Printed circuit boards are usually bonded with a layer of copper foil on glass epoxy substrate. The thickness of copper foil is usually 18 μ m, 35 μ m, 55 μ m and 70 μ M. The most commonly used copper foil thickness is 35 μ M. When the weight of copper is more than 70UM, it is called heavy copper PCB
Read MoreSend Inquiry28OZ Heavy copper PCB Ultra-thick copper multilayer printed boards are generally special types of printed circuit boards. The main features of such printed circuit boards are 4-12 layers, the inner layer copper thickness is greater than 10OZ, and the quality is high. The following is about 28OZ Heavy Copper Board related, I hope to help you better understand 28OZ Heavy Copper Board.
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