Table 2

Ingredients of a typical NIL resist used in this study and their functions
Ingredient wt.% Function
Ia 1 Silicon-containing oligomer; increases the viscosity and polarity of resist and provides high cross-linking density
IIa 4 Silicon-containing oligomer; provides oxygen RIE etching resistance and moderate cross-linking density
IIIa 0.5 Silicon-containing oligomer; relieves mechanical properties as plasticizer
PGMEA 94.2 Low-viscosity diluents; improves resist flow for spin coating
Diphenyliodonium salt 0.3 Photo-initiator; generates cationic acids upon exposure to UV radiation

aI, II, and III are the same epoxysiloxane samples listed in Table 1.

Zhang et al. Nanoscale Research Letters 2012 7:380   doi:10.1186/1556-276X-7-380

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