LICHTEMPFINDLICHE ZUSAMMENSETZUNGEN

摘要

A sensitive composition comprising polymethyl isopropenyl ketone of limited molecular weight and a compound of a given general formula. The formation of a pattern of less than 1 mu m is made possible by employing ultraviolet rays of wave lengths of 100-350 nm in place of those of 350-450 nm utilized in conventional processes. The sensitive composition is highly sensitive to ultraviolet rays in said wave range and reproduces a fine pattern precisely.