1. The immersion gold circuit board is golden yellow, which is more yellow and better-looking than gold plating;
2. The immersion gold circuit board has a denser crystal structure than gold-plated and is not easily oxidized;
3. The immersion gold PCB board only has nickel gold on the pad, and will not produce gold wires to cause micro short;
4. The immersion gold PCB board only has nickel gold on the pad, and the solder mask and copper layer on the circuit are more firmly combined;
5. Immersion gold is softer than gold plating, so it is not as good as gold plating in terms of wear resistance. For gold finger boards, the effect of gold plating will be better.
6. The immersion gold PCB board only has nickel gold on the pad, and the signal transmission in the skin effect is on the copper layer and will not affect the signal; 7. The crystal structure formed by immersion gold and gold plating is different, and the immersion gold circuit board is more Gold-plated plates are easier to solder and will not cause poor soldering;
| performance |
Exterior |
Solderability |
Signal transmission |
quality |
| gold plate |
golden whitish |
Generally, there are occasional cases of poor welding |
The skin effect is not conducive to the transmission of high-frequency signals |
|
1. Gold surface is easy to oxidize |
2. It is easy to cause the gold wire to be slightly short |
3. Weak bonding force of solder mask |
| Immersion gold board |
Golden |
GOOD |
Skin effect has no effect on the signal |
|
1. Not easy to oxidize |
2. Does not produce gold wire |
3. Good adhesion to solder resist |
