Before popularizing electroplating and resin plugging, PCB processing mostly relied on green oil plugging. However, problems such as curing shrinkage and air blowing in the air occurred frequently, making it difficult to meet high fullness requirements. The emergence of resin plugging and electroplating plugging technologies solves these problems with high-precision filling and excellent conductive properties respectively. It has become a key technology for modern PCB processing.

Resin plug holes 

It pays more attention to moisture resistance, chemical protection and mechanical support.

Filling resin after drilling holes on the circuit board can effectively increase product wiring density and enhance product reliability. It is often used in high-density, high-performance PCBs to enhance circuit stability.

1. Improve wiring density: By designing and arranging chip components above the via holes, and placing the via holes directly under the BGA solder joints, the wiring density of the circuit board can be effectively increased.

2. Enhance reliability: It can eliminate impurities from entering the via holes, or avoid chemical corrosion and moisture oxidation of copper holes, improving the reliability of the product.

3. Improve heat dissipation performance: The solder pads are often equipped with via holes for heat dissipation. In order to prevent solder from flowing out, the via holes are plugged with resin, which ensures the welding quality and helps increase the product's service life.

Plating plug holes 

It pays more attention to conductive properties, anti-oxidation properties and heat dissipation properties.

The holes are filled with metal through electroplating technology to provide excellent conductivity and oxidation resistance, improve heat dissipation performance, and are suitable for occasions with high precision connections and long-term reliability requirements.

1. Electrical conductivity: The metal layer after electroplating has good electrical conductivity, which can ensure unobstructed signal transmission on the circuit board.

2. Anti-oxidation performance: The electroplating layer can prevent metal oxidation and reduce the risk of electrical failure caused by oxidation.

3. Heat dissipation performance: The metal layer in the electroplated plug hole technology has good thermal conductivity, which can help the heat on the circuit board to dissipate quickly, reduce the operating temperature of the components, and improve the stability and reliability of the product.

How to Choose

1. Performance requirements considerations: 1. If you need to protect vias from moisture and corrosion, increase product wiring density, and require patch holes in the disk, it is recommended to choose resin-plugged holes.

2. If you have high requirements for electrical conductivity, oxidation resistance and heat dissipation performance, and require precise connections, it is recommended to choose electroplated plug holes.

2. Cost-benefit considerations:

1. The resin plugging process is relatively simple and the material cost is relatively low.

2. Plated plug holes may be more cost-effective in the long run.

3. Comprehensive application considerations: 1. Comprehensive consideration of factors such as circuit board design requirements, actual use environment, and production costs.