alumina substrate,ceramic substrate,alumina ceramic substrate,ceramic pcb substrate
This alumina substrate with excellent characteristics was made possible thanks to our own thin sheet ceramics manufacturing technology.
We also handle processed alumina substrates with fine rounded/square holes or slits, as well as polished substrates.
Main Applications
- A. High-frequency thin film circuit substrates
- B. Capacitor/resistor substrates
- C. Sensor component substrates
Features
- A.Low surface roughness
Even heat treated products have a surface roughness that is equivalent to that of polished products.
(Ra 0.03μm) - B.High bending strength
It has a three-point bending strength of 660 MPa which is approximately twice that of conventional substrates. - C.High purity
It is made from 99.9% pure alumina. - D.Fine material properties
It is a dense material with few internal pores. - E.Good electrical characteristics
Low dielectric loss tangent in the high frequency band.
(tanσ:10-4 at10 GHz) - Ultra-thin substrates with a thickness of 0.1 mm are also available.
Alumina Substrates (Substrates for Milli/Micro-Wave Devices)
| | Main Parameter:(Chemical/physical) | | |
| Property | Item | Unit | 99.7% Alumina ceramics |
| General properties | Main component | wt% | 99.7~99.9 |
| Density | gm/cc | 3.94~3.97 |
| Color | - | Ivory |
| Water absorption | % | 0 |
| Mechanical Properties | Flexural Strength(MOR)20℃ | Mpa(psix10*3) | 440-550 |
| Elastic Modulus 20℃ | Gpa(psix10*6) | 375 |
| Vickers Hardness | Gpa(kg/mm2)R45N | ＞＝17 |
| Bending Strength | Gpa | 390 |
| Tensile Strength 25℃ | Mpa(PSIX10*3) | 248 |
| Fracture Toughness(k l c) | Mpa*M*1/2 | 4~5 |
| Thermal Properties | Thermal conductivity(20℃) | w/mk | 30 |
| Coefficient of Thermal expansion (25-1000℃) | 1x10-6/℃ | 7.6 |
| Thermal shock resistance | ℃ | 200 |
| Maximum use temperature | ℃ | 1700 |
| Electrical Properties | Dielectric Strength(1mhz) | ac-kv/mm(ac v/mil) | 8.7 |
| Dielectric Constant(1MHZ) | 25℃ | 9.7 |
| Volume Resistivity | ohm-cm(25℃) | ＞10*14 |
| | ohm-cm(500℃) | 2x10*12 |
| | ohm-cm(1000℃) | 2x10*7 |
Our Company
Wuxi Special Ceramic Electrical mainly produces alumina, Silicon nitride, Zirconia, Steatite, Boron nitride, Cordierite,mullite products, widely used in metal welding, electronic conductor, mechanics, assembling, insulation, chemicals, instrument, textile, nuclear industry, aerial field.We accept trial produce according to the drawing or sample.It usually takes 15 days to finish trial product.Mass produce usually takes 30 days.Goods' package is carton or PLT.It can be negotiable with each other.
We mainly sell goods to toshiba lighting group in Japan and Europe.Our aim is to deliver goods with high quality at quick delivery date.
quality guarantee:mass produce by 100% inspection
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Pcb Al2O3 Ceramic Substrate Alumina Ceramic Plate Good Polished High Insulation Images
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