1. The sunken gold plate has bright colors, good color, and a beautiful appearance when sold.

2. The crystal structure formed by immersion gold is easier to weld than other surface treatments, and can have better performance to ensure quality.

3. Due to the presence of nickel gold only on the solder pads, the sinking gold plate will not affect the signal, as the signal transmission in the skin effect occurs in the copper layer.

4. Gold has relatively stable metallic properties, a denser crystal structure, and is less prone to oxidation reactions.

5. Due to the presence of nickel gold only on the solder pads of the immersion gold plate, the bonding between the solder mask and the copper layer on the circuit is more secure and less likely to cause micro short circuits.

6. The engineering compensation will not affect the spacing.

7. The stress of the sinking gold plate is easier to control.

PCB board layers: 4L

PCB board material: FR4

PCB board thickness: 1mm

Copper thickness: 1Oz

Character: White

Surface treatment: immersion gold

Minimum aperture: 0.25mm

Solder mask type: Blue oil

Delivery deadline: Samples can be sent out within 12 hours at the fastest, and shipments can be made within 3-5 days

Features: Impedance immersion gold plate