Electroplating process

Gold contact surfaces, or "gold fingers," are commonly used on PCBs with membrane switches and in applications where PCBs are frequently installed and removed. These gold contacts, typically 30 micro-inches thick, can endure about 1,000 cycles before wearing out. The process involves electroplating a Nickel underlayer followed by 24-carat hard gold, providing mechanical support and protection against corrosion. Specific design rules must be followed for gold fingers, such as avoiding plated through holes and solder masks in the plated area, and ensuring proper panelization to facilitate manufacturing. Combined surface treatments like OSP+ENIG should be avoided in designs with gold fingers due to compatibility issues. Read More

This article discusses the challenges and measures for printed circuit boards (PCBs) in energy conservation and environmental protection. As a crucial component of electronic products, PCBs must consider energy and environmental issues in their development. The article proposes measures such as adopting digital inkjet printing and 3D printing technologies, promoting compressed air energy saving programs, improving electroplating processes, and implementing clean production to achieve energy conservation and emission reduction. Additionally, it emphasizes the importance of wastewater treatment, resource recycling, and product environmental standards. Read More