PMMA for DUV Recipe

Application

PMMA used for recipe below: 3% 2041 PMMA (350K) in xylene

tone

positive

special

also appliable for e-beam use
clearance dose at 100keV: 600 uC/cm²

reference

MicroChem

spin coat

100nm @ 5000 rpm

pre bake

2 minutes on hotplate @175°C (for thicknesses <500nm) or

30 minutes on hotplate @175°C (for thicknesses >500nm)

exposure time

1 h

development

60 s in MIBK : IPA = 1 : 3

stopping

>120 s in IPA