Abstract: A signal transmission cable includes a signal line, an insulation layer configured to cover the signal line, and a plating layer configured to cover the insulation layer. An arithmetic average roughness Ra of an outer peripheral surface of the insulation layer is between 0.6 ?m and 10 ?m inclusive. A method of manufacturing the signal transmission cable includes covering the signal line with the insulation layer, followed by conducting a dry-ice-blasting on the outer peripheral surface of the insulation layer, followed by conducting a corona discharge exposure process on the outer peripheral surface, and forming the plating layer on the outer peripheral surface.

Abstract: A signal transmission cable includes a signal line, an insulation layer configured to cover the signal line, and a plating layer configured to cover the insulation layer. An arithmetic average roughness Ra of an outer peripheral surface of the insulation layer is between 0.6 ?m and 10 ?m inclusive. A method of manufacturing the signal transmission cable includes covering the signal line with the insulation layer, followed by conducting a dry-ice-blasting on the outer peripheral surface of the insulation layer, followed by conducting a corona discharge exposure process on the outer peripheral surface, and forming the plating layer on the outer peripheral surface.

Abstract: A signal transmission cable includes a signal line, an insulation layer configured to cover the signal line, and a plating layer configured to cover the insulation layer. An arithmetic average roughness Ra of an outer peripheral surface of the insulation layer is between 0.6 ?m and 10 ?m inclusive. A method of manufacturing the signal transmission cable includes covering the signal line with the insulation layer, followed by conducting a dry-ice-blasting on the outer peripheral surface of the insulation layer, followed by conducting a corona discharge exposure process on the outer peripheral surface, and forming the plating layer on the outer peripheral surface.

Abstract: Provided is a differential signal transmission cable, a multi-core cable, and a method of manufacturing a differential signal transmission cable that can suppress an increase in differential-to-common mode conversion quantity. The differential signal transmission cable includes two signal lines, an insulation layer covering a periphery of the two signal lines, and a plating layer covering the insulation layer. Differential-to-common mode conversion quantity of the differential signal transmission cable has a maximum value of ?26 dB or less, in a frequency band of 50 GHz or less. In the method of manufacturing a differential signal transmission cable, dry ice blasting is performed on an outer peripheral surface of the insulation layer, and then corona discharge exposure is performed on the outer peripheral surface.

Abstract: A method of producing a refined copper includes depositing the refined copper on a cathode by an electroplating process or an electroless plating process in an alkaline plating bath including a solution of a copper compound that includes none of sulfur, chlorine and oxygen elements and produces copper ions having a valence of +1 in the solution.

Abstract: A crimping terminal includes a crimping part that is compressed to a conductive part of an electric wire, and a buffer layer formed on a surface where the crimping part contacts the conductive part. The buffer layer includes a resin, a plating or a grease and a conductive microscopic particle that is mixed and dispersed therein. The microscopic particle includes a fractal structure including a fine protrusion on a surface of the microscopic particle.

Abstract: A signal transmission cable includes a signal line, an insulation layer configured to cover the signal line, and a plating layer configured to cover the insulation layer. An arithmetic average roughness Ra of an outer peripheral surface of the insulation layer is between 0.6 ?m and 10 ?m inclusive. A method of manufacturing the signal transmission cable includes covering the signal line with the insulation layer, followed by conducting a dry-ice-blasting on the outer peripheral surface of the insulation layer, followed by conducting a corona discharge exposure process on the outer peripheral surface, and forming the plating layer on the outer peripheral surface.

Abstract: Provided is a differential signal transmission cable, a multi-core cable, and a method of manufacturing a differential signal transmission cable that can suppress an increase in differential-to-common mode conversion quantity. The differential signal transmission cable includes two signal lines, an insulation layer covering a periphery of the two signal lines, and a plating layer covering the insulation layer. Differential-to-common mode conversion quantity of the differential signal transmission cable has a maximum value of ?26 dB or less, in a frequency band of 50 GHz or less. In the method of manufacturing a differential signal transmission cable, dry ice blasting is performed on an outer peripheral surface of the insulation layer, and then corona discharge exposure is performed on the outer peripheral surface.

Abstract: A crimping terminal includes a crimping part that is compressed to a conductive part of an electric wire, and a buffer layer formed on a surface where the crimping part contacts the conductive part. The buffer layer includes a resin, a plating or a grease and a conductive microscopic particle that is mixed and dispersed therein. The microscopic particle includes a fractal structure including a fine protrusion on a surface of the microscopic particle.

