Thick Film Guidelines

Available Ceramic Materials

  • Al2O3
    • 96%
    • 99.5%
    • 99.6%
  • AlN
    • 170W
    • 200W
  • BeO
    • 280W
    • 325W
  • Diamond

Ceramic Information

  • Surface Finish:  A lapped finish will have a matte look.
    • 96% Al2O3
      • Lapped: 18µ-in Nominal
    • 99.5% Al2O3
      • Lapped: 10µ-in Nominal
    • 99.6% Al2O3
      • Lapped: 10µ-in Nominal
    • AlN
      • Lapped: 18µ-in Nominal
    • BeO
      • Lapped: 25µ-in Nominal
  • Standard Sub Sizes and Tolerance:
    • Al2O3
      • Length & Width
        • 2” Sq
        • 2.25” Sq
        • 4” Dia
        • 6” Dia
      • Thicknesses
        • 0.010” – 0.050”
    • AlN
      • Length & Width
        • 2” Sq
        • 2.25” Sq
        • 3.0” Sq
      • Thicknesses
        • 0.010” – 0.050”
    • BeO
      • Length & Width
        • 2.06” Sq
        • 2.3” x 2.9”
        • 3.7” Sq
      • Thicknesses
        • 0.010” – 0.050”
  • Stellar offers finished parts at custom sizes and thicknesses
    • Finished Part Length & Width Tolerance (Dicing)
      • Standard: ±0.002”
      • Special: ±0.001”
    • Thickness Tolerance
      • Standard: ±0.001”
      • Special: ±0.0005”
      • As Fired: ±10%

Other Available Options

  • Final Size can be achieved by dicing, laser machine and laser scribe & snap
  • Metalized Thru-Holes Available – Contact us for details

Available Pastes

  • Conductors
    • Au
    • Pt/Au
    • Pd/Ag
    • Ag
    • Cu
  • Dielectric
  • Solder Masking
  • Solder Paste
    • PB/Sn
  • Brazing

Minimum Trace/Space Width & Diameter

  • Au, Pd/Ag, Ag and Cu
    • 0.005” MIN space and trace & 0.008” Dia. MIN
  • Pt/Au
    • 0.006” MIN space and trace & 0.008” Dia. MIN
  • Dielectric
    • 0.010” MIN space and trace & 0.010” Dia. MIN
    • Special: Contact us
  • Solder Mask
    • 0.010” space and trace & 0.020” Dia. MIN
    • Special: Contact us
  • Solder Paste
    • 0.020” space and trace & 0.020” Dia. MIN
    • Special: Contact us

Printed Feature Size Tolerances & Standard Printed Pullback Requirements

  • Conductors
    • ±0.003” on spaces, traces and metal pullbacks from finished part edge
  • Solder Mask/Dielectric/Solder Paste
    • ±0.010” on space and trace
    • Special: Contact us
  • Printed Pullback Requirements
    • Single Side Print
      • 0.002” Minimum nominal pullback
    • Multi Sided Print
      • 0.003” Minimum nominal pullback
    • Away from Pre-Laser and Post Laser Work
      • 0.005” Minimum nominal pullback

Custom criteria, in depth details and Stellar’s inspection criteria available upon request

Download a copy of our Thick Film Guidelines

  Thick Film Guidelines