印刷电路板Purpose of PCBA cleaning - removal of contaminants: it removes flux residues, grease, dirt, etc. generated during the welding process and prevents these contaminants from affecting PCBA performance, such as causing short circuiting, corrosion, etc. . Improve reliability: ensure the PCBA surface is clean, enhance the connection stability between the electronic component and the circuit board, and extend the service life of the product. - easy to test: make the PCBA surface clean and tidy, facilitate the subsequent visual inspection, electrical performance testing, improve the detection accuracy