Aluminum Nitride on Sapphire Wafers for Research& Production

University Wafer Silicon Wafers and Semicondcutor Substrates Services
University Silicon Wafer for Production

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Recent AlN on Sapphire Wafer Sales

A researcher requested the following:

 I would like to enquire whether you can grow single-crystal Aluminum Nitride (AlN) onto Silicon <111> substrates. Preferably 6-inch wafers, but also 4-inch or 8-inch wafers would also be acceptable. The target thickness of the AlN wafer is 1400 nm. Furthermore, I would like to have a 500 nm PECVD SiO2 capping layer on top.

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


Aluminum Nitride on Sapphire

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.

aluminum nitride on sapphire

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.

Aluminum Nitride on Silicon

We also have a large selection of AlN on Silicon wafers. Recently a customer inquired:

I want to purchase AlN-on-Silicon wafers. Can you let me know the price of all types of the wafers you have in stock? This will help me to decide which type and how many I can buy. It is noted that the surface is polished. Can you let me know the roughness? This is very important as I plan to deposit some layers on top.

UniversityWafer quoted:

Dia. 6‘’ 200nm thick AlN on Silicon wafer Surface roughness: <1nm