Multilayer PCB refers to a printed circuit board with more than three conductive pattern layers and insulating materials between them, and the conductive patterns are interconnected according to the requirements. Multilayer circuit board is the product of the development of electronic information technology to high speed, multi-function, large capacity, small size, thin and lightweight.
The names of circuit board are: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, heavy copper board, impedance board, PCB, ultra-thin circuit board,printed circuit board, etc.
The length of conventional PCB is generally less than 450mm. Due to the market demand, Super long size PCB is constantly extending to the high-end direction, 650mm, 800mm, 1000mm, 1200mm. Honte can even process 1650mm long Multilayer PCB, 2400mm long double-sided PCB and 3500mm long single-sided PCB.
Large size PCB super big size pcb-oil rig main board:board thickness 4.0mm, 4layer, L1-L2 blind hole, L3-L4 blind hole, 4/4/4/4oz copper, Tg170, single panel size 820*850mm. oil rig main board:board thickness 4.0mm, 4layer, L1-L2 blind hole, L3-L4 blind hole, 4/4/4/4oz copper, Tg170, single panel size 820*850mm.
Multilayer precision PCB--The manufacturing method of multilayer board is generally made by the inner layer pattern first, and then the single or double-sided substrate is made by printing and etching method, which is included in the specified interlayer, and then heated, pressurized and bonded. As for the subsequent drilling, it is the same as the plating through-hole method of double-sided board.
The 8-layer gold finger PCB is actually coated with a layer of gold on the copper clad laminate by a special process, because the gold has strong oxidation resistance and strong conductivity.
