摘要:
A polymer comprising recurring units of formulae (1), (2), (3) and (4) increases a dissolution rate in an alkali developer under the action of an acid. R1, R2, R3 and R6 are H or CH3, R4 and R5 are H or OH, X is a tertiary exo-alkyl group having a bicyclo[2.2.1]heptane framework, represented by any of formulae (X-1) to (X-4): wherein R7 is C1–C10 alkyl, and Y is a tertiary alkyl group having an adamantane structure. A resist composition comprising the inventive polymer has a sensitivity to high-energy radiation, improved resolution and minimized proximity bias and lends itself to micropatterning with electron beams or deep UV for VLSI fabrication.
摘要翻译:包含式(1),(2),(3)和(4)的重复单元的聚合物在酸的作用下增加碱显影剂中的溶解速率。 R 1,R 2,R 3和R 6是H或CH 3 N >,R 4和R 5是H或OH,X是具有双环[2.2.1]庚烷骨架的叔外烷基,由式 (X-1)至(X-4):其中R 7为C 1 -C 10烷基,Y为叔烷基 具有金刚烷结构的组。 包含本发明聚合物的抗蚀剂组合物对高能量辐射具有敏感性,改进的分辨率和最小化的接近偏压,并且借助于用于VLSI制造的电子束或深UV的微图案化。
摘要:
A resist lower-layer composition configured to be used by a multi-layer resist method used in lithography to form a layer lower than a photoresist layer acting as a resist upper layer film. The resist lower-layer composition is insoluble or poorly-soluble in an alkaline developer after formation of the lower layer, and the resist lower-layer composition comprises, at least, a thermal acid generator for generating an acid by heating at a temperature of 100° C. or higher.
摘要:
A pattern is formed by applying a first positive resist material onto a substrate, heat treating, exposing to high-energy radiation, heat treating, then developing with a developer to form a first resist pattern; applying a protective coating solution comprising a hydrolyzable silicon compound having an amino group onto the first resist pattern and the substrate, heating to form a protective coating; and applying a second positive resist material thereon, heat treating, exposing to high-energy radiation, heat treating, and then developing with a developer to form a second resist pattern. By forming the second pattern in a space portion of the first pattern, this double patterning reduces the pattern pitch to one half.
摘要:
Alicyclic methacrylate compounds having an oxygen substituent group on their α-methyl group, represented by formula (1), are novel wherein R1 is H or C1–C10 alkyl which may contain a halogen atom, hydroxyl group, ether bond, carbonyl group, carboxyl group or cyano group, and R2 is a monovalent C3–C20 organic group having an alicyclic structure. Polymers prepared from these alicyclic methacrylate compounds have improved transparency, especially at the exposure wavelength of an excimer laser, and improved dry etching resistance. Resist compositions comprising the polymers are sensitive to high-energy radiation, show a high resolution, allow smooth development, lend themselves to micropatterning, and are thus suitable as micropatterning material for VLSI fabrication
摘要:
A polymerizable fluorinated compound having formula (2a) or (2b) wherein R1 and R2 are H or C1-C20 alkyl or fluoroalkyl, R3 is H, F or C1-C4 alkyl or fluoroalkyl, and R is H or a protective group is polymerized into a fluorinated polymer which is used as a base polymer to formulate a resist composition having transparency to laser light of wavelength≦300 nm, alkali development amenability, and dry etch resistance.
摘要:
A polymerizable fluorinated compound having formula (2a) or (2b) wherein R1 and R2 are H or C1-C20 alkyl or fluoroalkyl, R3 is H, F or C1-C4 alkyl or fluoroalkyl, and R is H or a protective group is polymerized into a fluorinated polymer which is used as a base polymer to formulate a resist composition having transparency to laser light of wavelength≦300 nm, alkali development amenability, and dry etch resistance.
摘要:
There is disclosed a resist lower-layer composition configured to be used by a multi-layer resist method used in lithography to form a layer lower than a photoresist layer acting as a resist upper layer film, wherein the resist lower-layer composition becomes insoluble or poorly-soluble in an alkaline developer after formation of the lower layer, and wherein the resist lower-layer composition comprises, at least, a thermal acid generator for generating an acid represented by the general formula (1) by heating at a temperature of 100° C. or higher. RCOO—CH2CF2SO3−H+ (1) There can be provided a resist lower-layer composition in a multi-layer resist method (particularly, a two-layer resist method and a three-layer resist method), which composition is used to form a layer lower than a photoresist layer acting as a resist upper layer film, which composition becomes insoluble or poorly-soluble in an alkaline developer after formation of the lower layer, and which composition is capable of forming a resist lower layer film, intermediate-layered film, and the like having a higher anti-poisoning effect and exhibiting a lower load to the environment.
摘要:
Novel tertiary (meth)acrylate compounds having a lactone structure are polymerizable into polymers having improved transparency, especially at the exposure wavelength of an excimer laser and dry etching resistance. Resist compositions comprising the polymers are sensitive to high-energy radiation, have a high resolution, and lend themselves to micropatterning with electron beams or deep-UV rays.
摘要:
Provided is a novel epoxy compound useful, in photolithography, as a monomer for preparing a photoresist material excellent in transparency and affinity to a substrate. More specifically, provided are an epoxy compound represented by the following formula (1): wherein, R1 and R2 each independently represents a hydrogen atom or a linear, branched or cyclic C1-10 alkyl group in which hydrogen atoms on one or more constituent carbon atoms thereof may be partially or entirely substituted by one or more halogen atoms, or the constituent —CH2— may be substituted by an oxygen atom, or R1 and R2 may be coupled together to form an aliphatic hydrocarbon ring; R3 represents a linear, branched or cyclic C1-10 alkyl group or a C1-15 acyl or alkoxycarbonyl group in which hydrogen atoms on one or more constituent carbon atoms thereof may be partially or entirely substituted by one or more halogen atoms; X represents CH2, oxygen or sulfur; k stands for 0 or 1; and m stands for an integer of 0 to 5; and a polymer compound having recurring units available therefrom.
摘要:
Tertiary alcohol compounds of formula (1) are novel wherein R1 and R2 are C1-10 alkyl groups which may have halogen substituents, or R1 and R2 may form an aliphatic hydrocarbon ring, Y and Z are a single bond or a divalent C1-10 organic group, and k=0 or 1. Using the tertiary alcohol compounds as a monomer, polymers are obtained. A resist composition comprising the polymer as a base resin is sensitive to high-energy radiation and has excellent sensitivity, resolution, etching resistance and substrate adhesion.