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    AI Overview
    High-Density Thick Film Substrates | Remtec
    Aluminum Nitride (AlN) thick-film ceramics are advanced substrates and components utilized for high-power electronics and extreme environments, offering high thermal conductivity (
    170
    –
    320
    W/m
    ⋅K
    ), matched coefficient of thermal expansion (CTE) with silicon, and excellent electrical insulation. These materials are commonly processed with thick film pastes to create reliable resistors, sensors, and power circuits that dissipate heat more efficiently than alumina. 
    Key Features and Applications 
    • Superior Thermal Management: AlN's high thermal conductivity (170–200 W/mK) significantly outperforms traditional alumina (
      Al2
      O3
      ) or glass epoxy, making it ideal for high-power applications.
    • CTE Matching: The thermal expansion coefficient is close to that of silicon, reducing mechanical stress in power packaging.
    • High-Temperature Functionality: AlN thick-film components, such as accelerometers, can function efficiently in harsh environments up to
      600∘C600 raised to the composed with power C
      600∘C
      .
    • Applications: Key uses include ceramic heat sinks, power circuits, high-frequency circuits, sensors, and microwave components, often for industrial or military applications. 
    Thick Film Processing 
    • Metallization: AlN surfaces are metallized using specialized thick film inks or copper plating, designed to manage the interfacial adhesion between the conductive layer and the AlN substrate.
    • Printing & Firing: Thick film pastes (conductors, resistors) are screen-printed onto the AlN substrate, followed by firing to create robust circuits.
    • Performance: These circuits, often utilizing resistor ink, can maintain stability in severe environmental conditions. 
    Key Advantages 
    • High Thermal Conductivity: Reduces the operating temperature of electronic components, enhancing reliability.
    • Superior Durability: High mechanical strength and excellent electrical insulation.
    • High-density Circuits: Allows for 6–8 conductor layers and multilayer structures for advanced power density. 
    Comparison with Other Materials 
    • Unlike standard Alumina (
      20
      –
      30
      W/m
      ⋅K
      ), AlN provides superior, high-speed heat dissipation.
    • AlN is suitable for higher-performance, high-density, and high-frequency applications compared to alumina. 
    Commonly available Ohmite AlN series thick film chips are used for high-power, space-constrained, and high-temperature environments. 
    • Interfacial adhesion and microstructure of thick film metallized ...
      Surface metallization of aluminum nitride is performed by a reactively thick film method. A layer of copper film is deposited on t...
      ScienceDirect.com
    • ALN Series | Ohmite Mfg Co
      The ALN series is a thick film chip that uses an Aluminum Nitride (AlN) substrate to dissipate heat. AlN dissipates heat more effi...
      Ohmite
    • Aluminum nitride ceramic for thick-film substrate Manufacturer
      Product Description: Thick film substrates are electronic circuit boards generally made from Aluminum nitride(AlN) or Alumina cera...
      Fujian Huaqing Electronic Material Technology Co.,Ltd
    Show all
    • Interfacial adhesion and microstructure of thick film metallized ...
      Surface metallization of aluminum nitride is performed by a reactively thick film method. A layer of copper film is deposited on t...
      ScienceDirect.com
    • ALN Series | Ohmite Mfg Co
      The ALN series is a thick film chip that uses an Aluminum Nitride (AlN) substrate to dissipate heat. AlN dissipates heat more effi...
      Ohmite
    • Aluminum nitride ceramic for thick-film substrate Manufacturer
      Product Description: Thick film substrates are electronic circuit boards generally made from Aluminum nitride(AlN) or Alumina cera...
      Fujian Huaqing Electronic Material Technology Co.,Ltd
    • High-Density Thick Film Substrates | Remtec
      Remtec designs and manufactures thick film multilayer ceramic circuits for military, avionics, space, and industrial applications.
      Remtec
    • Thick Film Resistors on Aluminum Nitride Ceramics (AlN)
      Aluminum nitride ceramics are very suitable as substrate material for thick film- / hybrid applications in the field of power elec...
      IMAPSource Proceedings
    • Fabrication and characterization of high-temperature AlN thick-film ...
      Nov 15, 2024 — Besides, the utilization of stainless steel as the substrate can effectively enhance the fracture toughness of the accelerometer u...
      ScienceDirect.com
    • AlN Substrate Ceramic: Everything You Should Know
      AlN is a ceramic base material designed for electronic circuits that require both thermal and electrical performance. It has a num...
      www.bstceramicpcb.com
    • Aluminum Nitride (AlN) Ceramic Material - Goodfellow
      This ceramic material, available in various forms, is renowned for its exceptional thermal conductivity combined with excellent el...
      Goodfellow Advanced Materials
    • AlN /Aluminum-nitride - gorgeous ceramics (ggs)
      Apr 24, 2024 — Aluminum nitride ceramics are made of aluminum nitride (AlN) sintered at high temperature. The molecular formula of aluminum nitri...
      ggsceramic.com
    • Aluminum Nitride Sheet | Advanced Ceramics | Edgetech Industries
      Why Choose Aluminum Nitride Sheet? AlN ceramic substrates outperform conventional materials with: Superior Heat Dissipation – Prev...
      www.eticeramics.com
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    Aluminum nitride ceramic for thick-film substrate


