Patent ID: 8029974

Claim:
A thermosetting metal oxide-containing film-forming composition for forming a metal oxide-containing film to be formed in a multilayer resist process used in lithography, the thermosetting metal oxide-containing film-forming composition comprising, at least: (A) a metal oxide-containing hydrolysis-condensation product of: one kind or two or more kinds of hydrolyzable silicon compounds represented by the following general formula (1); and one kind or two or more kinds of hydrolyzable metal compounds represented by the following general formula (2): R 1 m1 R 2 m2 R 3 m3 Si(OR) (4-m1-m2-m3) (1) wherein R is an alkyl group having 1 to 6 carbon atoms; R 1 , R 2 , and R 3 are each a hydrogen atom or a monovalent organic group having 1 to 30 carbon atoms; m1, m2, and m3 are 0 or 1; and m1+m2+m3 is an integer from 0 to 3 U(OR 4 ) m4 (OR 5 ) m5 (2) wherein R 4 and R 5 are an organic group having 1 to 30 carbon atoms; m4+m5 is a valence to be determined by a kind of U; m4 and m5 are an integer of 0 or more; and U is an element belonging to group III, group IV or group V in the periodic table, except for silicon and carbon; (B) one kind or two or more kinds of thermal crosslinking accelerators represented by the following general formula (3) or (4): L a H b X (3) wherein L is lithium, sodium, potassium, rubidium, or cesium; X is a hydroxyl group, or a monovalent, divalent or higher organic acid group having 1 to 30 carbon atoms; a is an integer of 1 or more; b is an integer of 0 or 1 or more; and a+b is a valence of the hydroxyl group or organic acid group M a′ H b′ A (4) wherein M is sulfonium, iodonium, or ammonium; A is a hydroxyl group, a monovalent, divalent, or higher organic acid group having 1 to 30 carbon atoms, or a non-nucleophilic counter ion; a′ is an integer of 1 or more; b′ is an integer of 0 or 1 or more; and a′+b′ is a valence of the hydroxyl group, organic acid group, or non-nucleophilic counter ion; (C) a monovalent, divalent, or higher organic acid having 1 to 30 carbon atoms; (D) a trivalent or higher alcohol selected from following formulae: (E) an organic solvent.