MgO Single Crystal Substrate for High Temperature Superconducting Thin Film
Magnesium oxide (MgO) single crystal substrate is widely used in many thin film technology fields, is an excellent single crystal substrate, widely used in the preparation of ferroelectric thin film, magnetic thin film, photoelectric thin film and high temperature superconducting thin film. Because the dielectric constant and loss of MgO single crystal in the microwave band are very small, and can obtain a large area of substrate (diameter 2" and larger), it is one of the important high temperature superconducting thin film single crystal substrates in the current industry. It can be used to make high temperature superconducting
Main performance parameters | |
Growth method | arc melting method |
Crystal structure | cube |
Lattice constant | a=4.130 Å |
Melting point (℃) | 2800 |
purity | 99.95% |
Density (g/cm3) | 3.58 |
hardness | 5.5(mohs) |
Coefficient of thermal expansion (/℃) | 11.2x10-6 |
Crystal cleavage plane | <100> |
Optical transmission | >90%(200~400nm),>98%(500~1000nm) |
Dielectric constant | ε= 9.65 |
Thermal conductivity (CAL/KCM/s) | 0.14 300°K |
Ra: | ≤5Å(5µm×5µm) |
Packing | 100 clean bags, 1000 super clean room |
FAQs:
A: We look at ourselves as the piezo wafer specialist. We are the very first to work with Single Crystal Quartz in China about 30 years ago. Then gradually we step in the field of LiNbO3, LiTaO3, Quartz glass, LGS, CTGS etc. Especially, if you are looking for a piezo quartz supplier, we are the ultimate choice! We export millions of quartz blanks each year because we master the AT, SC and IT cuts with superior angle precision.
A: Yes, of course. We can fabricate as per your request. In addition, we are so experienced with piezo wafers that we can provide you relevant suggestions if you are not 100% sure about your choice. Besides, we do have some standard wafers in stock, please check with us.
A: Yes, we would suggest you go with the courier agent you are most familiar with (DHL, FedEX, UPS etc.). We can ship via your account. And, of course, we will pack the products safely in acceptable size to help you save the shipping cost. If you need us to take care of the freight, it’s also not a problem. We also have good discount with the international courier companies.
A: The wafer products are fragile and sometimes expensive. The last thing, as the manufacturer, we want to see is the products we make were damaged during courier. As a result, we will pack the wafers adequately and put them in a proper carton filled with buffer sponge. However, accidents are inevitable sometimes. So, please follow the “Acceptance check” steps shown in the drawings below. If the unwanted happened, we will either give the replenishment or refund if you follow the checking steps.
Acceptance Check