摘要:
An acetal compound of formula (1) is provided wherein R1 is H, methyl or trifluoromethyl, R2 is a monovalent C1-C10 hydrocarbon group, R3 and R4 are H or a monovalent C1-C10 hydrocarbon group, R2 and R3 may together form an aliphatic hydrocarbon ring, and X1 is a single bond or a divalent C1-C4 hydrocarbon group. A polymer comprising recurring units derived from the acetal compound is used as a base resin to formulate a resist composition which exhibits a high resolution when processed by micropatterning technology, especially ArF lithography.
摘要:
A polymer comprising recurring units of formulae (1) and (2) wherein R1 and R3 are H or methyl, R2 and R4 are C1-15 alkyl, R5 to R8 are H, or R5 and R7, and R6 and R8 form trimethylene or 1,3-cyclopentylene and having a Mw of 1,000-500,000 is novel. A resist composition comprising the polymer as a base resin is sensitive to high-energy radiation, has excellent sensitivity, resolution and etching resistance and lends itself to micropatterning with electron beams or deep-UV.
摘要:
A positive resist composition comprises (A) a resin component which becomes soluble in an alkaline developer under the action of an acid and (B) an acid generator. The resin (A) is a polymer comprising recurring units containing a non-leaving hydroxyl group represented by formula (1) wherein R1 is H, methyl or trifluoromethyl, m is 1 or 2, and the hydroxyl group attaches to a tertiary carbon atom. The composition is improved in resolution when processed by lithography.
摘要:
Lactone-containing compounds having formula (1) are novel wherein R1 is H, F, methyl or trifluoromethyl, R2 and R3 are H or monovalent hydrocarbon groups, or R2 and R3 may together form an aliphatic hydrocarbon ring, R4 is H or CO2R5, R5 is a monovalent hydrocarbon group, W is CH2, O or S, and k1 is 3, 4 or 5. They are useful as monomers to produce polymers which are transparent to radiation ≦500 nm. Radiation-sensitive resist compositions comprising the polymers as base resin exhibit excellent properties including resolution, LER, pattern density dependency and exposure margin.
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:
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:
Chemically amplified resist compositions comprising nitrogen-containing organic compounds having an aromatic carboxylic acid ester structure have an excellent resolution and provide a precise pattern profile and are useful in microfabrication using electron beams or deep-UV light.
摘要:
An industrially acceptable process for preparing 2-[tris(trimethylsilyl)silyl]ethyl (meth)acrylate in high yields involves reacting 2-[tris(trimethylsilyl)silyl]ethyl acetate with an alcohol in the presence of a catalyst to form 2-[tris(trimethylsilyl)silyl]ethanol, then reacting it with a (meth)acrylate ester.
摘要:
A polymer is obtained from a hydroxyphenyl methacrylate monomer having an acid labile group substituted thereon. A positive resist composition comprising the polymer as a base resin has a very high contrast of alkaline dissolution rate before and after exposure, a high resolution, a good profile and minimal line edge roughness of a pattern after exposure, a retarded acid diffusion rate, and good etching resistance.
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).