摘要:
A photosensitive polyimide polymer composition comprising a solvent soluble polyimide condensation product of an aromatic dianhydride and an aromatic diamine, a polyfunctional ethylenically unsaturated monomer and a photoinitiator. The solvent soluble polyimides of the composition are prepared from at least one compound selected from 2,2-hexafluoro-bis-(3,4-dicarboxyphenyl)tetracarboxylic dianhydride; 1,1-bis-[4-(1,2-dicarboxyphenyl)]-1-phenyl-2,2,2-trifluoroethane dianhydride; 2,2-hexafluoro-bis(3-aminophenyl)propane; 2,2-hexafluoro-bis(4-aminophenyl)propane; 2,2-hexafluoro-bis-[4-(3-aminophenoxy)phenyl]propane; 2,2-hexafluoro-bis-[4-(4-aminophenoxy)phenyl]propane and 1,1-bis-(4-aminopheny)-1-phenyl-2,2,2-trifluoroethane or mixtures thereof.
摘要:
The invention provides a method of chemically-mechanically polishing a substrate comprising tungsten through use of a composition comprising a tungsten etchant, an inhibitor of tungsten etching, and water, wherein the inhibitor of tungsten polishing is a polymer, copolymer, or polymer blend comprising at least one repeating group comprising at least one nitrogen-containing heterocyclic ring or a tertiary or quaternary nitrogen atom. The invention further provides a chemical-mechanical polishing composition particularly useful in polishing tungsten-containing substrates.
摘要:
A process for producing a water insoluble, aqueous alkali soluble, film forming novolak resin having low metal ions, made by the fractionation of a phenol formaldehyde condensation product, a process for producing a resin a photoresist composition of superior quality containing such novolak resin, and a method for producing a semiconductor device using such photoresist composition.
摘要:
A light-sensitive positive photoresist composition containing a film forming resin, a photoactive compound, a solvent, and an arylhydrazo dye. The dyed photoresist reduces the linewidth variation of the resist pattern on a reflective substrate while giving good lithographic performance.
摘要:
A process for producing a water insoluble, aqueous alkali soluble, film forming novolak resin fraction having a low metal ion content, made by the fractionation of a phenol formaldehyde condensation product, a process for producing a photoresist compositions containing such a novolak resin, and a method for producing a semiconductor device using such a photoresist composition.
摘要:
This invention is that of high temperature polyamides containing the hexafluoroisopropylidene group. The high temperature polyamides of the invention and photo or radiation sensitizers provide improved high temperature positive resists which can be developed in aqueous alkaline developer and thermally anneal to form heat resistant, polyoxazole relief structures suitable for use in microelectronic and printing applications. The positive photoresists of the invention have improved solubility in coating solvents and improved photospeed. The polyamides of the invention can be prepared by conventional condensation reactions; e.g. the condensation of a diamine and diacid chloride. In addition the polyamides of this invention provide high temperature protective coatings with superior adhesion properties in applications other than the photoresist area.
摘要:
High molecular weight polyimides are formed by polycondensation of 2,2-bis(4-aminophenyl) hexafluoropropane or 2,2-bis(3-aminophenyl) hexafluoropropane with one or more of bis-(3,4 dicarboxyphenyl) ether dianhydride; 3,3', 4,4' benzophenone tetracarboxylic acid dianhydride; 3,3', 4,4' diphenyl tetracarboxylic acid dianhydride and 2,2-bis(3,4 dicarboxyphenyl) hexafluoropropane dianhydride. Generally, the polymers of the present invention are characterized by a molecular weight of more than about 90,000.
摘要:
The present invention provides polyamide-polyamide and polybenzoxazole-polyamide polymers derived therefrom with improved processing and film characteristics having incorporated into the polymeric backbone the polymeric condensation residuum of novel aromatic diamino compounds having the formula: ##STR1## wherein A is selected from the group consisting of SO.sub.2, O, S, CO, C.sub.1 to C.sub.6 alkylene, perfluoroalkylene or perfluoroalkylene having from 1 to 10 carbon atoms and a bond directly linking the two aromatic groups and R is selected from the group consisting of hydrogen, hydroxy and C.sub.1 to C.sub.4 alkoxy.The polyamide-polyamide polymers of this invention are prepared by reacting compounds of the above formula, alone or admixed with othr aromatic diamines, with one or more aromatic or aliphatic dicarboxylic acid or amide-forming derivatives thereof. Polybenzoxazole-polyamide drivatives of such polyamide-polyamide polymers are prepared utilizing compounds of the above formula wherein R is hydroxy or C.sub.1 to C.sub.4 alkoxy, and by subjecting the resulting alkoxy or hydroxy-substituted polyamide-polyamide to a dehydrating and cyclizing reaction to form the oxazole linkage which gives rise to polybenzoxazole-polyamide polymer.
摘要:
A method of insolubilizing solvent soluble polyimides comprising the imidized condensation products of an aromatic dianhydride and a primary aromatic diamine wherein at least one of said dianhydride or diamine is selected from the group consisting of 2,2-hexafluoro-bis(3,4-dicarboxyphenyl)propane dianhydride; 2,2-hexafluoro-bis(3-aminophenyl) propane; 2,2-hexafluoro-bis(4-aminophenyl)propane; 2,2-hexafluoro-bis-[4-(3-aminophenoxy)phenyl]propane; 2,2-hexafluoro-bis[4-(4-aminophenoxy)phenyl]propane; 1,1-bis(4-aminophenyl)-1-phenyl-2,2,2-trifluoroethane; 1,1-bis-[4-(1,2-dicarboxyphenyl)]-1-phenyl-2,2,2-trifluoroethane dianhydride and mixtures thereof.The method comprises forming a shaped article or film comprising the polyimides and subjecting same to a heat annealing process at a temperature of at least 325.degree. C. and for a period of time sufficient to insolubilize the polyimide. Preferred temperatures range from 350.degree. C. to 400.degree. C. for a period of time of at least 45 minutes to about 2 hours.