DQS Electronic Co., Limited
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Customized 0.5-15OZ Heavy Copper PCB Manufacturer
♦ What is Heavy Copper PCB?
A Heavy Copper PCB is a printed circuit board that contains copper conductors 3 oz/ft² (≈ 105 µm) or thicker on any layer; the term is usually reserved for boards with ≥ 4 oz (≈ 140 µm) and can go up to 20 oz (≈ 700 µm) or more. The thick copper carries high continuous currents (tens to thousands of amps), provides low resistance and excellent thermal conductivity, and acts as an integral heat-sink. These boards are built by laminating thick copper foils or electro-plating to raise copper weight, then deep-etching to form traces and pads. Typical applications include power converters, motor drives, welding equipment, solar inverters, automotive battery-management systems, and military/aerospace power supplies.
♦ Technical Parameters
