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Definition of "Via" |
A plated-thru hole in a printed wiring board. A via may exist between one or more adjacent board layers, or through the entire board. A blind via runs vertically between the top [or bottom] side and through one or more adjacent board layers, but not through the entire board. A buried via runs between one or more adjacent internal layers, but does not run to the top or bottom layer. Also refer to Thermal Via. Related PWB Design links. / From Latin vi , ablative of via way, road, channel , Virtual Interface Architecture, Versatile Integrated Avionics, Very Innovative Architecture, / a hole in the insulator between two metal layers on a multilayer integrated circuit that is etched and filled with a conducting material so that the two metal layers are electrically connected. Via resistance is typically less than 10 ohms. |
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