Magnesium Oxide (MgO) Crystals and Substrates
Because the dielectric constant and loss microwave band of MgO single crystal is very small, and the large size MgO substrate (diameter of 2 inches and larger) can be obtained, it has currently become an important industrial HTS thin monocrystalline substrate. MgO is an excellent single crystal substrate for thin films of Ferro magnetic, Photo-electronic, semiconductor and high Tc superconductor applications. There is also a growing amount of interest in using MgO substrates for the III to V elements, and in research studying the epitaxial effects of substrates on the crystallization of polymers. Other applications include the deposition of ferro electric thin film coatings on magnesium oxide substrates. And there are also growing applications for MgO in the field of plasma display panel (PDP) technology.