Immersion gold costs you more than plating gold, and there are some differences between the two:

1.Color is one way to distinguish between the two immersion gold and gold plating. Gold plating will be slightly whiter thanimmersion gold.

2. Immersion gold board has better performance in solderability.
3. The surface of gold plating is easy to be oxidized,while immersion gold board will not.
4. As for the bonding force of solder paste, immersion gold is stronger than gold plating.

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