Dear Jack:
Our mold Engineer have checked mold process. There is no defect related to HFE DIVID reject.
In my view ,PKG has some influences on test result.
Every production will have difference test result after mold process.
I suggest that DIVID reject is related to wafer issue.
Every wafer have a test data on HFE , Those rejects maybe is under the high limit rather than average level .
After mold process ,they maybe over the test limit. But remove EMC they will return to normal .
Could you please tell us how to deal with this lot?
Thanks for your support .