Silicon carbide (SiC) is a unique semiconductor material with some excellent physical properties. It has attracted widespread attention due to its single crystal structure, unique performance advantages, wide applications, and broad development prospects.
Key properties:
In terms of structure, silicon carbide single crystals mainly have various crystal polymorphisms, including 3C-SiC, 4H-SiC, 6H-SiC, etc. These different crystal structures have their own unique properties. Among them, 4H SiC and 6H SiC are widely used due to their excellent electronic properties and high thermal conductivity.
The performance advantages of silicon carbide mainly include wide band gap, high Electron mobility, strong thermal stability, good chemical stability and excellent thermal conductivity. Among them, the wide bandgap enables SiC to have high electron penetration ability, which is conducive to operating in harsh environments such as high temperature, high pressure, and high frequency. High electron mobility and thermal conductivity make SiC have good switching performance and heat dissipation performance.
Typical use:
Silicon carbide haa wide range of applications, including power electronics, optoelectronics, high-temperature electronics, automotive electronics, etc. For example, SiC can be used as the basic material for power devices for power conversion and regulation, greatly improving energy efficiency. In the field of optoelectronics, SiC is used to make solar cells due to its ability to withstand extreme environments. In addition, SiC is also widely used in power conversion systems for electric and hybrid vehicles, bringing significant energy efficiency improvements.| Growth Method | PVT |
| Crystal Structure | Hexagonal |
| Lattice constant | a=3.08 Å c=15.08 Å |
| Stacking order | ABCACB |
| Band gap | 2.93 eV |
| Hardness | 9.2(mohs) |
| Thermal conductivity@300K | 5 W/cm·K |
| Dielectric constant | e(11)=e(22)=9.66 e(33)=10.33 |
| Size | 10x3,10x5,10x10,15x15,,20x15,20x20, |
| Dia 2", 15 x 15 mm, 10x10mm | |
| Thickness | 0.5mm,1.0mm |
| Polishing | Single or double sided |
| Orientation | <001>±0.5º |
| Orientation accuracy: | ±0.5° |
| Edge orientation accuracy: | 2°(up to 1 ° for special requirements) |
| Ra: | ≤5Å(5µm×5µm) |
| Packing | Class 100 clean bag, Class 1000 ultra clean room |
