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What Is Multi-layer Printed Circuit Board?

May 08, 2017

More than three layer Printed Circuit Board is multi layer PCB board, the traditional double panel for the assembly between the parts of the intensive assembly, in the limited board can not place too many components and the derived from a large number of lines, there are multi-layer PCB development. Plus the Federal Communications Commission announced that since October 1984, all listed electrical products related to telecom operators, or have participated in the network connection, must be ground to eliminate the impact of interference. But the Industrial PCB area is not enough, so pcb pay-out will be ground and voltage two functions of the copper into the inner layer, resulting in a large number of four-layer PCB board instant rise, but also extends the requirements of impedance control. 

Industrial PCB

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