After the PCBA processing process, we often see many residues on the PCBA surface. These residues not only affect the appearance of the PCBA, but most importantly, affect the quality of the PCBA board. Therefore, PCBA cleaning is very important.

Let me introduce to you the correct method of manual washing of PCBA processing.

Some small and medium-sized PCBA processing factories usually adopt the method of manual PCBA cleaning, because the cost of manual cleaning is relatively low and the cost-effectiveness is relatively high. Manual cleaning kits include cleaning cans, spray cans, brushes, IPA or VIGON EFM, gloves, deionized water, wipes, air guns, and airtight bags.

Manual cleaning steps for PCBA processing:

1. Clean the circuit board in IPA or VIGON EFM, or spray IPA and EFM on the surface of the circuit board, using about 10 ml per 4 square inches.

2. Use a wet soft short brush to wipe the circuit board continuously for about 10 seconds.

3. Rinse with deionized water, about 10ml per 4 square inches. Effectively removes potential contaminant residues.

4. Hold the edge of the circuit board and wipe off excess deionized water with a clean lint-free cloth.

5. Visually inspect the cleanliness of the circuit board.

6. If necessary, use an air gun to dry the circuit board.

7. If the circuit board or components need to be stored for a period of time before coating, please put the circuit board or components into a sealed bag containing desiccant.

When the batch of PCB circuit boards is relatively large, the disadvantages of the manual cleaning method will appear. For example, the efficiency is relatively low and the cleaning is not comprehensive and meticulous. The gaps of many electronic components cannot be cleaned in place, such as IC. There are many integrated circuit pins, and it is very close to the substrate, so there is no way for the brush to enter and clean it. Therefore, manual washing of PCBA processing has gradually begun to be replaced by automated cleaning.

PCBAMakePCBA processing factory is equipped with an automatic board washing machine, which can automatically clean the residues on the circuit board, such as flux, glue, dirt, etc., to keep it clean and improve product quality. The plate washer uses a variety of technologies, such as high-pressure water spray, vibration, ultrasonic, etc., to effectively clean the circuit board, which can quickly and effectively clean the circuit board, thereby improving production efficiency and product quality.

Our PCBA washing machine has high stability and high reliability, which can meet the requirements of mass production, and keep the circuit board clean during the manufacturing process, thereby improving product quality.

If you want to know more, you can pay attention to PCBAMake PCBA service. If you need to know more technical knowledge about PCB Prototype, SMT.