A researcher requested the following:
We quoted the following:
single-crystal Aluminum Nitride (AlN) onto Silicon <111> substrates. 6-inch wafers,thickness of the AlN wafer is 1400 nm. Furthermore, 500 nm PECVD SiO2 capping layer on top
single-crystal Aluminum Nitride (AlN) onto Sapphire <0001> substrates. 6-inch wafers,thickness of the AlN wafer is 1400 nm. Furthermore, 500 nm PECVD SiO2 capping layer on top
UniversityWafer Inc of South Boston, MA, USA, along with its partners, has introduced a new line of 50.8mm, 100mm and 150mm UV-grade aluminium nitride (AlN) on c-plane single-side-polished (SSP) sapphire and AlN-on-silicon prime-grade for high-electron-mobility transistor (HEMT) templates.
A major use of AlN-on-sapphire are ultraviolet (UV) LEDs. Some of the most powerful applications include irradiating hospital rooms and foundry cleanrooms, since AlN-on-sapphire LEDs disinfect instruments and can purify air and water of germs and bacteria without using chemicals.
The electricity savings of using LEDs instead of traditional cold-cathode fluorescent lamps (CCFLs) can reach 70%. Also, unlike CCFLs, AlN LEDs do not contain mercury, allowing more environmentally friendly disposal. AlN LEDs can also be used for non-line-of-sight communications.
Currently, the newest-generation AlN-on-sapphire LEDs technology is approaching 50,000 hours of life, compared with just 10,000 hours for existing AlN-on-sapphire LEDs. The cost saving will only increase with time, adds the firm.
UniversityWafer says that it carries a large inventory of AlN-on-sapphire substrates, and can also quote unique client specs in small quantities that make it feasible for budget-strapped researchers to obtain the substrates at a reasonable cost. Delivery time is also short, notes the firm. UniversityWafer hence caters to researchers who want both small quantities and short lead-times, with staff trained to handle even the most difficult low-volume requests.
For production, AlN-on-sapphire can be ramped up to meet a client’s demands in a timely and affordable manner, UniversityWafer adds.
We also have a large selection of AlN on Silicon wafers. Recently a customer inquired:
Dia. 6‘’ 200nm thick AlN on Silicon wafer Surface roughness: <1nm