Product application and performance Product applications and uses
Si single crystal industry, GaN, AlN, sapphire and other MOCVD pedestals. -Graphite base coating for single crystal silicon epitaxial growth
Main performance: high purity, erosion resistance, high thermal conductivity, – MOCVD process, graphite base coating for GaN epitaxial growth
high temperature resistance, low thermal expansion coefficient.
|Thermal Conductivity||250 W/m °K||Laser flash method, RT|
|Thermal Expansion (CTE)||4.5 x 10-6 °K||Room temp to 950 °C, silica dilatometer|
|Density||3.21 g/cc||Sink-float and dimension|
|Specific heat||0.66 J/g °K||Pulsed laser flash|
|Flexural strength||450 MPa560 MPa||4 point bend, RT4 point bend, 1300°|
|Fracture toughness||2.94 MPa m1/2||Microindentation|
|Hardness||2800||Vicker’s, 500g load|
|Elastic ModulusYoung’s Modulus||450 GPa430 GPa||4 pt bend, RT4 pt bend, 1300 °C|
|Grain size||2 – 10 µm||SEM|
Silicon carbide (SiC) coated base is the best base for single crystal silicon and GaN epitaxy, which is the core component of the epitaxy furnace. The base is a key production accessory for monocrystalline silicon for large integrated circuits. It has high purity, high temperature resistance, corrosion resistance, good air tightness and other excellent material characteristics.
Graphite base coating for single crystal silicon epitaxial growthSuitable for Aixtron machines, etcCoating thickness: 90~150umThe diameter of the wafer crater is 55mm.
* more than 3000 square meters of 1000 class dust-free workshop
* Cooperative R & D team of Chinese Academy of Sciences
* Specialized production and precision testing equipment
Ningbo VET Energy Technology Co., Ltd is a professional manufacturer for graphite parts, especially in development of new semiconductor materials and focusing on the research and development of SiC coating. The company’s main products are SiC-coated susceptors for LED industry and monocrystalline silicon industry. The SiC film used for LED industry and monocrystalline silicon industry is cubic phase, which has the same lattice structure as diamond, and its hardness is only as good as diamond. Silicon carbide is the most mature wide band gap semiconductor material, and has broad application prospects in the semiconductor industry. In addition, silicon carbide has a high thermal conductivity, a small thermal expansion coefficient, high temperature resistance (about 2700 degrees Celsius), and excellent corrosion resistance. The company’s silicon carbide coating products are also widely used in aerospace, photovoltaic industry, nuclear energy, high-speed rail, automotive and other industries.
Do you have a minimum order quantity?
Yes, we require all international orders to have an ongoing minimum order quantity.
Can you supply the relevant documentation?
Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.
What is the average lead time?
For samples, the lead time is about 7 days. For mass production, the lead time is 15-25 days after receiving the deposit payment. The lead times become effective when we have received your deposit, and we have your final approval for your products. In all cases we will try to accommodate your needs. In most cases we are able to do so.
What kinds of payment methods do you accept?
You can make the payment to our bank account, Western Union or PayPal:
30% deposit in advance, 70% balance before shipment or against the copy of B/L.
What is the product warranty?
We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone’s satisfaction
Do you guarantee safe and secure delivery of products?
Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.
How about the shipping fees?
The shipping cost depends on the way you choose to get the goods. Express is normally the most quickest but also most expensive way. By seafreight is the best solution for big amounts. Exactly freight rates we can only give you if we know the details of amount, weight and way. Please contact us for further information.
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