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PCB copper electroplating groove

A technology of electroplating copper and tank body, which is applied in the direction of electrical components, electrolytic process, electrolytic components, etc., can solve the problems that cannot meet the quality and safety requirements of PCB, shorten the periodical maintenance time, and reduce the pollution of copper tank liquid, etc., to achieve Prevent pollution, improve the quality of electroplating, and reduce the effect of copper slag and impurities in copper tank

Active Publication Date: 2014-12-03
南通胜宏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is difficult to reduce the pollution of the copper bath bath and shorten the periodical maintenance time, thus affecting the production capacity
As PCBs become more and more high-end product types, this filtering method can no longer meet the quality and safety requirements of PCB production

Method used

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  • PCB copper electroplating groove
  • PCB copper electroplating groove
  • PCB copper electroplating groove

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 , 2 , 3, a copper electroplating tank for PCB, including a tank body 1, two anodes 2 arranged on both sides of the tank body and a floating board frame 3 arranged in the middle of the tank body for placing PCB boards, below the floating board frame One end of the tank body is provided with a water inlet 5, and a filter screen installation slot 4 is provided between the floating plate frame and the two anodes close to the floating plate frame, and a filter screen is installed on the filter screen installation slot, and the filter screen passes through the fixed base frame and the The plugging of the filter screen installation groove is installed in the tank body, and one end of the tank body between the filter screen and the two anodes is provided with a water outlet 6 for an external filter. In the utility model, a filter screen is arranged in the tank body, combined with the water inlet and the outlet of the external filter, the tank liquid flows betw...

Embodiment 2

[0029] The PCB electroplating copper tank of this embodiment is the same as most of them, the difference is that the filter screen of this embodiment is provided with seven clamping columns 8 vertically arranged on the fixed base frame and six clamping columns installed between the clamping columns. filter sheet 9. And the length of the filter screen is 6000mm, and the filter screen is provided with six equidistant and side-by-side clamping columns, the distance between adjacent clamping columns is 1000mm, and the length of the clamping columns is preferably 900mm. The width of the groove on the card post should be 50mm. In addition, in this embodiment, the filter cloth is polypropylene filter cloth.

[0030] After the PCB electroplating copper tank of this embodiment is applied to the PCB electroplating process, it can also effectively improve the filtration efficiency, and use the copper particles produced by the anode to isolate them from the cathode, which helps to reduce...

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Abstract

The invention relates to a PCB copper electroplating groove, which comprises a groove body, two positive electrodes disposed on two sidewalls of the groove body and a kickboard rack which is arranged in the middle of the groove body and is used for disposing a PCB. One end of the groove body below the kickboard rack is provided with a water inlet. An installation groove for a screen filter is disposed near the kickboard rack between the kickboard rack and the two positive electrodes. The installation groove for the screen filter is provided with the screen filter. One end of the groove body between the screen filter and the two positive electrodes is provided with a water outlet externally connected with a filter. The screen filter concretely contains a fixed pedestal, a plurality of clamp poles vertically arranged on the fixed pedestal and a plurality of filters installed between the clamp poles, wherein the filter comprises a bracing frame, a handle arranged on the top of the bracing frame and filter cloth arranged on the side surface of the bracing frame; strip-shaped grooves are disposed on the side of the clamp poles; strip-shaped bosses are correspondingly arranged on the two sides of the filters; and the filters can be detachably installed on the clamp poles through the joint of the bosses and the grooves. According to the invention, copper ash and impurities in the copper grooves can be effectively minimized and the copper electroplating groove pollution can be prevented.

Description

technical field [0001] The invention relates to the technical field of PCB auxiliary fixtures, in particular to a PCB copper plating bath. Background technique [0002] Electroplating is an essential process in the PCB manufacturing process. Its main function is to remove the slag left on the hole wall after drilling to metallize the hole wall, and use electroplating to thicken the surface copper thickness to meet the requirements of customers and post-production processes. , Use positive tin-lead plating to form etching aids to form circuits on the board surface. In the industry, in order to ensure the anode copper particles in the electroplating copper tank, the anode bag is usually covered with a titanium basket; at the same time, in order to ensure the cleanliness of the copper tank liquid, a filter cotton core is used for filtration. However, this method is difficult to reduce the pollution of the copper bath bath and shorten the periodical maintenance time, thus affec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D7/00C25D17/00C25D21/06H05K3/18
Inventor 龚俊张晃初杨震
Owner 南通胜宏科技有限公司
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