About PCB fAbricAtion

The passive lumped circuit elements (i.e. resistors, capacitors and inductors) and the
active devices (i.e. diodes, transistors, FETs, UJTs, ICs etc.) are assembled on an insulated
board commonly known as printed circuit board or PCB. This board has a thin layer of copper
(copper cladding) on one side. Sometimes copper cladding on both sides is also used. By
having copper removed from the undesired areas it is possible to connect the different legs of
the devices and elements in a compact manner. When properly soldered with the legs of these
devices and circuit elements the copper cladding gives support to this components. Here the
process of fabricating a PCB board (basically removing copper from the undesired areas
according to a predetermined plan) is discussed briefly.


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