    Fujian Huaqing Electronic Material Technology Co.,Ltd
    https://www.huaqingcn.com › aluminum-nitride-ceramic...
    Fujian Huaqing Electronic Material Technology Co.,Ltd
    https://www.huaqingcn.com › 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 is ...Read more

    ALN Series | Ohmite Mfg Co


    Ohmite
    https://www.ohmite.com › Product Collections
    Ohmite
    https://www.ohmite.com › Product Collections
    The ALN series thick film chips offer 3.5 watts of power dissipation in a 2512 package size. This is accomplished with the use of an Aluminum Nitride substrate.Read more

    AlN Substrate Ceramic: Everything You Should Know


    bstceramicpcb.com
    https://www.bstceramicpcb.com › industry-knowledge
    bstceramicpcb.com
    https://www.bstceramicpcb.com › industry-knowledge
    An AlN substrate is a ceramic base material made from Aluminum Nitride, designed for electronic circuits that demand both thermal and electrical performance ...

    Morphology of thick film metallization on aluminum nitride ...


    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    by P Zhang · 2015 · Cited by 34 — 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

    Metallized AlN Ceramic | Edgetech Industries


    eticeramics.com
    https://www.eticeramics.com › products › metallized-aln-...
    eticeramics.com
    https://www.eticeramics.com › products › metallized-aln-...
    The main metallization of aluminum nitride ceramics includes thick film metallization, thin film metallization, electroless plating metallization, and laser ...Read more
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    Is AlN a ceramic?
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    Explain its high thermal conductivity
    Describe its electrical insulation properties
    List common applications of AlN ceramics
    Which is better ceramic or thick-film resistor?
    Unlike thick film, ceramic resistors do not perform well in high-temperature applications and are generally not suitable for heatsink applications. The power watt density (amount of heat dissipated per unit area) of a thick film power resistor is far superior to ceramic.Mar 31, 2021

    Ceramic vs Thick Film Power Resistors - A Comparison - TSEC Ltd


    TSEC Ltd
    http://www.tsec.ltd.uk › ceramic-vs-thick-film-power-resi...
    TSEC Ltd
    http://www.tsec.ltd.uk › ceramic-vs-thick-film-power-resi...
    What is thick-film used for?
    Thick Film technology is used across a range of applications, including heating elements, sensors, and surface mount device modules. They are ideal for use in harsh environments as Thick Film Hybrids can withstand a wider temperature range and have better durability than conventional PCB assemblies.

    What is Thick-Film Technology? - HLT Shearline - Hybrid Laser Tech


    Hybrid Laser Tech
    https://hlt.co.uk › news › what-is-thick-film-technology
    Hybrid Laser Tech
    https://hlt.co.uk › news › what-is-thick-film-technology
    What are the disadvantages of aluminum nitride?
    While aluminum nitride is robust in thermal and dielectric contexts, it is brittle when subjected to mechanical stress. This renders processing more difficult when it is produced. Furthermore, the small substrate sizes now available make mass applications less frequent.Aug 4, 2025

    Advantages and Disadvantages of Aluminum Nitride Single Crystal ...


    Stanford Advanced Materials
    https://www.samaterials.com › blog › advantages-and-dis...
    Stanford Advanced Materials
    https://www.samaterials.com › blog › advantages-and-dis...

    Web results

    Thick Film Resistors on Aluminum Nitride Ceramics (AlN)


    IMAPSource Proceedings
    https://imapsource.org › article › 56428-influence...
    IMAPSource Proceedings
    https://imapsource.org › article › 56428-influence...
    PDF
    Aluminum nitride ceramics are very suitable as substrate material for thick film- / hybrid applications in the field of power electronics and microwave ...Read more

    High-Density Thick Film Substrates


    Remtec
    https://remtec.com › products › high-density-thick-film-s...
    Remtec
    https://remtec.com › products › high-density-thick-film-s...
    Remtec designs and manufactures cost-effective, high-performance thick film multilayer ceramic circuits in low, medium, and high volumes.

    Aluminum Nitride (AlN) Ceramic Material


    Goodfellow Advanced Materials
    https://www.goodfellow.com › Material › Ceramics
    Goodfellow Advanced Materials
    https://www.goodfellow.com › Material › Ceramics
    This ceramic material, available in various forms, is renowned for its exceptional thermal conductivity combined with excellent electrical insulation properties ...Read more
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    etched thick film ceramics


    TTM Technologies
    https://www.ttm.com › default › files › documents
    TTM Technologies
    https://www.ttm.com › default › files › documents
    PDF
    This thick film capability allows for multilayer substrates that create lower cost microwave circuitry featuring high precision capability, including: etched.Read more
    16 pages

    Aluminum Nitride (AlN) Substrates | Products


    株式会社MARUWA
    https://www.maruwa-g.com › products › ceramic
    株式会社MARUWA
    https://www.maruwa-g.com › products › ceramic
    MARUWA has started to produce Aluminum Nitride (AlN) substrates since 1985 and has developed its performance. With both extremely high thermal conductivity.Read more
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