For example, Allegro produces files with the numerical sequence of the stackup in the name and the extension '.PHO'. It is a good idea to specify which Gerber file goes with which layer. Finally, you need the drill file so the fab can drill the vias and thru-hole pads.Ĥ. You will also need the Drill Drawing Gerber layer upon which you have written all of your specifications for the board - material type, dimensions, stackup, and any other information you want used to produce your board exactly as you have designed it. You should also generate a Gerber file containing the board outline - this will be used by the fab for routing the board from their panel. You need to generate a Gerber file for each of the copper layers/planes in your board. If you are going to have an assembly house assemble your board, you will need to provide other mechanical layers to them with information that helps locate all of the components.Ģ-3. In AD, this is a defined layer by that name. Normally, you put all of the necessary mechanical information on the 'Drill Drawing'. You also need the drill file to define the location of drilled holes.ġ. To provide the rest of the information necessary to manufacture a board, you either have to create a mechanical layer containing the data, or provide a text file with the information. They contain no intelligence about the design except the exact location of lines and pads on whatever layer for which they are generated. They are used to produce plots through which photosensitized panels are exposed to light. Gerber files are also called photoplot files. The information you need to provide to a fab is the same, regardless of what EDA program you use. Based on the courses I have taken and about 12 years of experience in this field, I decided to share this information with you. You can go from beginner to advanced by watching this class and earn money this way.

Teaching PCB from beginner to advanced 2022.

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