Abstract: The present invention provides a heterocyclic compound having an orexin type 2 receptor agonist activity. A compound represented by the formula (I): wherein each symbol is as described in the specification, or a salt thereof has an orexin type 2 receptor agonist activity, and is useful as an agent for the prophylaxis or treatment of narcolepsy.

Abstract: A radiation sensitive resin composition for forming a protective film, comprising: [A] a copolymer of (a1) an unsaturated carboxylic acid and/or an unsaturated carboxylic anhydride, (a2) an epoxy group-containing unsaturated compound and (a3) an unsaturated compound different from the components (a1) and (a2); [B] a monofunctional polymerizable unsaturated compound having a molecular weight of 180 or more and a carboxyl group; [C] a polyfunctional polymerizable unsaturated compound; and [D] a photopolymerization initiator, a method of forming a protective film from the above composition and a protective film formed from the above composition. The composition can provide a cured film having high flatness, has high developability and heat resistance, is advantageously used to form a protective film for liquid crystal display devices and solid-state image sensing devices, and has high storage stability as a composition.

Abstract: A radiation sensitive resin composition for forming a protective film, comprising: [A] a copolymer of (a1) an unsaturated carboxylic acid and/or an unsaturated carboxylic anhydride, (a2) an epoxy group-containing unsaturated compound and (a3) an unsaturated compound different from the components (a1) and (a2); [B] a monofunctional polymerizable unsaturated compound having a molecular weight of 180 or more and a carboxyl group; [C] a polyfunctional polymerizable unsaturated compound; and [D] a photopolymerization initiator, a method of forming a protective film from the above composition and a protective film formed from the above composition. The composition can provide a cured film having high flatness, has high developability and heat resistance, is advantageously used to form a protective film for liquid crystal display devices and solid-state image sensing devices, and has high storage stability as a composition.

Abstract: A radiation-sensitive resin composition comprising (A) a resin which comprises at least one recurring unit (I-1), (I-2), or (I-3), and a recurring unit (II), and is insoluble or scarcely soluble in alkali, but becomes alkali soluble by action of an acid, (B) a photoacid generator, and (C) a polycyclic compound. The resin composition is used as a chemically-amplified resist for microfabrication utilizing deep UV rays.

Abstract: A polyorganosiloxane having a weight average molecular weight of 500 to 1,000,000 obtained by heating a silane compound having an epoxy group and a silane compound having no epoxy group in the presence of an organic solvent, an organic base and water, an optical semiconductor sealing composition comprising the same as the main component, an optical semiconductor sealer and an optical semiconductor.

Abstract: A chemically amplified radiation-sensitive resin composition comprising a specific copolymer and a photoacid generator, wherein the copolymer contains the following recurring unit (1) and/or the recurring unit (2), and the recurring unit (3-1), wherein R1 is a hydrogen or methyl, R2 is a C4-10 tertiary alkyl, R3 and R4 are a hydrogen, C1-12 alkyl, C6-15 aromatic, C1-12 alkoxyl, or R3 and R4 may form, in combination and together with the nitrogen atom with which the R3 and R4 groups bond, a C3-15 cyclic structure, provided that R3 and R4 are not a hydrogen atom at the same time. The composition effectively responds to various radiations, exhibits excellent resolution and pattern configuration and minimal iso-dense bias, and can form fine patterns at a high precision and in a stable manner.

Abstract: A radiation-sensitive resin composition comprising (A) a resin which comprises at least one recurring unit (I-1), (I-2), or (I-3), and a recurring unit (II), and is insoluble or scarcely soluble in alkali, but becomes alkali soluble by action of an acid, (B) a photoacid generator, and (C) a polycyclic compound.

Abstract: A radiation-sensitive resin composition comprising an acid-labile group-containing resin and a photoacid generator is disclosed. The resin has a structure of the formula (1), wherein R1 represents a hydrogen atom, a monovalent acid-labile group, an alkyl group having 1-6 carbon atoms which does not have an acid-labile group, or an alkylcarbonyl group having 2-7 carbon atoms which does not have an acid-labile group, X1 represents a linear or branched fluorinated alkyl group having 1-4 carbon atoms, and R2 represents a hydrogen atom, a linear or branched alkyl group having 1-10 carbon atoms, or a linear or branched fluorinated alkyl group having 1-10 carbon atoms. The resin composition exhibits high transmittance of radiation, high sensitivity, resolution, and pattern shape, and is useful as a chemically amplified resist in producing semiconductors at a high yield.

Abstract: A chemically amplified radiation-sensitive resin composition comprising a specific copolymer and a photoacid generator, wherein the copolymer contains the following recurring unit (1) and/or the recurring unit (2), and the recurring unit (3-1), wherein R1 is a hydrogen or methyl, R2 is a C4-10 tertiary alkyl, R3 and R4 are a hydrogen, C1-12 alkyl, C6-15 aromatic, C1-12 alkoxyl, or R3 and R4 may form, in combination and together with the nitrogen atom with which the R3 and R4 groups bond, a C3-15 cyclic structure, provided that R3 and R4 are not a hydrogen atom at the same time. The composition effectively responds to various radiations, exhibits excellent resolution and pattern configuration and minimal iso-dense bias, and can form fine patterns at a high precision and in a stable manner.

