| 释义 |
printed circuit An electrical circuit, generally of copper foil, printed on a substrate dielectric material. A sheet of copper foil is adhered to the substrate, and the unwanted portions of the foil are then removed by a process of silk screen printing, photoengraving, or mechanical milling.The remaining traces of copper foil form the circuit that connects components such as silicon chips mounted on the board. See also printed circuit board. |