Zulki’s PCB Nuggets: Get a New View on X-Ray
It used to be that original equipment manufacturers (OEMs) didn’t know much about X-ray at the PCB assembly stage–they didn’t care too much about it or it just wasn’t on their priority list as a key step for achieving PCB assembly reliability. After all, X-ray is in the domain of the contract manufacturer (CM) or EMS provider. There were other things to think about at the time for OEM engineers. That was back when device packaging was larger and simpler and there was a lot of room on the board. Back then, X-ray technology effectively met PCB and package inspection requirements. So, in effect, there were no worries.