How can manufacturer test the value of each individual component when they are already placed on the board with soldering paste?

During auditing PCBA suppliers, an automatic testing process leave great impression in my mind. What’s that? And does it damage the PCBA because its probes seems contact the board closely?

Fly probe test is a better testing approach than the manual test. When inspecting the PCBA circuit board, the probe head contacts the circuit board and electronic components quickly and frequently.

Because the test probe is in physical contact with the solder on the pass hole and the test pad, small pits may be left in the solder. For some OEM customers, these small pits may be considered as bad appearance.

However, some high-end flying needle test equipment have developed new technology, named soft landing technology. It can avoid leaving obvious pits on the solder and even can be tested on the ceramic sheet.

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Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.
Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

What Others Are Asking

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Has anyone had good/bad experiences with particular PCB-mount thermocouples?

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I am designing a system on megahertz frequency bands (~ 400-1000MHz.) This device is connected to a variable antenna which does not necessarily stay in match with the circuit so there will be some reflection of the power back to the circuit. The feeding power would not be more than 0dBm at maximum. Do I ever need to take care of the reflections at all?

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