Aluminum Nitride (AlN)
Aluminum Nitride (AlN) is a high thermal conductivity, electrically insulating ceramic material with low thermal expansion, widely used in semiconductor, aerospace, defense, and medical industries for substrates, heat sinks, and electronic components, available in various sizes and finishes with CNC machining services for customized applications.
Aluminum Nitride (AIN) is a solid compound made of nitrogen and aluminum.
AIN’s high thermal conductivity is very efficient (generally up to 230W/(m-K), making it appropriate for heat dissipation applications. These applications are vital in automotive, electronics, industrial, aerospace, and medical fields. Its low thermal expansion characteristic is similar to that of silicon, making it an ideal material for electrically insulating, non-toxic substrate materials in hybrid, power, and microwave electronics applications. Additionally, AIN is a hard, durable material and is typically used in semiconductor substrates, heat sinks, and power electronics.
Aluminum Nitride Ceramic
Aluminum Nitride Ceramic is the ideal material choice when high thermal conductivity and electrical insulation are required. Aluminum Nitride offers a combination of high dielectric strength, excellent electrical insulation properties, and low thermal expansion. AlN is optimal for hybrid, power, and microwave electronics applications where an electrically insulating, non-toxic substrate material is needed. It is the perfect material for a wide range of uses in the growing semiconductor, aerospace, defense, and medical industries.
Aluminum Nitride Properties:
- Alternative material to Beryllium Oxide BeO (Hazardous material)
- Chemical Resistance
- Dielectric properties
- High Thermal Conductivity
- High Thermal Stability
- Low Coefficient of Thermal Expansion
- Low Thermal Expansion
- Metallization Properties
- Plasma Resistance
Aluminum Nitride Mechanical, Thermal, and Electrical Properties
| Mechanical |
Units of Measure |
SI/Metric |
Imperial |
| Density |
gm/cc (lb / ft3) |
3.26 |
(203.5) |
| Porosity |
% (%) |
0 |
0 |
| Color |
– |
Gray |
– |
| Flexural Strength |
Mpa (lb/in2 x 10 3) |
320 |
46.4 |
| Elastic Modules |
GPa (lb/in2 x 10 6) |
330 |
(47.8) |
| Bulk Modulus |
Gpa (lb/in2 x 10 6) |
– |
– |
| Poisson’s Ratio |
– |
0.24 |
(0.24) |
| Compressive Strength |
Mpa (lb/in2 x 10 3) |
2100 |
(304.5) |
| Hardness |
Kg/mm2 |
1100 |
– |
| Fracture Toughness Kic |
Mpa•m 1/2 |
2.6 |
– |
| Maximum Use Temperature (no load) |
C° (°F) |
– |
– |
| Thermal |
|
|
|
| Thermal Conductivity |
W/mK (BTU • in/ft2•hr•F) |
140 – 180 |
(970 – 1250) |
| Coefficient of Thermal Expansion |
10 -6 / °C (10-6 /°F) |
4.5 |
(2.5) |
| Specific Heat |
J/Kg•°K (Btu/lb•°F) |
740 |
(0.18) |
| Electrical |
|
|
|
| Dielectric Strength |
ac-kv/mm (volts/mil) |
17 |
(425) |
| Dielectric Constant |
1 @ MHz |
9 |
(9) |
| Dissipation Factor |
1 @ MHz |
0.0003 |
(0.0003) |
| Loss Tangent |
1 @ MHz |
– |
– |
| Volume Resistivity |
ohm • cm |
>10 14 |
– |
*All properties are room temperature values except as noted.
This data is representative of typical values of commercially available material and is for comparative purposes only. The values given are not to be interpreted as absolute properties of the material, nor will Valley assume any legal liability or warranty. The user shall determine the suitability of the material for its intended use and assumes all risk and liability.
Aluminum Nitride Products & Applications
- Aluminum Nitride Ceramic Substrates
- Chamber Fixture and Insulators
- Chamber Rings
- Circuit Boards
- Circuit Carrier Substrates
- Double-Sided Cooling
- Heatsinks
- IC Packaging
- Lasering Components
- LED Applications / LED Ceramics
- Metallized AlN Substrates
- Microwave Device Packages
- Optoelectronic Laser Substrate
- Power Transistor Bases
- Rectifiers
- Semiconductor Heaters
- Setter Plates
- Sintering Trays
- Sputtering Targets
- Thermal Management
Aluminum Nitride CNC Machining
With our 4 and 5-axis CNC equipment, Valley Design’s technicians are experts in CNC machining Aluminum Nitride, bringing 50 years of experience in lapping, polishing, dicing, grinding, and machining Aluminum Nitride ceramics. We produce Aluminum Nitride ceramic components with ground, lapped, and polished surface finishes.
