We have a XENOS EBL system attached to FESEM JSM-7200F
After the pattern is written on PMMA we coat it with the Gold and do the lift off. Initially I ultra-sonicated the substrate in acetone just for less than 2 seconds but the lift off was not proper which means there are few gold patches remaining along the pattern.
What is the standard lift off method for a clean pattern?
What are the considerations for the same.