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    AI Overview
    Metallized Al2O3 Alumina Ceramic PCB Direct Bond Copper ...
    Al
    2sub 2
    2
    O
    3sub 3
    3
     (Alumina) Direct Bond Copper (DBC) substrates are ceramic-metal composite materials where copper foil is directly bonded to an alumina ceramic base using a high-temperature eutectic process, offering excellent electrical insulation, high thermal conductivity, and structural strength for power electronics, IGBT modules, and automotive components. 
    Key Characteristics 
    • Structure: Typically copper-alumina-copper, where pure copper is bonded to
      Al2O3cap A l sub 2 cap O sub 3
      𝐴𝑙2𝑂3
       ceramic.
    • High Thermal Conductivity: Allows efficient heat dissipation from power devices, improving system reliability.
    • High Insulation Voltage: Generally withstands > 2.5 kV, suitable for high-voltage applications.
    • CTE Matching: The coefficient of thermal expansion (CTE) of
      Al2O3cap A l sub 2 cap O sub 3
      𝐴𝑙2𝑂3
       is close to silicon chips, reducing thermal stress and eliminating intermediate layers.
    • High Temperature Stability: Can withstand high operating temperatures, with studies showing reliability in cycling from
      -55∘negative 55 raised to the composed with power
      −55∘
      C to
      150∘150 raised to the composed with power
      150∘
      C.       
    Applications 
    • Power Semiconductor Modules: Ideal for IGBTs, MOSFETs, and high-power diodes.
    • Automotive Electronics: Used in electric vehicles and power control circuits.
    • Power Control Systems: Suitable for power converters and inverter systems.
    • Solid State Relays & Power Modules: Utilized for high-current applications. 
    Benefits of
    Al2O3cap A l sub 2 cap O sub 3
    𝑨𝒍𝟐𝑶𝟑
     DBC     
    • Reliability: Provides excellent mechanical strength and high current-carrying capacity.
    • Cost-Effective: Offers a high-performance-to-cost ratio, commonly used for its balance of efficiency and cost.
    • Simplified Packaging: Reduces the number of solder layers needed and lowers thermal resistance. 
    Alternatives
    While
    Al2O3cap A l sub 2 cap O sub 3
    𝐴𝑙2𝑂3
     is popular, aluminum nitride (AlN) or silicon nitride (
    Si3N4cap S i sub 3 cap N sub 4
    𝑆𝑖3𝑁4
    ) is often used for superior thermal performance (higher conductivity) or toughness, though they are usually more expensive. 
    Common Specifications 
    • Ceramic Thickness: Frequently
      0.38
      mm
       or
      0.635
      mm
      .
    • Copper Thickness: Commonly
      0.2
      mm
       to
      0.3
      mm
       (e.g.,
      0.20
      /0.38
      /0.20
      mm
       or
      0.3
      /0.64
      /0.3
      mm
      ).       
    • DBC substrate during thermal cycling test - ScienceDirect.com
      This paper presented failure mode and failure mechanism analysis of Al 2 O 3 -DBC substrate during thermal cycling ranged from −55...
