PCB Design Glossary


Browse the glossary using this index

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F

FR-4

FR-4 is a designation for the most common dielectrics used in a printed circuit board.  It describes woven fiberglass and epoxy substrate that is Fire Resistant.

Core

The FR4 designator can be applied to a wide array of laminates.


Full-Duplex

In full-duplex communication, data is able to move bi-directionally during a data transaction.  Both nodes are capable of simultaneous transmit/receive.