Valley Services Electronics

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pcb footprint creation guidelines

The SMT PCB Assembly Process: What Engineers Should Know

Your contract manufacturer also must be fully prepared when they manufacture your printed circuit boards with surface mount components. Of course, there’s a lot more to this preparation than just picking up a few extra paint brushes. The raw boards must be prepared for assembly, and the automated placement machines must be set up with parts before the board can go through the production line. Let’s take a moment to look more closely at the SMT PCB assembly process and how that might affect some of your PCB design decisions.

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component orientation on pcb

PCB Thermal Relief Guidelines for Manufacturing

If those pins are the leads of a thru-hole device, then soldering or un-soldering those pins can be very difficult with all of the metal in the planes they connect to. This is where the thermal relief comes in, and there are some PCB thermal relief guidelines that you should know more about.

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pcb hole size tolerance

PCB Hole Size Tolerance and Its Impact on Assembly

The hole sizes assigned to a PCB will have tolerances attached to them to allow for variations in the lead size of the components to be inserted, as well as for the different conditions the PCB will encounter during manufacturing. Here are some of those factors to consider as you assign PCB hole size tolerances to your next project.

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