摘要:
A heat-resistant resin paste consisting essentially of a first organic liquid (A.sub.1), a second organic liquid (A.sub.2), a heat-resistant resin (B) which is soluble in an organic liquid mixture consisting essentially of the first organic liquid (A.sub.1) and the second organic liquid (A.sub.2), and fine particles of a heat-resistant resin (C) which are soluble in the first organic liquid (A.sub.1), but insoluble in the second organic liquid (A.sub.2). The first organic liquid (A.sub.1), the second organic liquid (A.sub.2), and the heat-resistant resin (B) are brought into a solution in which the fine particles of a heat-resistant resin (C) are dispersed. The heat-resistant resin paste may be suitably used for screen process printing to provide integrated circuit devices with insulator layers or surface protecting layers. The heat-resistant resin paste is suitable for forming insulator layers or surface protecting layers in integrated circuit devices by employing screen process printing.
摘要:
An integrated circuit device wherein layer insulation is attained by at least one of (i) an insulator layer interposed between two adjacent conductor layers, and (ii) a surface protecting layer fixedly covering the surface of the semiconductor chip, each of the insulator layer and the surface protecting layer being made of a heat-resistant resin obtainable by heating a heat-resistant resin paste. Said paste consists essentially of a first organic liquid, a second organic liquid, a heat-resistant resin (B) which is soluble in an organic liquid mixture consisting of the first organic liquid and the second organic liquid, and fine particles of a heat-resistant resin (C) which is soluble in the first organic liquid but insoluble in the second organic liquid. The first organic liquid, the second organic liquid and the heat-resistant resin (B) are brought into a solution in which the fine particles of a heat-resistant resin (C) are dispersed.
摘要:
Disclosed is a polyamide-imide resin paste which comprises polyamide-imide resin solution dissolved in a non-nitrogen-containing solvent, wherein resin fine particles are dispersed in the solution in an amount of 1 to 50% by weight relative to the resulting polyamide-imide resin paste.According to the present invention, there can be provided a paste which does not cause any clogging of screen due to adhesion of the paste even in repeated printings over a long period of time and shows an excellent mechanical stability of a paste in printing.
摘要:
An epoxy-modified polyamide resin obtained by reacting a diisocyanate(A) with at least one member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid anhydride (B) in a nitrogen-containing aprotic solvent to form a polyamide resin intermediate and reacting this polyamide resin intermediate with an epoxy resin (C) in the nitrogen-containing aprotic solvent. This epoxy-modified polyamide resin has a high molecular weight and can provide a film with excellent heat resistance and flexibility, and its composition can be used as a coating material, adhesive or such in the form as it is.
摘要:
An amide group-containing epoxy resin obtained by reacting an epoxy resin with an amide group-containing diisocyanate obtained by reacting a diisocyanate with a dicarboxylic acid gives a uniform cured article showing high adhesiveness and is usable as an adhesive, a coating composition, and the like.
摘要:
An amide group-containing epoxy resin obtained by reacting an epoxy resin with an amide group-containing diisocyanate obtained by reacting a diisocyanate with a dicarboxylic acid gives a uniform cured article showing high adhesiveness and is usable as an adhesive, a coating composition, and the like.
摘要:
A thermoresistance adhesive which does not dissolve in the sealer-composing resins at the sealer molding temperature and is capable of providing a semiconductor chip/lead frame adhesive strength under shear of 1 N/4 mm2 or greater, and including, for example, amide, imide, ester or ether linkage is suited for use in producing thermoresistance adhesive solutions and thermoresistance resin pastes, and the semiconductor chips, lead frames, films, etc., made by using such an adhesive are suited for providing low-cost semiconductor devices.
摘要:
Liquid crystals purified by treating with porous particles of a compound having one or more imide groups, or a liquid crystal composition comprising one or more liquid crystals and porous particles of a compound having one or more imide groups can provide a liquid crystal cell having a high voltage retention rate and a liquid crystal display device having high display properties.
摘要:
Liquid crystals purified by treating with porous particles of a compound having one or more imide groups, or a liquid crystal composition comprising one or more liquid crystals and porous particles of a compound having one or more imide groups can provide a liquid crystal cell having a high voltage retention rate and a liquid crystal display device having high display properties.
摘要:
A photosensitive resin composition comprising, as its main ingredient, a poly(amic acid) resin constituted of a diamino compound represented by formula: ##STR1## and optionally used other diamino compound and a tetracarboxylic acid dianhydride as its constituent monomers and/or a poly(amic acid) ester resin obtained by esterifying said poly(amic acid) resin and/or a polyimide resin obtained by a dehydrating or alcohol-eliminating ring-closure reaction of said poly(amic acid) resin or poly(amic acid) ester resin has an excellent developability and a high film strength and can form a relief patter of low thermal expansion.