Do boards of PCB boards, in addition to materials such as copper clad panels, have any other material boards?
Classified according to the resin adhesive used on the plate, the common paper-based CCI. There are: phenolic resin (XPc, XxxPC, FR, 1, FR, a, 2, etc.), epoxy resin (FE, 3), polyester resin and other types. Glass cloth CCL common epoxy resin (FR-4, FR-5), it is the most widely used type of glass fiber cloth at. In addition to other special resin (glass fiber cloth, poly amide fibers, non-woven fabrics and other materials to increase): bismaleimide modified three triazine resin (BT), polyimide resin (PI), two phenylene ether resin (PPO), maleic anhydride imide - styrene resin (MS), poly isocyanate ester resin, polyolefin resin etc..
According to the flame retardant properties of CCL classification, can be divided into flame retardant (UL94, VO, UL94, a V1 class) and non flame retardant (UL94, HB level) two kinds of plates. In the past one or two years, with the increasing attention to environmental protection, a new type of non brominated CCL has been isolated in flame retardant CCL, which can be called "green flame retardant cCL"". With the rapid development of electronic product technology, cCL has higher performance requirements. Therefore, the performance classification of CCL is divided into general performance CCL, low dielectric constant CCL, high heat resistance CCL (general board L above 150 degrees), low thermal expansion coefficient CCL (commonly used for packaging substrate) and so on.
According to the general board reinforced with different materials can be divided into: paper base, glass fiber cloth, composite base (CEM Series), build up multilayer plate base and special material (ceramic, metal core based) five categories.
They are CCL, but there are many kinds of substrates.
