Aluminum Nitride (AlN)
Verifiedsemiconductor· AlN· Aluminum Nitride
Aluminum Nitride (AlN) is a wide-bandgap semiconductor ceramic compound combining aluminum and nitrogen in a 1:1 stoichiometry, belonging to the III-V nitride family alongside GaN and InN. It is primarily used in high-power electronics and optoelectronics where excellent thermal conductivity combined with electrical insulation is critical—such as in LED substrates, power device packaging, and RF/microwave components for telecommunications and defense applications. Engineers select AlN over alternatives like alumina when thermal management of semiconductor junctions is paramount, and over GaN when electrical isolation rather than conductivity is required.
LED thermal substratesRF/microwave packagingHigh-power electronics coolingPiezoelectric devicesSemiconductor heat spreadersOptoelectronic device mounting
Compliance & Regulations
?EAR?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Young's Modulus(E) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Melting Point / Solidus(Tm) | — | °F | — | — | |
Specific Heat Capacity(Cp) | — | BTU/(lb·°F) | — | — | |
Thermal Conductivity(k) | — | BTU/(hr·ft·°F) | — | — | |
Coefficient of Thermal Expansion(α (CTE)) | — | µin/in·°F | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Dielectric Constant (Relative Permittivity)(εr) | — | - | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
Safety & Biocompatibility
Quality & Standards
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.