Abstract:
PROBLEM TO BE SOLVED: To provide a photosensitive composition improved in pattern collapse even in the formation of a fine pattern of ≤100 nm and forming a pattern of good profile, a compound for use in the photosensitive composition and a pattern forming method using the photosensitive composition, with respect to a photosensitive composition for use in the production process of a semiconductor such as IC, in the production of a circuit substrate of liquid crystal, thermal head and the like or in other photofabrication processes, to provide a compound to be used for the photosensitive composition, and to provide a pattern forming method using the photosensitive composition. SOLUTION: The photosensitive composition contains an arylsulfonium salt having a polycyclic hydrocarbon structure in a cationic moiety. The compound for use in the photosensitive composition and the pattern forming method using the photosensitive composition are also provided. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a positive photosensitive composition that is used for processes of manufacturing semiconductors such as an IC, manufacturing circuit boards of liquid crystals, thermal heads or the like and for other photofabrication processes, and to provide a patterning method that uses the composition, wherein superior line width roughness (LWR) performance can be obtained. SOLUTION: The positive photosensitive composition comprises (A) a compound which generates acid by the irradiation of active rays or radiation; (B1) a resin, having a repeating unit having a polycyclic aliphatic group which is decomposed by acid to generate an alkali soluble group; and (B2) a resin, having a repeating unit that has a predetermined lactone structure and a repeating unit, having a monocyclic aliphatic group which is decomposed by acid and generates an alkali soluble group. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic ray-sensitive or radiation-sensitive resin composition excellent in sensitivity, resolution, roughness characteristics, pattern shape and suppression performance of development defects and particularly excellent in suppression performance of deterioration (reduction in film thickness) of a pattern shape caused by out-band light for EUV exposure, an actinic ray-sensitive or radiation-sensitive film, a pattern forming method, an electronic device and a method for manufacturing an electronic device.SOLUTION: There is provided an actinic ray-sensitive or radiation-sensitive resin composition which comprises: a resin (Aa) which contains a repeating unit (c) having at least two groups represented by -COO- in a structure represented by the general formulas (KA-1) or (KB-2); a resin (Ab) which has a phenolic hydroxyl group in the side chain and whose solubility to a developing solution is changed by the action of an acid; and a compound which generates an acid upon irradiation with actinic rays or radiation.
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic ray-sensitive or radiation-sensitive composition excellent in sensitivity, resolution, pattern shape and suppression performance of development defects and particularly excellent in suppression performance of deterioration (reduction in film thickness) of a pattern shape caused by out-band light for EUV exposure, an actinic ray-sensitive or radiation-sensitive film, a pattern forming method, an electronic device and a method for manufacturing an electronic device.SOLUTION: There is provided an actinic ray-sensitive or radiation-sensitive composition which comprises: a resin (Aa) which contains a repeating unit represented by the general formulas (Aa1) or (Aa2) as a repeating unit which is decomposed by the action of an acid and is unevenly distributed on a film surface when a film is formed to form a protective film; and a resin (Ab) whose solubility to an alkali developing solution is changed by the action of an acid different from that of the resin (Aa).
Abstract:
PROBLEM TO BE SOLVED: To provide a pattern forming method by which a pattern having a line portion having 20 nm line width or less can be formed to satisfy all of the demands for high resolution, a good pattern cross-sectional shape and high roughness performance, and to provide a method for selecting a heating temperature in the pattern forming method, an extreme ultraviolet (EUV) ray-sensitive resin composition, a resist film, and a method for manufacturing an electronic device and an electronic device using the above methods and others.SOLUTION: The pattern forming method includes steps of: (1) forming a film by using an EUV ray-sensitive resin composition including a resin having an acid decomposable group; (2) exposing the film by using EUV rays; (3) heating the film; and (4) developing the film to form a pattern, in this order. In the step (2), an optical image by the exposure has a line portion having a line width of 20 nm or less as an exposed portion or an unexposed portion. A heating temperature T(°C) in the step (3) satisfies the following expression (1). (1):[Glass transition temperature (Tg) of the resin (A)-30](°C)≤T≤glass transition temperature (Tg)(°C) of the resin (A).
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic ray-sensitive or radiation-sensitive resin composition capable of achieving high sensitivity, a good pattern shape, good roughness characteristics and good pattern density-dependent characteristics, and to provide an actinic ray-sensitive or radiation-sensitive resin film and a pattern forming method using the composition.SOLUTION: The actinic ray-sensitive or radiation-sensitive resin composition comprises: a resin (P) having a repeating unit (A) containing a group that is decomposed by irradiation with actinic rays or radiation to generate an acid and a repeating unit (B) containing a group that is decomposed by an action of an acid to increase solubility in an alkali developing solution; and a compound (Q) expressed by general formula (1). Each symbol in general formula (1) conforms to the claims and specification of the present invention.
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic-ray- or radiation-sensitive resin composition that can attain high sensitivity, a favorable pattern shape, favorable roughness characteristics and reduction of residue defects, and to provide an actinic-ray- or radiation-sensitive resin film therefrom and a method of forming a pattern using the composition.SOLUTION: Provided is an actinic-ray- or radiation-sensitive resin composition including a resin (P) containing an acid-decomposable repeating unit (A), which resin when acted on by an acid, increases its solubility in an alkali developer, a compound (Q) that when exposed to actinic rays or radiation, generates an acid, and a compound (R) expressed by general formula (1) or (2).
Abstract:
PROBLEM TO BE SOLVED: To provide a positive actinic ray-sensitive or radiation-sensitive resin composition which simultaneously satisfies high sensitivity, high resolution, an excellent pattern shape and excellent line edge roughness, and a resist film and pattern forming method using the resin composition.SOLUTION: A positive actinic ray-sensitive or radiation-sensitive resin composition comprises a repeating unit (A) which decomposes with radiation of an actinic ray or radiation so as to generate acid and the repeating unit (A) includes a resin (P) which has a cation structure including monocyclic or polycyclic nitrogen-containing heterocycle.
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic ray-sensitive or radiation-sensitive resin composition for exposure by x-ray, electron beam or EUV light that is excellent in pattern collapse margin and bridge margin with no residue of a resist composition on a substrate and excellent in resistance to scattered (flare) light, and a resist film and a pattern forming method using the composition.SOLUTION: The actinic ray-sensitive or radiation-sensitive resin composition for exposure by x-ray, electron beam or EUV light comprises: (a) a compound that generates an acid expressed by the general formula (I) below by irradiation with actinic rays or radiation; and (b) a resin which contains (meth) acrylic acid ester structure unit having an aryl group in a side chain and exhibits increased solubility in an alkali developer by the action of an acid.