Fusion Technical Support ← Knowledge Base What is Gerber file? What are the PCB panelization rules? How to generate the Gerber (manufacturing) files? What is the correct way to draw the silkscreen on the bottom side? My PCB does not require Solder Mask, what should I do? My PCB does not require Drill Holes, what should i do ? Which layer should I use in EAGLE for milling? What is the depth and width of the v-cuts/grooves? I don't want silkscreen on my PCBs, how can I proceed with a PCB Assembly order? What are the dimensions for Dielectric Separation thickness? What is the thickness of the inner copper layers? What are Blind and Buried Vias? What is the The Min Track/Spacing for 1oz./2oz./3oz. Copper weight What are Plated Half-Holes/Castellated Holes? How do I design non-plated through holes? What PCB materials are available in Seeed Fusion? What is the thickness of Fusion PCB? What PCB surface finishes are offered in Seeed Fusion? What color options are available for the solder mask/resist? What is the PCB copper weight? What is Impedance Control? PCB quantity How to generate Gerber files from PCBE How to generate Gerber and Drill files from Eagle How to generate Gerber files in Altium Designer How to generate Gerber files from CircuitMaker How to generate Gerber and drill files from KiCad How to generate Gerber files from DipTrace How to generate Gerber files from Proteus How to generate Gerber files from DesignSpark How to convert drilling layer from Gerber to Excellon format in CAM350 Recommend size for BGA Solder Mask Dam What is the difference between Fusion standard PCB and Fusion Advanced PCB? What should I do if my Gerber files are too big (over 4MB)?