Chemically amplified ArF resists based on cleavable alicyclic group and the absorption band shift method

Recent advances in the single-layer resist for forming finer patterns have led us to a search for new resist materials for the ArF excimer laser. We describe a novel, environmentally friendly, single-layer resist based on a menthyl acrylate copolymer protected with a cleavable alicyclic group and the absorption band shift method.