Heavy copper PCB is a circuit board with a copper thickness that is ≥ 3oz per sq. ft in its outer and inner layers. What makes a circuit board classified as a heavy copper PCB is its thicker plating. During the production of heavy copper PCB, copper thickness is enhanced through plated holes and sidewalls. For instance, when a PCB has 2 ounces of copper per sq. ft thickness, it is a standard PCB. However, if it has more than 3oz of copper, it is a heavy copper PCB. Heavy copper PCB is considered a reliable wiring option. Heavy copper PCB is different from extreme copper PCB which features within 20 oz to 200 oz per sq. ft. <br> <br>Heavy copper PCB has a lot to offer. It has got some unique features that make it an ideal option for high-end applications. <br>1.Great thermal distribution: Due to its copper-plated vias, this PCB offers high thermal resistance. Heavy copper PCB are used in applications that demand high speed and high frequency. You can also use this PCB at harsh temperatures. <br>2.Mechanical strength: Heavy copper PCB feature great mechanical strength. When this PCB is used, it makes the electrical system durable and robust. <br>3.Good conductor: Heavy copper circuit boards are a good conductor. They are utilized in the production of electronics due to this feature. They help to link various boards together. These boards can transfer current. <br> <br>Applications of Heavy Copper PCB: <br>-Solar energy converter <br>-Track traction system <br>-Nuclear power industry <br>-Automobile industry <br>-UPS system <br>-Protective relay <br>-Torque control <br>-Safety and signal system <br>-Welding equipment <br>-Power line motor <br>-Military equipment