Abstract:
PROBLEM TO BE SOLVED: To provide a resist composition superior in filtering and line width uniformity, and to provide a pattern forming method using the same. SOLUTION: There are provided the positive resist composition including: (A) an acidolysis resin containing a specific repetition structural unit having an annular alkyl structure; (B) an acid generating agent; and (C) a mixed solvent containing at least one solvent selected from the following (a) group and at least one solvent selected from the following (b) to (d) groups and the pattern forming method. (a) group: alkylene glycol monoalkyl ether. (b) group: alkylene glycol monoalkyl ether carboxylate. (c) group: straight chain ketone, branched chain ketone, annular ketone, lactone, and alkylene carbonate. (d) group: lactate ester, acetic acid ester, and alkoxy propionic acid ester. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a positive resist composition for immersion exposure, which can further improve a backward contact angle to an immersion liquid in immersion exposure and can diminish watermark defects, and to provide a pattern forming method using the same. SOLUTION: The positive resist composition for immersion exposure includes the following (A) to (D): (A) a resin capable of decomposing by an action of an acid to increase a solubility of the resin in an alkali developer; (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation; (C) a resin having at least either one of a fluorine atom and a silicon atom; and (D) a mixed solvent containing at least one solvent selected from the group consisting of solvents represented by any one of formulae (S1) to (S3) in such a way that a total amount of the at least one solvent is 3-20 mass% based on all solvents of the mixed solvent. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a positive resist composition which is improved in collapse of a resist pattern and in performance stability to a change in exposure amount (exposure latitude), exhibits good conformability to an immersion liquid in immersion exposure, and enable to form a good resist pattern, and to provide a pattern forming method using the resist composition. SOLUTION: The positive resist composition includes: a compound which generates a specific sulfonic acid having a fluorine atom and an ester bond upon irradiation with actinic rays or radiation; a resin of which the solubility in an alkali developer increases under the action of an acid; and a resin having at least one of a fluorine atom and a silicon atom. The pattern forming method using the resist composition includes immersion exposure. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a positive photosensitive composition improved in pattern collapse and development defects even in the formation of a fine pattern of ≤100 nm and a pattern forming method using the same, with respect to a positive 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 and a pattern forming method using the same. SOLUTION: The positive photosensitive composition contains (A) a compound which generates an acid upon irradiation with an actinic ray or radiation and (B) a resin comprising an acid decomposable repeating unit and a non-acid decomposable repeating unit of a specific structure. The pattern forming method using the same is also provided. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a positive resist composition which is excellent in line edge roughness in normal exposure and liquid immersion exposure and with which the variation of the line width caused by time delay between exposure-PEB is reduced; and a method for forming a pattern using the same. SOLUTION: The positive resist composition contains a compound capable of generating an acid represented by general formula (I) and (II) upon irradiation with (A1) actinic rays or radiation and a compound capable of generating an acid having another specified structure upon irradiation with (A2) actinic rays or radiation. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a pattern forming method in which an ultra fine line-and-space pattern (line-and-space pattern whose line width and space width are 40 nm or less, for example) can be easily formed, a method of manufacturing an electronic device, and an electronic device.SOLUTION: There is provided a pattern forming method which includes steps of, in this order: (a) forming a first film on a substrate by using active ray-sensitive or radiation-sensitive resin composition (I) containing resin whose polarity increases due to an action of acid and solubility to developer containing organic solvent decreases; (b) exposing the first film; (c) developing the exposed first film by using developer containing organic solvent and forming a first negative pattern; (e) forming a second film on the substrate by using active ray-sensitive or radiation-sensitive resin composition (II) containing resin whose polarity increases due to an action of acid and solubility to developer containing organic solvent decreases; (f) exposing the second film; and (g) developing the exposed second film by using developer containing organic solvent and forming a second negative pattern. There are also provided a method of manufacturing an electronic device, and an electronic device.
Abstract:
PROBLEM TO BE SOLVED: To provide a pattern formation method allowing excellent film thickness uniformity and suppressing occurrence of bridge defects and water residue defects, in formation of a fine pattern having a line width of 60 nm or less by an immersion method using an organic developer; an actinic ray-sensitive or radiation-sensitive resin composition used therefor; a resist film; an electronic device-manufacturing method; and an electronic device.SOLUTION: A pattern formation method has steps of: (i) forming a film with an actinic ray-sensitive or radiation-sensitive resin composition containing a resin (A) whose solubility to a developer comprising an organic solvent is reduced due to increased polarity by the action of an acid, a compound (B) generating an acid by irradiation with an actinic ray or radiation, a solvent (C), and a resin (D) being different from the resin (A) and substantially containing no fluorine atom nor silicon atom; (ii) light-exposing the film; and (iii) developing with a developer comprising an organic solvent to form a negative pattern, where the film formed in the step (i) has a receding contact angle of 70° or more to water.
Abstract:
PROBLEM TO BE SOLVED: To provide a pattern forming method suitable for immersion exposure, a resist film, a manufacturing method of an electronic device, and an electronic device.SOLUTION: An actinic ray-sensitive or radiation-sensitive resin composition contains: (A) a resin whose polarity increases by action of an acid to reduce the solubility in a developer containing an organic solvent, where said resin different from a resin (D) described below; (B) a compound that generates an acid by exposure to an actinic ray or radiation; (C) a solvent; and (D) a resin having a repeating unit (DI) having a group decomposing by action of an acid to produce a polar group and a repeating unit (DII) represented by the specified general formula (D2), where: Xc, Xc, and Xceach independently represent a hydrogen atom, an alkyl group or a halogen atom; L represents a single bond or a non-acid-decomposable divalent linking group; and Rprepresents a non-acid-decomposable group.
Abstract:
PROBLEM TO BE SOLVED: To provide a resist composition with which a resist pattern can be formed, which prevents collapse of a resist pattern, improves performance stability (exposure latitude) to a variation in exposure amount, and has excellent followability to an immersion liquid during liquid immersion exposure; and a pattern forming method using the resist composition.SOLUTION: Provided is a positive resist composition containing a compound that generates a specific sulphonic acid including fluorine atoms and an ester linkage by irradiation of active light or radiation; a resin that increases solubility to alkali developer by action of acid; and a resin that includes at least one of fluorine atoms and silicon atoms. Also provided is a pattern forming method by liquid immersion exposure using the resist composition.