Copper shorts can be identified with testing. Make sure you define test requirements in your PCB design software.
FR4 is by far the most popular set of PCB substrate materials. Here is how FR4 dielectric constant and your material properties will affect your next PCB.
For the best success when manufacturing your PCB design, you need the latest Gerber X2 file formats in the free Gerber file editor in your PCB design tools.
You can make the transition from being a hobby PCB maker to a professional designer when you use the best PCB design tools in Altium Designer.
You can prepare your design for manufacturing with PCB Cart thanks to the manufacturing and supply chain tools in Altium Designer.