You might wonder: why aren’t solder balls allowed to appear? The reason is simple: a PCB board without solder balls looks more aesthetically pleasing. The acceptance standard for solder balls on PCBA boards is a key criterion for electronic equipment acceptance inspection. The size of solder balls on PCBA boards in PCBA processing is subject…
Steps for manual cleaning: These are the two different methods of PCBA cleaning, and choosing the appropriate cleaning method based on the current situation is crucial. We hope this information is helpful to you.
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…
Wave soldering fixtures, used in the wave soldering process to secure and protect electronic components, are typically made of the following materials: In summary, wave soldering fixtures are made of conductive, heat-resistant, corrosion-resistant, insulating, and other auxiliary materials. The choice of materials should be based on specific requirements.
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…
