Patent ID: 6677108
Filing Date: 2004-01-13
Classification: G03F,Y10S

Abstract:
A light exposure method for selectively exposing a resist layer with light selected from the group consisting of X-rays containing soft X-rays, vacuum ultraviolet light rays, and ultraviolet rays containing extreme ultraviolet light rays, for patterning the resist layer to a pre-set shape, said method comprising the steps of:employing, as a high molecular material forming said resist layer, a high molecular material having an oxygen content ratio (n0) and density (&rgr;) satisfying at least one of the following equations (1) and (2): Ï &leq;â€ƒ&it;3.66Ã—{12.011Ã—(1-n0)/215.9994Ã—n0+&NewLine;&it;â€ƒ&it;1.00794Ã—(1-n0)/2}â€ƒ&it;32.4297Ã—(1-n0)/2+126.595Ã—n0+&NewLine;&it;â€ƒ&it;1.3607Ã—(1-n0)/2(1)Ï &leq;3.66Ã—{12.011Ã—(1-n0)/3+15.9994Ã—n0+&NewLine;&it;â€ƒ&it;1.00794Ã—(1-n0)Ã—2/3}32.4297Ã—(1-n0)/3+126.595Ã—n0+&NewLine;&it;â€ƒ&it;1.3607Ã—(1-n0)&it;2/3(2)andapplying said high molecular material to form said resist layer having a film thickness not less than 250 nm.