Researchers have used the following MgO Specs.
MgO single crystal substrates
Orientation (100), with orientation accuracy <0.5deg
Edge are oriented (001) ± 1 deg
Size: 10 x 10 mm (+/-0.10mm)
Thickness: 0.5 mm (+/-0.05mm)
Surface Roughness: Ra < 0.5 nm
One side epi-polished
Reference #266223 for pricing.
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A researcher asked about the above: If you have, please quote me one 4-inch wafer with 600nm thick x-cut LN, microns-thick silicon oxide sacrifice layer
UniversityWafer, Inc. Quoted:
MgO doped X-cut LN thin film:600nm / SiO2:3.0um (thermal) / 4'' Si substrate: 500+/-25um HR SSP <100>
Reference #265853 for pricing.
A researchers requested the following quote:
We are looking for very thin (< 100 um), large-aperture ( > 3"), x- or y-cut congruent or stoichiometric MgO doped lithium niobate wafer.
We would use the wafer for terahertz generation.
I couldn't explain more detail, thin wafer is better for our THz application.
Please let me know if you could provide it.
UniversityWafer, Inc. Quoted.
Diameter: 76.2mm +/-02mm
Surface Finish: DSP
Primary Flat: 22+/-2mm
Material: Congruent LiNbO3
Brand/Grade: Optical+MgO 5% Doped
Top Side Ra: <1nm
Backside Ra: <1nm
Reference #251537 for pricing.
What is magnesium oxide? It is a material made of magnesium that is highly transparent, and it is used as a substrate for thin films and single crystals. MgO is also very cost effective, and it is used in a number of applications, such as plasma display panels and high-temperature superconductor thin film coatings. Ultimately, the purpose of magnesium oxide is to serve as a strong, lightweight material that is cheap to produce and a good choice for thin film substrates.
While magnesium oxide is abundant in nature, it does not readily react with other elements. It has six opposite neighbors, which makes it resistant to corrosion. Magnesium oxide has good thermal conductivity and is a semiconductor. This mineral also has a low melting point, and is very resistant to heat and corrosion. In addition, magnesium oxide is transparent to various rays. These are just a few benefits of magnesium oxide wafers.