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.
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
Metasurfaces can be used to manipulate the wavefront,
propagation direction, or focusing of light.
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.
The refractive index shoud be the same, because the si film on sapphire was the same single crystal silicon <100>.
The advantage of sapphire is that it is an excellent electrical insulator, preventing stray currents caused by radiation from spreading to nearby circuit elements.
Monolithic Digital Isolation Buffers
SOS-CMOS image sensor arrays
Energy Harvesting Devices
Three-Dimensional (3D) Integration with no Galvanic Connections
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|