Every assembled circuit board carries the risk of manufacturing defects. Some defects are obvious, like a component completely missing from its footprint. Others are subtle, like a hairline crack in a solder joint that might pass initial testing on...
https://www.pcb-assembly-services.com/pcb-assembly-explained/common-pcb-assembly-defects-and-how-to-spot-them-visually/
The IPC-A-610 standard is the most widely referenced inspection standard in the electronics assembly industry. Officially titled "Acceptability of Electronic Assemblies," it defines the visual acceptance criteria for electronic components mounted o...
https://www.pcb-assembly-services.com/pcb-assembly-tech-design/how-to-read-an-ipc-a-610-standard-for-electronic-assemblies/