Aluminum Nitride (AlN) Substrates

university wafer substrates

AlN Wafers For Product Development

A ceramics manufacturer requested a quote for the following:

We are looking for a few AlN wafers of 4" dia, thickness of ~ 75-100um (3-4 mil), at least single side polished. The intended use is for new product development. Please let me know if material with such specifications is available and approximate cost.

Reference #104586 for specs and pricing.

Get Your FAST! Or, Buy Online and Start Researching Today!





CAPTCHA Image

Budgetary Quote For AlN/Al2O3 Substrates

A PhD candidate requested a quote for the following:

We need a budgetary Quote for .5um-5um GaN Qty 100 on: 1. Sapphire 2. AlN/SiC 3. AlN/Al2O3 Thanks

Reference #91647 for specs and pricing.

AlN Substrates For Testing

I am looking for GaN, AlN, and AlGaN wafers on silicon, on carbide, on Al2O3, and on saphire (if available). In particular, I am looking for 'dirty' wafers from 'bad' runs in addition to good ones.

UniversityWafer, Inc. Quoted:

2" GaN on Sapphire (2" Undoped, 17-25 um, Research Grade)
3" GaN on Sapphire (3", Si doped, 3-7 um, Research Grade)
Lowest Grade GaN (2" w/ 4.5um GaN on Sapphire)

Reference #101044  for specs and pricing.

AlN Epilayer

A materials science engineer requested a quote for the following:

Could you please let us know is it possible to buy from you GaN/AlN epilayer (GaN thickness >1 micrometer, GaN on top of AlN) on SiC or saphire substrate. 

UniversityWafer, Inc. Quoted:

Epitaxial structure on single side polished Sapphire substrate, 2” diameter, consisting of:

Layer 1 – AlN layer, 0.015-0.025 microns thickness,
Layer 2 (top layer) - GaN undoped, 1.5 – 3.0 micron thickness.

Reference #115407 for specs and quantity.

Not Intentionally Doped AlN Substrates

A postdoc requested a quote for the following:

I need a few micron thick (say 2 microns to 8 microns) GaN layer on AlN or AlGaN on sapphire for transport measurements. N-type native doping (i.e. not intentionally doped). Wafer size not important, so to keep down cost a smaller wafer size is preferable.

UniversityWafer, Inc. Quoted:

What we can offer: GaN free-standing wafer
GaN on Sapphire template.
GaN on Sapphire epiwafer.

Reference #117102 for specs and pricing.

 

Epitaxially Grown AlN Thin Films On SOI Wafer

A PhD candidate requested a quote for the following:

I am writing this email to inquire about the quotation for a specific wafer type. We are in need of Epitaxially grown AlN thin films on SOI wafer. I would like to request a quote for the following specs wafers: wafer size: 4" or 6" AlN thickness: 1um and 1.5um Si thickness: 260nm and 2um SiO2 thickness: 1um and 2um on Si substrate. Please send us a detailed quotation with the minimum number of wafers to be bought.

UniversityWafer, Inc. Quoted:

Pls see below for the offer on required AlN deposited SOI Wafer

AlN thin films on SOI wafer

1. wafer size: 6" AlN thickness: 1um, Si thickness: 260nm,SiO2 thickness: 1um on Si substrate.
2. wafer size: 6" AlN thickness: 1.5um, Si thickness: 2um SiO2 thickness: 2um on Si substrate.

Reference #94688 for specs and pricing.

What Is AlN on Sapphire?

Aluminum Nitride (AlN) on sapphire is a material combination commonly used in various high-tech applications, particularly in the semiconductor and optoelectronic industries. Here’s a detailed breakdown:

What is AlN?

Aluminum Nitride (AlN) is a ceramic material with excellent thermal conductivity, electrical insulation, and high-temperature stability. It is known for its wide bandgap, which makes it useful in high-frequency and high-power electronic devices.

What is Sapphire?

