UV-curable resist formulations for nanoimprint must satisfy many requirements for viscosity, volatility, curing
rate, cohesion of the cured material and release from the template in addition to being successfully imprintable. In this
paper we describe studies of several vinyl ether resist systems. Although all resist formulations have low viscosity, low
volatility and fast curing rate, significant variations in mechanical, fracture energy properties, fracture behaviors and
cured film roughness with resist compositions are found. The results show the addition of reactive diluent to resist can
lead to low fracture energy and low cured film roughness, consistent with significant control of the cured resist plasticity.
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