摘要:
In an immersion lithography process, a pattern is formed by forming a photoresist layer on a wafer, forming a protective coating on the photoresist layer from an overlay material, exposing the layer structure to light in water, and developing. A water-insoluble, alkali-soluble material is used as the overlay material.
摘要:
There is disclosed a resist top coat composition, comprising at least a polymer that has an amino group or a sulfonamide group at a polymer end and that is represented by the following general formula (1); and a patterning process comprising: at least, a step of forming a photoresist film on a substrate; a step of forming a resist top coat on the photoresist film by using the resist top coat composition; a step of exposing the substrate; and a step of developing the substrate with a developer. There can be provided a resist top coat composition that makes it possible to provide more certainly rectangular and excellent resist patterns when a top coat is formed on a photoresist film; and a patterning process using such a composition.
摘要:
A chemically amplified resist composition using an alternating copolymer of α-trifluoroacrylic acid with norbornene as a base polymer lends itself to ArF laser lithographic micropatterning and is improved in transparency, plasma etching resistance, and line edge roughness.
摘要:
A polymer comprising recurring units (2) obtained through polymerization of an ester compound of formula (1) is used to form a resist composition. R1 is F or C1-C6 fluoroalkyl, R2 is H or C1-C8 alkyl, R3 is O or C1-C6 alkylene, R4 and R5 each are H or C1-C10 alkyl or fluoroalkyl, and R6 is H or an acid labile group. The resist composition, when processed by ArF lithography, has advantages including improved resolution, transparency, minimal line edge roughness, and etch resistance. The resist composition exhibits better performance when processed by ArF immersion lithography with liquid interposed between a projection lens and a wafer.
摘要:
There is disclosed a resist composition which shows high sensitivity and high resolution on exposure to high energy beam, provides reduced Line Edge Roughness because swelling at the time of development is reduced, provides minor amounts of residue after development, has excellent dry etching resistance, and can also be used suitably for the liquid immersion lithography; and a patterning process using the resist composition. There can be provided a resist composition which comprises, at least, a polymer including repeating units represented by the following general formulae (a) and (b).
摘要:
There is disclosed a resist lower layer film material for a multilayer-resist film used in lithography which contains a polymer having at least a repeating unit represented by the following general formula (1). There can be provided a resist lower layer film material for a multilayer-resist process, especially for a two-layer resist process, which functions as an excellent antireflection film especially for exposure with a short wavelength, namely has higher transparency, and has the optimal n value and k value, and is excellent in an etching resistance in substrate processing, and a method for forming a pattern on a substrate by lithography using it
摘要:
There is disclosed a polymer which at least has the repeating unit represented by the following general formula (1a), and the repeating unit represented by the following general formula (1b) and/or the repeating unit represented by the following general formula (1c), and a positive resist composition comprising the polymer as a base resin. There can be provided a positive resist composition having high sensitivity and high resolution on exposure to a high energy beam, wherein line edge roughness is reduced since swelling at the time of development is suppressed, and the residue after development is little
摘要:
A sulfonate compound having formula (1) is novel wherein R1 to R3 are H, F or C1-20 alkyl or fluoroalkyl, at least one of R1 to R3 contains F. A polymer comprising units derived from the sulfonate compound is used as a base resin to formulate a resist composition which is sensitive to high-energy radiation, maintains high transparency at a wavelength of up to 200 nm, and has improved alkali dissolution contrast and plasma etching resistance
摘要翻译:具有式(1)的磺酸酯化合物是新的,其中R 1至R 3是H,F或C 1-20烷基或氟代烷基, R 1至R 3中的至少一个含有F.使用包含衍生自磺酸盐化合物的单元的聚合物作为基础树脂以配制抗敏剂组合物,其对 高能量辐射,在高达200nm的波长下保持高透明度,并且具有改善的碱溶性对比度和等离子体耐蚀刻性
摘要:
A polymer comprising recurring units of (1a) or (1b) wherein R1 is an acid labile group, adhesive group or fluoroalkyl, R2 is H, F, alkyl or fluoroalkyl, R3 and R4 each are a single bond, alkylene or fluoroalkylene, R5 is H or an acid labile group, “a” is 1 or 2, 0
摘要:
There is disclosed a resist composition which comprises, at least, a polymer in which a sulfonium salt having a polymerizable unsaturated bond, a (meth)acrylate having a lactone or a hydroxyl group as an adhesion group, and a (meth)acrylate having an ester substituted with an acid labile group are copolymerized. There can be provided a resist composition with high resolution which has high sensitivity and high resolution to high energy beam, especially to ArF excimer laser, F2 excimer laser, EUV, X-ray, EB, etc., has reduced line edge roughness, and comprises a polymeric acid generator which has insolubility in water, and sufficient thermal stability and preservation stability.