Fabricating 8 inch SI SiC Wafer

As the professional 4H SiC Wafer Manufacturer, we can also produce SI type(8 inch) SiC Wafer with very preferential price. HPSI means high purity semi-insulating and these SiC Substrates have high resistivity(≥1E8ohm.cm), which are mainly used in GaN on SiC Epi Wafer for RF device, communication and radar applications. 

Meanwhile,Colorless and transparent HPSI SiC Wafer semiconductor materials, with their high refractive index (2.7), high hardness, low optical loss, and excellent thermal conductivity, will be the core material for the next-generation "AI+AR" glasses as the entry point for human-computer interaction.

8 inch HPSI SiC Wafer Spec

High-purity semi-insulating SiC substrates, as a wide-bandgap semiconductor material, possess multiple exceptional properties:

High refractive index (approximately 2.6–2.8, higher than glass and silicon-based materials), enabling a single-layer lens to achieve full-color viewing angles exceeding 80° and eliminating the "rainbow artifact" issue common in AR glasses, resulting in superior viewing performance.
The high refractive index of SiC allows red, green, and blue triple-channel colors to be integrated into a single-piece waveguide, eliminating the conventional "multi-layer waveguide design" in AR glasses and improving their size and weight.

High thermal conductivity (approximately 350–490 W/m·K), which enhances thermal management in AR glasses, preventing optical performance degradation caused by heat accumulation.

High hardness and chemical stability, making it suitable for micro/nano-processing and long-term use.

Low optical loss, supporting high light transmittance and image clarity.

These characteristics make silicon carbide particularly well-suited for use in optical engine modules, waveguide plates, and thermal management units in AR glasses.