What is standard FR4 pcb?
Fr-4 is a code name for a fire resistant material grade, which means that the resin material must be able to extinguish itself after burning. It is not a material name, but a material grade.
As a result, there are many fr-4 grade materials used in custom pcb fabrication, but most of them are made from tera-function epoxy resin, Filler, and fiberglass.
The characteristics
Fr-4 epoxy glass fiber cloth substrate is a kind of substrate with epoxy resin as adhesive and electronic grade glass fiber cloth as reinforcement material. Its adhesive sheet and inner core thin coppered board are important substrates for making multilayer printed circuit board.
Performance
The mechanical properties, dimensional stability, impact resistance and moisture resistance of epoxy glass fiber fabric substrate are higher than that of paper substrate. Its electrical performance is excellent, the working temperature is high, its own performance is less affected by the environment. In processing technology, compared with other resin glass fiber cloth substrate has a great advantage. This kind of product is mainly used for double-sided PCB, the dosage is very large.
Application
Epoxy glass fiber cloth substrate, the most widely used product model is FR-4, not only used on low cost pcb manufacturing and prototype pcb process,due to the installation technology of electronic products and PCB technology development needs, and high Tg FR4 pcb and heavy copper board.
