Zhanjiang Preferred Copper Foil Price
Electrolytic copper foil is made by dissolving copper into copper sulfate solution, electrodepositing the copper sulfate electrolyte under the action of direct current in special electrolytic equipment to make the original foil, and then carrying out surface treatment, heat-resistant layer treatment, oxidation prevention treatment and other surface treatment processes on the original foil according to customer requirements.
Zhanjiang Preferred Copper Foil Price
Electronic circuit copper foil plays an important role in conducting electricity and heat in printed circuit board (PCB), and is known as the neural network on PCB. At present, copper foil for electronic circuits (PCB copper foil) is divided into two categories, namely conventional copper foil and high-performance copper foil.
Zhanjiang Preferred Copper Foil Price
With the development of high-density wiring technology for low profile copper foil multilayer boards, the traditional type cannot meet the needs of manufacturing high-precision printed circuit boards. Therefore, a new generation of copper foils, low profile (LP) and ultra-low profile (VLP), have emerged one after another. Compared with ordinary electrolytic copper foil, LP copper foil has fine crystal (2/zm), equiaxed grains, no columnar crystals, lamellar crystals, flat prisms and low surface roughness.
Zhanjiang Preferred Copper Foil Price
According to the burning degree of the substrate in the flame and after leaving the ignition source, it can be divided into general type and self extinguishing type; According to the bending degree of the substrate, it can be divided into rigid and flexible laminates; According to the working temperature and working environment conditions of the substrate, it can be divided into heat resistant, radiation resistant, high-frequency foil clad plate, etc. In addition, there are also laminates used in special occasions, such as prefabricated inner laminates, metal based laminates, and copper foil, nickel foil, silver foil, aluminum foil, Kang copper foil, beryllium copper foil laminates according to the type of foil.
Zhanjiang Preferred Copper Foil Price
The air supply of general air conditioning has a large impact. For the stains caused by the dirty electrolyte, the filtering of electrolyte should be strengthened. After being transferred from the electrolytic cell, the copper foil must be washed with electrolyte, because the surface of the copper foil is attached with organic matter or other impurities. The water pressure of copper foil washing must have enough pressure and a certain amount of water.
Zhanjiang Preferred Copper Foil Price
The ultra-thin copper foil, represented by mobile phones and laptops, is promoted to thin foil and ultra-thin foil types for portable electronic products, including micro buried, blind hole L multilayer boards, and BGA, CSP and other organic resin packaging substrates. At the same time, COz laser etching also requires the substrate to be extremely thin, so that the copper foil layer can be directly machined with micro wire holes. In Japan, the United States and other countries, electrolytic copper foils of 9 μ m, 5 μ m and 3/- tm can be industrialized. At present, the difficulty or key point of the production technology of ultra-thin copper foil is whether it can be directly produced without carrier, and the product qualification rate is high, as well as the development of new carriers.
