摘要:
An NPN bipolar transistor and a PNP bipolar transistor are formed in a semiconductor substrate. The NPN bipolar transistor has a p type emitter region, a p type collector region and an n type base region and is formed in an NPN forming region. The PNP bipolar transistor has an n type emitter region, an n type collector region and a p type base region and is formed in a PNP forming region. Only one conductive type burying region is formed in at least one of the NPN forming region and the PNP forming region. A current that flows from the p type emitter region to the n type base region flows in the n type base region in a direction perpendicular to the substrate.
摘要:
An extra-fine copper alloy twisted wire comprising a plurality of copper alloy wires with a wire diameter of 0.010 to 0.025 mm twisted together, each of the copper alloy wires comprising 1 to 3 weight % of silver (Ag) and a balance consisting of a copper and an inevitable impurity, the copper alloy twisted wire further comprising a tensile strength of not less than 850 MPa, and an electrical conductivity of not less than 85% IACS. The extra-fine copper alloy twisted wire comprises a solid insulation with a thickness of not more than 0.07 mm formed on an outer circumference of the extra-fine insulated wire.
摘要:
A process for forming an ultrafine copper alloy wire is provided. The alloy includes a copper matrix of high purity copper having a total unavoidable impurity content of not more than 10 mass ppm. The matrix contains 0.05 to 0.9 mass % of at least one metallic element of the group of tin, indium, silver, antimony, magnesium, aluminum, and boron. The alloy is melted in a carbon crucible. The molten alloy is cast into a wire rod utilizing a carbon mold. The wire rod is then subjected to a primary wire drawing, an annealing, and a secondary wire drawing. The produced ultrafine copper alloy wire has excellent tensile strength, electrical conductivity, and drawability.
摘要:
A hydrous water absorbent polymer dispersed ultraviolet curable resin composition includes an ultraviolet curable resin composition, and a hydrous water absorbent polymer swollen by water beforehand, and dispersed in the ultraviolet curable resin composition so that the hydrous water absorbent polymer dispersed ultraviolet curable resin composition has a moisture content of not less than 50 percent. The water absorption rate of the ultraviolet curable resin composition is not more than 2 percent.
摘要:
An extra-fine copper alloy twisted wire including a plurality of copper alloy wires with a wire diameter of 0.010 to 0.025 mm twisted together, each of the copper alloy wires including 1 to 3 weight % of silver (Ag) and a balance consisting of a copper and an inevitable impurity, the copper alloy twisted wire further including a tensile strength of not less than 850 MPa, and an electrical conductivity of not less than 85% IACS. The extra-fine copper alloy twisted wire includes a solid insulation with a thickness of not more than 0.07 mm formed on an outer circumference of the extra-fine insulated wire.
摘要:
An extra-fine copper alloy wire has: a wire diameter of 0.010 to 0.025 mm; 1 to 3 weight % of silver (Ag), and a balance consisting copper (Co) and an inevitable impurity; a tensile strength of not less than 850 MPa; an electrical conductivity of not less than 85% IACS; an elongation of 0.5 to 3.0%; and a lowering rate in tensile strength of not more than 2%. The lowering rate is represented by [(1−σh1/σh0)×100%] where σh1 is a tensile strength of the wire measured after a heat treatment under conditions of a heating temperature of not more than 350° C. and a heating time of not more than 5 seconds, and σh0 is a tensile strength of the wire measured before the heat treatment.
摘要:
An ultrafine copper alloy wire drawn to a diameter of not more than 0.08 mm is provided which is formed of an alloy having a copper matrix of high purity copper with a total unavoidable impurity content of not more than 10 mass ppm. Contained in the matrix is 0.05 to 0.9 mass % of at least one metallic element selected from the group including tin, indium, silver, antimony, magnesium, aluminum, and boron. By virtue of this constitution, the ultrafine copper alloy wire has excellent tensile strength, electrical conductivity, and drawability.
摘要:
A method of manufacturing a porous ultraviolet curable resin coated wire includes (a) preparing an ultraviolet curable resin composition not including a hydrous water absorbent polymer, (b) preparing a hydrous water absorbent polymer-dispersed ultraviolet curable resin composition having a water content of 40% or more by preparing a water-swollen hydrous water absorbent polymer including a water absorbent polymer and water, and then dispersing the hydrous water absorbent polymer into the ultraviolet curable resin composition, (c) forming a two-layer structure on a metal wire by coating the metal wire with the ultraviolet curable resin composition not including the hydrous water absorbent polymer and the hydrous water absorbent polymer, and (d) performing a dehydration on the two-layer structure.
摘要:
An extra-fine copper alloy wire has: a wire diameter of 0.010 to 0.025 mm; 1 to 3 weight % of silver (Ag), and a balance consisting copper (Co) and an inevitable impurity; a tensile strength of not less than 850 MPa; an electrical conductivity of not less than 85% IACS; an elongation of 0.5 to 3.0%; and a lowering rate in tensile strength of not more than 2%. The lowering rate is represented by [(1−σh1/σh0)×100%] where σh1 is a tensile strength of the wire measured after a heat treatment under conditions of a heating temperature of not more than 350° C. and a heating time of not more than 5 seconds, and σh0 is a tensile strength of the wire measured before the heat treatment.
摘要:
This invention provides a composite conductor having excellent strength, flexing resistance and corrosion resistance, a production method thereof and a cable employing the same composite conductor. A corrosion resistant layer is formed of Au, Ag, Sn, Ni, solder, Zn, Pd, Sn—Ni alloy, Ni—Co alloy, Ni—P alloy, Ni—Co—P alloy, Cu—Zn alloy, Sn—Bi alloy, Sn—Ag—cu alloy, Sn—Cu alloy or Sn—Zn alloy in the thickness of 0.5 &mgr;m or more on an external periphery of a core made of copper-metal fiber conductor. A wire material made of the copper-metal fiber conductor is subjected to area reduction processing. In the middle of the area reduction processing or after the area reduction processing is completed, corrosion resistant layer is formed on the periphery of the wire material in the thickness of 0.5 &mgr;m or more by plating with Au, Ag, Sn, Ni, solder, Zn, Pd, Sn—Ni alloy, Ni—Co alloy, Ni—P alloy, Ni—Co—P alloy, Cu—Zn alloy, Sn—Bi alloy, Sn—Ag—Cu alloy, Sn—Cu alloy or Sn—Zn alloy.