The layout of the board will contain the footprints on it, which means that the footprints themselves need to be built first. PCB footprints are the CAD models of the physical on a printed board. Industry Standards for Calculating PCB Pad Sizes With the knowledge of available online data, as well as automated tools, you’ll be able to understand how to calculate a PCB pad size for your Printed Board with enough ease and comfort to keep your Jaws from completely hanging open. While I’m sure we could talk about enough CAD, specific footprint types, or land pattern hole sizes to leave any passerby with their mouths gaping, it’s important to know, first, resources you can turn to for information on how to build your PCB footprints. With my mouth hanging wide open, I’m sure I could have been cast perfectly for any of those mouth-hanging moments. Since I hadn’t done this before, I didn’t know where to look for the information that I needed or how to go about creating the part. One of those times came to me when I first started designing printed boards and was asked to create a new PCB footprint.
I feel like I have a Spielberg moment every week these days, with new technology and unbelievable news breaking so frequently. Every mouth hung wide open until she quickly substituted the word ‘mish-mash,’ instead. The other day while teaching her third graders, my wife gave the kids a Spielberg moment when she used the word ‘amalgamation,’ in a sentence. In our family we have a phrase that we use to describe when a person is surprised, we call it a “Spielberg moment.” Think back to movies like Poltergeist, or Close Encounters, where the characters in the movie would stare with their mouths hanging open at something that was surprising, shocking, or horrifying.
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