Standard Substrate Types and Specifications

Substrate Types	“A” Surface (CLA)	“B” Surface (CLA)
Asfired Alumina (Al2O3) 99.6%	< 3µ" (76nm)	< 4µ" (100nm)
Polished Alumina Al2O3) 99.6%	< 1.0µ" (25nm)	< 1.0µ" (25nm)
Aluminum Nitride (AlN)	< 4.0µ" (100nm)	< 4.0µ" (100nm)
Beryllium Oxide (BeO)	< 4.0µ" (100nm)	< 4.0µ" (100nm)
Fused Silica, Quartz (SiO2)	60/40 optical polish	60/40 optical polish
Sapphire (a/c plane-Al2O3)	< 1.0µ" (25nm)	< 1.0µ" (25nm)
Ferrites and Garnets	< 16.0µ" (406nm)	< 16.0µ" (406nm)
Polished Titanates	< 4µ" (100nm)	< 4µ" (100nm)

Material Thicknesses and Tolerances available and in stock.

Other materials and thicknesses are available upon request.
Please contact our sales department for more information.

Asfired Alumina (AL2O3) 99.6%
0.005" (0.127mm) ± 0.0005" (0.0127mm)
0.010" (0.254mm) ± 0.001" ( 0.0254mm)
0.015" (0.381mm) ± 0.001" ( 0.0254mm)
0.020" (0.508mm) ± 0.001" ( 0.0254mm)
0.025" (0.635mm) ± 0.001" ( 0.0254mm)
0.030" (0.762mm) ± 0.002" ( 0.0508mm)
0.040" (1.016mm) ± 0.002" ( 0.0508mm)
0.050" (1.270mm) ± 0.003" ( 0.0762mm)
0.300" (7.620mm) ± 0.005" ( 0.127mm)

Polished Alumina (AL2O3) 99.6%
0.003" (0.076mm) ± 0.0005" (0.0127mm)
0.004" (0.101mm) ± 0.0005" (0.0127mm)
0.005" (0.127mm) ± 0.0005" (0.0127mm)
0.006" (0.152mm) ± 0.0005" (0.0127mm)
0.007" (0.178mm) ± 0.0005" (0.0127mm)
0.010" (0.254mm) ± 0.0005" (0.0127mm)
0.015" (0.381mm) ± 0.0005" (0.0127mm)
0.020" (0.508mm) ± 0.0005" (0.0127mm)
0.025" (0.635mm) ± 0.0005" (0.0127mm)
0.030" (0.762mm) ± 0.0005" (0.0127mm)
0.031" (0.787mm) ± 0.0005" (0.0127mm)
0.035" (0.889mm) ± 0.0005" (0.0127mm)
0.040" (1.016mm) ± 0.0005" (0.0127mm)
0.045" (1.143mm) ± 0.0005" (0.0127mm)
0.050" (1.270mm) ± 0.0005" (0.0127mm)

Sapphire (a/c plane-AL2O3)
0.005" (0.127mm) ± 0.0005" (0.0127mm)
0.010" (0.254mm) ± 0.0005" (0.0127mm)
0.015" (0.381mm) ± 0.0005" (0.0127mm)
0.020" (0.508mm) ± 0.0005" (0.0127mm)
0.025" (0.635mm) ± 0.0005" (0.0127mm)

Beryllium Oxide (BeO)
0.005" (0.127mm) ± 0.0005" (0.0127mm)
0.010" (0.254mm) ± 0.0005" (0.0127mm)
0.015" (0.381mm) ± 0.0005" (0.0127mm)
0.020" (0.508mm) ± 0.0005" (0.0127mm)
0.025" (0.635mm) ± 0.0005" (0.0127mm)
0.030" (0.762mm) ± 0.0005" (0.0127mm)
0.085" (2.159mm) ± 0.0005" (0.0127mm)
0.125" (3.175mm) ± 0.0005" (0.0127mm)

Fused Silica, Quartz (SiO2)
0.003" (0.076mm) ± 0.0005" (0.0127mm)
0.004" (0.101mm) ± 0.0005" (0.0127mm)
0.005" (0.127mm) ± 0.0005" (0.0127mm)
0.007" (0.178mm) ± 0.0005" (0.0127mm)
0.010" (0.254mm) ± 0.0005" (0.0127mm)
0.015" (0.381mm) ± 0.0005" (0.0127mm)
0.020" (0.508mm) ± 0.0005" (0.0127mm)
0.025" (0.635mm) ± 0.0005" (0.0127mm)

Ferrites and Garnets
0.010" (0.254mm) ± 0.001" ( 0.0254mm)
0.015" (0.381mm) ± 0.001" ( 0.0254mm)
0.020" (0.508mm) ± 0.001" ( 0.0254mm)
0.025" (0.635mm) ± 0.001" ( 0.0254mm)

Polished Titanates Dielectrics from 20–110
0.010" (0.254mm) ± 0.0005" (0.0127mm)
0.015" (0.0381mm) ± 0.0005" (0.0127mm)
0.020" (0.508mm) ± 0.0005" (0.0127mm)
0.025" (0.635mm) ± 0.0005" (0.0127mm)

Aluminum Nitride (AlN)
0.005" (0.127mm) ± 0.0005" (0.0127mm)
0.010" (0.254mm) ± 0.0005" (0.0127mm)
0.0118" (0.300mm) ± 0.0005" (0.0127mm)
0.015" (0.381mm) ± 0.0005" (0.0127mm)
0.020" (0.508mm) ± 0.0005" (0.0127mm)
0.025" (0.635mm) ± 0.0005" (0.0127mm)
0.030" (0.762mm) ± 0.0005" (0.0127mm)
0.031" (0.787mm) ± 0.0005" (0.0127mm)
0.035" (0.889mm) ± 0.0005" (0.0127mm)
0.040" (1.016mm) ± 0.0005" (0.0127mm)
0.0468" (1.1887mm) ± 0.0005" (0.0127mm)
0.047" (1.1938mm) ± 0.0005" (0.0127mm)
0.0472" (1.1988mm) ± 0.0005" (0.0127mm)
0.0492" (1.25mm) ± 0.0005" (0.0127mm)
0.053" (1.3462mm) ± 0.0005" (0.0127mm)
0.0571" (1.458mm) ± 0.0005" (0.0127mm)
0.058" (1.4732mm) ± 0.0005" (0.0127mm)
0.0581" (1.4757mm) ± 0.0005" (0.0127mm)
0.060" (1.524mm) ± 0.0005" (0.0127mm)
0.065" (1.651mm) ± 0.0005" (0.0127mm)
0.069" (1.7526mm) ± 0.0005" (0.0127mm)
0.080" (2.032mm) ± 0.0005" (0.0127mm)
0.084" (2.1336mm) ± 0.0005" (0.0127mm)
0.085" (2.159mm) ± 0.0005" (0.0127mm)
0.090" (2.286mm) ± 0.0005" (0.0127mm)