300mm sapphire wafers provide exceptional thermal stability, electrical insulation, optical transparency, and chemical resistance, making them ideal substrates for advanced semiconductor devices, LEDs, RF electronics, photonics, MEMS fabrication, and next-generation materials research.
300mm sapphire wafers represent the next generation of large-diameter sapphire substrates used in advanced semiconductor manufacturing, LED production, optoelectronics, RF devices, and research applications. Their exceptional thermal stability, electrical insulation, optical transparency, and mechanical durability make them ideal for demanding wafer fabrication processes.
A Process Development Engineer requested pricing and availability for the following 300mm C-plane sapphire substrate specification:
Could you please let me know if you have sapphire wafers with the following properties?
If available, please provide pricing, lead times, and manufacturing capabilities.
Large-diameter C-plane sapphire wafers are frequently used as substrates for GaN epitaxy, high-brightness LEDs, power electronics, optical components, and advanced semiconductor devices. As wafer diameters increase, manufacturers can produce more devices per substrate, improving throughput and reducing production costs.
Reference #: Contact UniversityWafer for current inventory, manufacturing capabilities, lead times, and pricing information for custom 300mm sapphire wafers.
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Diameter: 300 ± 0.2 mm
Thickness: 4.0 ± 0.1 mm
Orientation: Random or custom orientation available
Surface Finish: Single-side lapped, double-side lapped, or DSP
Material Quality: Optical-grade sapphire with controlled defect density
Edge Profile: Protective chamfer available
Crystal Quality: Bubbles up to 500 μm allowed (maximum 5 pieces)
We are currently accepting requests for custom 300mm sapphire substrates. Submit your specifications and quantity requirements to receive pricing, availability, and technical recommendations from our wafer specialists.
300mm sapphire substrates are among the largest diameter sapphire wafers available for advanced semiconductor and optoelectronic manufacturing. Made from high-purity single-crystal aluminum oxide (Al2O3), these substrates offer exceptional thermal stability, electrical insulation, optical transparency, and chemical resistance. Their unique properties make them ideal for next-generation electronic devices, photonics, and high-volume wafer fabrication processes.
Sapphire is the industry's most widely used substrate for manufacturing high-brightness LEDs. The material's optical transparency and excellent thermal properties make it an ideal platform for growing gallium nitride (GaN) epitaxial layers used in blue, white, and ultraviolet LEDs. Larger 300mm sapphire wafers can significantly increase device output while reducing manufacturing costs per chip.
Large-diameter sapphire substrates serve as a foundation for advanced semiconductor materials including GaN and silicon carbide (SiC). These wide-bandgap materials are critical for high-power electronics, electric vehicles, renewable energy systems, 5G communications, and RF devices. Sapphire's excellent crystal quality helps support high-performance epitaxial growth for these demanding applications.
The outstanding electrical insulation of sapphire makes it ideal for silicon-on-sapphire (SOS) technology. SOS integrated circuits provide excellent radiation resistance, low parasitic capacitance, and high operating speeds. These advantages make them valuable for aerospace, military, satellite, and defense electronics where reliability is essential.
Because sapphire is transparent from the ultraviolet through much of the infrared spectrum, it is widely used for optical windows, lenses, laser systems, sensors, and photonic devices. Its exceptional hardness and scratch resistance allow optical components to perform reliably in harsh environments where conventional materials may fail.
Sapphire substrates are increasingly used in radio-frequency (RF) electronics due to their low dielectric losses and excellent insulating properties. Devices fabricated on sapphire can achieve improved signal integrity and reduced interference, making them suitable for telecommunications infrastructure, radar systems, and advanced wireless technologies.
Universities, national laboratories, and semiconductor manufacturers utilize 300mm sapphire wafers for research involving epitaxial growth, photonics, quantum technologies, MEMS, sensors, and emerging electronic materials. The large wafer diameter provides more usable surface area for experimental devices and process development.
As semiconductor manufacturing continues to scale, larger wafer diameters help increase throughput and reduce production costs. A 300mm sapphire substrate offers significantly more usable surface area than smaller wafers, allowing manufacturers to produce more devices per processing cycle. This improvement can lead to higher yields, better manufacturing efficiency, and lower cost per device.
Producing large-diameter sapphire wafers presents substantial crystal growth and polishing challenges. Maintaining crystal uniformity, minimizing defects, and achieving excellent surface quality across a 300mm substrate requires advanced manufacturing techniques. Continuous improvements in sapphire crystal growth technology are helping meet the growing demand for larger substrates used in LEDs, power electronics, photonics, and next-generation semiconductor devices.