Essential details
MOQ:10
Shipping:Air freight, land freight, sea freight
Product Code:CRY-09
Product Introduction
Product name: Magnesium Oxide (MgO) Substrate
Magnesium oxide is an ionic crystal with a cubic rock-salt lattice. Its lattice parameters sit close to those of iron, nickel and cobalt, which is the reason it is the standard substrate for growing metal and ferromagnetic films.
Key properties:
The lattice match to Fe, Ni and Co reduces misfit during film growth, so single crystal metal films of good quality can be formed on it. Transparency runs from ultraviolet to infrared, and the material combines high dielectric strength, thermal stability, chemical stability and high hardness. The high dielectric constant allows it to serve as a gate dielectric in MOS devices, and the structure is close enough to some high-temperature superconductors that it also works as a substrate for those films.
The lattice match to Fe, Ni and Co reduces misfit during film growth, so single crystal metal films of good quality can be formed on it. Transparency runs from ultraviolet to infrared, and the material combines high dielectric strength, thermal stability, chemical stability and high hardness. The high dielectric constant allows it to serve as a gate dielectric in MOS devices, and the structure is close enough to some high-temperature superconductors that it also works as a substrate for those films.
One handling note:
MgO cleaves along <100>, so wafers are supplied with edges and handling in mind and should not be cleaved in use unless that is intended.
Typical use: substrates for metal and ferromagnetic films, gate dielectrics in MOS devices, substrates for high-temperature superconducting films, and optical windows in the ultraviolet to infrared.
Fabrication and options:
Standard sizes 5×5, 10×10, 20×20 and 30×30 mm and Ø50.8 mm, thickness 0.5 mm and 1.0 mm, orientation <001>, <110> or <111>, single or double side polished to Ra ≤ 5 Å, orientation accuracy ±0.5°. Packed in a Class 100 clean bag inside a Class 1000 clean room.
Standard sizes 5×5, 10×10, 20×20 and 30×30 mm and Ø50.8 mm, thickness 0.5 mm and 1.0 mm, orientation <001>, <110> or <111>, single or double side polished to Ra ≤ 5 Å, orientation accuracy ±0.5°. Packed in a Class 100 clean bag inside a Class 1000 clean room.
Ordering:
Minimum order 10 pcs. Send the film material and the size; MgO is quoted with the edge finish that suits the handling you plan.
Minimum order 10 pcs. Send the film material and the size; MgO is quoted with the edge finish that suits the handling you plan.
Product Parameter：
Material | Magnesium oxide, MgO single crystal
Growth method | Special arc melting
Crystal structure | Cubic, rock-salt type
Lattice constant | a = 4.130 Å
Melting point | 2800 °C
Purity | 99.95%
Density | 3.58 g/cm3
Mohs hardness | 5.5
Thermal expansion | 11.2 × 10-6 /°C
Cleavage plane | <100>
Optical transmission | above 90% from 200 to 1000 nm
Dielectric constant | 9.65
Thermal conductivity | 36 W/m·K at 300 K
Size | 5×5, 10×10, 20×20, 30×30 mm; Ø50.8 mm
Thickness | 0.5 mm, 1.0 mm
Polishing | Single side or double side
Orientation | <001>, <110>, <111>
Crystal plane orientation accuracy | ±0.5°; edge orientation 2°, or 1° on special requirement
Surface roughness | Ra ≤ 5 Å over 5×5 µm
Packing | Class 100 clean bag, Class 1000 clean room
Minimum order | 10 pcs
Growth method | Special arc melting
Crystal structure | Cubic, rock-salt type
Lattice constant | a = 4.130 Å
Melting point | 2800 °C
Purity | 99.95%
Density | 3.58 g/cm3
Mohs hardness | 5.5
Thermal expansion | 11.2 × 10-6 /°C
Cleavage plane | <100>
Optical transmission | above 90% from 200 to 1000 nm
Dielectric constant | 9.65
Thermal conductivity | 36 W/m·K at 300 K
Size | 5×5, 10×10, 20×20, 30×30 mm; Ø50.8 mm
Thickness | 0.5 mm, 1.0 mm
Polishing | Single side or double side
Orientation | <001>, <110>, <111>
Crystal plane orientation accuracy | ±0.5°; edge orientation 2°, or 1° on special requirement
Surface roughness | Ra ≤ 5 Å over 5×5 µm
Packing | Class 100 clean bag, Class 1000 clean room
Minimum order | 10 pcs
