Composite substrate is also called [powder board]. The most common composite substrate copper-clad laminates currently on the market include single and double sided CEM-1, CEM-3 semi glass fiber board, 22F, etc., with wood pulp fiber paper or cotton pulp fiber paper as the reinforcing material. At the same time, fiberglass cloth is used as surface reinforcement material, and the two materials are made of flame retardant epoxy resin.
Phenolic substrate is also called [flame retardant board]. The most common ones include V0 board, cardboard, FR-1, FR-2, FE-3, 94HB, XPC, etc., because its main material is wood pulp fiber paper, which has been A PCB board that is pressurized and synthesized. Its main features are low cost, low price, and relatively low density. The disadvantage is that it is not fireproof. It is mainly used in children's consumer electronics.
3. Glass fiber PCB substrate
Fiberglass board is also called [epoxy board, fiber board]. It is mainly made of epoxy resin as adhesive and fiberglass cloth as reinforcement material. PCB boards made of this kind of board have strong fire resistance, height resistance and are not affected by the environment. Small, the most commonly used substrates are Double Sided PCB and Multi Layer PCB. Conventional processes: lead free tin spray, green oil folding, 1.6 thick plate, suitable for various power boards, control boards, communications, instruments It is widely used in instrumentation, automobile and computer industries. LED board is quite special. It is a metal based copper clad laminate with good heat dissipation function. Generally, a single panel consists of a three layer structure, which are circuit layer (copper foil), insulation layer and metal base layer. For high end use, there are also double sided designs with a structure of circuit layer, insulation layer, aluminum base, insulation layer, and circuit layer. A very few applications are multi layer boards, which can be made of ordinary multi layer boards laminated with insulation layers and aluminum bases.
5. Other substrates
In addition to the three commonly seen above, there are also metal substrates and build up multilayer boards (BUM). It is worth noting that we often see the letters KB printed on the circuit board. This is the PCB of Kingboard Company. Plate abbreviations include, in addition to Kingboard, Shengyi SL, Taiyao TUC, Guoji GDM, Changchun L, Changxing EC, Hitachi H, etc.
In addition to the above types of substrates, there are also built up multi layer boards and metal substrates. Many times we will see the two English letters KB on the finished PCB. It is the abbreviation of Kingboard board. In addition to Kingboard, there are also Shengyi SL, Taiyao TUC, Guoji GDM, Changchun L, Changxing EC, Hitachi H, etc. Boards like this can guarantee the performance of the product from the source. Of course, the management of the production line and the experience of the staff are also very important.
