What Is a SiC SBD (Silicon Carbide Schottky Diode)?

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December 16, 2025

Silicon carbide (SiC) is a compound composed of carbon (C) and silicon (Si). Among its various crystal structures, 4H-SiC, a hexagonal polytype, offers key advantages such as high critical breakdown electric field and high thermal conductivity.

These properties make it an excellent semiconductor material for manufacturing high-voltage, high-temperature, and radiation-resistant power devices. Today, SiC is widely recognized as one of the most advanced, commercially mature, and high-performance wide-bandgap semiconductor materials available.

What Is a Schottky Diode (SBD)?

A Schottky diode (SBD) is a semiconductor device formed by a metal-semiconductor junction (e.g., using metals such as molybdenum), rather than a traditional PN junction.

Its key characteristics include low forward voltage drop and extremely short reverse recovery time.

These features make Schottky diodes highly suitable for high-speed switching applications.

What Is a SiC SBD?

A SiC Schottky Barrier Diode (SiC SBD) is a Schottky diode fabricated on a silicon carbide substrate, and is classified as a unipolar power device.

Key Advantages of SiC SBD

SiC SBD devices offer:

High voltage capability Fast switching performance Low forward voltage drop Excellent high-temperature stability

Typical Applications

Thanks to these advantages, SiC SBDs are widely used in demanding environments such as high-voltage systems, high-frequency power electronics and high-temperature operating conditions

About THINKANTECH Technology

THINKANTECH Technology is a manufacturer of wide-bandgap power semiconductor devices, founded by industry experts and a team of innovative professionals. The company specializes in the R&D and commercialization of power semiconductor devices and modules, including:

Si MOSFETs & IGBTs GaN HEMTs SiC MOSFETs & SBDs IGBT and SiC modules

Its products are widely used in consumer electronics, photovoltaics & energy storage, automotive systems, AI servers, and industrial automation.

It is recognized as an Above-Scale Enterprise in 2022, and a National High-Tech Enterprise in 2023. It is also ISO9001 certified and has achieved IATF16949 automotive-grade certification in 2024.