Black Oil Spray Double Sided Circuit Board FR4 Material HASL Finishing

Double-sided black oil spray solder PCB

Double-sided PCB, also known as double-sided printed circuit board, is a printed circuit board (PCB) with two-sided circuit connections. In this kind of PCB, the electronic components and circuit layout can be arranged on both sides of the PCB respectively, and the electrical connection of the circuits on both sides is achieved through vias (Vias). This structure greatly increases the functional density of the circuit board, allowing it to implement more circuit connections in a relatively small area.

Advantages of Double-sided PCB:

• Increase the wiring space
• Improve the circuit functional density
• The cost is relatively low
• Good electrical performance
• Adapt to high integration requirements

Main Features

1.Surface Finish

• Hot Air Solder Leveling (HASL) process

• Tin-lead alloy coating for enhanced solderability and reliability

Matte surface appearance

2.Solder Mask

• Black solder mask ink

• High contrast for better visual inspection

• Provides excellent protection for copper traces

• Cost-effectiveness

3.Economical manufacturing process

• Suitable for high-volume production

• Lower material and processing costs compared to other finishes

4.Applications

• Consumer electronics (e.g., smart home devices)

Industrial instruments

• Automotive electronics

• General-purpose PCB applications

5.Limitations

• Poor surface planarity

• Not recommended for fine-pitch components

• Lead-based process requires RoHS compliance

• Lead-free options available but at higher cost

Manufacturing process:

Dongguan Xingqiang Circuit Board Co., Ltd. was established in 1995 and is a professional circuit boardfactory that manufactures single-sided and double-sided PCBs, multi-layer PCBs, and Rigid Flex PCBs.

The company has two production bases in Dongguan andJiangxi, covering an area of 205000 square meters with a comprehensive monthly production capacity of 200000 square meters. The company's products are widely used in computer peripherals, communication, power supply, medical, automotive electronics, household appliances and other fields.

Our company advocate integrity, win-win and pioneering business philosophy, and put into practice the work style of "pragmatism, hard work and responsibility" to create a good corporate environment. Based on a new management model, advanced technology and equipment and good product quality, We always adhere to the corporate spirit of customer first and people-oriented.