Assertion: circuit board's layer | /r/HasProperty | etched
Facets:
Source sentences:
text: Electronic components are added to the outer layers of the printed circuit board when all the layers have been etched and laminated together.
text: Pattern plating is a process that plates up copper on only the features that will remain behind after the outer layers are finally etched.
text: The printed circuit board is made up of one or more conductive layers of copper plating that is etched to form the component pads and interconnection traces and one or more layers of insulating material such as epoxy-filled fiberglass to separate the conductive copper layers and to provide the mechanical strength for the board.?