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Manufacturer of Printed Circuit Boards (PCB)
Prototype through Production
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Eiconnect Tolerance
Electrical Signal Layers
Nominal Minimal 
  Track to Track Spacing 0.008 0.006
  Track to Pad Spacing 0.008 0.006
  Pad to Pad Spacing 0.008 0.006
  Track Widths 0.008 0.006
  Edge Clearances 0.015 0.010
Electrical Plane Layers
Nominal Minimal 
Negative Plane Data Thermal Relief Connectors  
  Air Gap Widths 0.012 0.010
  Spoke Widths 0.012 0.010
  Expansion Size (per side) 0.015 0.013
Negative Plane Data Plane Clearances    
  Clearance Pads(per side) 0.015 0.013
  Edge Clearances 0.015 0.013
Positive Plane Data See Electrical Signal layers
See Thermal Relief Connectors
   
  Track to plane Spacing 0.012 0.010
  Pad to Plane Spacing 0.012 0.010
  Edge Clearances 0.050 0.020
Drill
Nominal Minimal
  Via Hole Sizes 0.016 0.012
  Annular Rings (per side) 0.008 0.006
  Finished Hole Size Tolerance
for Plated Thru Holes
+/- 0.003  
  Finished Hole Size Tolerance for Plated Thru Holes +/- 0.005  
Mask
Nominal Minimal
  Expansion (per side) 0.005 0.003
Silkscreen
Nominal Minimal
  Line Widths 0.010 0.008
Slots and Cutouts
Nominal Minimal
  Widths --- 0.031
Board Outline
Nominal Minimal
  Tab Route spacing Between Parts 0.100 0.031
  Routing Tolerance +/-0.005 +/-0.005
Board Thickness
Nominal Minimal
  2 Layer 0.062 0.005
  4 Layer 0.062 0.020
  6 Layer 0.062 0.031
  8 Layer 0.062 0.047
  10 Layer 0.062 0.062
Electronic Interconnect Corp. (Manufacturer of PCB) - Copyright© and Registered 2005