Patent ID: 6576393
Filing Date: 2003-06-10
Classification: G03F,Y10S

Abstract:
A resist underlayer film comprising:both or either of a hydrolysate and a condensate of (A) at least one compound selected from the group consisting of (A-1) a compound represented by the following general formula (1): R1aSi(OR2)4-aâ€ƒâ€ƒ(1) wherein R1 represents a hydrogen atom, a fluorine atom or a univalent organic group, R2 represents a univalent organic group, and a represents an integer of 0 to 2, and (A-2) a compound represented by the following general formula (2):R3b(R4O)3âˆ’bSiâ€”(R7)dâ€”Si(OR5)3âˆ’cR6câ€ƒâ€ƒ(2) wherein R3, R4, R5 and R6, which may be the same or different, each represent univalent organic groups, b and c, which may be the same or different, each represent integers of 0 to 2, R7 represents an oxygen atom or â€”(CH2)nâ€”, d represents 0 or 1, and n represents an integer of 1 to 6, wherein neither the compound of general formula (1) nor the compound of general formula (2) contains a glycidyl group; and(B) a compound generating an acid by ultraviolet irradiation and/or heating.