Title:
INDUCTANCE DEVICE ELECTRODE PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/008635
Kind Code:
A2
Abstract:
Disclosed is an inductance device electrode preparation method, comprising: S1, surface insulation treatment, specifically: placing an inductance device in a obliquely rotating spray pot body, and using a fixed spray gun to perform thermal spraying of a resin for the surface insulation treatment; S2, inner electrode exposure, specifically: using laser or mechanical polishing to process electrode areas so as to expose inner electrodes; S3, surface pre-treatment, specifically: performing degreasing or ultrasonic surface pre-treatment in a special solution; S4, surface activation treatment, specifically: performing ultrasonic surface activation treatment in a low concentration acid solution; S5, metal layer electroplating, specifically: first plating a copper layer, then plating a nickel layer, and finally plating a tin layer; S6, surface post-treatment, specifically: first performing neutralizing, washing and anti-oxidation treatment, then washing with pure water, and finally performing vacuum drying. The present invention can effectively reduce contact resistance and electrode layer thickness, decrease costs, and increase efficiency. In addition, the equipment is simple.
Inventors:
QIN HAO (CN)
XIANG MINGLIANG (CN)
XIANG MINGLIANG (CN)
Application Number:
PCT/CN2020/119164
Publication Date:
January 21, 2021
Filing Date:
September 30, 2020
Export Citation:
Assignee:
SHENZHEN HUALUO ELECTRONICS CO LTD (CN)
International Classes:
C25D5/12; C25D3/12; C25D3/38; C25D7/00; H01F41/00
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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