Shenzhen Preferred Electronic Copper Foil Price
Calendered copper foil products have good ductility, flexibility, low roughness and high folding resistance, and have become the basic materials of flexible printed circuit boards, mainly used in flexible circuit boards and high-frequency circuit boards.
Shenzhen Preferred Electronic 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.
Shenzhen Preferred Electronic Copper Foil Price
Curing treatment: deposit a layer of dense metal copper in the nodular particle gap of the roughening layer, increase the contact surface between the roughening layer and the wool foil substrate, and reduce the roughness of the roughening layer surface. Microscopically, after rough surface roughening treatment, the foil surface is uneven and undulating greatly, while after curing treatment, the copper foil surface is relatively flat. After curing treatment, although the roughness is reduced, the bonding strength between the treatment layer and the insulating substrate material is improved due to the increased contact area between the roughened layer and the wool foil, which fundamentally eliminates the delamination between the treatment layer and the wool foil.
Shenzhen Preferred Electronic Copper Foil Price
High end lithium battery copper foil needs to meet the requirements of high energy density, high safety, lightweight and other characteristics of power batteries, which is also the development trend of power batteries in the future. In order to meet the above characteristics, thinner lithium copper foil means smaller resistance, so the energy density and other performance of the battery will be improved. Moreover, the thinner the copper foil of lithium battery is, the lighter the weight of the corresponding battery will be.