Our machines can process the following:
- Blocks
- Chucks
- Complex Shapes
- Plates
- Rings
- Shims
- Spacers
- Substrates
- Wafers
We provide aluminum nitride blanks that can be lapped, polished, diced, or CNC machined to your specifications. Additionally, we have thousands of finished substrates available in various sizes and thicknesses, ready for shipment.
| Item # |
Geometry (“) |
Geometry (mm) |
Finish |
| AlN-201 |
4.5″ sq. x .040″ thk |
114.3mm sq. x 1.016mm thk |
AF |
| AlN-202 |
4.5″ sq. x .040″ thk |
114.3mm sq. x 1.016mm thk |
LBS |
| AlN-203 |
4.5″ sq. x .040″ thk |
114.3mm sq. x 1.016mm thk |
PBS |
| AlN-204 |
4.5″ sq. x .0295″ ± .0005″ thk |
114.3mm sq. x .7493mm ± .0127mm thk |
LBS |
| AlN-205 |
4.5″ sq. x .025″ thk |
114.3mm sq. x .635mm thk |
LBS |
| AlN-206 |
4.5″ sq. x .025″ thk |
114.3mm sq. x .635mm thk |
PBS |
| AlN-207 |
4.5″ sq. x .020″ thk |
114.3mm sq. x .508mm thk |
LBS |
| AlN-208 |
4.5″ sq. x .020″ thk |
114.3mm sq. x .508mm thk |
PBS |
| AlN-209 |
4.5″ sq. x .015″ thk |
114.3mm sq. x .381mm thk |
PBS |
| AlN-210 |
4.5″ sq. x .010″ thk |
114.3mm sq. x .254mm thk |
PBS |
| AlN-211 |
4.5″ x 3.75″ x .040″ thk |
114.3mm x 95.25mm x 1.016mm thk |
PBS |
| AlN-212 |
4.5″ x 3.75″ x .036″ thk |
114.3mm x 95.25mm x .9144mm thk |
AF |
| AlN-213 |
4.5″ x 3.75″ x .028″ thk |
114.3mm x 95.25mm x .7112mm thk |
AF |
| AlN-214 |
4.5″ x 3.75″ x .025″ thk |
114.3mm x 95.25mm x .635mm thk |
LBS |
| AlN-215 |
4.5″ x 3.75″ x .025″ thk |
114.3mm x 95.25mm x .635mm thk |
PBS |
| AlN-216 |
4.5″ x 3.75″ x .020″ thk |
114.3mm x 95.25mm x .508mm thk |
LBS |
| AlN-217 |
4.5″ x 3.75″ x .020″ thk |
114.3mm x 95.25mm x .508mm thk |
PBS |
| AlN-218 |
4.5″ x 3.75″ x .015″ thk |
114.3mm x 95.25mm x .381mm thk |
LBS |
| AlN-219 |
4.5″ x 3.75″ x .015″ ± .0005″ thk |
114.3mm x 95.25mm x .381mm ± .0127mm thk |
PBS |
| AlN-220 |
4.5″ x 3.75″ x .010″ thk |
114.3mm x 95.25mm x .254mm thk |
PBS |
| AlN-221 |
3.94″ dia.w/flat x .040″ thk |
100.076mm dia.w/flat x 1.016mm thk |
PBS |
| AlN-222 |
3.94″ dia.w/flat x .025″ thk |
100.076mm dia.w/flat x .635mm thk |
PBS |
| AlN-223 |
3.94″ dia.w/flat x .020″ thk |
100.076mm dia.w/flat x .508mm thk |
PBS |
| AlN-224 |
3.94″ dia.w/flat x .015″ thk |
100.076mm dia.w/flat x .381mm thk |
PBS |
| AlN-225 |
3.94″ dia.w/flat x .010″ thk |
100.076mm dia.w/flat x .254mm thk |
PBS |
| AlN-226 |
3″ dia.w/flat x .040″ thk |
76.2mm dia.w/flat x 1.016mm thk |
PBS |
| AlN-227 |
3″ dia.w/flat x .025″ thk |
76.2mm dia.w/flat x .635mm thk |
PBS |
| AlN-228 |
3″ dia.w/flat x .020″ thk |
76.2mm dia.w/flat x .508mm thk |
PBS |
| AlN-229 |
3″ dia.w/flat x .015″ thk |
76.2mm dia.w/flat x .381mm thk |
PBS |
| AlN-230 |
3″ dia.w/flat x .010″ thk |
76.2mm dia.w/flat x .254mm thk |
