6H SiC Wafer
Semi-insulating and N-type 6H-SiC substrates designed for RF devices, high-temperature sensors and specialty power electronics. Epi-ready polishes, tight flat/notch geometry per SEMI M55, and traceable defectivity control.
- Samples in 3–7 days
- Small batch in ~7 days
- 1 pc MOQ
6H SIC Crystal Structure Overview
The 6H-SiC (Silicon Carbide) crystal structure is a hexagonal wurtzite-type lattice, characterized by the stacking sequence AaBβCγAaCγBβ. This arrangement consists of: 2/3 cubic (sp³) bonds and 1/3 hexagonal bonds, Fixed relative positions of carbon (C) atoms with respect to silicon (Si) atoms, ensuring structural stability.
The figure below illustrates this atomic configuration.
FEATURES & BENEFITS
- High Hardness: Wear-resistant
- Thermal Conductivity: Stable at high temperatures
- Oxidation Resistance: Withstands high-temperature oxidation
- High-Temperature Stability: Operates up to 1600°C
- Chemical Stability: Resistant to acids and alkalis
APPLICATIONS AREAS
- High-Temperature Equipment: Furnaces, combustion chambers
- Semiconductors: Power electronic components
- Abrasives: Cutting and grinding tools
- Aerospace & Automotive: Engine parts, brake systems
- Chemical Equipment: Reactors, pipelines
6H SIC Wafer Properties
| Property | Single Crystal 6H |
| Lattice Parameters | a = 3.073 Å, c = 15.117 Å |
| Crystal Sequence | ABCACB |
| Band Gap | 3.03 eV |
| Density | 3.21 × 10³ kg/m³ |
| Thermal Expansion Coefficient | 4-5×10⁻⁶ /K |
| Refractive Index | no = 2.707, ne = 2.755 |
| Dielectric Constant | 9.66 |
| Thermal Conductivity | 490 W/mK |
| Breakdown Electric Field | 2-4 × 10⁸ V/m |
| Sound Wave Propagation Speed | 2.0 × 10⁵ m/s |
| Electron Mobility | 400 cm²/V·s |
| Hole Mobility | 90 cm²/V·s |
| Mohs Hardness | ~9 |
6H Silicon Carbide Specification
| Model | Name | Diameter | Thickness |
| AT-SIC-JP001N | Conductive Silicon Carbide Wafer | 2 inches | 0.35 mm |
| AT-SIC-JP002N | Conductive Silicon Carbide Wafer | 3 inches | 0.35 mm |
| AT-SIC-JP003N | Conductive Silicon Carbide Wafer | 4 inches | 0.35 mm |
| AT-SIC-JP004N | Conductive Silicon Carbide Wafer | 6 inches | 0.35 mm |
| AT-SIC-JP005N | Conductive Silicon Carbide Wafer | 2 inches | 0.5 mm |
| AT-SIC-JP006N | Conductive Silicon Carbide Wafer | 3 inches | 0.5 mm |
| AT-SIC-JP007N | Conductive Silicon Carbide Wafer | 4 inches | 0.5 mm |
| AT-SIC-JP008N | Conductive Silicon Carbide Wafer | 6 inches | 0.5 mm |
| AT-SIC-JP005 | Semi-Insulating Silicon Carbide Wafer | 2 inches | 0.35 mm |
| AT-SIC-JP006 | Semi-Insulating Silicon Carbide Wafer | 3 inches | 0.35 mm |
| AT-SIC-JP007 | Semi-Insulating Silicon Carbide Wafer | 4 inches | 0.35 mm |
| AT-SIC-JP008 | Semi-Insulating Silicon Carbide Wafer | 6 inches | 0.35 mm |
| AT-SIC-JP009 | Semi-Insulating Silicon Carbide Wafer | 2 inches | 0.5 mm |
| AT-SIC-JP010 | Semi-Insulating Silicon Carbide Wafer | 3 inches | 0.5 mm |
| AT-SIC-JP011 | Semi-Insulating Silicon Carbide Wafer | 4 inches | 0.5 mm |
| AT-SIC-JP012 | Semi-Insulating Silicon Carbide Wafer | 6 inches | 0.5 mm |
Specifications of 6H SIC Wafer Packaging Box
| Name | Model | Wafer Size Capacity |
| Wafer Single Piece Box | 1 inch | Approximately 25mm diameter wafer |
| 2 inch | Approximately 50mm diameter wafer | |
| 3 inch | Approximately 76mm diameter wafer | |
| 4 inch | Approximately 100mm diameter wafer | |
| 6 inch | Approximately 150mm diameter wafer | |
| 8 inch | Approximately 200mm diameter wafer |
Custom 6H Silicon Carbide Wafers
Zirsec offers full customization of 6H Silicon Carbide wafers to meet your specific needs. Our team works closely with you to deliver the exact specifications required for your application.
Diameter
Available in 2 inches, 3 inches, 4 inches, and 6 inches. Custom sizes available upon request.
Thickness
Standard thickness: 0.35 mm, 0.5 mm. Other thicknesses are available.
Doping Type
Conductive (N-type, P-type) ;Semi-Insulating.
Polishing and Surface Quality
High-quality polished wafers with minimal defects for optimal performance.
Crystal Orientation
Customized crystal orientation options, including specific alignment to suit your application.
FAQ
1) Why choose 6H over 4H?
2) Off-axis or on-axis?
Semi-insulating wafers are typically on-axis for SI device work; N-type epi substrates are commonly 4° off 〈11-20〉 to suppress polytype inclusions and aid step-flow epitaxy.
3) Typical thickness?
4) What MPD can you support?
Prime lots target ≤1–5 cm⁻²; research grades may be higher. We grade per lot and provide maps.
5) Surface roughness and TTV?
6) Standards followed?
7) Can you supply 150 mm?
8) Thermal conductivity vs 4H?
9) Can you mark and package per cleanroom SOP?
Yes. Backside laser marking and single-wafer cassettes as standard.
10) Provide epi service?
Customization
From design to reverse engineering, we provide free technical consulting to help upgrade your equipment. We specialize in high-precision complex parts with ±0.01mm tolerances and special coatings like acid and oxidation resistance, tailored for demanding industrial applications.
FAQ
What types of silicon carbide products does Zirsec supply?
Zirsec offers a wide range of SiC components including tubes, beams, plates, crucibles, rollers, sealing rings, and custom mechanical parts for industrial, chemical, and semiconductor applications.
Can Zirsec provide customized sizes or shapes?
Yes. We support OEM and customized production based on your drawings, specifications, or working conditions.
Do you provide samples for testing?
Yes, sample orders are available for standard items. For custom-made components, small batch samples can be produced after design confirmation.
How can I request a quotation?
Simply fill out the contact form on this page with product type, quantity, and specifications. Our sales engineer will send you a detailed quotation within 24 hours.
Does Zirsec offer technical consultation or design assistance?
Absolutely. Our engineers provide material selection guidance, structural optimization, and technical support for your specific applications.
How does Zirsec ensure product quality?
All products undergo strict inspection procedures, including dimensional accuracy, density, strength, and corrosion resistance tests before delivery.
Tell us your requirements
Our technical engineer will reply with a custom solution and quotation within one working day.
