Patent ID: 7776730

Claim:
A method of forming a pattern, comprising: forming an opening through an insulation layer on a substrate, the opening partially exposing the substrate; forming a conductive layer in the opening and on the insulation layer; forming a siloxane layer on the conductive layer to fill the opening, the siloxane layer including an organic solvent in an amount of about 93 percent by weight to about 98 percent by weight, based on a total weight of the siloxane layer, and a siloxane complex in an amount of about 2 percent by weight to about 7 percent by weight, based on the total weight of the siloxane layer, the siloxane complex including a siloxane polymer with an introduced carboxylic acid and being represented by Formula 1 below, wherein each of R 1 , R 2 R 3 , and R 4 independently represents H, OH, CH 3 , C 2 H 5 , C 3 H 7 , C 4 H 9 or C 5 H 11 , R′ represents CH 2 , C 2 H 4 , C 3 H 6 , C 4 H 8 , C 5 H 10 or C 6 H 12 , and n represents a positive integer so the siloxane polymer of the siloxane complex has a number average molecular weight of about 4,000 to about 5,000; forming a siloxane pattern in the opening by partially removing the siloxane layer; and forming a conductive layer pattern by etching the conductive layer using the siloxane pattern as an etching mask.