Seeed Fusion PCB Specification – PCB DFM Part 2

Seeed Fusion PCB Specification

2.1 PCB Gerber File

The Gerber format is an open 2D binary vector image file format. It is the standard file used by printed circuit board (PCB) industry software to describe the printed circuit board images: copper layers, solder mask, legend, etc.Gerber files should be inside a .rar archive with standard file extensions:

Notes:1. Gerber file must be the RS-274x format.

  1. Drill file(pcbname.TXT) should be Excellon format.
  2. Gerber file and Drill file(pcb name.TXT) must be put in the same file.
  3. Board outline is must
Extension Layer
pcbname.GTL Top Copper
pcbname.GTS Top Soldermask
pcbname.GTO Top Silkscreen
pcbname.GBL Bottom copper
pcbname.GBS Bottom Soldermask:
pcbname.GBO Bottom Silkscreen
pcbname.TXT Drills
pcbname.GML/GKO Board Outline
pcbname.GL2 Inner Layer2( for ≥4 layer)
pcbname.GL3 Inner Layer3( for ≥4 layer)


2.2 PCB Specification for FR4-TG130

dfm 1





More Chapters:

1. Brief Introduction
3. Panelization and Bridge Design
4. Component Layout Considerations
5. PCB Hole design
6. Solder Mask Design
7. Copper Trace Design
8. Silkscreen Design
9. PCB Lamination Structure
10. PCB Dimensions Specification
11. Fiducial Mark Design
12. Surface Treatment
13. Files for Manufacture Requirements
14. Appendix 

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