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Copper treatment solution attached to the surface of a flying target fixture

A technology for treating liquid and fixture, applied in the field of metal surface treatment, can solve the problems of insufficient stability of concentrated nitric acid, volatile, health hazards of operators, etc., so as to increase the amount of dissolved copper in the solution, improve surface activity, and improve reaction stability. sexual effect

Active Publication Date: 2021-09-03
深圳市航盛电路科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nature of concentrated nitric acid is not stable enough, and it is easy to volatilize nitrogen dioxide, and concentrated nitric acid will also generate nitrogen dioxide in the process of reacting with metal copper. Nitrogen dioxide is a brown-red toxic gas with strong irritation.
Therefore, this method is extremely harmful to the health of operators.

Method used

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  • Copper treatment solution attached to the surface of a flying target fixture
  • Copper treatment solution attached to the surface of a flying target fixture
  • Copper treatment solution attached to the surface of a flying target fixture

Examples

Experimental program
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Embodiment 1

[0026] Embodiment 1, a copper treatment solution attached to the surface of a flying target fixture, includes the following components.

[0027]

Embodiment 2

[0028] Embodiment 2, a copper treatment solution attached to the surface of a flying target fixture, includes the following components.

[0029]

Embodiment 3

[0030] Embodiment 3, a copper treatment solution attached to the surface of a flying target fixture, includes the following components.

[0031]

[0032]

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PUM

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Abstract

The invention relates to a treatment solution for attaching copper to the surface of a flying target fixture, which comprises the following components in parts by mass: 50-65 parts of dilute sulfuric acid solution, 8-12 parts of hydrogen peroxide solution, 8-12 parts of stabilizer, and citric acid solution 10-15 parts and 4-8 parts of sodium citrate powder and 3-6 parts of sodium dodecylbenzenesulfonate or urotropine; the stabilizer includes at least 75-85 parts of deionized water, 3-6 parts of ethanol solution and 2-5 parts of sulfonic acid compound. The invention has the effect of reducing the volatility of the treatment liquid and preventing it from endangering the health of operators.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a copper treatment solution for attaching copper to the surface of a flying target fixture. Background technique [0002] PCB circuit board, also known as printed circuit board, is a provider of electrical connections for electronic components. Copper electroplating is usually required when preparing PCB boards in industry. Copper is used to interconnect components on PCB boards and is a good conductor material for forming PCB conductive path board surface graphics. In the process of PCB board electroplating, it is usually necessary to use a dart fixture to clamp the PCB board. Since the end of the dart fixture is often soaked in the electroplating solution, the surface of the dart fixture is easy to attach metal copper to form a layer of copper attachment surface. When the dart fixture clamps the next unplated PCB board, the attached copper on its surface is eas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F1/18C25D21/00H05K3/18
CPCC23F1/18C25D21/00H05K3/188
Inventor 肖锦鸿庄展鹏李党党
Owner 深圳市航盛电路科技股份有限公司
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