The PCB design is among the most significant design elements in the design of electronic products. In most cases, the engineer for electronics hardware design designs the circuit which will be followed by a printed circuit board specialist who will undertake the design and layout from a schematic from the PCB CAD system.
The design and layout are skills that need knowledge of not just the CAD system and design software, but also of different techniques and standards that are used to guarantee that the basic circuit blueprint will be transferred successfully to the overall PCB design and this can be manufactured in an electronic circuit manufacturing environment. To ensure that all these things are achieved, read on some of the most important tips for proper layout.
Make Nodes Accessible
Eventually, you may experience that you have to figure out why something is not properly working and you would like to measure a signal inside the printed circuit board. Before you proceed with the design, consider first the points that will be important to troubleshoot the circuit and if they are not accessible, have a test point somewhere that is connected to them. There are different forms of test points but opt for the ones that form a loop.
Space Between Each Component
It can be very tempting to immediately pack the components, then you realize that there not enough room for routing of wires. There should be space between your components so the wires can spread. For components that have more pins, there should be more space. Spacing helps facilitate auto-routing and makes soldering easier.
Components should be in the Same Orientation
Generally, components have a standard pin numbering. Pin number 1 is in the upper-left corner. Given that all components are equally oriented, mistakes will be avoided during soldering or when inspecting the components.
Print the Layout
After you have laid out all components, you can proceed to the printing of the layout. Make sure that you place every component on top of your layout paper so you can see if they match.
Exchange Wiring Directions Between Every Layer
Vertical traces should be drawn on one side and horizontal on the other. This will facilitate wiring of lines that need to cross over the other. In the case of multiple players, you can alternate between directions.
Choose the Width of Lines
There is lesser resistance with a larger width. This helps reduce the heat that is caused by dissipation. Line width should be sized in accordance with the estimated current that is flowing through them. You can also use an online calculator for your calculations.
These are just a few tips that you need to keep in mind when you are having your layout. There are more tips that you should research and apply in your work to make sure that things are done properly and the best results are achieved.