Factory making Fingerprint Rigid-Flex Pcb - China Manufacturer for 1.6MM 6L HDI printed circuit board pcb pcba Electronic PCB for 5G – Yongmingsheng

We pursue the management tenet of “Quality is top-quality, Company is supreme, Status is first”, and will sincerely create and share success with all shoppers for China Manufacturer for 1.6MM 6L HDI printed circuit board pcb pcba Electronic PCB for 5G, Our main objectives are to provide our customers worldwide with good quality, competitive price, satisfied delivery and excellent services.
We pursue the management tenet of “Quality is top-quality, Company is supreme, Status is first”, and will sincerely create and share success with all shoppers for , We follow up the career and aspiration of our elder generation, and we are eager to open up a new prospect in this field, We insist on “Integrity, Profession, Win-win Cooperation”, because we have now a strong backup, that are excellent partners with advanced manufacturing lines, abundant technical strength, standard inspection system and good production capacity.

Immersion Gold

Immersion Gold is the method of chemical deposition, through the chemical REDOX reaction to generate a layer of coating which is generally thick, is a chemical nickel gold layer deposition method, can achieve a thicker gold layer.

The process of Immersion Gold on the surface of printed circuit is characterized by stable color, good brightness, smooth coating and good weld ability. Basically, it can be divided into four stages: pre-treatment (oil removal, micro-corrosion, activation and leaching), nickel precipitation, gold precipitation, post-treatment (waste gold water washing,DI washing, drying), gold precipitation thickness between 0.025-0.1um.

Gold used in the surface treatment of circuit boards, because of its strong electrical conductivity, good oxidation resistance, long life, general applications such as keypad, gold finger board.