Sandblast Laser Scribing Zirconia Alumina Ceramics Substrate High Thermal Conductivity
Ceramic Substrate:
The ceramic substrate, is a sheet-like material which forms a supporting base for the film circuit component and the externally-applied component on the basis of the electronic ceramic.Ceramic substrates have high temperature resistance, high electrical insulation properties, low dielectric constant and dielectric loss, high thermal conductivity, good chemical stability, and similar thermal expansion coefficients of components.According to the application field of ceramic substrate, it is divided into HIC (hybrid integrated circuit) ceramic substrate, focusing potentiometer ceramic substrate, laser heating fixing ceramic substrate, chip resistor substrate, network resistor substrate, etc.; Different ways, ceramic substrates are divided into two types: molded tablets and laser scribe films.Ceramic substrate materials include Al2O3, AlN, SiC, BeO, BN, mullite, and glass ceramics. Although the thermal conductivity of Al2O3 ceramic substrate is not high (20W/m.K), it is the most widely used ceramic substrate because of its relatively simple production process, low cost and low price.
Alumina ceramic data
| Aumina Ceramic Properties | 96% Alumina Ceramic | 99% Alumina Ceramic |
| Item | Unit | Typical Values |
| Physical Properties |
| Color | | White | Ivory |
| Density | g/cm3 | 3.7 | 3.85 |
| Alumina Content | % | 96% | 99% |
| Gas permeability | | 0 | 0 |
| Water Absorption | | 0 | 0 |
| Mechanical Properties |
| Rockwell Hardness | HRA | 80 | 82 |
| Vickers Hardness (Hv50) | Gpa(Kg/mm²) | 15.7(1600) | 15.7(1600) |
| Flexural Strength(20°C) | Mpa | 300 | 330 |
| Compressive Strength(20°C) | Mpa | 2000 | 2000 |
| Modulus of Elasticity (20°C) | Gpa | 275 | |
| Poisson's Ratio (20°C) | | 0.22-0.23 | |
| Fracture Toughness(20°C) | MPam1/2 | 3.5 | 4 |
| Thermal Properties |
| Thermal Conductivity(20°C-400°C) | W(m.K) | 25 | 27.5 |
| Thermal Expansion Coefficient | 10-6/°C | 6.5-7.5 | 7.6 |
| Thermal Shock Resistance | T°C | 200 | 200 |
| Maximum Use Temperature | °C | 1600 | 1650 |
| Electronic Properties |
| Dielectric Strength | KV/mm | >12 | >10 |
| Dielectric Constant | Er | 9 | 9.1 |
| Dielectric Loss Angle(1MHz) | | 0.0002 | 0.0002-0.0003 |
| Volume Resistivity(20°C) | Ω.cm | >1014 | >1014 |
company information
Wuxi Special Ceramic Co.,Ltd 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 30 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.
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