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    AI Overview
    Power Electronic Substrates - Corporate
    Alumina (
    Al2O3cap A l sub 2 cap O sub 3
    𝐴𝑙2𝑂3
    ) Direct Bond Copper (DBC) substrates are high-performance circuit boards featuring pure copper foil bonded to an alumina ceramic base at high temperatures ($\sim$1065°C - 1085°C). Widely used in power electronics, they combine superior heat dissipation, thermal conductivity (
    24
    W/mK
    ), and high electrical insulation with excellent mechanical strength, offering a cost-effective solution compared to Aluminum Nitride. 
    Key Features and Benefits 
    • Thermal Management: Efficient heat dissipation for high-power devices, reducing thermal stress, and offering improved reliability, often from manufacturers like Remtec and Stellar Industries.
    • Coefficient of Thermal Expansion (CTE): Matches well with silicon, reducing stress at the chip interface, note Heraeus Electronics.
    • Manufacturing: Fabricated through high-temperature oxidation of copper, followed by photo-etching for precise circuitry.
    • Durability: High mechanical strength and heat shock performance, suitable for rugged environments. 
    Applications 
    • Power Modules: Ideal for insulated-gate bipolar transistors (IGBTs) and mosfets.
    • Renewable Energy: Used in solar inverters and wind turbine power systems, says Rogers Corporation.
    • Industrial: Motor drives, automotive sensors, and high-power LED modules. 
    Common Specifications 
    • Material: Alumina (
      Al2O3cap A l sub 2 cap O sub 3
      𝐴𝑙2𝑂3
      ) of 96% or 95% purity.
    • Copper Thickness: Typically ranges from
      100
      𝜇𝑚
       to
      600
      𝜇𝑚
      .
    • Insulation Voltage: Commonly withstands over
      2.5
      kV
      .
    • Surface Finish: Available options include electroless nickel/immersion gold (ENIG) for improved solderability and wire bonding. 
    • Direct Bond Copper Substrates | Remtec
      DBC substrates are available on alumina or aluminum nitride. They can be used in high-power applications and can achieve better Co...
      Remtec
    • Condura®.classic and Condura®.extra – Standard and Zirconia-toughened Al2O3 DCB Substrates
      Direct Copper Bonding (DCB) substrates, also known as DBCs, are a standard for power electronic modules in industrial, home applia...
      Heraeus Electronics
    • Direct Bond Copper (DBC) Ceramic Substrate
      Jun 22, 2023 — IIII.Applications of DBC Ceramic Substrate DBC ceramic substrates have a wide range of applications, including high-power white LE...
      XIAMEN MASCERA TECHNOLOGY CO.,LTD.
    Show all
    • Direct Bond Copper Substrates | Remtec
      DBC substrates are available on alumina or aluminum nitride. They can be used in high-power applications and can achieve better Co...
      Remtec
    • Condura®.classic and Condura®.extra – Standard and Zirconia-toughened Al2O3 DCB Substrates
      Direct Copper Bonding (DCB) substrates, also known as DBCs, are a standard for power electronic modules in industrial, home applia...
      Heraeus Electronics
    • Direct Bond Copper (DBC) Ceramic Substrate
      Jun 22, 2023 — IIII.Applications of DBC Ceramic Substrate DBC ceramic substrates have a wide range of applications, including high-power white LE...
      XIAMEN MASCERA TECHNOLOGY CO.,LTD.
    • How DBC Ceramic Substrates Are Made: Process, Materials, and ...
      Apr 13, 2026 — The most common base of DBC ceramic substrates is alumina. It is effective in the majority of the standard power applications and ...
      ggsceramic.com
    • How DBC Ceramic Substrates Are Made: Process, Materials, and ...
      Apr 13, 2026 — How Is the DBC Ceramic Substrate Manufacturing Process Carried Out? * Step 1 : Ceramic Preparation. It begins by cutting out the c...
      ggsceramic.com
    • Order Reliable Alumina Substrates for Electronics - ATCERA
      Alumina substrate has excellent thermal conductivity and insulation, as well as with high mechanical strength and hardness, good h...
      Atcera.com
    • Why is Photo Etched Direct Bond Copper (DBC) Becoming so Popular?
      The most common ceramic is aluminum oxide, or alumina. For higher currents and heat dissipation, aluminum nitride is used. DBC cir...
      Conard Corporation.
    • Direct Bond Copper - Rogers Corporation
      Direct bond copper (DBC) substrates consist of a ceramic isolator, Al2O3 (aluminium oxide) or AlN (aluminium nitride), onto which ...
      Rogers Corporation
    • 3 Steps to Select the Right DBC / AMB Ceramic Substrate
      Jul 9, 2017 — and other parameters may limit the ratio copper thickness to ceramic thickness. but at least this is an option that may be worth c...
      3m
      YouTube·Rogers Corp. PES
    • Ceramic PCB and Substrate:Alumina PCB,Aluminum Nitride ...
      Jun 17, 2022 — rate 4.0 to 6.0 x 10 minus 6 c heat conductivity of aln is high as 260. wmk which is 5 8 times than al2o3. so it can bear heat to ...
      6m
      YouTube·RayPCB
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    Web results

