FR4 PCB
FR4 PCBs, or fiberglass-reinforced plastic (FR4) PCBs, are the most widely used type of circuit board in the modern electronics industry. Their core feature is the FR-4 material, a composite of epoxy resin and fiberglass cloth, as the insulating substrate. This type of PCB is distinguished by its excellent electrical insulation, high mechanical strength, and outstanding heat resistance, ensuring stable operation in a variety of environments. For example, a typical double-sided OSP PCB, made from FR-4 material from premium manufacturers like Shengyi, boasts a standard 1.6mm board thickness and a 36µm finished copper thickness, ensuring both structural stability and reliable electrical connections. The OSP (Oxidation Preservation) treatment provides a flat, highly solderable copper surface for soldered components, making it ideal for subsequent reflow soldering. Therefore, FR4 PCBs, with their balanced performance and cost-effectiveness, are widely used in a wide range of applications, including industrial control equipment, automotive electronic systems, smart home appliances, and consumer electronics, making them a classic and reliable choice for carrying circuit functions.
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