Silicon on Sapphire (SoS) Wafers

University Wafer Silicon Wafers and Semicondcutor Substrates Services
University Silicon Wafer for Production

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Typical Silicon-on-Sapphire (SoS) Packaging for One Wafer

Silicon on Sapphire Wafers

Pre-cut 4'' Silicon-on-Sapphire (SOS) Wafer

We can pre-cut SoS wafers into diced pieces.

Sapphire thickness 460+/-25um,we have 400nm SOS based on 460um DSP R-sapphire,if need SSP SOS,we have it with >/=600nm Si on 460+/-25um SSP Sapphire.

diced silicon on sapphire wafers

Wafers for Metasurfaces Research

600nm thick Silicon deposited on on sapphire wafers have been used from research clients for their academic research metasurfaces.

Our Research Client States:

We will use e-beam lithography to fabricate designed silicon
nanostructures on the sapphire wafer, which is called as
metasurface.

Metasurfaces can be used to manipulate the wavefront,
propagation direction, or focusing of light.

Silicon-on-Sapphire Refractive Index

A researcher asks:

I am interested in Si on Sapphire Wafer(SOS) for some experiments. And I have a few questions. 1. I want to know the refractive index of Si for the light with wavelength of 850nm. Is it okay to think that your Si on wafer has the same refractive index as bulk crystalline silicon whose refractive index for 850nm is n=3.673 and k=0.005? If it is not correct, would it be possible to know the refractive index? 2. Does your company have an agency in Japan which I can buy through? I look forward to hearing from you soon.

UniversityWafer replied:

The refractive index shoud be the same, because the si film on sapphire was the same single crystal silicon <100>.

Silicon on Sapphire (SoS)

The advantage of sapphire is that it is an excellent electrical insulator, preventing stray currents caused by radiation from spreading to nearby circuit elements.

Analog-to-Digital Converters

Analog to Digital Converters

Monolithic Digital Isolation Buffers

Monolithic Digital Isolation Buffers

SOS-CMOS image sensor arrays

silicon on insulator cmos image sensor arrays

Patch-Clamp Amplifiers

Silicon on Sapphire patch clamp amplifiers

Energy Harvesting Devices

Silicon-on-Sapphire Energy Harvesting Devices

Three-Dimensional (3D) Integration with no Galvanic Connections

Silicon on Sapphire three diminsional integration without galvanic connections

Charge Pumps

Silicon-on-Sapphire (SoS) Charge Pumps

Temperature Sensors

Silicon-on-Sapphire (SoS) Temperature Sensors

Below are just some of the Silicon-on-Sapphire Wafers that we have in stock!

Size (") Orientation Thick(μm) Pol Qty Grade Si Film Thickness
4 R-plane+/-0.5° 460+/-20 SSP 50 Prime 0.6um <100> Si
4 R-plane+/-0.5° 460+/-20 SSP 2 Prime 0.6um <100> Si
4 R-plane+/-0.5° 460+/-20 DSP 10 Prime 0.6um <100> Si
4 R-plane+/-0.5° 530+/-20 DSP 4 Prime 100+/-10nm <100> Si
4 R-plane+/-0.2° 530+/-20 DSP 4 Prime 230+/-10nm <100> Si
4 R-plane+/-0.2° 530+/-20 DSP 4 Prime 1.5+/-0.15um <100> Si
4 R-plane+/-0.5° 460+/-20 SSP 4 Dummy  
6 R-plane+/-1° 600+/-20 SSP 1    
8 R-plane+/-2° 725+/-20 SSP 1