HOLE FORMATION METHOD, MULTILAYER WIRING, SEMICONDUCTOR DEVICE, DISPLAY ELEMENT, IMAGE DISPLAY DEVICE, AND SYSTEM CONTAINING VIA HOLE FORMED BY THE HOLE FORMATION METHOD

摘要

A hole formation method including applying a pillar-forming liquid to a base material, to thereby form a pillar; applying an insulating film-forming material to the base material on which the pillar has been formed, to thereby form an insulating film; removing the pillar to form an opening in the insulating film; and heat treating the insulating film in which the opening has been formed.