During the PCBA manufacturing process, residues of solder paste and flux are inevitable. Over time, these residues can solidify, forming corrosion substances such as metal halides, which can adversely affect the stability and lifespan of the PCB. Therefore, it’s essential to thoroughly remove residual solder paste, flux, and other contaminants from the surface of PCBA…

The solder paste process plays a crucial role throughout the entire PCBA manufacturing process, ensuring reliable electrical connections between surface mount components and PCB pads while providing adequate mechanical strength. Let’s explore the solder paste process, technical requirements, and cleaning solutions.

PCBA circuit boards are widely used globally, and during the manufacturing of printed circuit boards, contaminants such as solder flux and adhesive residues, as well as dust and debris generated during production, can accumulate. If the PCB surface cannot be effectively cleaned, issues such as resistance and leakage can occur, leading to abnormalities in the…

With the widespread use of steel mesh cleaning machines, more and more people are becoming acquainted with SMT (Surface Mount Technology) steel mesh cleaning equipment. The fully pneumatic SMT steel mesh cleaning machine utilizes compressed air as the energy source, eliminating the need for electricity and any associated fire hazards. It features user-friendly design and…

There is a common misconception that cleaning circuit boards after soldering is merely for aesthetic purposes, with no other significant benefits. However, neglecting cleaning during the PCBA (Printed Circuit Board Assembly) manufacturing process can lead to various issues, causing operational costs to skyrocket due to faults, rework, or product recalls during long-term customer use. Let’s…

With the development of SMT, the trend towards miniaturization and high-density assembly of components has emerged. Consequently, SMT pick-and-place machine nozzles have become more precise and have a greater impact on assembly quality. During actual assembly processes, nozzle blockages due to solder, flux, or other contaminants can lead to component misplacement. Previous methods such as…

Liquid addition Liquid addition includes three types of actions: adding cleaning solution at the beginning of the cleaning process, replenishing during the cleaning process, and replacing the cleaning solution. Considerations during liquid addition include: Cleaning Drying The spray cleaning process generally adopts ambient temperature airflow for drying, with the drying time adjusted according to the…

PCB cleaning agents, also referred to as washing solutions, serve the same purpose of cleaning PCBAs (Printed Circuit Board Assemblies). The choice between solvent-based and water-based cleaning materials depends on various factors, with each type having its own advantages and disadvantages. Solvent-based cleaning agents used for PCBA cleaning can be categorized into hydrocarbon solvents, halogenated…

The current situation of traditional ink, adhesive, silver paste, and silicone rubber PCB cleaning present three major problems: large consumption of cleaning solution, inadequate workplace to meet environmental protection standards, and reluctance of workers to manually clean PCBs. Traditional cleaning methods for ink, adhesive, silver paste, and silicone rubber PCBs typically involve manual wiping with…