Engineering/ CAM
Engineering/ CAM

Engineering/ CAM

Engineering

  • Design Support
  • DFM (Class 2 and Class 3)
  • Technical Presentations for General PCB Manufacturing or Specific Subject or Application -ITL Engineering Support Staff are available to work directly wtih your NPI or Design Team.  We will provide guidance in material selection, fabrication options, impedance model and optimum design practices for effective cost control.

CAM

  • Polar Si8000 Impedance Calculator
  • Orbotech/Frontline Genesis 2000 CAM Stations
  • ITL Bostomatic CNC Format Conversion Software
  • ITL DNC System Management Software
  • Excellon DNC Interfaces
  • Netlist Extractor
  • ATG DPS Flying Probe Programmer
  • ECT MagicSuite ET Fixture Design Software

Click Here for Design Guidelines.

The following represents general process allowance which take into account economic factors and best industry practices:
Conductor Width:

  • +.001 for 1/2 oz Copper
  • +.002 for 1 oz Copper
  • .004 for 2 oz Copper
  • ie:  .005″ Trace should be etch compensated to .006″ for 1/2 oz copper

Conductor Spacing:

  • .0035 for 1/2 oz Copper
  • .006 for 1 oz Copper
  • .008 for 2 oz Copper

Pad / Land Diameter: (Ref IPC-2221)

  • Pmin = a + 2b +c
    where
    P = Pad
    a = Max Hole Diameter
    b=Min Annular Ring
    c= Process Allowances
  • Preferred  .016
  • Standard  .010
  • Reduced Producability  .008

Plane Clearance / Anti-Pad:

  • Preferred:  Drill plus .018 minimum
  • Reduced Producibility:  Drill plus .016
Soldermask:

  • Apperture Size =
    Copper Feature + .010 Preferred
    or
    .006 Reduced Producibility
  • Adjacent Trace of Plane clearance
    -Preferred .010″
  • This insures soldermask will cover intended features and provide
    sufficent clearance to eliminate the possibility of soldermask going
    over solderable areas
  • Reduced Producibility .006″
  • Minimum Feature / Dam  .0025

Silkscreen:

  • Minimum Character Height .035
  • Minimum Character Thickness  .005

Character to Feature Clearance .010 minimum