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Aluminum Nitride (AlN) thick-film ceramic substrates are advanced electronic materials featuring exceptionally high thermal conductivity (
) and strong electrical insulation. They are ideal for high-power, high-frequency, and high-temperature applications (>
), such as LED packages, power semiconductors, and heaters. AlN offers a CTE (
) compatible with silicon, unlike Alumina.
Key Properties and Advantages
- Superior Thermal Management: AlN provides thermal conductivity 5-7 times higher than alumina, preventing device overheating.
- Electrical Insulation: High dielectric strength with a dielectric constant of 8.5โ9.0.
- Thermal Expansion Match: Low, stable CTE fits direct attachment of silicon chips.
- Robustness: High chemical resistance and 0% water absorption (hermetic).
- Non-toxic: Safe alternative to Beryllium Oxide (BeO).
Thick-Film Application and Metallization
- Paste Compatibility: Specific silver (Ag) or silver-palladium (Ag-Pd) pastes are required, as AlN relies on different adhesion mechanisms compared to alumina.
- Multilayer Capabilities:
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Web results
Aluminum nitride ceramic for thick-film substrate
Fujian Huaqing Electronic Material Technology Co.,Ltd
https://www.huaqingcn.com โบ aluminum-nitride-ceramic...
Fujian Huaqing Electronic Material Technology Co.,Ltd
https://www.huaqingcn.com โบ aluminum-nitride-ceramic...
Thick film substrates are electronic circuit boards generally made from Aluminum nitride(AlN) or Alumina ceramics. The Aluminum nitride or Alumina ceramic isย ...Read more
Morphology of thick film metallization on aluminum nitride ...
ScienceDirect.com
https://www.sciencedirect.com โบ article โบ abs โบ pii
ScienceDirect.com
https://www.sciencedirect.com โบ article โบ abs โบ pii
by P Zhang2015Cited by 34 โ Surface metallization of aluminum nitride is performed by a reactively thick film method. A layer of copper film is deposited on the surface of AlN ceramics.Read more
Aluminum Nitride: A Material for Thermal Management
Precision Ceramics
https://precision-ceramics.com โบ Ceramic Materials
Precision Ceramics
https://precision-ceramics.com โบ Ceramic Materials
Aluminum Nitride (AlN) is a technical ceramic material with properties that are ideal for thermal management and electrical applications.
AlN Substrate Ceramic: Everything You Should Know
bstceramicpcb.com
https://www.bstceramicpcb.com โบ industry-knowledge
bstceramicpcb.com
https://www.bstceramicpcb.com โบ industry-knowledge
An AlN substrate is a ceramic base material made from Aluminum Nitride, designed for electronic circuits that demand both thermal and electrical performanceย ...
Metallized AlN Ceramic | Edgetech Industries
eticeramics.com
https://www.eticeramics.com โบ products โบ metallized-aln-...
eticeramics.com
https://www.eticeramics.com โบ products โบ metallized-aln-...
The main metallization of aluminum nitride ceramics includes thick film metallization, thin film metallization, electroless plating metallization, and laserย ...Read more
Ceramic Core Aluminum Nitride (ALN) - Heatron
heatron.com
https://www.heatron.com โบ products--services โบ ceramic-...
heatron.com
https://www.heatron.com โบ products--services โบ ceramic-...
Precision engineered to fit tight spaces and tolerances, Thick Film AlN heaters are found in the most critical medical, aerospace and commercial applications.Read more
Aluminum Nitride (AlN) Substrates | Products
ๆ ชๅผไผ็คพMARUWA
https://www.maruwa-g.com โบ products โบ ceramic
ๆ ชๅผไผ็คพMARUWA
https://www.maruwa-g.com โบ products โบ ceramic
MARUWA Ceramics product Aluminum Nitride (AlN) Substrates ... *Various metalized processing is available (Thin film, Thick film, DBC, AMB, DPC, etc.).Read more
Aluminum Nitride (AlN) Sheet | Ceramic
Stanford Advanced Materials
https://www.samaterials.com โบ aluminum-nitride โบ 919-al...
Stanford Advanced Materials
https://www.samaterials.com โบ aluminum-nitride โบ 919-al...
May 10, 2025 โ Aluminum Nitride Sheets are new functional electronic ceramic materials. Stanford Advanced Materials is a trust-worthy supplier of Aluminum Nitride Sheets.Read more
Discussions and forums
Ceramic aluminum nitride TO220 insulators. thermal grease?
diyAudioย ยทย
4 years ago
Ceramic aluminum nitride TO220 insulators. thermal grease?
diyAudioย ยทย
4 years ago
Why addition of Aluminum Nitride (AlN) into the slip mixture can increase ...
ResearchGateย ยทย
6 answers
ย ยทย 8 years ago
Why addition of Aluminum Nitride (AlN) into the slip mixture can increase ...
ResearchGateย ยทย
6 answers
ย ยทย 8 years ago
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Web results
Aluminum Nitride (AlN) Ceramic Substrate | 170 W/m.K
MSE Supplies
https://www.msesupplies.com โบ products โบ aluminum-nit...
MSE Supplies
https://www.msesupplies.com โบ products โบ aluminum-nit...
Aluminum Nitride (AlN) Ceramic Substrate is made of high purity AlN ceramics. AlN is a white ceramic materials with excellent comprehensive properties.Read more
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