However for special applications we have made parts as thin as 0 0005.
Sapphire wafer material properties.
Silicon on sapphire wafers.
Sapphire is a precious gemstone a variety of the mineral corundum consisting of aluminum oxide α al 2 o 3 with trace amounts of elements such as iron titanium chromium vanadium or magnesium.
It is typically blue but natural fancy sapphires also occur in yellow purple orange and green colors.
Kyocera s sapphire substrates feature excellent material properties and are mass produced for silicon on sapphire sos wafers.
Introduction single crystal sapphire alumina al2o3 offers superior physical chemical and optical properties which make it an excellent material for applications such as high speed ic chips thin filmsubstrates andvariouselectronicandmechanicalcom ponents 1 3.
In addition sapphire can transmit ultraviolet visible and infrared light as well as microwaves a range broader than most materials.
It is a very hard material with a high heat resistance and is highly inert resistant to attack in most process environments i e.
Large geometry substrates wafers and windows of glass quartz fused silica metal and ceramic plates as large as 36 x 36 are available to tolerances within microns.
Transmission curve of sapphire.
Synthetic sapphire is second in hardness only to diamond and retains its high strength at high temperatures.
Products monocrystal sg wafers for next gen led.
Unparalleled hardness outstanding chemical resistance low refractive index and melting point over 2000 c make synthetic sapphire a versatile material of the future.
Kyocera is prepared to meet future customer needs for larger wafer sizes and enhanced particle suppression.
It is chemically inert and easily withstands harsh chemicals such as fluorine plasma and other industrial gasses and fluids with no particle generation.
Hydrofluoric acid and the fluorine plasma applications commonly found in semiconductor wafer manufacturing.
Typical properties of sapphire wafers and substrates sapphire is a single crystal al 2 o 3 with a hexagonal rhombohedral crystal structure.
Parti sapphires show two or more colors.
High temperature and pressure windows or where corrosion resistance and abrasion resistance are required.
Kyocera s sapphire wafers feature excellent material properties and mass producibility.
Valley design is an iso 9002 certified company with nearly 30 years of experience performing precision lapping and polishing materials.
Properties of synthetic sapphire synthetic sapphire is the hardest of all known oxide crystals with a 9 on the mohs scale.
Sapphire wafer have many unique features such as high strength high anti corrosion high anti abrasion low dielectric loss good electrical insulation with excellent mechanical and chemical characteristics sapphire wafer plays an important role in opto electronics industry today and widely used in precision mechanical parts and vacuum equipments.
