1. What are the aliases for gilding and sinking gold?

Gold plating: hard gold, electroplated gold

Sinking gold: soft gold, transforming gold

2. The Origin of Aliases

Gold plating: By electroplating, gold particles are attached to the FPC board, which is also known as electroplated gold due to its strong adhesion. The gold fingers of memory modules are made of hard gold, which is wear-resistant. FPCs bound to them are generally also coated with gold.

Sinking gold: Through chemical reactions, gold particles crystallize and attach to the solder pads of FPC boards. Due to weak adhesion, it is also known as soft gold.

3. The influence of gold plating and deposition on surface mount

Gold plating: Before doing solder mask, after doing it, there is a possibility that the green oil cleaning may not be clean and it is not easy to tin.

Sinking gold: After making solder mask, the surface mount is easy to solder.