Sapphire Square Plate Single crystal Al₂O₃ 5.5×5.5mm Thickness 6.04 mm

The Sapphire Square Plate is a precision optical component manufactured from high-purity single-crystal aluminum oxide (Al₂O₃) through directional cutting and double-sided polishing. With dimensions of ​​5.5mm (size) × 6.04mm (thickness)​​, this custom-sized plate is engineered for applications demanding stringent dimensional tolerances and superior optical performance. Leveraging sapphire’s inherent physical advantages—including exceptional hardness and high-temperature resistance—this product is widely utilized in advanced optics, semiconductors, medical devices, and precision electronics.

 Sapphire Square Plate Key Applications​

1. Photoelectronic Devices​​

• ​​LED Substrates​​: Sapphire Square Plate acts as a growth base for GaN-based LEDs, enhancing light extraction efficiency (>80%) for Mini LED backlights and automotive lighting.
• ​​Laser Windows​​: Sapphire Square Plate used in fiber lasers and medical laser systems, enduring high-energy pulses.

​​2. Semiconductor Packaging and Sensors​​

• ​​Power Device Protection​​: Sapphire Square Plate encapsulates IGBT and SiC MOSFETs, leveraging high thermal conductivity to reduce thermal resistance (e.g., in EV inverters).
• ​​Optical Sensors​​: Fabricates infrared thermometers and gas sensor windows, utilizing broad-spectrum transmission for spectral analysis.

​​3. Aerospace and Defense​​

• ​​Infrared Windows​​: Integrated into missile guidance systems and satellite infrared detectors, withstanding 1000°C+ surface temperatures during hypersonic flight.
• ​​Bulletproof Transparent Armor​​: Replaces conventional glass, resisting ballistic impacts (V50 limit >600 m/s) while maintaining optical clarity.

4. ​​Consumer Electronics and Medical​​

• ​​Wearables​​: Sapphire Square Plate used in smartwatch displays and AR glasses, balancing wear resistance and transparency (6.04 mm thickness for slim designs).
• ​​Medical Endoscopes​​: Biocompatible surface-treated windows for high-temperature autoclave sterilization (134°C/30 min).

5. ​​Industrial and Research​​

• ​​High-Temperature Probes​​: Sapphire Square Plate monitors boiler levels and oil well temperatures in corrosive environments (e.g., deep-sea exploration).
• ​​Quantum Device Substrates​​: Sapphire Square Plate supports superconducting films (e.g., MgB₂) for quantum computing and superconducting circuits.

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