HOME > Products > Electronic material > Aluminum PWB material > AC-7305
Aluminum IMS / Solder crack resistant type
|
λ=5W/mK Excellent Solder crack resistance |
AC-7305
|
▲Bonding sheet AD-7305 |
■Composition |
|
<Image of solder crack generation and a countermeasure against it> |
 |
■Standard specification |
| Items |
Specifications |
Aluminum IMS
AC-7305 |
Bonding sheet
AD-7305 |
Nominal thickness
(μm) |
100 / 120 |
100 / 120 |
Thickness of Release film
(μm) |
― |
38 - 75 |
Thickness of insulation layer and tolerance
(μm) |
Nominal thichness ± 20 |
Nominal thichness ± 20 |
Thickness of Cu foil
(μm) |
35 / 70 / 105 |
― |
Thickness of Aluminum plate
(mm) |
1.0 / 1.5 / 2.0 |
― |
Shipping size
(mm) |
510mm × 510mm
340mm × 510mm
and so on |
|
■Application
|
- PWB necessary with countermeasure to solder crack
|
■Breakdown voltage |
 |
| Test results show that 120μm thick of insulation layer has enough insulation strength upto 5000 volt. |
■Long term reliability |
＜Peel strength＞ |
|
Test results show that AC-7305 keeps enough peel strength even under atmosphere as follows
- 3000 times of thermal recycle between -40℃ and 125℃ for each 30 minutes.
- 150℃ for 3000 hours.
- Temperature.=28℃ and Humidity=85% for 3000 hours.
|
＜Breakdown voltage＞ |
 |
Test results show that AC-7305 keeps enough insulation strength even under atmosphere as follows
- 3000 times of thermal recycle between -40℃ and 125℃ for each 30 minutes.
- 150℃ for 3000 hours.
- Temperature.=28℃ and Humidity=85% for 3000 hours.
|
■General properties |
| Test items |
Unit |
Treatment |
Results |
Insulation
layer |
Thermal conductivity |
Laser flash |
Ｗ/mK |
A |
4.2 |
| TIM tester |
5.0 |
| Dielectric constant |
1MHz |
― |
C-96/20/65 |
6.5 |
| Dissipation factor |
1MHz |
― |
0.029 |
| Glass transition temp. |
ＤＭＡ |
℃ |
A |
143 |
| Thermal expansion |
α1 |
ppm/℃ |
32 |
| α2 |
― |
| Storage elastic modulus |
-40℃ |
GPa |
13 |
| 25℃ |
0.4 |
| 125℃ |
0.2 |
| Young's modulus |
RT |
GPa |
1.5 |
| Poisson's ratio |
RT |
― |
0.11 |
Aluminum
IMS |
Breakdown voltage |
100μm thick.
(Insulation layer) |
kV |
A |
4.6 |
120μm thick.
(Insulation layer) |
5.0 |
| Volume resistivity |
A |
ＭΩ・ｍ |
C-96/20/65 |
5.1×106 |
| Surface resistance |
A |
ＭΩ |
9.5×107 |
| Solder limit |
300℃ |
sec. |
A |
300く |
| Peel strength |
35μｍ |
kN/m |
0.8 |
| 70μm |
1.4 |
| UL flammability |
― |
UL-94 |
V-0 equiv. |
|
The above figures are not guaranteed value but one of the test results at our laboratories. |
