|
Aluminum Nitride Ceramic Substrates Properties
|
| Item No. |
AlN-140 |
AlN-170 |
AlN-180 |
AN5113 |
AN5116 |
| Purity (wt%) |
99% |
99% |
99% |
98% |
99% |
| Density (g/cm3) |
3.24 |
3.31 |
3.31 |
>3.25 |
>3.26 |
|
Thermal Conductivity (W/m. K)
|
140+/-10 |
>=170 |
180+/-10 |
100-300 |
>170 |
|
Thermal Expansion (x10-6/oC)
|
< 5.6 |
4.4 |
< 5.6 |
<4.3 |
<4.2 |
| Dielectric Strength (Kv/mm) |
>=25 |
>=15 |
>20 |
>15 |
>15 |
|
Dielectric Constant (at 1MHZ)
|
8.6 |
9 |
8.6 |
8.7 |
8.7 |
|
Loss Tangent (x104@1 MHz)
|
5 |
2 |
5 |
3-7 |
3-7 |
|
Volume Resistivity (ohm-cm)
|
>1012
|
>1014
|
>5x1012
|
>1014
|
>1014
|
|
Flexural Strength (Kgf/mm2)
|
35.7 |
>35.7 |
> 30.6 |
>25 |
>30 |
| Surface Roughness (micron) in Ra |
|
as polished: 0.05 um or 2 microinch in Ra |
as polished: 0.1 um or 4 microinch in Ra |
as fired: 0.3
as lapped: 0.075
as polished: 0.025 |
as fired: 0.3
as lapped: 0.075
as polished: 0.025 |
