9/27/2023 0 Comments Altium designer 18 region to pad![]() Vias, on the other hand, are the means by which an electrical connection is routed between two layers. Pads can have virtually any arbitrary shape however round, rectangular, and rounded rectangular are most common. When they are surface mount, they only exist on either the top or bottom layer. When they are through hole, they are virtually always drilled completely through the board. They are a common part of component footprints and they can be through hole or surface mount. Pads are the connection point between copper on the PCB and leads on the component. So because I thought it was an interesting question, I figured it was worth posting a blog entry about it. A recent post on one of Altium's forums related to the fundamental difference between pads and vias.
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