OEM/ODM Supplier Huge Size Pcb,Big Size Pcb - 12Layer Immersion Gold HDI | YMS PCB – Yongmingsheng

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Using a total scientific good quality management process, superior high quality and excellent faith, we get great name and occupied this field for 94v0 Bare Printed Circuit Board, Led Tube Lighting Metal Core Pcb, Bendable Aluminum Pcb, We fully welcome shoppers from all around the world to ascertain stable and mutually effective enterprise interactions, to have a dazzling long run jointly.

OEM/ODM Supplier Huge Size Pcb,Big Size Pcb - 12Layer Immersion Gold HDI | YMS PCB – Yongmingsheng Detail:

HDI basic production process:

A、Brown multilayer circuit board to form Browning film on the surface of copper foil layer, and laser drilling on the surface of copper foil to form laser blind hole

B、 drill the multi-layer circuit board to form a mechanical drill hole

C、 The multi-layer circuit board is coated with copper to form a copper layer in the laser blind hole mechanical drilling, and then the multi-layer circuit board is electroplated to thicken the copper layer in the hole

D、The above multilayer circuit board is made of outer graphics, and the surface treatment of etched screen print resistance welding on the outer layer of graphics electroplating is carried out to obtain the finished HDI board

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2layer Fpc