conductivity down to the 4mohm range. the BV and Rds may also just be from binning parts as they come out of the process and they find some lots are better than others, so they go into the FB4110 clone box. jmho