6 inch HPSI SiC Wafer Manufacturer For Optical AR

Type: Optical SiC
Diameter：200mm
Grade: Production
Application: AR AI

Product Description

HMT Company as the professional SiC wafer manufacturer, offers 6-inch and 8-inch HPSI (High Purity Semi-Insulating) SiC wafers specifically for optical, AR, and AI applications. Our wafers feature a thickness of 500μm ±25μm and a high refractive index of >2.6% across the 400-800nm wavelength range, providing the foundational material to address these core challenges.

Silicon Carbide (SiC) as a "third-generation semiconductor" material – is emerging as a key enabler to overcome multiple bottlenecks in AR glasses, including weight, field of view (FOV), and thermal management, thanks to its outstanding overall performance.Throughout the evolution of AR glasses, the conflict between lightweight design and high performance has remained a core challenge.

Leveraging its unique physical properties, Silicon Carbide is emerging as a viable solution to address these multiple technical challenges in AR glasses.

Breakthrough in Optical Performance

Silicon Carbide's high refractive index (2.6-2.7) far surpasses that of traditional materials. This characteristic enables AR glasses to achieve a wide FOV exceeding 80 degrees using a thinner single-layer lens structure, fundamentally resolving the conflict between FOV and weight. SiC-based optical waveguides can achieve higher optical efficiency with thinner structures, providing crucial support for the slim and lightweight design of AR glasses.

Image Quality Enhancement

The exceptional hardness of SiC provides the foundation for maintaining extremely high

structural precision during nano-scale grating etching. This effectively preserves grating structure accuracy and sidewall verticality, suppressing rainbow artifacts at the source and significantly improving image quality.

Thermal Management Revolution

Silicon Carbide's thermal conductivity is orders of magnitude (over a hundred times) higher than that of traditional glass. It can serve as an efficient heat dissipation substrate, rapidly drawing heat away from core areas. This property is crucial for ensuring stable device operation, especially when supporting high-brightness displays up to 5000 nits and extended runtime.

When AR glasses finally achieve a weight and form factor comparable to regular eyewear, and when display quality and battery life no longer hinder the user experience, the industry will truly possess the conditions to transition from "technology trial" to "mass adoption."

In the long race of AR glasses development, SiC might not be the most glamorous star, but it undoubtedly serves as the invisible cornerstone steadily supporting the progress of the entire industry.