Heavy Copper PCB Fabrication

• copper thicknesses greater than 2 oz

What is Heavy Copper PCB? Heavy copper PCBs, also known as heavy copper weight PCBs, are circuit boards with copper thicknesses exceeding the typical range found in standard PCBs. While standard PCBs usually have copper thicknesses ranging from 1 oz to 3 oz (35 μm to 105 μm), heavy copper PCBs have copper thicknesses greater than 2 oz (70 μm). The term “heavy copper” is preferred over “thick copper” to describe these PCBs. The copper weight of heavy copper PCBs can vary, with common weights including 2 oz (70 μm), 3 oz (105 μm), 4 oz (140 μm), 6 oz (210 μm), 8 oz (280 μm), and 10 oz (350 μm).  https://Hitechcircuits.com/pcb-products/heavy-copper-pcb/

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