Silicon carbide (SiC), also known as carborundum, is a semiconductor containing silicon and carbon with chemical formula SiC. SiC is used in semiconductor electronics devices that operate at high temperatures or high voltages, or both.SiC is also one of the important LED components, it is a popular substrate for growing GaN devices, and it also serves as a heat spreader in high-power LEDs.
二、Description of SIC Wafer
| Property | 4H-SiC, Single Crystal | 6H-SiC, Single Crystal |
| Lattice Parameters | a=3.076 Å c=10.053 Å | a=3.073 Å c=15.117 Å |
| Stacking Sequence | ABCB | ABCACB |
| Mohs Hardness | ≈9.2 | ≈9.2 |
| Density | 3.21 g/cm3 | 3.21 g/cm3 |
| Therm. Expansion Coefficient | 4-5×10-6/K | 4-5×10-6/K |
| Refraction Index @750nm | no = 2.61
ne = 2.66 |
no = 2.60
ne = 2.65 |
| Dielectric Constant | c~9.66 | c~9.66 |
| Thermal Conductivity (N-type, 0.02 ohm.cm) | a~4.2 W/cm·K@298K
c~3.7 W/cm·K@298K |
|
| Thermal Conductivity (Semi-insulating) | a~4.9 W/cm·K@298K
c~3.9 W/cm·K@298K |
a~4.6 W/cm·K@298K
c~3.2 W/cm·K@298K |
| Band-gap | 3.23 eV | 3.02 eV |
| Break-Down Electrical Field | 3-5×106V/cm | 3-5×106V/cm |
| Saturation Drift Velocity | 2.0×105m/s | 2.0×105m/s |
三、Catalog Commen Size
|
4H-N Type / High Purity SiC wafer/ingots
2 inch 4H N-Type SiC wafer/ingots
3 inch 4H N-Type SiC wafer 4 inch 4H N-Type SiC wafer/ingots 6 inch 4H N-Type SiC wafer/ingots |
4H Semi-insulating / High Purity SiC wafer 2 inch 4H Semi-insulating SiC wafer
3 inch 4H Semi-insulating SiC wafer 4 inch 4H Semi-insulating SiC wafer 6 inch 4H Semi-insulating SiC wafer |
|
6H N-Type SiC wafer
2 inch 6H N-Type SiC wafer/ingot |
Customzied size for 2-6inch
|
四、FAQ
Q: What’s the way of shipping and cost?
A:(1) We accept DHL, Fedex, EMS etc.
(2) it is fine If you have your own express account ,If not,we could help you ship them and
Freight is in accordance with the actual settlement.
Q: How to pay?
A: T/T 100% deposit before delivery.
Q: What’s your MOQ?
A: (1) For inventory, the MOQ is 1pcs. if 2-5pcs it’s better.
(2) For customized commen products, the MOQ is 10pcs up.
Q: What’s the delivery time?
A: (1) For the standard products
For inventory: the delivery is 5 workdays after you place the order.
For customized products: the delivery is 2 -4 weeks after you order contact.
Q: Do you have standard products?
A: Our standard products in stock. as like substrates 4inch 0.35mm.
6inch 150mm Silicon Carbide SiC Wafers 4H-N type for MOS or SBD Production Research and Dummy grade Sapphire Tubes: Crystal Clear Vision Corrosion Resistance in hot demand xinkehui
