As the world advances in technology, conventional sketching of traces and traditional etching methods become obsolete. The computer has taken place in almost every field of technology. But the art of making electronics boards, which would take relatively less space and holds a large number of electronic components, is made possible with computer technology. There is plenty of software available in the market that would design a circuit board. Some of them are Altium, Express PCB, CAD, and PADS. They all come in the evaluation version as well as the full paid professional version. They save the file as.
The .pcb file contains necessary information of layers and other stuff related to the printed circuit board.
The .pcb file contains information on every layer and routing on that layer. And it also contains information related to the top and bottom silkscreens and hole sizes.
For complete electronic product design, proper planning and designing are required. The digital software on the computer gives the flexibility to simulate the designed circuit. And omit the errors before it gets fabricate. But a deep understanding of the course and powerful software to make it simulation gives an error-free design.
After finalizing the design, the appropriate selection of making components, the footprints of these components are available in the software. Also, it becomes part of the .pcb file when making the final print—and finishing the wiring connection and optimal routing in the software based on the footprint of placed components on different layers and the surface of the board.
The appropriate power points and signal traces plan is generated, and digital software on the computer gives an output of designed printed circuit board. This designed circuit board is in the form of a Gerber file or .pcb file.
And the file is then printed using different techniques and place components to the surface. The placed details are passing from additional testing of quality assurance to meet the required standard of product.