Electronic control unit
    6.
    发明授权

    公开(公告)号:US12018710B2

    公开(公告)日:2024-06-25

    申请号:US17272043

    申请日:2019-08-27

    摘要: An object of the invention is to provide an electronic control unit having a structure that suppresses corrosion of plating and completely seals the substrate side under an environment where corrosion occurs. An electronic control unit 1 includes a printed wiring board 10 in which electronic components are provided, a case 20 in which the printed wiring board 10 is accommodated, and a cover 22 that is provided on the case 20. The case 20 and the cover 22 have joint surfaces that face each other and are connected via a sealing material 28. The joint surface is provided with a screw 30 that passes through the cover 22 or the case 20. A plating 24 is provided in a surface of the case 20 or the cover 22 that is provided with a through hole through which the screw 30 penetrates. An exposed portion 25a of a base material formed by partially peeling off the plating 24 presents inside the case 20 or the cover 22 and on an inner side of the case 20 from the through hole. The sealing material 28 has penetrated into the exposed portion 25a of the base material.

    CHIP COMPONENT AND CHIP COMPONENT PRODUCTION METHOD

    公开(公告)号:US20240153678A1

    公开(公告)日:2024-05-09

    申请号:US17769311

    申请日:2020-09-24

    申请人: KOA CORPORATION

    摘要: A chip component 10 comprises: an insulating substrate 1 on which a resistor 3 serving as a functional element is formed; a pair of internal electrodes (front electrodes 2, end surface electrodes 6, and back electrodes 5) that is formed to cover both end portions of the insulating substrate 1 and connected to the resistor 3; a barrier layer 8 that is formed on a surface of each of the internal electrodes and mainly composed of nickel; and an external connection layer 9 that is formed on a surface of the barrier layer 8 and mainly composed of tin, and the barrier layer 8 is composed of alloy plating (Ni—P) including nickel and phosphorus, which is formed by electrolytic plating, and a content rate of phosphorus in the alloy plating of an inner region is made different from that of an outer region so that at least the inner region of the barrier layer 8 has magnetic properties.

    Surface-treated copper foil and method for manufacturing same

    公开(公告)号:US11952675B2

    公开(公告)日:2024-04-09

    申请号:US17787847

    申请日:2020-11-10

    摘要: Provided is a surface-treated copper foil in which in order to avoid failures of electronic parts by corrosion, a high bond strength between an electrolytic copper foil and a resin base material can be maintained even when the surface-treated copper foil is exposed to corrosive gases and microparticles, and a method for manufacturing the same. The surface-treated copper foil of the present invention comprises an electrolytic copper foil, a roughened layer covering at least one surface side of the electrolytic copper foil, and a rust preventive layer further covering the roughened layer, wherein the rust preventive layer is at least one surface of the surface-treated copper foil; the rust preventive layer comprises at least a nickel layer; and the thickness of the nickel layer is 0.8 to 4.4 g/m2 in terms of mass per unit area of nickel; and the noncontact roughness Spd of the rust preventive layer is 1.4 to 2.6 peaks/μm2 and the surface roughness RzJIS of the rust preventive layer is 1.0 to 2.5 μm. The method for manufacturing the surface-treated copper foil forms the roughened layer having higher roughnesses than the noncontact roughness Spd and surface roughness RzJIS on one surface of the electrolytic copper foil, and thereafter forming the rust preventive layer meeting the predetermined condition.