The high-rise plate is thicker, heavier and larger than the conventional multilayer plate. The corresponding heat capacity is also larger. When welding, more heat is needed and the welding high temperature time is longer.
After the circuit is completed, solder resistance ink is coated on the circuit as protection of the circuit. There are liquid photosensitive, heat curing and UV hardening.
Through the hole plug oil process is one of the hole treatment methods, the first is to opaque, above must have ink cover, plugging; The second is the hole can not appear yellow phenomenon, and do not touch tin.
The life and performance of circuit board machining depend on the selection of PCB board. Fiberglass FR4 is the most common material used for PCB substrates. For flexible PCBS, use Clapton or equivalent plastic. PCBS made from cheaper materials such as ep
Kingford is a PCB company engaged in the production and assembly of circuit boards. We not only sell PCBA, but also have many strategies related to PCB design and PCB proofing. Next, let me introduce you to some matters related to PCB.
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