Insulation High Quality Refractory Ceramic Alumina Substrate:
Alumina Substrate are the main product of our company and sales all over the world are very good.
Mission ceramic provide high quality alumina ceramic products.
Our substrate are widely used for direct bond copper substrate (DBC), printer, LED and other high power circuit substrates and heat emission substrates of electronic components.
We can make any thickness as you need from 0.25 to 1.2mm. Max length we can provide is 280mm.
Alumina Substrate Application:
1.Alumina Substrate for LED Ceramic Suite.
2.Alumina Substrate for Printers.
3.Alumina Substrate for Direct Bonding Copper.
4.HIC Alumina Substrate.
Alumina Substrate Technical Data:
| Characteristic |
Test condition |
Unit |
Qualified |
Fine |
| Color |
|
|
White dense |
White dense |
| Size (mm)) |
Any size (max :134*230) |
| Length tolerances |
|
±0.7%
(Min:0.13mm) |
±0.5%
(Min:0.1mm) |
mm
Thickness |
0.38/0.5/0.635/0.8/1.0/1.2
Any thickness between 0.38 to 1.2 |
| Thickness tolerances |
|
±7%
(Min:0.05mm) |
±5%
(Min:0.05mm) |
| Camber |
|
|
≤0.5% |
≤0.3% |
| Grain size |
|
μm |
3~5 |
3~5 |
| Surface Roughness |
Ra |
μm |
0.2~0.5 |
0.2~0.4 |
| Density |
|
g/cm3 |
≥3.70 |
≥3.72 |
| Physical properties |
Flexural strength |
Three point |
MPa |
≥380 |
≥400 |
| Hardness |
Loaded 4.9 |
GPa |
≥14 |
≥15 |
| Water absorption |
|
% |
0 |
0 |
Thermal properties
|
Thermal conductivity |
25ºC |
W(m*k) |
≥22 |
≥24 |
| thermal expansion |
25-500ºC |
10-6mm/ºC |
6.6~7.5 |
6.6~7.5 |
| 25-800ºC |
6.6~7.9 |
6.6~7.9 |
| Thermal shock resistance |
850ºC |
time |
≥6 |
| Specific heat |
|
J/(kg*K) |
880 |
| Electrical property |
Dielectric constant |
1MHz/25ºC |
|
9.4±0.3 |
| Dielectric loss |
1MHz/25ºC |
×10-4 |
≤3 |
| Volume resistivity |
25ºC |
Ω*cm |
>1014 |
| 500ºC |
>1010 |
| 700ºC |
>109 |
| Breakdown voltage |
|
KV/mm |
>12 |
>12 |
Alumina Substrate Advantages:
High thermal conductivity.
Good thermal shock resistance.
Good surface roughness, flatness.
High dielectric strength, low dielectric constant and dielectric loss.
Laser cutting makes tight tolerance.
Package & Shipping:
Alumina Substrate Package:
Wood box padded with foam board
Carton box padded with foam board.
Shipping: By sea, by air, by express.
About Mission Ceramic Company:
Zhengzhou Mission Ceramic Products Co., Ltd. Locates in Zhenzhou City, Henan Province, central part of China. We have been working in advanced ceramic and thermal industry since 2013.
Our products has been exported to more than 40 countries like USA, UK, Russia, France, Australia Korea etc. We win good reputation from customers because of good quality and service.
Our main products as bellow:
1. Alumina ceramic products, including tubes, rods, crucibles, plates, and other part made by your
Design.
2. Zirconia Ceramic products, including tubes, crucibles, plates and other parts as you need.
3. Silicon carbide ceramic products, including beams, plates, tubes, crucibles etc.
4. Boron nitride ceramic products, including plates, crucible, and other parts as you need.
5. Alumina ceramic fiber products, including fiber, board, and other parts as you need.
6. Heating elements, including MoSi2 heating element and MoSo2 heating element.
If you are interested in any of our products, please contact with us. We will try our best to provide good products and service!
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