Patent ID: 8883023
Filing Date: 2014-11-11
Classification: B44C,G03F,H01L,Y10S

Abstract:
1. A method for forming a pattern comprising the steps in the following order of: providing a composition to form a resist underlayer film on an upper face side of a substrate to be processed, the composition containing a calixarene based compound having a group represented by a following formula (i) bound to at least a part of an aromatic ring or at least a part of a heteroaromatic ring of the calixarene based compound, wherein R 1 represents a group that generates an acidic functional group by an action of heat or an acid; forming a resist pattern on an upper face side of the resist underlayer film; etching the resist underlayer film and the substrate using the resist pattern as a mask to form the pattern on the substrate; and removing the etched resist underlayer film from the substrate with a basic solution, the method further comprising heating an entirety of the resist underlayer film when R