Semi-insulating SiC-On-Si Composite Substrates 4H Exhibit High Resistivity LED
Semi-insulating SiC On Si Composite Substrates 4H Exhibit High Resistivity LED
Product Description of SiC On Si Composite Substrates:
A semi-insulating silicon carbide (SiC) on silicon compound wafer is a specialized type of wafer that combines the properties of silicon carbide and silicon materials. The wafer consists of a layer of semi-insulating silicon carbide on top of a silicon substrate. The term "semi-insulating" indicates that the material has electrical properties that are not purely conductive or purely insulating, but somewhere in between.
Character of SiC On Si Composite Substrates:
1. High Resistivity: Semi-insulating SiC on Si wafers exhibit high resistivity, which means they have low electrical conductivity compared to regular conductive materials.
2. Low Leakage: Due to their semi-insulating nature, these wafers have low leakage currents, making them suitable for applications requiring minimal electrical leakage.
3. High Breakdown Voltage: They typically have a high breakdown voltage, enabling them to withstand high electric fields without breakdown.
Parameter List of SiC On Si Composite Substrates:
| Item | Specification |
| Diameter | 150 ± 0.2 mm |
| SiC Polytype | 4H |
| SiC Resistivity | ≥1E8 Ω·cm |
| Transfer SiC layer Thickness | ≥0.1 μm |
| Void | ≤5 ea/wafer (2 mm > D > 0.5 mm) |
| Front roughness | Ra ≤ 0.2 nm (5 μm × 5 μm) |
| Si Orientation | <111>/<100>/<110> |
| Si Type | P/N |
| Flat/Notch | Flat/Notch |
| Edge Chip, Scratch, Crack (visual inspection) | None |
| TTV | ≤5 μm |
| Thickness | 500/625/675 ± 25 μm |
Applications of SiC On Si Composite Substrates:
1. High-Frequency Devices: Semi-insulating SiC on Si compound wafers are commonly used in high-frequency devices such as RF transistors, amplifiers, and microwave systems.
2. Power Electronics: They find applications in power electronic devices where high breakdown voltage and low electrical losses are crucial for efficient power conversion.
3. Sensors: These wafers are utilized in sensor technologies where high resistivity and low leakage characteristics are required for accurate sensing and measurement.
4. Optoelectronics: In optoelectronic devices like photodetectors and LEDs, semi-insulating SiC on Si wafers can provide improved performance due to their unique electrical properties.
Applications Picture of SiC On Si Composite Substrates:
FAQ:
A: The use of silicon carbide composite (SiC/SiC) components within fusion reactors has the potential to double the electricity generated from every gigawatt of thermal energy produced compared with advanced steel designs
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
