《J-STD-002E》
《GJB 548C-2021》
Customers provide or suggest using standards

《J-STD-002E》
《GJB 548C-2021》
Customers provide or suggest using standards
Homework preparation ⇒ Welding groove heating ⇒ Adjusting the immersion angle ⇒ Setting the immersion frequency ⇒ Observation record ⇒ Result evaluation
Testing requirements:
The sample that has completed the solderability test should be observed under a binocular microscope with a magnification of at least 10 times to observe the solder adhesion of the pin solder ends. There should be no cracking, deformation, discoloration, or other phenomena. If the solder adhesion area of the solder ends reaches 95% or more and the solder area on the solder pads reaches 80% or more, it can be judged as qualified.
Key testing requirements: Pin soldering area of over 95%, solder pad soldering area of over 80%