Typical Substrate Properties
Alumina
Fused
Beryllia
Aluminum
99.50%
Quartz
Nitride
Er (10GHz)
9.8
3.78
6.6
8.7
Loss
0.0002
0.0001
0.0003
0.001
PPM / C
6.7
0.5
7.5
4.5
Cal / Cm
0.088
0.0033
0.6
0.4
Resistivity
1.00E+15
1.00E+14
Dielectric
7.9
100
14
>10
Typical Resistivities @ 20oC
Material
SYMBOL
Resistivity = p, ohms per meter
Al
2.83000E-08
Antimony
Sb
4.17000E-07
Carbon
C
3.50000E-05
Copper
Cu
1.70000E-08
Germanium
Ge
4.50000E-01
Glass
=
1.00000E+12
Gold
Au
2.40000E-08
Iron
Fe
9.80000E-07
Lead
Pb
2.20000E-07
Mica
1.00000E+14
Silicon
Si
1.30000E+04
Silver
Ag
1.60000E-08
Tungsten
W
5.20000E-08