Abstract: A chemically amplified radiation-sensitive resin composition comprising a specific copolymer and a photoacid generator, wherein the copolymer contains the following recurring unit (1) and/or the recurring unit (2), and the recurring unit (3-1), wherein R1 is a hydrogen or methyl, R2 is a C4-10 tertiary alkyl, R3and R4 are a hydrogen, C1-12 alkyl, C6-15 aromatic, C1-12 alkoxyl, or R3 and R4 may form, in combination and together with the nitrogen atom with which the R3 and R4 groups bond, a C3-15 cyclic structure, provided that R3 and R4 are not a hydrogen atom at the same time. The composition effectively responds to various radiations, exhibits excellent resolution and pattern configuration and minimal iso-dense bias, and can form fine patterns at a high precision and in a stable manner.

Abstract: A radiation-sensitive resin composition comprising: (A) an acid-dissociable group-containing resin, insoluble or scarcely soluble in alkali but becoming soluble in alkali when the acid-dissociable group dissociates, and containing recurring units with specific structures and (B) a photoacid generator of the formula (3), wherein R5 represents a monovalent aromatic hydrocarbon group, m is 1-8, and n is 0-5. The resin composition is suitable as a chemically-amplified resist responsive to deep ultraviolet rays such as a KrF excimer laser and ArF excimer laser, exhibits high transparency, excellent resolution, dry etching resistance, and sensitivity, produces good pattern shapes, and well adheres to substrates.

Abstract: A radiation-sensitive resin composition comprising an acid-labile group-containing resin and a photoacid generator is disclosed.

Abstract: A radiation-sensitive resin composition comprising an acid-labile group-containing resin and a photoacid generator is disclosed. The resin has a structure of the formula (1), wherein R1 represents a hydrogen atom, a monovalent acid-labile group, an alkyl group having 1-6 carbon atoms which does not have an acid-labile group, or an alkylcarbonyl group having 2-7 carbon atoms which does not have an acid-labile group, X1 represents a linear or branched fluorinated alkyl group having 1-4 carbon atoms, and R2 represents a hydrogen atom, a linear or branched alkyl group having 1-10 carbon atoms, or a linear or branched fluorinated alkyl group having 1-10 carbon atoms. The resin composition exhibits high transmittance of radiation, high sensitivity, resolution, and pattern shape, and is useful as a chemically amplified resist in producing semiconductors at a high yield.

Abstract: A radiation-sensitive resin composition comprising (A) a resin which comprises at least one recurring unit (I-1), (I-2), or (I-3), and a recurring unit (II), and is insoluble or scarcely soluble in alkali, but becomes alkali soluble by action of an acid, (B) a photoacid generator, and (C) a polycyclic compound. The resin composition is used as a chemically-amplified resist for microfabrication utilizing deep UV rays.

Abstract: A radiation-sensitive resin composition used as a chemically amplified positive tone resist responsive to short wavelength active radiation such as KrF excimer laser and ArF excimer laser is disclosed. The resin composition comprises: (A) an acid-dissociable group-containing resin which is insoluble or scarcely soluble in alkali and becomes alkali soluble when the acid-dissociable group dissociates, the resin comprising a lactone cyclic structure of the following formula (1): wherein a is an integer from 1-3, b is an integer from 0-9, and R1 represents a monovalent organic group, and (B) a photoacid generator. The composition has high transmittance of radiation, exhibits high sensitivity, resolution, and pattern shape, and can produce semiconductors at a high yield without producing resolution defects during microfabrication.

Abstract: A radiation-sensitive resin composition including (A) a resin containing an alicyclic skeleton in its backbone, and (B) a radiation-sensitive acid-generating agent, is provided. This composition is excellent in transparency with respect to radiation and dry etching resistance, and can give a photoresist pattern excellent in adhesion to substrates, sensitivity, resolution, and developability.

Abstract: A radiation-sensitive resin composition including (A) a resin containing an alicyclic skeleton in its backbone, and (B) a radiation-sensitive acid-generating agent, is provided. This composition is excellent in transparency with respect to radiation and dry etching resistance, and can give a photoresist pattern excellent in adhesion to substrates, sensitivity, resolution, and developability.

Abstract: A positive-tone radiation-sensitive resin composition comprising: (A) a low molecular weight compound having at least one amino group in which the nitrogen atom has at least one hydrogen atom bonded thereto and at least one of the hydrogen atoms is replaced by a t-butoxycarbonyl group, (B) a photoacid generator, and (C-1) a resin insoluble or scarcely soluble in alkali which is protected by an acid-dissociable group and becomes soluble in alkali when the acid-dissociable group dissociates or (C-2) an alkali-soluble resin and an alkali solubility control agent is disclosed. Also disclosed is a negative-tone radiation-sensitive resin composition comprising the low molecular weight compound (A), the photoacid generator (B), an alkali-soluble resin (D), and a compound capable of crosslinking with the alkali-soluble resin in the presence of an acid(E).

Abstract: A radiation-sensitive resin composition comprising (A) a resin containing an acid-dissociable group which is insoluble or scarcely soluble in alkali and becomes alkali soluble when the acid-dissociable group dissociates, comprising the following recurring unit (I), recurring unit (II), and at least one of the recurring units (III-1) and (III-2), and (B) a photoacid generator. The radiation-sensitive resin composition is suitable for use as a chemically-amplified resist showing sensitivity to active radiation such as deep ultraviolet rays represented by a KrF excimer laser or ArF excimer laser, exhibiting superior dry etching resistance without being affected by types of etching gas, having high radiation transmittance, exhibiting excellent basic characteristics as a resist such as sensitivity, resolution, and pattern shape, possessing excellent storage stability as a composition, and exhibiting sufficient adhesion to substrates.

Abstract: A radiation-sensitive resin composition comprising: (A) an acid-dissociable group-containing resin, insoluble or scarcely soluble in alkali but becoming soluble in alkali when the acid-dissociable group dissociates, and containing recurring units with specific structures and (B) a photoacid generator of the formula (3), 1