Handling the PCB Cleaning Problem

Cleaning a PCB i.e. printed circuit board after the soldering process typically produces a board that shines and looks ready to proceed. The areas that are not clearly visible contain details that could ruin this sparkling clean picture. It’s not enough just to put the boards through a wash cycle. It takes a particular combination of chemicals, temperature, washes cycles, and timing to get the boards clean. Companies have begun to research these issues and some have funded significant resources to finding the best results. In many cases, it was discovered that a combination of comparatively minor points, when combined, pointed to processes that solely did not work as well in today’s manufacturing conditions, though their performance in times past was satisfactory. Minor changes in component packaging layout, materials, CAD/CAM software, board fabrication, and chemicals combined to slowly change the robustness of the manufacturing methods. Even the most beneficial intentions have often unconsciously created the potential for defects to occur in ways not earlier possible. Through a complete evaluation of all materials and steps in the manufacturing process, root causes of potential obstacles can be discovered. Once the problem areas are recognized well, it is easier to find solutions. Emble PCB is top-rated in the list of electronics manufacturing companies in Noida that provide perfect PCB cleaning solution.

Loaded with this information, one electronics manufacturing services group thought to see if it could improve board cleanliness to reduce machine failures and breakdowns. New devices and supporting subsystems were ordered and installed. Test and evaluation procedures were formed and implemented to verify the effectiveness of every process. All boards were routinely run through the system both before and after the assemblage process to ensure that the soldering process was not compromised by any fouls from the board fabrication process and that the boards were perfectly clean of any remaining chemicals from soldering. 

The cleaning process was created to be completely peaked.  Filters caught the solids while powerful blowers guaranteed that harsh chemicals didn’t migrate past the holding tank. Clear windows on the devices enabled operators to monitor the whole process. A refractometer checked the stability of the mix in the tank to see that it was not negotiated. The released liquid was completely environment-friendly.

Processes were thoroughly tested, estimated, apprised, and ultimately validated as a stable process. Objective tests showed that boards that went through this washing process tested almost 75 percent cleaner than the acceptable range specified by IPC as its highest level of clean. Besides, lab analysis for ion impurity found zero levels of sodium chloride ion contamination on the assembled boards.

This level of cleansing reduces failures caused by board contamination. Products are less responsive to corrosion-induced failures, thus reducing the need for maintenance or servicing. Many PCB assembly companies in Noida are working to make the PCB cleaning advanced. Also, the cost savings to companies, peculiarly those with soldiery, aerospace, and medical device applications, are substantial. When we’re looking at the devices now being made for the medical device industry, including all the wireless and implantable designs, it is time to take a new look at cleanliness norms and the manufacturing processes used to ensure that these devices do not fail.