      ScienceDirect.com
    • curamik Ceramic Substrates Product Information & Data Sheet
      curamik® high temperature/high voltage substrates consist of pure copper bonded to a ceramic substrate such as Al2O3 (Alumi- na), ...
      Rogers Corporation
    • Metalized Direct Bonding Copper(DBC) Al2O3/ZTA Ceramic sheet
      Direct Bond Copper (DBC) ceramic substrate is a new type of composite material in which highly insulating Alumina (Al2O3) or Alumi...
      Fujian Huaqing Electronic Material Technology Co.,Ltd
    Show all
    • DBC substrate during thermal cycling test - ScienceDirect.com
      This paper presented failure mode and failure mechanism analysis of Al 2 O 3 -DBC substrate during thermal cycling ranged from −55...
      ScienceDirect.com
    • curamik Ceramic Substrates Product Information & Data Sheet
      curamik® high temperature/high voltage substrates consist of pure copper bonded to a ceramic substrate such as Al2O3 (Alumi- na), ...
      Rogers Corporation
    • Metalized Direct Bonding Copper(DBC) Al2O3/ZTA Ceramic sheet
      Direct Bond Copper (DBC) ceramic substrate is a new type of composite material in which highly insulating Alumina (Al2O3) or Alumi...
      Fujian Huaqing Electronic Material Technology Co.,Ltd
    • Aluminium Oxide Substrates - Heraeus Electronics
      Discover a flexible DCB substrate that offers a great ratio of cost versus performance, with our aluminium oxide substrates for di...
      Heraeus Electronics
    • Wholesale Metalized Al2O3 Substrates Suppliers | CSCERAMIC
      Aluminum Oxide Metalized Substrate Ceramic Substrate DBC DPC Processed. Alumina ceramic metalized substrates are ceramic copper-cl...
      CS Ceramic Co.,Ltd
    • Analysis Report of DBC/DCB Substrate Al2O3 Yellowing - best PCB
      1) DBC-DCB Substrate Sintering Principle Al2O3-DBC/DCB substrates are substrates directly bonded by Al2O3 ceramic and copper at a ...
      best PCB
    • DBC Ceramic Substrates for Semiconductor Manufacturer
      * Product Description: DBC is a kind of composite line subgrade board that is directly sintered copper foil to ceramic surface by ...
      Fujian Huaqing Electronic Material Technology Co.,Ltd
    • Direct Bond Copper - Rogers Corporation
      Direct bond copper (DBC) substrates consist of a ceramic isolator, Al 2 O 3 (aluminium oxide) or AlN (aluminium nitride), onto whi...
      Rogers Corporation
    • Direct Bond Copper (DBC) Ceramic Substrate
      Jun 22, 2023 — The Al2O3 ceramic layer or AlN ceramic layer in the DBC substrate enhances the module's insulation capability (insulation voltage ...
      XIAMEN MASCERA TECHNOLOGY CO.,LTD.
    • What's DBC Ceramic PCB?-BSTCeramicPCB
      The Structure of DBC Ceramic PCB The DBC process yields a super-thin base and eliminates the need for the thick, heavy copper base...
      www.bstceramicpcb.com
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    Web results

