Due to the high price of copper, aluminum has become an important alternative to copper and has become a trend in the manufacture of printed circuit board. along with
With the expansion of the application of flexible printed circuit board, the application of aluminum foil in flexible printed circuit board is also possible. Using aluminum foil instead of copper foil can not only reduce the product quality, but also reduce the cost, which is of great significance.
Using aluminum foil instead of copper foil to manufacture flexible printed boards has the following characteristics Point:
1) Low cost
The price of aluminum is only less than 1 / 3 of that of copper, which has obvious economic benefits for reducing the cost of products.
2) Light weight
The density of aluminum is only less than 1 / 3 of that of copper, which is also of great significance to reduce the quality of the whole machine.
3) Good thickness selectivity
Aluminum foil can be easily and freely processed into various thicknesses, which is better than copper, thus increasing the selectivity of circuit board thickness.
4) Good flexibility. Aluminum foil has good flexibility. It is a very suitable material for flexible printed boards.
5) Good heat dissipation. Like copper, aluminum is also a good conductor of heat, so it has good heat dissipation performance.
Aluminum foil PCB use 1xxx, common 123510601070. Common high-strength PCBs are of the same series. The first series is commonly used in household foil, packaging and printing, generally 1050 1060. There have also been 3 series of aluminum foil, which is said to improve the strength, but we haven't seen practical application.
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