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SiC wafer grade matters because silicon carbide is often used in devices that must handle high voltage, high temperature, high frequency, or harsh operating conditions. A small substrate defect may not look serious during incoming inspection, but it can become a leakage path, breakdown point, epitaxy issue, or reliability risk after device fabrication.

Silicon (Si) wafers have been the standard in the semiconductor industry for decades, forming the backbone of electronic devices. However, as power electronics demand higher efficiency, robustness, and performance, Silicon Carbide (SiC) wafers are emerging as a revolutionary alternative.

Power conversion is under pressure to do more in less space. In modern chargers, inverters, industrial drives, renewable energy systems, and EV semiconductor platforms, engineers are expected to reduce switching loss, raise efficiency, handle higher voltage, and keep thermal behavior stable at the same time.

Silicon (Si) and silicon carbide (SiC) wafers are both foundational semiconductor substrates, but they serve very different engineering goals. In short, Si is the workhorse for mainstream logic, memory, sensors, and analog ICs due to its mature ecosystem and broad process compatibility, while SiC is a wide-bandgap material optimized for high-power, high-voltage, and high-temperature electronics where switching efficiency and thermal robustness are paramount.