Sapphire, or crystalline aluminum oxide (Al2O3), is a highly durable material with excellent optical properties, such as transparency in the visible to ultraviolet range. It also has high thermal stability and chemical resistance.

AlN on Sapphire

Combining AlN with sapphire substrates is beneficial for several reasons:

  1. Lattice Matching: AlN has a hexagonal crystal structure that can be matched relatively well with the hexagonal structure of sapphire. This lattice matching helps in the epitaxial growth process, reducing defects and improving the quality of the AlN layer.

  2. Thermal Conductivity: Both AlN and sapphire have high thermal conductivity, which is crucial for dissipating heat in high-power electronic devices.

  3. Optical Applications: AlN on sapphire is often used in optoelectronics, including UV LEDs, because sapphire is transparent to a wide range of wavelengths.

  4. Mechanical Strength: Sapphire provides a robust and stable substrate for AlN, ensuring the durability of the devices made from this combination.

Applications

  • High-Frequency Electronics: Used in RF components and microwave devices.
  • Optoelectronics: Utilized in LEDs, especially those emitting in the UV range.
  • Power Electronics: Suitable for devices that require efficient heat dissipation.
  • Sensors: Used in various types of sensors due to its stability and sensitivity.

Overall, AlN on sapphire is a versatile material system used in cutting-edge technologies due to its superior thermal, electrical, and mechanical properties.

What Is Aluminum Nitride (AlN) Used For?

Aluminum Nitride (AlN) is used in a variety of applications due to its excellent thermal, electrical, and mechanical properties. Here are some of the key uses:

1. Electronics and Semiconductors

  • Heat Sinks and Substrates: AlN's high thermal conductivity makes it ideal for heat dissipThese images demonstrate how the lattice structures of both materials align, facilitating epitaxial growth, reducing defects, and improving the quality of the AlN layer.ation in electronic devices, such as power transistors, LEDs, and integrated circuits.
  • Microelectronics: Used as a substrate material for high-frequency and high-power devices due to its insulating properties and thermal management capabilities.

2. Optoelectronics

  • LEDs: Particularly in UV LEDs, AlN is used because of its wide bandgap and ability to efficiently dissipate heat, improving performance and longevity.
  • Laser Diodes: AlN can serve as a substrate for laser diodes, aiding in thermal management and stability.

3. Power Electronics

  • Power Transistors: Used in high-power and high-temperature applications due to its ability to withstand high voltages and efficiently manage heat.
  • Power Modules: AlN substrates are common in power modules, providing thermal and electrical insulation.

4. RF and Microwave Devices

  • Filters and Resonators: Its high dielectric constant and low loss tangent make AlN suitable for RF (radio frequency) and microwave components.
  • Antenna Components: Used in high-frequency antennas due to its stable dielectric properties.

5. Sensors and Actuators

  • MEMS Devices: In micro-electromechanical systems (MEMS), AlN is used for sensors and actuators because of its piezoelectric properties.
  • Pressure Sensors: AlN's robustness and sensitivity make it ideal for use in high-performance pressure sensors.

6. Optical Applications

  • Window Material: AlN is used in optical windows and lenses due to its transparency in the UV to infrared range and its high thermal conductivity.
  • Waveguides: Used in optical waveguides and photonic devices for efficient light transmission and thermal management.

7. Thermal Management

  • Heat Spreaders: AlN is used as a material for heat spreaders in electronic devices to enhance thermal performance and reliability.
  • Thermal Interface Materials: Used in thermal interface materials (TIMs) to improve heat transfer between electronic components and heat sinks.

8. Aerospace and Defense

  • High-Temperature Applications: AlN is employed in aerospace and defense applications where materials must withstand extreme temperatures and thermal cycling.

Aluminum Nitride's unique combination of properties—high thermal conductivity, electrical insulation, mechanical strength, and chemical stability—makes it a valuable material in a wide range of advanced technological applications.