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
- 96% Al2O3
- Standard Sub Sizes and Tolerance:
- Al2O3
- Length & Width
- 2” Sq
- 2.25” Sq
- 4” Dia
- 6” Dia
- Thicknesses
- 0.010” – 0.050”
- Length & Width
- Sapphire
- Length & Width
- 2.0” Sq
- Length & Width
- AlN
- Length & Width
- 2” Sq
- 2.25” Sq
- 3.0” Sq
- Thicknesses
- 0.010” – 0.050”
- Length & Width
- BeO
- Length & Width
- 2.06” Sq
- 2.3” x 2.9”
- 3.7” Sq
- Thicknesses
- 0.010” – 0.050”
- Length & Width
- Al2O3
- 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%
- Finished Part Length & Width Tolerance (Dicing)
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