Methods of PCB fabrication
Various methods could be used for fabrication of PCBs, here we will be discussing about methods which can be easily implemented at hobby level, without involving too much of resource requirement. Some examples of these methods are as following :-
A) MANHATTAN METHOD: This is called manhattan because it looks like bunch of building standing up like Manhattan in New York. This style of construction uses small piece of copper clad( the “pads”) glued to a main copper clad circuit board (the “substrate‘’) that serve as component mounting platforms. The electronic components are then mounted and soldered onto these pads. The main “substrate” board serves as the ground plane. This technique is an easy and neat way to build a circuit. It also produces a very quiet circuit due to the solid ground plane. The nibbling tool is used to nibble out small pieces of copper clad from a larger piece. Dremel tool is also sometimes used to cut the pads out of the main board.
B) TONER TRANSFER METHOD: There are different methods to fabricate a PCB. The Toner transfer method for instance (which is explained here) is an easy, convenient and reliable method. Both single and double-sided PCBs can be fabricated using this method. As the name suggests, ‘Toner’ meaning Ink is transferred from photo-paper on which it is adsorbed to the copper clad by applying sufficient heat and pressure. Using Eagle CAD software, the schematic is designed and the printout of board layout is taken on a photo paper using a laser printer.(photo of printout on photoprinter)
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