Material Introduction:
Silicon Nitride (Si3N4) is a widely used ceramic material in high temperature application, it has high strength in both room temperature and high temperature condition, the strength of silicon nitride can be kept up to 1200ºC; the low coefficient of thermal expansion make it a ceramic material possessing excellent thermal shock resistance; at the same time, it also has good thermal conductivity
The specification of the ceramic tray and substrate
A.The typical thickness of the silicon nitride substrate covers 0.30mm, 0.5mm, 0.635mm, 1.0mm
B.The biggest diameter of the round ceramic wafer can be up to 400mm in 3mm, 4mm, 5mm thick
The main features of the Si3N4 ceramic tray and substrate
High thermal conductivity ( up to 70 W/m.k), 3 times of alumina ceramic substrate;
date sheet
| Item | Unit | Typical Values |
| Physical Properties |
| Density | g/cm3 | >3.2 |
| Mechanical Properties |
| Hardness | HRA90 |
| Vickers Hardness (Hv50) | HV0.5 | >1550 |
| Modulus of Elasticity | Gpa | 290 |
| Flexural Strength | Mpa | >600 |
| Compressive Strength | Mpa | 2500 |
| Fracture toughness | Mpam1/2 | >6.0 |
| Thermal Properties |
| Maximum use temperature | °C | 1200 |
| Thermal Conductivity | W/(m.k) | 15-20 |
| Thermal Expansion Coefficient | 10-6/°C | >3.1 |
| Thermal Shock Resistance | T°C | 500 |
| Specific Heat Capacity | KJ/kg.K | 700 |
| Electrical Properties |
| Dielectric Strength | KV/mm | 1 |
| Dielectric Constant | er |
| Volume Resistivity at 20°C | Ω.cm | 1.0X10(12) |
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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Precision Si3n4 Silicon Nitride Ceramic Substrate Customized 0.3mm 1.0mm Images
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