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Polished Alumina Substrate features dimensional stability at high temperatures for multilayer thin-film technology. It mitigates the electrical disconnection in thin-film printed circuits and withstands the extreme natural condition of some sample solutions and variances in temperature.
| Product No. | A476T | A479 | A479H |
| Content % | 96 | 99.5 | 99.5 |
| Color | White | Ivory | Ivory |
| Density (g/cm3) | 3.7 | 3.9 | 3.9 |
| Size |
Max. 120mm x 120mm SQ Thickness: 0.25, 0.38, .0635mm |
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| Thickness Tolerance |
±0.02mm (＜3 square inches) ±0.05mm (≥3 square inches) |
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| Substrate Thickness (mm) | 0.05-2.7 | 0.05-0.7 | 0.05-0.7 |
| Flatness (mm) | 0.05-0.6 | 0.05-0.4 | 0.05-0.4 |
| Surface Roughness (Mirror Polish) (mm) |
＜Ra0.05 | ＜Ra0.02 | ＜Ra0.01 |
| Vickers Hardness HV9.807N (Gpa) | 13.7 | 15.7 | 15.7 |
| Flexural Strength (Mpa) | 350 | 370 | 370 |
| Young's Modulus of Elasticity | 320 | 370 | 370 |
| Thermal Conductivity (20℃) | 24 | 32 | 32 |
| Specific Heat Capacity (J/g·K) | 0.78 | ||
| Dielectric Strength (kV/mm) | 15 | ||
To hold samples for spectroscopic measurement.
Our Polished Alumina Substrate is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
