FAQ

Sapphire windows are widely used in semiconductor processing equipment, vacuum chambers, laser and optical systems, high-temperature furnaces, and high-pressure reactors. Due to their excellent mechanical strength, thermal stability, and wide optical transmission range, they are ideal for harsh environments where glass or quartz cannot perform reliably.

Sapphire windows offer excellent transmission from the ultraviolet (UV) to the infrared (IR) range, typically from 190 nm to 5 μm. This makes them suitable for UV inspection systems, visible optical applications, and infrared sensing or monitoring environments.

Yes. Sapphire windows are commonly custom-manufactured to meet specific system requirements. Diameter, thickness, shape (round, square, stepped, flanged), edge design, surface quality, and mounting features can all be customized based on drawings or application needs.

Sapphire windows exhibit outstanding thermal and chemical stability, with a melting point above 2000°C and excellent resistance to most acids, alkalis, and plasma environments. This makes them well-suited for semiconductor, chemical processing, and high-temperature industrial applications.

To provide an accurate quotation, customers typically need to specify the application, required dimensions and thickness, optical wavelength range, surface quality, coating requirements, and operating conditions such as temperature, pressure, or vacuum level. Technical drawings are highly recommended for complex or critical applications.

Sapphire windows are significantly stronger than standard optical glass and fused quartz. With a Mohs hardness of 9 and excellent flexural strength, sapphire can withstand higher pressure, thermal shock, and mechanical stress, making it a preferred choice for vacuum chambers, high-pressure systems, and harsh industrial environments.