    Standard and Zirconia-toughened Al2O3 DCB Substrates


    Heraeus Electronics
    https://www.heraeus-electronics.com › aluminium-oxid...
    Heraeus Electronics
    https://www.heraeus-electronics.com › aluminium-oxid...
    Discover a flexible DCB substrate that offers a great ratio of cost versus performance, with our aluminium oxide substrates for direct copper bonding.

    Direct Bond Copper


    Rogers Corporation
    https://www.rogerscorp.com › technical-expertise › direc...
    Rogers Corporation
    https://www.rogerscorp.com › technical-expertise › direc...
    Direct bond copper (DBC) substrates consist of a ceramic isolator, Al 2 O 3 (aluminium oxide) or AlN (aluminium nitride), onto which pure copper is bonded.Read more
    Missing: Al2O3 ‎| Show results with: Al2O3

    Metalized Alumina Substrate DBC DPC Ceramic Substrate


    Atcera.com
    https://www.atcera.com › Alumina Substrates
    Atcera.com
    https://www.atcera.com › Alumina Substrates
    Alumina ceramic metalized substrates are ceramic copper-clad plates with electrical conductivity, thermal conductivity, and high insulation properties, ...Read more

    Crack initiation and propagation mechanism of Al2O3-DBC ...


    ScienceDirect.com
    https://www.sciencedirect.com › science › article › pii
    ScienceDirect.com
    https://www.sciencedirect.com › science › article › pii
    by L Xu · 2020 · Cited by 31 — This paper presented failure mode and failure mechanism analysis of Al 2 O 3 -DBC substrate during thermal cycling ranged from −55 °C to 150 °C.Read more

    Direct Bond Copper (DBC) Ceramic Substrate


    XIAMEN MASCERA TECHNOLOGY CO.,LTD.
    https://www.mascera-tec.com › news › ceramic-substrat...
    XIAMEN MASCERA TECHNOLOGY CO.,LTD.
    https://www.mascera-tec.com › news › ceramic-substrat...
    Jun 22, 2023 — The Al2O3 ceramic layer or AlN ceramic layer in the DBC substrate enhances the module's insulation capability (insulation voltage > 2.5KV). 2.Read more

    Applications for Metallized Ceramic Substrates


    Rogers Corporation
    https://www.rogerscorp.com › blog › applications-for-m...
    Rogers Corporation
    https://www.rogerscorp.com › blog › applications-for-m...
    Oct 19, 2020 — The primary function of Al2O3 DBC substrates are to carry multiple chips, interconnect the chips to realize an electrical circuit and provide ...Read more

    Products - DBC Ceramic Substrate


    unipretec-ceramic.com
    https://www.unipretec-ceramic.com › Products
    unipretec-ceramic.com
    https://www.unipretec-ceramic.com › Products
    The Al2O3 ceramic layer or AlN ceramic layer in DBC substrate improves the module's insulation capability (insulation voltage >2.5KV). 2. High Thermal ...Read more
    People also ask
    What is Al2O3 substrate?
    An error has occurred. Please try again later.
    What is a DCB substrate?
    Direct Copper Bonding Substrates (also known as DCB, DDC, DBC or ceramic substrates) have long been a proven standard for power electronics modules in industry, automotive applications and household appliances due to their excellent thermal conductivity.

    Handling DBC Substrates| Applications & processes


    Pematech GmbH
    https://pematech.de › applications › handling-dbc-substra...
    Pematech GmbH
    https://pematech.de › applications › handling-dbc-substra...
    What is the price of Al2O3 substrate?
    Technical Alumina Al2O3 Powder, Packaging Type: Bottle at ₹ 5999/tonne in Ladwa.

    Technical Alumina Al2O3 Powder, Packaging Type: Bottle - IndiaMART


    IndiaMART
    https://www.indiamart.com › proddetail › alumina-al2o3...
    IndiaMART
    https://www.indiamart.com › proddetail › alumina-al2o3...
    What is CTE of alumina?
    An error has occurred. Please try again later.

    Web results

    DBC Substrates


    2innova.com
    https://files.2innova.com › innovacera-v2 › 2023/09
    2innova.com
    https://files.2innova.com › innovacera-v2 › 2023/09
    PDF
    DBC substrate, short for Direct Bonded. Copper substrate, is an advanced material composed of a ceramic substrate (typically. Al2O3 or AlN) and copper, tightly ...Read more
    6 pages

    Novel concepts for modelling and enhancing the DBC-Al 2 ...


    IEEE
    https://ieeexplore.ieee.org › document
    IEEE
    https://ieeexplore.ieee.org › document
    by P Gaiser · 2016 · Cited by 5 — DBC substrates are copper/ceramic/copper composites. They exhibit residual stresses after their bonding process caused by the CTE mismatch between copper and ...Read more

    DBC ceramic Substrate for power electronic Manufacturer


    Fujian Huaqing Electronic Material Technology Co.,Ltd
    https://www.huaqingcn.com › dbc-ceramic-substrate-for-...
    Fujian Huaqing Electronic Material Technology Co.,Ltd
    https://www.huaqingcn.com › dbc-ceramic-substrate-for-...
    Huaqing's AlN & Al2O3 ceramic products have high thermal-conductivity, low dielectric constant, good dissipation factor and excellent mechanical property ...Read more

    Scholarly articles for Al2O3 DBC Substrate

    … to improve the reliability of Al2O3–DBC substrates … - ‎Xu - Cited by 63
    Thermal fatigue behaviour of Al2O3-DBC substrates … - ‎Dong - Cited by 36
    … and propagation mechanism of Al2O3-DBC substrate … - ‎Xu - Cited by 31
    People also search for
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