Thin Film Guidelines

Available Ceramic Materials

  • Al2O3
    • Contact us for a complete list of available compositions
  • AlN
    • 170W
    • 200W
    • 230W
  • BeO
    • 280W
    • 325W
  • Diamond

Ceramic Information

  • Surface Finish:  A lapped finish will have a matte look.  Polished will have a glossy look.
    • 96% Al2O3
      • Lapped: 18µ-in Nominal
      • Polished: 2µ-in Nominal
    • 99.5% Al2O3
      • Lapped: 10µ-in Nominal
      • Polished: 2µ-in Nominal
    • 99.6% Al2O3
      • Lapped: 10µ-in Nominal
      • Polished: 2µ-in Nominal
    • AlN
      • Lapped: 18µ-in Nominal
      • Polished: 2µ-in Nominal
    • BeO
      • Lapped: 25µ-in Nominal
      • Polished: 4µ-in Nominal
  • Standard Sub Sizes and Tolerance:
    • Al2O3
      • Length & Width
        • 2” Sq
        • 2.25” Sq
        • 4” Dia
        • 6” Dia
      • Thicknesses
        • 0.010” – 0.050”
    • Sapphire
      • Length & Width
        • 2.0” Sq
    • 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%

Available Metals and Standard Thicknesses

  • Ti:1000-2000Å (Adhesion)
  • NiCr:1000-2000Å (Adhesion)
  • Pt:2000-3000Å (Barrier)
  • Ni:2000-3000Å (Barrier)
  • Au: 1500-10,000Å
  • Cu: 20,000Å MIN.
  • Stellar offers custom metallization thicknesses and plating options
  • Stellar offers Physical Vapor Deposition and Sputtering options

Available Finishes

  • ENEPIG and ENIG (Electroless Nickel and Gold)
  • Electrolytic nickel and gold plating – design dependent
  • Selective Au/Sn coating
  • Laser Ablated Solder Dams

Other Available Options

  • Dicing to final size
  • Laser machine to final size
  • Laser scribe & snap to final size
  • Laser Thru-holes/metalized laser thru-holes/Laser chamfers

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

Download a copy of our Thin Film Guidelines

  Thin Film Guidelines