Patent ID: 9502247
Filing Date: 2016-11-22
CPC Classification: B01D,G03F,H01L

Claim Text:
1. A method for forming a coating film for a lithography, comprising the steps of: performing spin coating of a composition for forming a coating film for a lithography onto a substrate for producing a semiconductor device by using a spin coating device provided with an integrated filter in which a filtration membrane and a housing are integrated; and heating the substrate for producing a semiconductor device coated with the composition for forming a coating film for a lithography; thereby forming a coating film for a lithography on the substrate for producing a semiconductor device, wherein the integrated filter is a filter which brings eluting material in an amount of 3 mg or less per a filter when the eluting material is extracted by circulating an organic solvent at a rate of 10 ml/min for 24 hours.