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:
A positive resist composition contains (a) an acrylic resin which is subject to a change in solubility in a basic aqueous solution, the acrylic resin comprising an acrylic or methacrylic acid ester unit comprising an ester moiety comprising a fluorine-containing group; and (b) a photoacid generator capable of releasing an acid when irradiated with a laser. The composition is high in transparency to vacuum ultraviolet laser beams, particularly the F2 excimer laser beam, and high in sensitivity.
摘要:
The present invention relates to a top coat composition, which is characterized in that it is applied to a photoresist top surface by using a polymer containing at least one structure represented by the formula [1], [2] or [3]. It is possible to produce a top coat composition solution by dissolving this top coat composition in an organic solvent. These top coat composition and top coat composition solution can be used in immersion lithography.
摘要:
The present invention relates to a top coat composition, which is characterized in that it is applied to a photoresist top surface by using a polymer containing at least one structure represented by the formula [1], [2] or [3]. It is possible to produce a top coat composition solution by dissolving this top coat composition in an organic solvent. These top coat composition and top coat composition solution can be used in immersion lithography.
摘要:
The present invention relates to a process for producing a top coat film used in a lithography. This process includes the steps of (a) providing a polymer that dissolves in an alkali developing solution, the polymer having in the molecule at least one group that is optionally protected and that is selected from the group consisting of a fluorocarbinol group, a sulfonic group, a fluoroalkylsulfonic group, and a carboxylic group; (b) dissolving the polymer in an organic solvent containing 40 wt % or greater of an alkane, thereby preparing a coating composition; and (c) applying the coating composition to a photoresist film, thereby forming the top coat film on the photoresist film.
摘要:
The present invention relates to, for example, a fluorine-containing cyclic compound represented by the following general formula (1). In the general formula (1), R1a is a C1-C25 cyclic alkyl group, cyclic alkenyl group or cyclic alkynyl group; each of R2 and R3 is independently a hydrogen atom, a halogen atom, or a C1-C25 straight-chain, branched or cyclic alkyl group; and each of R1a, R2 and R3 may contain fluorine atom, oxygen atom, sulfur atom, nitrogen atom or an atomic group containing a carbon-carbon double bond.
摘要翻译:本发明涉及例如由以下通式(1)表示的含氟环状化合物。 在通式(1)中,R 1a是C 1 -C 25环烷基,环烯基或环炔基; R 2和R 3各自独立地为氢原子,卤素原子或C 1 -C 25直链,支链或环状烷基; R 1a,R 2和R 3可以含有氟原子,氧原子,硫原子,氮原子或含有碳 - 碳双键的原子团。
摘要:
The present invention relates to a fluorine-containing cyclic compound of formula (5): wherein R2-R4 and R9-R15 are independently a hydrogen atom, a halogen atom, or a C1-C25 straight-chain, branched or cyclic alkyl group, and may contain fluorine atom, oxygen atom, sulfur atom, or nitrogen atom. R10 and R11, R12 and R13, or R14 and R15 may be bonded together to form a ring. In such a case, it is a C1-C25 alkylene group that may contain a hetero atom such as oxygen, sulfur and nitrogen, “a” is 0 or 1, “b” is an integer of 0-2 and “c” is an integer of 0-2.
摘要:
The present invention relates to, for example, a fluorine-containing cyclic compound represented by the following general formula (1). In the general formula (1), R1a is a C1-C25 cyclic alkyl group, cyclic alkenyl group or cyclic alkynyl group; each of R2 and R3 is independently a hydrogen atom, a halogen atom, or a C1-C25 straight-chain, branched or cyclic alkyl group; and each of R1a, R2 and R3 may contain fluorine atom, oxygen atom, sulfur atom, nitrogen atom or an atomic group containing a carbon-carbon double bond.
摘要翻译:本发明涉及例如由以下通式(1)表示的含氟环状化合物。 在通式(1)中,R 1a是C 1 -C 25环烷基,环烯基或环炔基; R 2和R 3各自独立地为氢原子,卤素原子或C 1 -C 15直链,支链或环状烷基; R 1a,R 2和R 3可以含有氟原子,氧原子,硫原子,氮原子或含有碳 - 碳双键的原子团。
摘要:
The present invention relates to, for example, a fluorine-containing cyclic compound represented by the following general formula (1). In the general formula (1), R1a is a C1-C25 cyclic alkyl group, cyclic alkenyl group or cyclic alkynyl group; each of R2 and R3 is independently a hydrogen atom, a halogen atom, or a C1-C25 straight-chain, branched or cyclic alkyl group; and each of R1a, R2 and R3 may contain fluorine atom, oxygen atom, sulfur atom, nitrogen atom or an atomic group containing a carbon-carbon double bond.
摘要翻译:本发明涉及例如由以下通式(1)表示的含氟环状化合物。 在通式(1)中,R 1a是C 1 -C 25环烷基,环烯基或环炔基; R 2和R 3各自独立地为氢原子,卤素原子或C 1 -C 25直链,支链或环状烷基; R 1a,R 2和R 3可以含有氟原子,氧原子,硫原子,氮原子或含有碳 - 碳双键的原子团。
摘要:
The present invention relates to a fluorine-containing copolymer. This fluorine-containing copolymer includes (a) a first unit derived from α-trifluoromethyl acrylic ester represented by the following general formula (1); and (b) a second unit derived from a vinyl monomer, where R1 is an organic group containing at least one fluorine atom.