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from fiberglass weaving and epoxy resin impregnation to copper lamination and quality inspection. Understand the process behind the industry’s most widely used PCB substrate.
FR4 is the most widely used PCB substrate in the electronics industry. It combines good electrical insulation, mechanical strength, thermal stability, and cost efficiency, making it suitable for a wide range of commercial and industrial applications. This article explains what FR4 is, how it is manufactured, its properties, advantages, limitations, and when it is the right choice for a PCB project.
FR4 is the most commonly used PCB substrate material because it offers a good balance of electrical performance, mechanical strength, thermal stability, and manufacturing cost. This article explains what FR4 is, how it is manufactured, where it performs well, and when another PCB material may be a better choice.