Positive photosensitive resin composition, cured film, protective film, insulating film, and semiconductor device and display device therewith

摘要

An objective of the present invention is to achieve both prevention of scum generation in an open area and improvement in sensitivity in patterning process of the positive photosensitive resin composition. This objective can be achieved by a positive photosensitive resin composition comprising an alkali-soluble resin (A) containing an ingredient having a molecular weight of 80,000 or more in 0.5% or less and a photosensitizing agent (B), wherein the amount of said photosensitizing agent (B) is 10 parts by weight or more and 40 parts by weight or less to 100 parts by weight of said alkali-soluble resin (A).