摘要:
A polymer comprising recurring units having a fluorinated carboxylic acid onium salt structure on a side chain is used to formulate a chemically amplified positive resist composition. When the composition is processed by lithography to form a positive pattern, the diffusion of acid in the resist film is uniform and slow, and the pattern is improved in LER.
摘要:
There is disclosed a negative resist composition comprising at least (A) a base resin that is alkaline-soluble and is made alkaline-insoluble by action of an acid, and/or a combination of a base resin that is alkaline-soluble and is made alkaline-insoluble by reaction with a crosslinker by action of an acid, with a crosslinker, (B) an acid generator, and (C) a compound containing a nitrogen as a basic component, and forming a resist film having the film thickness X (nm) of 50 to 100 nm, wherein, in the case that the resist film is formed from the negative resist composition under the film-forming conditions for the pattern formation, a dissolution rate of the resist film into the alkaline developer used in the development treatment for the pattern formation is 0.0333X−1.0 (nm/second) or more and 0.0667X−1.6 (nm/second) or less. There can be a negative resist composition having excellent etching resistance and resolution and giving a good pattern profile even at the substrate's interface, a patterning process using the same, and a testing process and a preparation process of this negative resist composition.
摘要:
A dispersion element includes a prism having a first transmission surface and an oppositely disposed second transmission surface, and an optical element having a third transmission surface and an oppositely disposed diffraction optical surface on which a diffraction grating is arranged. The prism and the optical element are integrated into one body by cementing the first transmission surface to the third transmission surface. The third transmission surface and the diffraction optical surface are non-parallel to each other in a plane perpendicular to grooves of the diffraction grating.
摘要:
A lighting fixture capable of efficiently radiating heat of a lamp device may be configured to be attached to a socket device. In some examples, by attaching the lamp device to the socket device, a cap portion of the lamp device is brought into contact with a fixture body, and pressed against and brought into close contact with the fixture body by an elastic body. Heat generated by lighting of LEDs of the lamp device is conducted from the cap portion to the fixture body and efficiently radiated.
摘要:
Both ends of a lamp body are mounted on sockets of an apparatus body and a feeding unit configured to feed power to LEDs is provided on the back side facing the apparatus body of the lamp body.
摘要:
There is disclosed a negative resist composition comprising (A) a base polymer which is soluble in alkali and which is insolubilized in alkali by an action of an acid; and/or a combination of a crosslinking agent and a base polymer which is soluble in alkali and which is reacted with the crosslinking agent by an action of an acid to thereby be insolubilized in alkali, (B) an acid generator, and (C) a nitrogen-containing compound as a basic component; wherein the polymer to be used as the base polymer is: a polymer, which is obtained by polymerizing two or more kinds of monomers represented by the following general formula (1), or which is obtained by polymerizing a monomer mixture containing one or more kinds of monomers represented by the general formula (1) and one or more kinds of styrene monomers represented by the following general formula (2).
摘要:
Provided is a method of producing a polyvinyl alcohol resin, wherein the impurities in the resin are removed efficiently with a small amount of a washing liquid.A polyvinyl alcohol obtained after a polymerization step (step S1) and a saponification step (step S2) is washed with a washing liquid consisting of methyl acetate: 1 to 40 parts by mass, methanol: 50 to 98.9 parts by mass and water: 0.1 to 10 parts by mass in a washing step (step S3). The solid matter concentration of the slurry containing the washing liquid then is 1 to 30 mass %.
摘要:
A chemically amplified resist composition comprises a polymer comprising units having polarity to impart adhesion and acid labile units adapted to turn alkali soluble under the action of acid. The polymer comprises recurring units having formula (1) wherein R1 is H, F, CH3 or CF3, Rf is H, F, CF3 or CF2CF3, A is a divalent hydrocarbon group, R2, R3 and R4 are alkyl, alkenyl, oxoalkyl, aryl, aralkyl or aryloxoalkyl. Recurring units containing an aromatic ring structure are present in an amount ≧60 mol % and the recurring units having formula (1) are present in an amount
摘要:
Provided is a method of deprotecting a protected polymer, the method being capable of, in the deprotection reaction of a polymer comprising a unit structure having a phenolic hydroxyl group protected with an acyl group, deacylating the polymer in a short period of time while maintaining the other structure, and being capable of taking out the deacylated polymer while highly suppressing contamination of the deacylated polymer with a substance other than the polymer taking part in the reaction. More specifically, provided is a method of deprotecting a protected polymer comprising at least a step of dissolving in an organic solvent the protected polymer comprising at least a unit structure having a phenolic hydroxyl group protected with an acyl group and a deprotecting reagent selected from primary or secondary amine compounds each having a ClogP value of 1.00 or less with the proviso that in the secondary amine compound, neither of the two carbon atoms coupled to the nitrogen atom of the amino group is tertiary. The primary or secondary amine compounds are each represented preferably by HNR12-nR2n (1).
摘要:
There is disclosed a chemically amplified positive resist composition to form a chemically amplified resist film to be used in a lithography, wherein the chemically amplified positive resist composition comprises at least, (A) a base resin, insoluble or poorly soluble in an alkaline solution, having a repeating unit whose phenolic ydroxyl group is protected by a tertiary alkyl group, while soluble in an alkaline solution when the tertiary alkyl group is removed; (B) an acid generator; (C) a basic component; and (D) an organic solvent, and a solid component concentration is controlled so that the chemically amplified resist film having the film thickness of 10 to 100 nm is obtained by a spin coating method. There can be provided, in a lithography, a chemically amplified positive resist composition giving a high resolution with a suppressed LER deterioration caused by film-thinning at the time of forming a chemically amplified resist film with the film thickness of 10 to 100 nm, and a resist patterning process using the same.