摘要:
Resist compositions comprising as the base resin a polymer using an alkoxyalkyl (meth)acrylate as a reactive group which is decomposable under the action of an acid to increase solubility in alkali have advantages including a practical level of shelf stability, a significantly enhanced contrast of alkali dissolution rate before and after exposure, a high sensitivity, and a high resolution over a wide baking temperature range. The compositions are best suited as a chemically amplified positive resist material for micropatterning in the manufacture of VLSI.
摘要:
A chemical amplification type resist composition uses as the base resin a polymer having a molecular weight dispersity of 1.0 to 1.5 which is a polymer comprising recurring units of formula (1) and recurring units of formula (2) or a polymer comprising recurring units of formula (2) wherein R1 is alkyl, alkoxyalkyl, acetyl or carbonylalkoxy, 0
摘要:
A resist composition comprising a dendritic or hyperbranched polymer of a phenol derivative having a weight average molecular weight of 500-10,000,000 has an excellent resolution, reduced line edge roughness, and dry etching resistance and is useful as a chemical amplification type resist composition which may be either positive or negative working.
摘要:
A dendritic or hyperbranched polymer having a weight average molecular weight of 500-10,000,000 is prepared by polymerizing a hydroxystyrene derivative, adding a branching monomer midway in the polymerization step to introduce branch chains, and repeating the polymerizing and branching steps. The polymer is advantageously used as the base resin of resist material because the size of the polymer can be reduced while maintaining strength.
摘要:
A novel ester compound having an exo-form 2-alkylbicyclo[2.2.1]heptan-2-yl group as the protective group is provided as well as a polymer comprising units of the ester compound. The polymer is used as a base resin to formulate a resist composition having a higher sensitivity, resolution and etching resistance than conventional resist compositions.
摘要:
A hydroxystyrene/indene/alkoxyisobutoxystyrene copolymer having Mw of 1,000-500,000 is formulated as a base resin to give a resist composition, typically chemically amplified positive resist composition. The composition exhibits a high resolution, a satisfactory resist pattern profile after development, and improved etch resistance and is thus suitable as a micropatterning material for the fabrication of VLSI.
摘要:
A self-assembling polymer film material comprising a polymer comprising recurring hydroxystyrene units and having a Mw of up to 20,000 is provided. When a polymer comprising hydroxystyrene units is used in the form of a block copolymer or a blend with another polymer, the material is capable of self-assembling to form a pattern of microdomain structure having a size of up to 20 nm that is difficult to achieve with prior art block copolymers.
摘要:
Resist compositions comprising as the base resin a polymer having alkoxyisobutoxy as a reactive group which is decomposable under the action of an acid to increase solubility in alkali have advantages including a significantly enhanced contrast of alkali dissolution rate before and after exposure, a high sensitivity, and a high resolution in fine feature size regions. The compositions are best suited as a chemically amplified resist material for micropatterning in the manufacture of VLSI.
摘要:
Resist compositions comprising as the base resin a polymer having alkoxyisobutoxy as a reactive group which is decomposable under the action of an acid to increase solubility in alkali have advantages including a significantly enhanced contrast of alkali dissolution rate before and after exposure, a high sensitivity, and a high resolution in fine feature size regions. The compositions are best suited as a chemically amplified resist material for micropatterning in the manufacture of VLSI.
摘要:
Chemically amplified positive resist compositions comprising a polymer obtained by copolymerizing a silicon-containing monomer with a polar monomer having a value of LogP or cLogP of up to 0.6 and optionally hydroxystyrene, a photoacid generator and an organic solvent are sensitive to high-energy radiation and have a high sensitivity and resolution at a wavelength of less than 300 nm and improved resistance to oxygen plasma etching.