HOME > Products > Electronic material > High performance Copper > CS-3305KA
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| Product code |
Double sided
(Representative) |
CS-3305KA |
| Unclad |
- |
| Multilayer |
- |
| Prepreg |
ES-3310KA |
|
|
Middle CTE
Excellent PTH reliability
|
Features
|
|
Applications
- Burn-in board.
- Component embedded substrate.
- Thermal resistant substrate.
|
Reliability test of PTH |
○Specification of test substrate
- Number of layer = 4-layer
- Core = CS-3305KA / 0.2mm thick. / 35μm Cu double-sided
- Outer = ES-3310KA (prepreg of CS-3305KA) / 0.06mm thick ×2-ply / 35μm Cu
- Diameter of PHT = 0.2mm
- Number of PTH = 240 (30×8)
- Pitch of PTHs = 0.5mm
- Plating thick. = 20μm
|
○Condition of thermal cycle test
- -55℃ (30min) ⇔ 150℃ (30min) ×2000-cycle
|
 |
▲ES-3310KA |
<Test result> |
|
| Resistance value of each samples are stable.Consequently,it can be evaluated that CS-3305KA is excellent in PTH reliability. |
General properties |
| Test items |
Unit |
Treatment |
CS-3305KA |
| Halogen-free |
○ |
| Insulation resistance |
RT |
MΩ |
C-96/20/65 |
4.2×108 |
| After treatment |
+D-2/100 |
2.5×108 |
| Volume resistivity |
RT |
MΩm |
C-96/20/65 |
4.2×108 |
| After treatment |
+C-96/40/90 |
2.6×108 |
| Surface resistance |
RT |
MΩ |
C-96/20/65 |
1.8×1010 |
| After treatment |
+C-96/40/90 |
1.1×1010 |
Dielectric constant
(1MHz) |
RT |
－ |
C-96/20/65 |
4.4 |
Dissipation factor
(1MHz) |
RT |
－ |
C-96/20/65 |
0.007 |
| Flexural strength |
Warp |
MPa |
Ａ |
530 |
| Fill |
450 |
| Solder limit
（Float） |
300℃ |
sec |
Ａ |
300< |
| Peel strength |
35μm |
kN/m |
Ａ |
1.6 |
| Water absorption |
％ |
E-24/50
+D-24/23 |
0.09 |
UL flammability
|
－ |
Ａ |
94V-0
equiv. |
| Glass transition temperature |
TMA |
℃ |
Ａ |
240 |
| DMA |
300 |
| Flexural modulus |
Warp |
GPa |
Ａ |
26 |
| Fill |
25 |
| Hot flexural modulus |
Warp |
GPa |
200℃ |
18 |
| Fill |
16 |
Coefficient of thermal expansion
（α1）
|
Z |
ppm/℃ |
50-100℃ |
30～40 |
| X |
11～13 |
| Y |
12～14 |
|
*Above figures show the test result of 1.6mm substrate at our laboratory
*Test method is JIS C 6481 except UL flammability |
Standard specifications
| Substrate thickness (mm) |
0.10 / 0.20 / 0.30 / 0.40 / 0.60 / 0.80 / 1.00 / 1.20 / 1.40 / 1.60 |
| Cu thickness (μm) |
12 / 18 / 35 / 70 |
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