The ultrasonic cleaner has an extremely powerful cleaning function. Meanwhile, ultrasonic waves can also be used to clean circuit boards with complex structures. The circuit boards cleaned by the ultrasonic cleaner are as shiny as new. Based on the principle of ultrasonic waves, electrical energy is converted into mechanical vibration to generate high-pressure bubbles, and the burst force of the bubbles is used to impact the circuit boards. So how do we use an ultrasonic cleaner to clean circuit boards? What should be noted? When cleaning circuit boards, pay attention to the following factors of the ultrasonic cleaner: 1. The power and volume of the appropriate ultrasonic cleaning instrument should be selected correctly. During the cleaning process, do not set the ultrasonic power too high. Generally, the power is directly proportional to the volume of the container and the amount of circuit boards to be cleaned. The size of the ultrasonic wave should be determined based on the amount of circuit boards to be cleaned. Generally, it is only suitable for large quantities of circuit boards. 3. Stacking Method of Ultrasonic Cleaner: When cleaning circuit boards, be careful not to stack them randomly. They should be neatly placed in the tank. Random stacking will affect the cleaning effect. 2. Solution Selection for Ultrasonic Cleaning Equipment: Generally, the solutions used for cleaning circuit boards can be used. (Note: The solvents used should be organic solvents or special cleaning agents for circuit boards. Anhydrous ethanol (anhydrous alcohol) should not be used, otherwise the circuit boards will turn white, commonly known as white spots.)