On each of your boards, there are always at least several hundred solder joints, usually thousands. The board must be profiled according to the solder paste specifications, component density, number of layers, and whether the board is SMT on a single side or assembled on both sides.
These and other factors are all important considerations in determining profile parameters.
Once this is done, it’s important to measure the profile with a profiler and certify it by recording all data.
This ensures a reliable, high-quality soldering process.
If correct profiling is not performed, especially today with Lead-Free alloys, various defects can arise that compromise the board’s overall integrity.
How many times have you touched a component on your board and/or flexed it slightly, only to find that a board that initially worked… stopped working and/or vice versa?
