Patent ID: 7118685

Claim:
A polishing liquid composition for polishing a surface to be polished comprising an insulating layer and a metal layer, the polishing liquid composition comprising a compound having six or more carbon atoms and a structure in which each of two or more adjacent carbon atoms has a hydroxyl group in a molecule, and water, wherein the compound having a structure in which each of two or more adjacent carbon atoms has a hydroxyl group in a molecule is represented by the formula (I): R 1 —X—(CH 2 ) q —[CH(OH)] n —CH 2 OH (I) wherein R 1 is a hydrocarbon group having 1 to 12 carbon atoms; X is a group represented by (CH 2 ) m , wherein m is 1, oxygen atom, sulfur atom, COO group, OCO group, a group represented by NR 2 or O(R 2 O)P(O)O, wherein R 2 is hydrogen atom or a hydrocarbon group having 1 to 24 carbon atoms; q is 0 or 1; and n is an integer of 1 to 4.