Have you ever noticed those tiny circles on PCBs and wondered why they’re there? They don’t seem to have any parts soldered onto them, and some don’t even have solder paste. Well, those small circles are called test points, and they play a crucial role in ensuring that the electronics on the PCB are working correctly during the assembly process.
For those who know about electronics, having test points on a PCB is common knowledge. However, for those with a background in mechanics or other fields, the term “test point” might be a bit confusing.