Get Your Silicon on Sapphire (SOS) Wafer Quote FAST!
UniversityWafer supplies high-quality Silicon on Sapphire (SOS) wafers for universities, government laboratories, semiconductor manufacturers, and research institutions worldwide. Whether you are developing RF integrated circuits, MEMS sensors, radiation-hardened electronics, or photonic devices, we can provide Silicon on Sapphire substrates tailored to your exact specifications.
Our SOS wafers combine an epitaxial silicon layer with a monocrystalline sapphire substrate to deliver excellent electrical isolation, low parasitic capacitance, and outstanding high-frequency performance. We offer custom silicon thicknesses, wafer diameters, crystal orientations, resistivity ranges, and polished finishes for both prototype and production requirements.
Need a custom Silicon on Sapphire wafer? Complete the form below with your required wafer diameter, silicon layer thickness, sapphire orientation, resistivity, polish, quantity, and application. Our technical team will review your specifications and provide a fast quotation.
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What Are Silicon on Sapphire (SOS) Wafers?
Silicon on Sapphire (SOS) wafers consist of a thin, single-crystal silicon epitaxial layer grown on an electrically insulating sapphire (Al2O3) substrate. This unique combination provides excellent electrical isolation, reduced parasitic capacitance, and outstanding high-frequency performance, making SOS wafers an ideal platform for advanced semiconductor devices.
Compared to conventional bulk silicon substrates, Silicon on Sapphire technology enables faster switching speeds, lower power consumption, improved signal integrity, and exceptional radiation tolerance. These advantages have made SOS wafers a preferred substrate for aerospace, defense, RF communications, photonics, and specialized integrated circuits.
Benefits of Silicon on Sapphire Technology
- Excellent electrical isolation between devices
- Very low parasitic capacitance for high-speed circuits
- Outstanding RF and microwave performance
- High resistance to radiation-induced failures
- Reduced leakage current and lower power consumption
- Excellent thermal stability
- Compatible with advanced CMOS and MEMS fabrication
Typical Applications
Silicon on Sapphire wafers are widely used in industries where performance, reliability, and electrical isolation are critical.
- RF integrated circuits (RFICs)
- Microwave and millimeter-wave electronics
- 5G and wireless communication devices
- Radiation-hardened aerospace electronics
- Defense and military systems
- MEMS sensors and actuators
- Photonics and optoelectronic devices
- High-speed CMOS integrated circuits
- Mixed-signal and analog ICs
Available Silicon on Sapphire Specifications
| Specification | Available Options |
|---|---|
| Substrate | Single-crystal Sapphire (Al2O3) |
| Silicon Layer | Epitaxial single-crystal silicon |
| Silicon Orientation | (100), (111), and custom orientations |
| Sapphire Orientation | R-Plane and other orientations available |
| Surface Finish | Prime grade, SSP or DSP depending on application |
| Wafer Diameter | Research and production sizes available |
| Customization | Silicon thickness, resistivity, orientation, and edge profile |
Custom SOS Wafer Solutions
UniversityWafer supplies Silicon on Sapphire wafers manufactured to meet your research or production requirements. Whether you require prototype quantities for university research or production volumes for commercial semiconductor fabrication, our team can provide custom silicon thicknesses, crystal orientations, wafer diameters, resistivity ranges, and polished finishes.
Contact us with your desired wafer specifications to receive a fast quotation for high-quality Silicon on Sapphire (SOS) substrates tailored to your application.