| Material
name |
Alumina(press
product) |
Alumina(tape
product) |
Aluminum
nitride |
| Part
number |
A-380 |
NA-
304B |
A-396 |
NAT-
301 |
NAT-
301B |
NAT-
302B |
NAT-
311B |
AT-396 |
NAT-
306 |
AT-
3995-1 |
NAL-01/B |
| Main
application |
Abrasion resistant product |
Glass seal PKG |
Thick film substrate |
Co-Fired PKG substrate |
Co-Fired PKG substrate |
Co-
Fired
PKGE |
Co-
Fired
PKGE |
Thick film substrate |
Thick film substrate |
Thin
film substrate |
Co-Fired
PKGEsubstrate,
Glass seal
PKG |
| Alumina
content [%] |
80 |
90min. |
96 |
90min. |
90min. |
90min. |
90min. |
96 |
76 |
99.5 |
| |
| Color |
White |
Dark brown |
White |
White |
Black |
Dark brown |
Dark brown |
White |
Light yellow |
White |
White/Black |
| Water
absorption
[%] |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
Apparent
density
rA[g/cm3] |
3.37 |
3.80 |
3.75 |
3.65 |
3.65 |
3.65 |
.3.70 |
3.75 |
4.24 |
3.88 |
3.32 |
Surface
roughness
Ra[mmRa] |
0.7 |
0.6 |
0.6 |
0.4 |
0.4 |
0.4 |
0.35 |
0.5 |
0.2 |
0.2 |
0.3 |
Bending
strength
δb3[N/mm3]=[Mpa]
<kg/cm2> |
260
<2,700> |
290
<3,000> |
310
<3,200> |
300
<3,100> |
300
<3,100> |
300
<3,100> |
300
<3,100> |
320
<3,300> |
520
<5,300> |
390
<4,000> |
300
<3,100> |
| Linear
thermal expansion
coefficient |
α40°300ºC
[10-6/K] |
6.5 |
6.8 |
6.7 |
6.6 |
6.6 |
6.7 |
6.6 |
6.7 |
7.0 |
6.9 |
4.4 |
α40°500ºC
[10-6/K] |
7.0 |
7.3 |
7.3 |
7.2 |
7.2 |
7.3 |
7.3 |
7.3 |
7.1 |
7.3 |
4.8 |
α40°800ºC
[10-6/K] |
7.5 |
7.9 |
7.8 |
7.8 |
7.8 |
7.9 |
7.8 |
7.8 |
7.5 |
7.8 |
5.2 |
Specific
heat capacity
Cp25ºC[J/(kg„K)] |
| |
| |
| |
| |
| |
| |
| |
770 |
| |
770 |
| |
Thermal
conductivity
λ25ºC[W/(m„K)]
<cal/cm„sec„ºC> |
13
<0.03> |
13
<0.03> |
21
<0.05> |
17
<0.04> |
17
<0.04> |
17
<0.04> |
17
<0.04> |
21
<0.05> |
24
<0.06> |
29
<0.07> |
120-170
<0.29-0.41> |
| Volume
resistivity |
pv25ºC@[Ω„m] |
>1012 |
>1010 |
>1010 |
>1012 |
>1012 |
>1012 |
>1011 |
>1012 |
>1012 |
>1012 |
>1012 |
tk100[ºC]F
(rv=100MΩ„cm) |
550 |
350 |
650 |
| |
| |
| |
| |
600 |
390 |
700 |
520 |
tk1[ºC]F
(rv=1MΩ„cm:Te) |
800 |
600 |
1000 |
1100 |
1000 |
1000 |
1000 |
1100 |
580 |
1100 |
780 |
Electric
breakdown
strength
Es[106V/m] |
>10 |
>10 |
>10 |
>10 |
>10 |
>10 |
>10 |
>10 |
>10 |
>10 |
>10 |
| Permittivity@ε(at
1MHz) |
8.5 |
10 |
9.5 |
9.5 |
9.5 |
9.7 |
9.7 |
9.6 |
12 |
10.3 |
8.9 |
Dielectric
loss tangent
tanδ(at 1MHz)[10-4] |
12 |
10 |
3 |
4 |
4 |
4 |
8 |
3 |
4 |
<1 |
4 |
[Conversion formula of unit]
@Bending strength@[N/mm2]0.0981[kg/cm2]
@Thermal conductivity@[W/(m„K)]419[cal/cm„sec„ºC]
@Volume resistivity@[Ω„m]x100[Ω„cm]
@Electric breakdown strength@[106V/m][kV/mm]
The value in this stable is the reference value measured by our company.
|
