发明授权
US07384730B2 Top coating composition for photoresist and method of forming photoresist pattern using same 有权
用于光致抗蚀剂的顶涂层组合物和使用其形成光刻胶图案的方法

Top coating composition for photoresist and method of forming photoresist pattern using same
摘要:
Top coating compositions capable of being used in immersion lithography, and methods of forming photoresist patterns using the same, are provided. The top coating composition includes: a polymer, a base; and a solvent, wherein the polymer may be represented by Formula I: wherein R1 and R2 are independently selected from the group consisting of hydrogen, fluoro, methyl, and trifluoromethyl; X is a carboxylic acid group or a sulfonic acid group; Y is a carboxylic acid group or a sulfonic acid group, wherein the carboxylic acid group or sulfonic acid group is protected; Z is a monomer selected from the group consisting of a vinyl monomer, an alkyleneglycol, a maleic anhydride, an ethyleneimine, an oxazoline-containing monomer, acrylonitrile, an allylamide, a 3,4-dihydropyran, a 2,3-dihydrofuran, tetrafluoroethylene, or a combination thereof; and m, n, and q are integers wherein 0.03≦m/(m+n+q)≦0.97, 0.03≦n/(m+n+q)≦0.97, 0≦q/(m+n+q)≦0.5; and wherein the solvent includes deionized water.
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