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
- 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
- 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)
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
- 0.005” Minimum nominal pullback
- Single Side Print
Custom criteria, in depth details and Stellar’s inspection criteria available upon request