Invention Grant
US08211612B2 Fluorine-containing polymer coating composition, method for forming fluorine-containing polymer film using coating composition, and method for forming photoresist or lithographic pattern 有权
含氟聚合物涂料组合物,使用涂料组合物形成含氟聚合物膜的方法,以及形成光致抗蚀剂或光刻图案的方法

Fluorine-containing polymer coating composition, method for forming fluorine-containing polymer film using coating composition, and method for forming photoresist or lithographic pattern
Abstract:
A method for forming a protective film of a fluorine-containing polymer composition excellent in smoothness and adhesiveness on a photoresist. Moreover, there is provided a means for removing the protective film without impairing the underlying photoresist. A polymer coating composition obtainable by dissolving a fluorine-containing polymer compound in a solvent comprising a fluorinated acetal having a specific structure is applied on a photoresist and dried to form a protective film. A fluorinated acetal having the specific structure is suitable as a solvent for being brought into contact with a fluorine-containing polymer film, peeling the film, and forming a photoresist or a lithographic pattern.
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