MASK PATTERN FORMATION METHOD AND SUBSTRATE PROCESSING METHOD
MASK PATTERN FORMATION METHOD AND SUBSTRATE PROCESSING METHOD
A mask pattern formation method includes applying a substance that includes a polymerizable ionic liquid to a substrate, causing a polymerization reaction of the polymerizable ionic liquid for at least a part of the substance that includes a polymerizable ionic liquid to produce a substance that include a polymeric ionic liquid on the substrate, and forming a mask pattern of the substance that includes a polymeric ionic liquid on the substrate by using the substance that includes a polymeric ionic liquid.