Aluminum Nitride

Polished ceramic, quartz, high dielectric, sapphire, glass, fused silica, AlN and numerous other hard materials can be shipped from stock. Aluminum Nitride (AlN) features a high thermal conductivity of 170 W/mK, excellent dielectric properties, and a low thermal expansion similar to silicon.These characteristics make AlN ideal for electrically insulating nontoxic substrate material for hybrid, power and microwave electronics applications.

Aluminum Nitride Ceramic

Aluminum Nitride Ceramic is the perfect material choice when high thermal conductivity and electrical insulation properties are needed. Aluminum Nitride has a combination of high dielectric strengthening, high electrical insulation properties, and low thermal expansion.  AlN Aluminum Nitride is optimal for hybrid, power and microwave electronics applications where an electrically insulating nontoxic substrate material is required.  It is the ideal material for a wide variety of uses in the growing Semiconductor, Aerospace, Defense and Medical Industries.

Aluminum Nitride Advantages

The difference between Aluminum Nitride Ceramic material and other electrically insulative and sometimes thermally insulative is its unique ability to dissipate heat quickly while maintaining maximum efficiency. Aluminum Nitride’s thermal profile is similar to Silicon, making it a popular choice for semiconductor wafer processing applications.

Valley Design’s Aluminum Nitride products manage rapid heat buildup and offer the unique ability to dissipate heat in components such as heat sink spreaders and a wide variety of other electronic applications where high temperatures are often an issue. Aluminum Nitride substrates are perfect for power modules and LED applications.

Aluminum Nitirde (AlN) Key Thermal Properties

  • High Thermal Conductivity
  • Low Thermal Expansion
  • High Thermal Stability
  • Low Coefficient of Thermal Expansion
  • High Thermal Shock Resistance

Other Desirable Properties Of AlN

  • Good Dielectric properties
  • Good Chemical Resistance
  • Good Metallization Properties
  • Good Alternative material to Beryllium Oxide BeO (Hazardous material)
  • Good Plasma Resistance

Aluminum Nitride Mechanical, Thermal, 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

  • Circuit Boards
  • Double Sided Cooling
  • LED Applications / LED Ceramics
  • Heatsinks
  • Semiconductor Heaters
  • Microwave Device Packages
  • Optoelectronic Laser Substrate
  • IC Packaging
  • Chamber Fixture and Insulators
  • Sintering Trays
  • Sputtering Targets
  • Setter Plates
  • Power Transistor Bases
  • Chamber Rings
  • Circuit Carrier Substrates
  • Lasering Components
  • Rectifiers
  • Metallized AlN Substrates
  • Aluminum Nitride Ceramic Substrates
  • Thermal Management

Aluminum Nitride CNC Machining

Valley Design wants to be your Aluminum Nitride Supplier and Manufacturer.

We are Aluminum Nitride CNC Machining Specialists, with almost 50 years of experience Lapping, Polishing, Dicing, and Grinding and Machining Aluminum Nitride Ceramics.

We machine Aluminum Nitride Ceramic parts in the form of Ground, Lapped and Polished surface finishes:

  • Substrates
  • Plates
  • Wafers
  • Blocks
  • Shims
  • Chucks
  • Spacers
  • Complex Shapes
  • Rings

We also stock a large inventory of AlN material.  We have aluminum nitride blanks which may be lapped, polished, diced or CNC machined.  We also have 1,000’s of finished substrates of various sizes and thicknesses in stock.

Commonly stocked items are listed here.

Contact us for all your aluminum nitride ceramics needs.

AlN Aluminum Nitride Available for Immediate Delivery

Aluminum Nitride, Polished and As-fired Currently In Stock:

Some items may have notch or flat.

Please call or e-mail for details (pricing and availability may be subject to change)

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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