There are usually several solutions to cleaning the chips on the PCB board:
1. Mild cleaning agent: Use a mild cleaning agent specially designed for cleaning electronic equipment, such as No residual alcohol or special electronic cleaning solvent. These cleaners effectively remove dirt and grease without causing damage to the chip.
2. Jet cleaning: Use a high-pressure jet or compressed air to blow the chip surface to remove dust and particles. This method is suitable for some milder pollution situations.
3. Ultrasonic cleaning: Immerse the PCB card in a special ultrasonic cleaning machine, and use the vibration of ultrasonic waves to clean the dirt on the chip surface. Ultrasonic waves can expel impurities from the tiny gaps in the chip, ensuring thorough cleaning.
It should be noted that you should be careful when cleaning the chip and avoid using too strong cleaning agents or force to prevent damage to the chip. Before cleaning, it is best to read the relevant product instructions or consult a professional to ensure that you choose the correct cleaning method and tools. In addition, the chip should be fully dried after cleaning to ensure that no moisture or residue is left to prevent problems such as short circuits.