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--Alumina(AL2O3) Substrate |
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--Application |
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⊙ Thin Film, Thick Film, LED Holder, DPC. |
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--Features |
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⊙ Good thermal conductivity, High insulation performance, Good mechanical strength. |
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--Material Characteristics Table |
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Material |
Purity |
Color |
Surface Finish |
Dielectric Constant |
Dissipation Factor |
Thermal Conductivity |
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Code |
Type |
% |
—— |
uinch |
@1MHz |
@1MHz |
W/mK |
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A |
As-Fired |
96.0 |
White |
＜25.0 |
9.5 |
0.0003 |
24.7 |
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B |
As-Fired |
99.6 |
White |
＜3.0 |
9.9 |
0.0001 |
26.9 |
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C |
Polished |
99.6 |
White |
＜1.0 |
9.9 |
0.0001 |
26.9 |
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T |
Polished |
99.9 |
Translucent |
＜0.8 |
10.0 |
0.0001 |
15.0 |
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--Size Choice |
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Code |
Type |
T-inch (mm) |
L & W -inch(mm) |
T Tolerance |
Roughness Ra u inch（um） |
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A |
96.0% -As-Fired - |
0.006 (0.152) |
2.0*2.0 (50.8*50.8) |
±15.0% |
＜25.0
（0.64） |
| 0.007 (0.178) |
2.75*2.36 (70.0*60.0) |
| 0.008 (0.203) |
3.0*3.0 (76.2*76.2) |
| 0.010 (0.254) |
4.0*4.0 (101.2*101.2) |
| 0.015 (0.381) |
7.5*5.5 (190.5*139.7) |
| 0.020 (0.508) |
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| 0.025 (0.635) |
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B |
99.6% -As-Fired |
0.010 (0.254) |
2.0*2.0 (50.8*50.8) |
±10.0% |
＜3.0
（0.08） |
| 0.015 (0.381) |
3.0*3.0 (76.2*76.2) |
| 0.020 (0.508) |
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| 0.025 (0.635) |
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C |
99.6% Polished |
0.010 (0.254) |
2.0*2.0 (50.8*50.8) |
±5.0% |
＜1.0
（0.03） |
| 0.015 (0.381) |
| 0.020 (0.508) |
| 0.025 (0.635) |
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T |
99.9% Polished |
0.010 (0.254) |
2.0*2.0 (50.8*50.8) |
±5.0% |
＜0.8
（0.02） |
| 0.015 (0.381) |
| 0.020 (0.508) |
| 0.025 (0.635) |
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