Silicon nitride substrates are high-performance ceramic substrates featuring high thermal conductivity, high strength, high hardness, high resistivity, excellent thermal shock resistance, low dielectric loss, and a low CTE. As wide-bandgap semiconductors progressively replace traditional silicon-based devices, and power electronics move toward higher voltage, higher current, smaller footprint, and greater power output, Si₃N₄ ceramic substrates have become the preferred material for high-frequency circuits and power module thermal management and packaging.
