According to the mechanical rigidity of copper clad laminate, it can be divided into rigid copper clad laminate (CCI.) and flexible copper clad laminate (FCCI). Usually rigid copper clad laminates are laminated.
Printed circuit board substrate materials can be divided into: single and double-sided PCB substrate materials; multilayer board substrate materials (inner core thin copper clad laminate, prepreg, prefabricated inner layer multilayer board); laminated multilayer board substrate materials (Organic resin film, resin coated copper foil, photosensitive insulating resin or resin film, organic coating resin, etc.) etc. Among them, the most commonly used substrate material product form is copper clad laminate. There are many varieties of CCL products. They are classified according to different rules.
The substrate material is divided according to the composition of different insulating materials
According to the different insulating material components that constitute the PCB substrate material, it can be divided into two major categories of substrate materials composed of organic materials and inorganic materials, and they have different small categories and varieties. This article introduces the variety of PCB substrate materials divided according to the composition of different insulating materials.
According to different insulation resins used
A certain type of resin is used for the main body of the copper clad laminate, and it is customary to call this copper clad laminate a certain resin type copper clad laminate. At present, the most common main resins for copper clad laminates are: phenolic resin, epoxy resin (EP), polyimide resin (PI), polyester resin (PEr), polyphenylene ether resin (PP () or PPE), cyanide Ester resin (CE), polytetrafluoroethylene resin (PTFE), bismaleimide triazine resin (BT), etc.
According to the grade of flame retardant properties
According to the UL standard (UL, 94, UL746E, etc.) plate flammability rating, the substrate material can be divided into four categories, namely UL-94 V0 level, UL-94 V1 level, UL-94 V2 level and HB level .
According to a special performance of copper clad laminate
According to a special performance of copper clad laminates, different grades of copper clad laminates are divided, which are mainly manifested in some relatively high-grade plates.