allegro Gerber Operation Process#
- Add OUTLINE to BOTTOM and TOP layers
- Add Silkscreen folder
You can copy the first two layers and rename them
Add Silkscreen
Add Package Silkscreen
Add Reference Silkscreen
The top layer silkscreen is the same
- Add Solder Mask folder
The solder mask layer is used for creating PCB openings, areas with solder mask do not have solder mask
Add Solder Mask under Board
Add Solder Mask for Packages
Add Solder Mask for Pin Pads
The top layer is the same
- Add Stencil folder
The stencil layer is mainly used for applying solder paste, send this file to the assembly factory
Add Stencil for Pin Pads
Add Stencil for Package Geometry
The top layer is the same
- Add Drill folder
The Drill folder is mainly used to place reference information, such as the final drilling table or dimension annotations, or other text explanations, such as the designer, design time, for reference by the manufacturer
Add SubClass where dimension annotations are located
Add SubClass where drill symbols are located
Finally, we can create two additional layers for displaying pin pads and silkscreen during layout
This way, when we use these two layers during layout, we can clearly see the pin pads and silkscreen of the components
However, it is important to note that when generating Gerber files, these two additional layers are not required and should not be provided to the PCB manufacturer.