PBS |
| AlN-231 |
3″ sq. x .040″ ± .0005″ thk |
76.2mm sq. x 1.016mm ± .0127mm thk |
PBS |
| AlN-232 |
3″ sq. x .025″ ± .0005″ thk |
76.2mm sq. x .635mm ± .0127mm thk |
PBS |
| AlN-233 |
3″ sq. x .020″ ± .0005″ thk |
76.2mm sq. x .508mm ± .0127mm thk |
PBS |
| AlN-234 |
3″ sq. x .015″ ± .0005″ thk |
76.2mm sq. x .381mm ± .0127mm thk |
PBS |
| AlN-235 |
3″ sq. x .010″ ± .0005″ thk |
76.2mm sq. x .254mm ± .0127mm thk |
PBS |
| AlN-236 |
2″ sq. x .125″ thk |
50.8mm sq. x 3.175mm thk |
PBS |
| AlN-237 |
2″ sq. x .100″ thk |
50.8mm sq. x 2.54mm thk |
PBS |
| AlN-238 |
2″ sq. x .080″ thk |
50.8mm sq. x 2.032mm thk |
PBS |
| AlN-239 |
2″ sq. x .060″ thk |
50.8mm sq. x 1.524mm thk |
PBS |
| AlN-240 |
2″ sq. x .040″ thk |
50.8mm sq. x 1.016mm thk |
PBS |
| AlN-241 |
2″ sq. x .025″ thk |
50.8mm sq. x .635mm thk |
PBS |
| AlN-242 |
2″ sq. x .020″ thk |
50.8mm sq. x .508mm thk |
PBS |
| AlN-243 |
2″ sq. x .015″ thk |
50.8mm sq. x .381mm thk |
PBS |
| AlN-244 |
2″ sq. x .010″ thk |
50.8mm sq. x .254mm thk |
PBS |
| AlN-245 |
2″ sq. x .005″ thk |
50.8mm sq. x .127mm thk |
PBS |
| AlN-246 |
2″ sq. x .125″ thk |
50.8mm sq. x 3.175mm thk |
LBS |
| AlN-247 |
2″ sq. x .100″ thk |
50.8mm sq. x 2.54mm thk |
LBS |
| AlN-248 |
2″ sq. x .080″ thk |
50.8mm sq. x 2.032mm thk |
LBS |
| AlN-249 |
2″ sq. x .060″ thk |
50.8mm sq. x 1.524mm thk |
LBS |
| AlN-250 |
2″ sq. x .040″ thk |
50.8mm sq. x 1.016mm thk |
LBS |
| AlN-251 |
2″ sq. x .025″ thk |
50.8mm sq. x .635mm thk |
LBS |
| AlN-252 |
2″ sq. x .020″ thk |
50.8mm sq. x .508mm thk |
LBS |
| AlN-253 |
2″ sq. x .015″ thk |
50.8mm sq. x .381mm thk |
LBS |
| AlN-254 |
2″ sq. x .010″ thk |
50.8mm sq. x .254mm thk |
LBS |
| AlN-255 |
2″ sq. x .005″ thk |
50.8mm sq. x .127mm thk |
LBS |
| AlN-256 |
1″ sq. x .040″ thk |
25.4mm sq. x 1.016mm thk |
PBS |
| AlN-257 |
1″ sq. x .025″ thk |
25.4mm sq. x .635mm thk |
PBS |
| AlN-258 |
1″ sq. x .020″ thk |
25.4mm sq. x .508mm thk |
PBS |
| AlN-259 |
1″ sq. x .015″ thk |
25.4mm sq. x .381mm thk |
PBS |
| AlN-260 |
1″ sq. x .010″ thk |
25.4mm sq. x .254mm thk |
PBS |
| AlN-261 |
1″ sq. x .005″ thk |
25.4mm sq. x .127mm thk |
PBS |
| AlN-262 |
1″ sq. x .003″ thk |
25.4mm sq. x .0762mm thk |
PBS |
| AlN-263 |
1″ sq. x .040″ thk |
25.4mm sq. x 1.016mm thk |
LBS |
| AlN-264 |
1″ sq. x .025″ thk |
25.4mm sq. x .635mm thk |
LBS |
| AlN-265 |
1″ sq. x .020″ thk |
25.4mm sq. x .508mm thk |
LBS |
| AlN-266 |
1″ sq. x .015″ thk |
25.4mm sq. x .381mm thk |
LBS |
| AlN-267 |
1″ sq. x .010″ thk |
25.4mm sq. x .254mm thk |
LBS |
| AlN-268 |
1″ sq. x .005″ thk |
25.4mm sq. x .127mm thk |
LBS |
| AlN-269 |
1″ sq. x .003″ thk |
25.4mm sq. x .0762mm thk |
LBS |
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