Various Info about using OSHPark for Board Fabrication

Four Layer Details

Four Layer Stackup

Impedance Constraints

• Single-ended 50Ω
  • Trace width = 0.381mm (15 mils)
• Differential 100Ω
  • Trace width = 0.175mm (6.9 mils)
  • Trace Spacing = 0.305 (12 mils)