PCB assembly process steps

Surface Mount Assembly ProcessOriginally, all PCBs were assembled by hand using only a solder iron. As technology progresses, components get smaller and more difficult to assemble by hand and the amount of components that may fit on a single board increases. Thus the need for auto assembly was developed.Required ElementsThe following are the required elements for auto assembly:Gerbers in 274-X (embedded apertures) including fabrication drawing.Part centroid text file with Reference Designators, ...

PCB Assembly assembly process assembly steps Solder Paste Printing AOI

What is Automated optical inspection(AOI)

Automated optical inspection (AOI) is an automated visual inspection of printed circuit board manufacture where a camera autonomously scans the device under test for both catastrophic failure (such as missing component) and quality defects.It is commonly used in the manufacturing process because it is a non-contact test method. This guarantees the high reliability of Multi-CB multilayer circuit boards.It is especially important for the following application areas:l Line width violationsl Spaci...

Automated optical inspection AOI

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