Abstract: A rectangular conductor for a solar battery and a lead wire for a solar battery, in which warping or damaging of a silicon crystal wafer is hard to occur at the time of bonding a connection lead wire even when a silicon crystal wafer is configured to have a thin sheet structure, can be provided. A conductor 1 having a volume resistivity equal to or less than 50 ??·mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test is formed into a rectangular conductor 10 for a solar battery having a rectangular cross section, and a surface of the rectangular conductor 10 for a solar battery is coated with a solder plating film 13, to provide a lead wire 20 for a solar battery.

Abstract: A method of producing a refined copper includes depositing the refined copper on a cathode by an electroplating process or an electroless plating process in an alkaline plating bath including a solution of a copper compound that includes none of sulfur, chlorine and oxygen elements and produces copper ions having a valence of +1 in the solution.

Abstract: A rectangular conductor for a solar battery and a lead wire for a solar battery, in which warping or damaging of a silicon crystal wafer is hard to occur at the time of bonding a connection lead wire even when a silicon crystal wafer is configured to have a thin sheet structure, can be provided. A conductor 1 having a volume resistivity equal to or less than 50 ??·mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test is formed into a rectangular conductor 10 for a solar battery having a rectangular cross section, and a surface of the rectangular conductor 10 for a solar battery is coated with a solder plating film 13, to provide a lead wire 20 for a solar battery.

Abstract: A rectangular conductor for a solar battery and a lead wire for a solar battery, in which warping or damaging of a silicon crystal wafer is hard to occur at the time of bonding a connection lead wire even when a silicon crystal wafer is configured to have a thin sheet structure, can be provided. A conductor 1 having a volume resistivity equal to or less than 50 ??·mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test is formed into a rectangular conductor 10 for a solar battery having a rectangular cross section, and a surface of the rectangular conductor 10 for a solar battery is coated with a solder plating film 13, to provide a lead wire 20 for a solar battery.

Abstract: A solar cell lead wire includes a molten solder plated layer on a strip-shaped conductive material. The thickness of the oxide film on a surface to the molten solder plate layer is suppressed to be not more than 7 nm.

Abstract: A rectangular conductor for a solar battery and a lead wire for a solar battery, in which warping or damaging of a silicon crystal wafer is hard to occur at the time of bonding a connection lead wire even when a silicon crystal wafer is configured to have a thin sheet structure, can be provided. A conductor 1 having a volume resistivity equal to or less than 50 ??·mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test is formed into a rectangular conductor 10 for a solar battery having a rectangular cross section, and a surface of the rectangular conductor 10 for a solar battery is coated with a solder plating film 13, to provide a lead wire 20 for a solar battery.

Abstract: A solar cell lead wire includes a molten solder plated layer on a strip-shaped conductive material formed rectangular in a cross section thereof so as to be bonded by soldering to an electrode of a solar cell, using a flux. A thickness of an oxide film on a surface of the molten solder plated layer, which is a sum of a thickness of an SnO layer and a thickness of an SnO2 layer on the surface of the molten solder plated layer, is not more than 7 nm.

Abstract: A rectangular conductor for a solar battery and a lead wire for a solar battery, in which warping or damaging of a silicon crystal wafer is hard to occur at the time of bonding a connection lead wire even when a silicon crystal wafer is configured to have a thin sheet structure, can be provided. A conductor 1 having a volume resistivity equal to or less than 50 ??·mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test is formed into a rectangular conductor 10 for a solar battery having a rectangular cross section, and a surface of the rectangular conductor 10 for a solar battery is coated with a solder plating film 13, to provide a lead wire 20 for a solar battery.

Abstract: A copper alloy material includes an additional element M including Ti, and a balance having copper and an inevitable impurity. An atomic ratio of the additional element M to oxygen is in a range of 0.33?M/O?1.5.

Abstract: A rectangular conductor for a solar battery and a lead wire for a solar battery, in which warping or damaging of a silicon crystal wafer is hard to occur at the time of bonding a connection lead wire even when a silicon crystal wafer is configured to have a thin sheet structure, can be provided. A conductor 1 having a volume resistivity equal to or less than 50 ??·mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test is formed into a rectangular conductor 10 for a solar battery having a rectangular cross section, and a surface of the rectangular conductor 10 for a solar battery is coated with a solder plating film 13, to provide a lead wire 20 for a solar battery.

Abstract: A resin composition includes a polyolefin resin. A viscosity of the resin composition is within a range of not less than 500 Pa·s and not more than 2300 Pa·s under measurement conditions of a measurement temperature of 170° C. and a measurement frequency of 1 Hz. A strain hardening rate of the resin composition in uniaxial elongational viscosity measured under measurement conditions of a measurement temperature of 150° C. and a strain rate of 3.0 s?1 is not less than 800%. A foam insulated wire includes a conductor, and a foam insulation of the resin composition extruded on an outer periphery of thereof. A diameter of the conductor is 3.5 to 18 mm, and an outer diameter of the foam insulation is not less than 8 mm.