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High performance Photoimageable Material "ESAREX VPA/PDF" |
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| VPA Series (Liquid Types) |
| 1.TECHNOLOGIES |
1) Unique polymer which has cardo structure |
| 2.KEY FEATURES |
1) High Resolution
2) High Heat Resistance
3) Good Conformability |
| 3.TYPICAL APPLICATIONS |
WLP; MEMS; etc. |
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| High Aspect Ratio Patterning of VPA |
| Items |
Unit |
VPA204 |
VPA1001 |
| Resolution |
Aspect ratio (via) |
> 1 |
> 1 |
| C.T.E α1 |
ppm/C |
80 |
80 |
| Tg |
deg.C (DMA) |
174 |
220 |
| Adhesion Strength |
Dry Cu Plating (kN/m) |
 0.5 |
0.5 |
| Young's Modulus |
GPa |
2.1 |
2.9 |
| Tensile Strength |
MPa |
65 |
95 |
| Elongation |
% |
11 |
6 |
| Dielectric Constant at 10GHz |
- |
3.2 |
2.9 |
| Dissipation Factor 10GHz |
- |
0.024 |
0.020 |
| Water absorption |
wt% |
1.3 |
1.2 |
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| Cure Condition: 180C, 60min |
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