Connections can be made on breadboard or general purpose PCB prior to making Prototype PCB Design.on successful working of connections made on a breadboard, the designer makes a schematic and based on schematic designer designs Printed circuit board layout in PCB design software. From the PCB CAD Software, Gerber 274x data is exported and supplied to PCB fab house. we at rapid circuit in India designs printed circuit boards and fabricate them as well.