Factory wholesale Silica Ceramic Fiber Board - Top Suppliers China Custom Rigid Flexible Rigid-Flex Printed Circuit Boards PCB Manufacturer – Yongmingsheng

We have many excellent staff members good at marketing, QC, and dealing with kinds of troublesome problem in the production process for Top Suppliers China Shenzhen Custom Rigid Flexible Rigid-Flex Printed Circuit Boards PCB Manufacturer, The concept of our organization is “Sincerity, Speed, Provider, and Satisfaction”. We are going to follow this concept and earn more and more customers’ satisfaction.
We have many excellent staff members good at marketing, QC, and dealing with kinds of troublesome problem in the production process for China Professional Manufacturer, Pcb Board, we always keep our credit and mutual benefit to our client, insist our high quality service to moving our clients. always welcome the our friends and clients to come and visit our company and guid our business, if you are interested in our merchandise, you can also submit your purchase information online, and we are going to contact you immediately, we keep our highly sincere cooperation and wish everything in your side are all well.

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.