Silicon Carbide Substrates

Substrate is the basic material of semiconductor chip, which can be divided into conductive type and semi-insulating type according to the resistivity. Semiconductor devices made of silicon carbide substrate can better meet the application requirements of high temperature, high voltage and lager power, the shape is generally round, and the diameter is usually 2 inches (50mm), 3 inches (75mm), 4 inches (100mm), 6 inches (150mm), 8 inches (200mm) and other specifications.

 

view all silicon carbide substrates

Properties of SiC Substrates

⩟ Good stability at high temperature 

The silicon carbide substrate has good high temperature stability, and the lattice deformation generated by silicon carbide substrate is small in the high temperature working environment, and it is not easy to appear expansion deformation or thermal expansion out of control.

 

⩟ High chemical stability

Silicon carbide substrate has excellent corrosion resistance, it can withstand the corrosion of acid and alkali environment. Its chemical stability is good, no corrosion problems during long-term use.

 

⩟ Excellent mechanical properties

Silicon carbide substrate has excellent mechanical strength and hardness, can withstand large pressure and torque force, and wear resistance is good. Meanwhile, its elastic modulus is large, Young's modulus is high, not easy to deformation or paste to each other.

 

 

 

 

Technical Data of Silicon Carbide Materials

 

Item Unit Index Data
Reaction-sintered SiC
(SiSiC)
Silicon Nitride Bonded With SiC
(NBSiC)
Sintered SiCn Without Pressure
(SSiC)
SiC Content % 85 80 99
Free  Silicon Content % 15 0 0
Max. Service Temp. 1380 1550 1600
Density g/cm3 3.02 2.72 3.1
Porosity % 0 12 0
Bending Strength 20℃ Mpa 250 160 380
1200℃ Mpa 280 180 400
Modulus of Elasticity 20℃ Gpa 330 220 420
1200℃ Gpa 300 / /
Thermal Conductivity 1200℃ W/m.k 45 15 74
Coefficient of Thermal Expansion K-1×10-6 4.5 5 4.1
Vickers Hardness HV kg/mm2 2500 2500 2800

 

*This chart illustrates the standard characteristics of the silicon carbide materials commonly employed in the manufacturing of our SiC products and parts. Please be aware that the attributes of customized silicon carbide products and parts may vary depending on the specific processes involved.

Main Applications of SiC Substrates

Silicon carbide substrate is the basic material of semiconductor chips, compared with silicon substrate, it can better meet the needs of high temperature, high voltage, high frequency and large power, and it is widely used in electric vehicles, photovoltaic power generation, rail transit, data centers, charging piles and other products and equipment.

 

1. High-power devices (conductive type)

Silicon carbide substrate has high thermal conductivity, high breakdown electric field strength, low energy loss, suitable for the production of high-power devices, such as power modules, drive modules, etc.

 

2. Radio frequency electronic devices (semi-insulated type)

Silicon carbide substrate has high conductivity, can meet the needs of high-frequency work, suitable for RF power amplifiers, microwave devices and high-frequency switches;

 

3. Photoelectronic devices (semi-insulated type)

Silicon carbide substrate has a wide energy gap and high thermal stability, suitable for production of photodiodes, solar cells and laser diodes and other devices;

 

4. Temperature sensor (conductive type)

Silicon carbide substrate has high thermal conductivity and thermal stability, suitable for production of wide working range and high-precision temperature sensor.

Customized Services

Process for Customized Request

 

⩟ Drawing and sample providing

⩟ Production solution and fabrication method evaluation

⩟ Cost calculation and quotation

⩟ Module cost payment

⩟ Sample delivery

⩟ Sample evaluation and confirmation

⩟ Down payment of bulk order 

⩟ Mass production

⩟ Batch product delivery

Why Choose Silicon Carbide Substrates From ATcera

 Extensive Supplier Expertise

Over 20 years experience in the field of advanced industrial ceramics, ATCERA is able to provide professional technical support and the most optimized solution.

 

 Sophisticated Production Infrastructure

Advanced processing equipment, and strict quality control system.

 

 Assured Batch Supply

Stable production capacity and supply chain, batch delivery cab be well guaranteed.

 

 Cost-Effective Excellence

High cost performance, and perfect after-sales service.

FAQ

Although our primary focus is on advanced ceramic materials such as alumina, zirconia, silicon carbide, silicon nitride, aluminum nitride, and quartz ceramics, we are always exploring new materials and technologies. If you have a specific material requirement, please contact us, and we will do our best to fulfill your needs or find suitable partners.

Absolutely. Our technical team possesses profound knowledge of ceramic materials and extensive experience in product design. We are happy to provide you with material selection advice and product design support to ensure optimal performance for your products.

We do not have a fixed minimum order value requirement. We always focus on meeting our customers' needs, and we strive to provide quality service and products regardless of the order size.

In addition to ceramic products, we also provide a range of additional services, including but not limited to: customized ceramic processing services based on your needs, using blanks or semi-finished blanks produced by yourself; if you are interested in outsourced ceramic packaging and metallization services, please contact us for further discussion. We are always committed to providing you with a one-stop solution to meet your various needs.

Yes, we do. No matter where you are located globally, we can ensure the safe and timely delivery of your order.

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