Sachin, What is the purpose of the Chlorobenzene dip in your process? I just started using 1813 for lift off as well. Right now I'm spin coating around 2-3k rpm, soft bake for 3 min at 125C and expose. Then depending on what material I need to deposit and how much, I may hard bake for a long time (125C for 4 hours) so the resist stands up to the high temperature of our evaporator. I then lift off with warm acetone (50C) and sonication. I've had pretty good results with this process, but I'm curious about the Chlorobenzene. -Joe sachin narwade wrote: > Ravi Shankar, > Lift-off is possible with S1813. You need to give a Chlorobenzene > dip > on resist coated sample before UV exposure for about a minute or so > depending upon the application and the photoresist thickness you are > using > (you need to standardize that). Then lift-off comes quite easily, I have > also S1813 for lift-off. > > Sachin >