Patent ID: 7361718

Claim:
A gap fill material forming composition for manufacturing semiconductor devices by coating a photoresist on a substrate having a hole with an aspect ratio of 1 or more shown in height/diameter, transferring an image to the substrate using a lithography process, coating the composition on the substrate, baking the composition, contacting the composition with an alkaline aqueous solution after baking, and coating the photoresist, the composition comprising: a polymer having a hydroxy group or a carboxy group; a crosslinking agent; and an alkali-dissolution rate regulator selected from the group consisting of naphthoquinone compounds, compounds having a t-butoxycarbonyl group, compounds having a hydroxy group, compounds having a carboxy group, and compounds having a phenyl group, wherein a gap fill material layer manufactured by coating and baking the gap fill material forming composition on a semiconductor substrate has a dissolution rate ranging from 3 to 200 nm per second for an alkaline aqueous solution having a concentration of 0.1% to 20%.