Classification Of Electrolytic Copper Foil

Electrolytic copper foil is an important material for copper clad laminate (CCL) and printed circuit board (PCB) manufacturing. In today's rapid development of electronic information industry, electrolytic copper foil is called "electronic products, signal and power transmission and communication" neural network". Since 2002, the production value of printed circuit board in our country has entered the third place in the world. As the substrate material of PCB, CCL has become the third largest producer in the world. As a result, China's electrolytic copper foil industry has made rapid progress in recent years.


Electrolytic copper foil in accordance with the different sub methods, there are many kinds. With the development of electronic information technology, the electrolytic copper foil have raised many newer and higher requirements in variety and quality, promote the development of copper foil technology faster, more and more varieties and specifications is the electrolytic copper foil.


Understand the classification of electrolytic copper foil, but also by the way to understand the difference between the rolled copper foil and electrolytic copper foil:


The difference between rolled copper foil and electrolytic copper foil:


1, the process is different, electrolytic process is completed by electroplating, rolling copper is produced by coating.

2, the performance is not the same, electrolytic copper conductivity is better, and rolled copper around the curve is better, generally bending requirements of the product on the use of rolled copper.

3, electrolytic copper molecules relatively loose, easy to break; rolling copper molecules close, flexible good, thinner, flexible better; phosphorus, rolling copper molecules delicate, after treatment, electroplating light, but flexible than pure rolling copper difference.

4, electrolytic copper is the use of current copper sulfate solution in the precipitation of copper ions, and then by oxidation and roughening process after the completion of the process. The rolled copper is rolled by copper ingot, and then processed by forging, oxidation, roughening and so on. The electrolytic copper rolling copper production is difficult, the whole world at present only three large property, good ductility (up to more than 30%, while the SHTE type of electrolytic copper is only 15% - 20%, the best) is mainly used in the local FPC, notebook computer, tablet computer, printer and other required shield.


 

(Source: internal information)

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