Enig Immersion Gold process has the advantages of high flatness, uniformity, solderability and corrosion resistance, and is widely used in PCB surface treatment process of various electronic products. ENIG is also called Immersion Gold. The chemical nickel content in PCB is generally controlled at 7-9% (medium phosphorus). The chemical nickel phosphorus content is divided into low phosphorus (matt), medium phosphorus (semi gloss) and high phosphorus (bright). The higher the phosphorus content, the stronger the acid corrosion resistance. Chemical nickel is divided into chemical nickel on copper, chemical nickel on copper and chemical nickel palladium processes. Common problems of chemical nickel are “black pad” (often called black disc, the nickel layer is corroded to be gray or black, which is not conducive to solderability) or “mud crack” (fracture). The gold in enig can be divided into thin gold (replacement gold, thickness of 1-5u ″) and thick gold (red…

Keywords

Similar

OSP Antioxidant PCB Circuit Board
Gold-plated double-sided PCB board
PCB boards for industrial design
Double-sided industrial control PCB board
Double-sided gold finger circuit board
Double-sided carbon oil circuit board
Double-side Printed Circuit Board
Rigid-Flex PCB(R-FPCB) plugged with epoxy resion PCB
Multi-layer Rigid Flex Circuit Boards for Digital products
High Speed Rigid-Flex PCB(R-FPCB) for Module
8L Multilayer Rigid-Flex PCB
2Layers Rigid-Flex PCB(R-FPCB)

Union Gain Electronics Co.,LTD

Founded in 2013, UGPCB is a high-tech enterprise which provides one-stop service with PCB design, PC…

Copyrights © 2025 astszcmparts.com All Rights.Reserved .