A kind of nickel plating solution applied to printed circuit board and electroplating nickel method thereof

A printed circuit board, electroplating nickel technology, applied in the direction of printed circuit, printed circuit manufacturing, electrical components, etc., can solve the problems of electroplating cannot be carried out normally, the plating layer has no bonding force with the substrate, and the stability of the electroplating nickel solution is poor, so as to achieve good Colloidal properties and dispersing effects, accelerating the activation reaction speed, and avoiding the effect of metal ion deposition
CN113789553BActive Publication Date: 2022-02-08SHENZHEN CHENGGONG CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN CHENGGONG CHEM
Publication Date
2022-02-08

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Abstract

The invention discloses a nickel plating solution applied to printed circuit boards and a nickel electroplating method thereof, comprising components with the following mass concentrations: nickel salt 35-50g / L; conductive salt 20-40g / L; anti-aging agent 10 ‑15g / L; composite complexing agent 5‑15g / L; reaction accelerator 50‑80mg / L; stress reliever 50‑80mg / L; surfactant 5‑10mg / L; composite stabilizer 0.2‑5mg / L ; The composite complexing agent includes A component and B component, and the A component and the B component are 3:1-2 according to the mass concentration ratio; the A component includes a mass concentration of 1-5g / L citric acid, 1‑2g / L ammonium acetate, 1‑5g / L malic acid. The solution of the invention ensures the bond strength between the plating layer and the substrate, so that the nickel plating layer has good adhesion and uniformity of the plating layer; the process not only ensures the uniformity of electroplating, but also shortens the electroplating time.
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Description

technical field

[0001] The invention relates to the technical field of nickel electroplating, in particular to a nickel plating solution applied to printed circuit boards and a nickel electroplating method thereof. Background technique

[0002] Printed circuit board (PCB circuit board), also known as printed circuit board, is the provider of electrical connections for electronic components. Printed circuit boards have developed from single-layer to double-sided, multi-layer and flexible boards, and are constantly developing in the direction of high precision, high density and high reliability. Continuous reduction in size, cost reduction, and performance improvement enable printed circuit boards to maintain strong vitality in the development of future electronic products.

[0003] The future development trend of printed circuit board manufacturing technology is to develop in the direction of high density, high precision, fine aperture, thin wire, small pitch, high reliabili...

Claims

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