Abstract:
The cost of a semiconductor device is to be reduced. An electrical connection between a first semiconductor chip and a second semiconductor chip stacked on the first semiconductor chip is made through an inner lead portion of a lead disposed at a position around the first semiconductor chip and two bonding wires.
Abstract:
An aqueous dispersion of a fluorocopolymer, which is excellent in stability and film-forming properties as an aqueous dispersion and which gives a coating film excellent in weather resistance and mechanical strength and improved in water resistance and stain resistance. The aqueous dispersion comprises water and dispersed therein a fluorocopolymer which comprises (a) polymer units based on a fluoroolefin, (b) polymer units based on propylene, (c) polymer units based on ethylene and/or (d) polymer units based on butylene and which has a melting point within a range of from 40 to 150° C.
Abstract:
An electric circuit board module includes a substrate with electric components mounted on one side thereof and electrodes provided on the other side thereof for the electric connection with the mounted electrical components. The electric circuit board module further includes conductor columns adhered to the electrodes and an adhesion layer provided on the other side of the substrate and around the conductor columns such that the conductor columns extrude from the adhesion layer by a predetermined length. By pressing the electric circuit board module against a separate circuit board to mount thereon, the electric components are electrically connected with electrodes of the sperate circuit board through conductor columns. Since conductor columns are made of a resinous paste with metallic powders dispersed therein, no heating operation as required in conventional module using a solder flow is necessary, resulting in that electric components are kept from the degradation caused by the heat.
Abstract:
A manufacturing method for a multilayered ceramic body using Cu, Ni, Co or Fe as a conductor material, and a conductor forming paste of a particular composition of CuO, NiO, CoO or Fe.sub.2 O.sub.3 as the main component, the paste being applied to the multilayered body. The manufacturing method comprises: a process of forming the multilayered body with conductor paste of CuO, NiO, CoO or Fe.sub.2 O.sub.3 as the main component and insulating paste formed of glass and/or ceramic, so that a binder is removed from the laminate by heat treatment in an oxidizing atmosphere; a process of heat treatment for reducing the oxide; and a sintering process for sintering the laminate in a nitrogen atmosphere.
Abstract:
A thick film conductor composition for a ceramic wiring substrate comprises an inorganic ingredient mainly composed of a copper oxide powder added with a metal capable of forming a homogeneous solid solution with copper, and an organic vehicle. The inorganic ingredient may be further added with a manganese oxide or a heat resistant insulating material such as ceramics and/or glass.
Abstract:
A parallel translation information generation device includes a bilingual dictionary storage portion in which are stored three or more types of bilingual dictionaries that link all two-language combinations of a first language, a second language, and a third language; a trilingual parallel translation information generation portion that generates trilingual parallel translation information that is a set of a word in the first language, a word in the second language, and a word in the third language having a relationship such that all sets of words in two languages among the first-language word, the second-language word, and the third-language word are linked by the bilingual dictionaries, and a trilingual parallel translation information output portion that outputs trilingual parallel translation information.
Abstract:
A fluororesin powder coating composition having high light resistance and being excellent in blocking resistance and smoothness of the coating film when coated, and a fluororesin powder to be used for a powder coating material, are presented.The fluororesin powder coating composition is made by using as the main material resin a composite fluorinated copolymer powder having a core/shell structure wherein core particles are made of a fluorinated copolymer and their surfaces are covered by e.g. a (meth)acrylate resin having a glass transition temperature higher than that of the core particles. The core/shell structure is formed by seed polymerization wherein fluorinated polymer particles are used as seeds.
Abstract:
An aqueous dispersion of a fluorocopolymer, which is excellent in stability and film-forming properties as an aqueous dispersion, and which gives a coating film excellent in mechanical strength and improved in transparency, water resistance and stain resistance. A stable aqueous dispersion of a fluorocopolymer obtained in such a manner that a fluorocopolymer comprising polymerized units based on a vinyl monomer having a reactive group as the base is subjected to a composite treatment or a mixing treatment with a (meth)acrylate containing a reactive group capable of forming a bond by reaction with the above reactive group or the like.
Abstract:
A fluorine-containing copolymer comprising (a) polymer units based on a fluoroolefin, (b) polymer units based on a cyclic monomer having, on its ring, an unsaturated group copolymerizable with the fluoroolefin, (c) polymer units based on an ethylenically unsaturated compound having a curable moiety but having neither an ester bond nor an ether bond, and optionally (d) polymer units based on at least one olefin selected from ethylene, propylene and isobutylene, or polymer units based on a vinyl ether having an aliphatic ring, in such proportions that, based on the total amount of polymer units (a), (b), (c) and (d), polymer units (a) are from 35 to 65 mol %, polymer units (b) are from 5 to 45 mol %, polymer units (c) are from 1 to 30 mol % and polymer units (d) are from 0 to 40 mol %, which has a number average molecular weight within a range of from 2,000 to 100,000, as calculated as polystyrene by gel permeation chromatograph, and which has rings based on said cyclic monomer, on the main chain of the copolymer.
Abstract:
A process for preparing an aqueous dispersion, which comprises subjecting a monomer to emulsion polymerization in an aqueous medium in the presence of a fluorine-containing copolymer comprising units derived from a fluoroolefin, and units having a hydrophilic side chain.