Basics of PCB Design—PCB layout
Before starting off to design your own printed circuit board, you should know the circuitry well. You have to decide for the wiring and placing vias for the components on the board. For this you need to have a PCB designing software, where you can draw the schematics of the circuitry. There are some basics of the PCB design, some of the most important are as follows.
The Making of Schematics
First of all you need to have the schematics of the circuit that you want to design. For this you can use any of the software well-known for designing of the schematics of circuits. Draw the schematics and then run the circuit simulations so that you might know whether the circuit would work or not.
Preparing the Layout
After you are done with the schematics and successful simulations, now it’s time to go for the layout. This step is converting your schematic diagram in to the PCB layout. Drawing the layout is not an easy task. You need to think well before going for placing any trace or vias. You have to keep the width of vias and traces to an optimum level to avoid any short circuit in the board. Some of the software have an option to directly convert the schematics in to the PCB layout where you can do minor changes and the PCB is ready.
Printing and Etching
Once you have designed the PCB layout then it’s time to get its print out. Remember that you have to print the layout on to special PCB paper so that the circuitry must adhere to the board. After the printout of the layout, now carefully place the paper on the board and press it with hot iron. After some time the board is ready for etching. After you dip the board in solution to remove extra copper, your PCB is ready. Drill the vias and place the components through soldering iron and test the circuit in laboratory.