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factory low price Rigid-Flex Pcb - HDI Green Soldermask flex-rigid Board – Yongmingsheng

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factory low price Rigid-Flex Pcb - HDI Green Soldermask flex-rigid Board – Yongmingsheng Detail:

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.


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 HDI Green Soldermask flex-rigid Board – Yongmingsheng detail pictures


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We thinks what buyers think, the urgency of urgency to act during the interests of a purchaser position of theory, allowing for much better high-quality, reduced processing costs, charges are more reasonable, won the new and outdated consumers the support and affirmation for factory low price Rigid-Flex Pcb - HDI Green Soldermask flex-rigid Board – Yongmingsheng , The product will supply to all over the world, such as: Pakistan , Estonia , Armenia , Our company warmly invites domestic and overseas customers to come and negotiate business with us. Allow us to join hands to create a brilliant tomorrow! We've been looking forward to cooperating with you sincerely to achieve a win-win situation. We promise to try our best to deliver you with high quality and efficient services.
  • In China, we have purchased many times, this time is the most successful and most satisfactory, a sincere and realiable Chinese manufacturer!
    5 Stars By Maud from Johor - 2018.09.29 13:24
    It is a very good, very rare business partners, looking forward to the next more perfect cooperation!
    5 Stars By Doreen from Kenya - 2017.09.29 11:19
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