What is the best way to remove the underfill from the GaNFET with out damaging the FET

Designing with GaN FETs and ICs Assembly and Layout
1

What is the best way to remove the underfill from the GaNFET with out damaging the FET.

2

How to remove underfill is dependent on the underfill choice you made. Most underfills are not removable, but some are. You should contact your underfill manufacturer for their recommendation.