A resist topcoat composition includes an acrylic polymer including a structural unit containing a hydroxy group and a fluorine; a mixture including a sulfonic acid compound containing at least one fluorine and a carboxylic acid compound containing at least one fluorine in a weight ratio of about 1:0.1 to about 1:50; and a solvent. A method of forming patterns uses the resist topcoat composition to form a topcoat over a patterned substrate.

A resist topcoat composition and a method of forming patterns using the resist topcoat composition. The resist topcoat composition includes an acrylic copolymer including a first structural unit represented by Chemical Formula M-1, and a second structural unit represented by Chemical Formula M-2; an acid compound; and a solvent

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A resist topcoat composition and a method of forming patterns utilizing the resist topcoat composition are disclosed. The resist topcoat composition includes an acrylic polymer comprising a structural unit comprising a hydroxy group and a fluorine; a mixture comprising a first acid compound comprising at least one fluorine; and a second acid compound different from the first acid compound and comprising at least one fluorine, the first acid compound and the second acid compound are each independently selected from a sulfonic acid compound and a sulfonimide compound, the first acid compound and the second acid compound being in a weight ratio of about 1:0.1 to about 1:50; and a solvent.

A resist topcoat composition and a method of forming patterns utilizing the resist topcoat composition are disclosed. The resist topcoat composition includes an acrylic polymer comprising a structural unit comprising a hydroxy group and a fluorine; a mixture comprising a first acid compound comprising at least one fluorine; and a second acid compound different from the first acid compound and comprising at least one fluorine, the first acid compound and the second acid compound are each independently selected from a sulfonic acid compound and a sulfonimide compound, the first acid compound and the second acid compound being in a weight ratio of about 1:0.1 to about 1:50; and a solvent.

A method of forming a photoresist pattern and a semiconductor device on which a photoresist pattern manufactured according to the same is formed. The method includes forming a photoresist pattern on a substrate; coating an organic topcoat composition including an acrylic polymer including a structural unit containing a hydroxy group and a fluorine and an acidic compound on the photoresist pattern; drying and heating the substrate on which the organic topcoat composition is coated to coat it with a topcoat; and spraying a rinse solution including an ether-based compound on the substrate coated with the topcoat to remove the topcoat.

A method of forming a photoresist pattern and a semiconductor device on which a photoresist pattern manufactured according to the same is formed. The method includes forming a photoresist pattern on a substrate; coating an organic topcoat composition including an acrylic polymer including a structural unit containing a hydroxy group and a fluorine and an acidic compound on the photoresist pattern; drying and heating the substrate on which the organic topcoat composition is coated to coat it with a topcoat; and spraying a rinse solution including an ether-based compound on the substrate coated with the topcoat to remove the topcoat.

A method of forming a photoresist pattern and a semiconductor device on which a photoresist pattern manufactured according to the same is formed. The method includes forming a photoresist pattern on a substrate; coating an organic topcoat composition including an acrylic polymer including a structural unit containing a hydroxy group and a fluorine and an acidic compound on the photoresist pattern; drying and heating the substrate on which the organic topcoat composition is coated to coat it with a topcoat; and spraying a rinse solution including an ether-based compound on the substrate coated with the topcoat to remove the topcoat.

A resist topcoat composition and a method of forming patterns using the resist topcoat composition are provided. The resist topcoat resist topcoat composition includes an acrylic polymer including a structural unit containing a hydroxy group and a fluorine; at least one acid compound selected from a sulfonic acid compound containing at least one fluorine, a sulfonimide compound containing at least one fluorine, and a carboxylic acid compound containing at least one fluorine; and a solvent.

A resist topcoat composition and a method of forming patterns using the resist topcoat composition are provided. The resist topcoat resist topcoat composition includes an acrylic polymer including a structural unit containing a hydroxy group and a fluorine; at least one acid compound selected from a sulfonic acid compound containing at least one fluorine, a sulfonimide compound containing at least one fluorine, and a carboxylic acid compound containing at least one fluorine; and a solvent.

A radiation-sensitive resin composition includes: a polymer which has a first structural unit including a phenolic hydroxyl group, and a second structural unit represented by formula (1); and a radiation-sensitive acid generating agent which has a compound represented by formula (2). R.sup.1 represents a hydrogen atom, or the like; R.sup.2 represents a hydrogen atom or the like; and R.sup.3 represents a divalent monocyclic alicyclic hydrocarbon group having 3 to 12 ring atoms. Ar.sup.1 represents a group obtained by removing (q+1) hydrogen atoms on an aromatic ring from an arene formed by condensation of at least two benzene rings; R.sup.4 represents a monovalent organic group having 1 to 20 carbon atoms; q is an integer of 0 to 7; and R.sup.5 represents a halogen atom, a hydroxy group, a nitro group, or a monovalent organic group having 1 to 20 carbon atoms, or the like.

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