Abstract:
Provided is a method of forming a pattern, ensuring excellent exposure latitude (EL) and focus latitude (depth of focus DOF). The method of forming a pattern includes (A) forming a film from a resist composition, the resist composition, (B) exposing the film to light, and (C) developing the exposed film using a developer containing an organic solvent, thereby forming a negative pattern. The resist composition contains (a) a resin that is configured to decompose when acted on by an acid and &Dgr;SP thereof represented by formula (1) below is 2.5 (MPa)1/2 or above, (b) a compound that is composed to generate an acid when exposed to actinic rays or radiation, and (c) a solvent. &Dgr;SP=SPF−SPI (1)
Abstract:
PROBLEM TO BE SOLVED: To provide a pattern forming method that enables formation of a pattern excellent in uniformity of a local pattern dimension and line width roughness, and to provide an actinic ray-sensitive or radiation-sensitive resin composition to be used for the method.SOLUTION: The pattern forming method comprises steps of: (1) forming a film comprising the following composition; (2) irradiating the film with actinic rays or radiation; and (3) developing the film to form a negative pattern. The composition used is an actinic ray-sensitive or radiation-sensitive resin composition comprising: a resin (P) including a repeating unit (P1) having a cyclic carbonate structure and a repeating unit (P2) expressed by general formula (P2-1) below; and a compound (B) that generates an acid by irradiation with actinic rays or radiation.
Abstract:
PROBLEM TO BE SOLVED: To provide: an actinic ray-sensitive or radiation-sensitive resin composition improved in CDU and roundness and suited even for a liquid immersion process with a line width of 45 nm or less; an actinic ray-sensitive or radiation-sensitive film and a pattern formation method which use the composition; and an electronic device manufacturing method and an electronic device.SOLUTION: An actinic ray-sensitive or radiation-sensitive resin composition contains a compound (A) represented by the specified general formula (1), and a resin (B) whose solubility in an alkaline developer is increased by the action of an acid. (The meaning of each symbol in the general formula (1) is described in the claims.)
Abstract:
PROBLEM TO BE SOLVED: To provide a pattern forming method capable of forming a pattern with wide depth of focus (DOF) and small line width roughness (LWR), excellent in pattern shape, and reduced in bridge defect; and to provide a chemically amplified negative resist composition.SOLUTION: A pattern forming method includes: a step (α) of forming a film by using a chemically amplified negative resist composition; a step (β) of exposing the film; and a step (γ) of developing by using a developer containing an organic solvent. The resist composition includes (A) a resin whose solubility to the developer containing the organic solvent is decreased by the action of an acid, (B) a compound that generates an acid by irradiation of an active ray or a radioactive ray, (D) a solvent, and (G) a compound that has at least one of a fluorine atom and a silicon atom, and that has basicity or whose basicity is increased by the action of the acid.
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic ray-sensitive or radiation-sensitive resin composition capable of satisfying, in a high level, all of reducing the number of development defects (bridge defects), reducing fluctuations of a critical dimension (CD) of a pattern line width per 1°C of PEB temperature (PEB temperature dependence), and enlarging a focus latitude in a space (space-DOF (depth of focus)), and to provide an actinic ray-sensitive or radiation-sensitive film using the actinic ray-sensitive or radiation-sensitive resin, a method for forming a pattern, a method for manufacturing an electronic device, and an electronic device using the above composition.SOLUTION: The actinic ray-sensitive or radiation-sensitive resin composition includes (A) a resin having a repeating unit expressed by general formula (1A) and a repeating unit expressed by general formula (1B) that is decomposed by an acid to generate a carboxyl group, and (B) a compound that generates an acid by irradiation with actinic rays or radiation. In general formula (1A), L represents a single bond or a divalent connecting group; and Z represents a cyclic acid anhydride group.
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic ray-sensitive or radiation-sensitive resin composition achieving a favorable cross-sectional shape with high rectangularity, a high film residual rate and reduction of bridge defects, and to provide a resist film and a pattern forming method using the composition, and a method for manufacturing an electronic device and an electronic device.SOLUTION: The actinic ray-sensitive or radiation-sensitive resin composition includes: (A) a resin having a repeating unit expressed by following general formula (1), a repeating unit having a lactone structure or a sultone structure, and a repeating unit that is decomposed by an action of an acid to generate an alkali-soluble group; and (B) a compound that generates an acid by irradiation with actinic rays or radiation. In general formula (1), L represents a single bond or a divalent connecting group; Rrepresents a hydrogen atom or an alkyl group; and Z represents a cyclic acid anhydride group.
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic ray-sensitive or radiation-sensitive resin composition having an excellent pattern profile and focal depth margin even if a pattern is formed directly using a high-reflection substrate without an antireflection film, and suited for implantation, and to provide a pattern forming method.SOLUTION: The actinic ray-sensitive or radiation-sensitive resin composition includes: (A) a resin containing at least a type of repeating unit represented by general formulas (PG1), (PG2), and (PG3), and a lactone structure; (B) a photo-acid-generating agent; and (C) solvent.
Abstract:
PROBLEM TO BE SOLVED: To provide an actinic ray-sensitive or radiation-sensitive resin composition excellent in roughness characteristics, focus latitude, bridge defect preventing performance and dependency of sensitivity on post exposure baking (PEB) temperature, and a pattern forming method using the composition.SOLUTION: The actinic ray-sensitive or radiation-sensitive resin composition comprises: a resin, which contains a first repeating unit having a group that is decomposed by an action of an acid to produce an alcoholic hydroxyl group, and the solubility of which with a developing solution containing an organic solvent is decreased by the action of the acid; a first compound that generates an acid by irradiation with actinic rays or radiation; a solvent; and a second compound having at least one of a fluorine atom and a silicon atom and having basicity or increasing basicity by the action of the acid.