Patent ID: 6096478
Filing Date: 2000-08-01
Classification: G03F,Y10S

Abstract:
A resist material, comprising:a resin for forming the resist material;a first photo-acid generating agent having a molecular weight between 100 and 1000 and producing a photo-acid having a diffusion length between 10 and 30 nm by exposure; anda second photo-acid generating agent having a molecular weight between 100 to 1000 and producing an photo-acid having a diffusion length between 30 and 60 nm by exposure,the second photo-acid generating agent being mixed into the first photo-acid generating agent at a ratio between 5 and 95 mol %,the first and the second photo-acid agents being mixed into a resin at a ratio that a total amount of the first and the second photo-acid generating agent is between 1 and 15 wt %,the first and the second photo-acid generating agents being specified by a single combination selected from a group consisting of a first combination of onium salts, a second combination of non-onium salts, and a third combination of a non-onium salt and an onium salt, respectively.