User blogs

The surface of the circuit board usually has three colors: gold, silver, and light red. Gold is the most expensive, silver is cheaper, and light red is the cheapest. So, how to identify the PCB surface treatment process by color? Next, Shenzhen PCB board manufacturing pcb manufacturer will introduce it to you. Identify PCB surface treatment process by color 1.gold Gold is real gold. Although it is only a thin layer, it accounts for nearly 10% of the cost of the circuit board. The purpose of using gold is firstly to facilitate we... more