    Direct Bond Copper & Active Metal Braze Substrates


    Remtec
    https://remtec.com › products › direct-bond-copper-subst...
    Remtec
    https://remtec.com › products › direct-bond-copper-subst...
    Remtec now offers Direct Bond Copper products on alumina and aluminum nitride, typically coupled with our high-quality Plated Copper on Thick Film plating ...

    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

    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.

    How DBC Ceramic Substrates Are Made: Process, Materials ...


    ggsceramic.com
    https://ggsceramic.com › News
    ggsceramic.com
    https://ggsceramic.com › News
    Apr 13, 2026 — It begins by cutting out the ceramic base. The most common materials are alumina (Al₂O₃) and aluminum nitride (AlN). The surface is checked on ...Read more

    DBC & AMB Power Electronic Substrates


    Ferrotec
    https://www.ferrotec.com › Products & Technologies
    Ferrotec
    https://www.ferrotec.com › Products & Technologies
    Our offering includes Active Metal Brazed (AMB) on Aluminum Nitride (AIN) or Silicon Nitride (Si3N4) and Direct Bond Copper (DBC) on Alumina or Aluminum Nitride ...Read more

    Why is Photo Etched Direct Bond Copper (DBC) Becoming ...


    Conard Corporation.
    https://www.conardcorp.com › Blog
    Conard Corporation.
    https://www.conardcorp.com › Blog
    Direct bond copper (DBC) is the go-to solution. The most widely used ceramic is aluminum oxide, or alumina, which has heat dissipating capacity up to about 48 w ...Read more
    Videos
    Direct Bonded Copper Ceramic Substrates (DBC)
    YouTube · WINTRUSTEK ADVANCED MATERIALS
    Feb 2, 2023
    YouTube · WINTRUSTEK ADVANCED MATERIALS
    0:18
    WINTRUSTEK ADVANCED MATERIALS
    YouTube·
    Feb 2, 2023

    Direct Bonded Copper Ceramic Substrates (DBC)

    YouTube·WINTRUSTEK ADVANCED MATERIALS·Feb 2, 2023
    YouTube
    3 Steps to Select the Right DBC / AMB Ceramic Substrate
    YouTube · Rogers Corp. PES
    Jul 9, 2017
    YouTube · Rogers Corp. PES
    21:11
    Learn 3 steps to select the right DBC/AMB ceramic substrate based on insulation voltage, heat dissipation, and reliability requirements.
    Rogers Corp. PES
    YouTube·
    Jul 10, 2017

    3 Steps to Select the Right DBC / AMB Ceramic Substrate

    YouTube·Rogers Corp. PES·Jul 10, 2017
    YouTube
    In this video
    • 00:01
      Intro
    • 01:09
      What are DBC and AMB?
    • 03:03
      Functions of DBC/AMB ceramic substrates
    • 04:42
      What is the required insulation voltage?
    • 07:06
      Rated voltage
    • 11:07
      Heat convection
    • 13:09
      Reduce the thickness of the ceramic
    • 14:50
      Reliability
    • 18:15
      Consider the mission profile and requirements regarding reliability
    • 19:30
      Material combinations for common applications
    Videos about What is Aln Al2O3 Alumina Dbc Substrate ...
    Made-in-China.com
    Jul 11, 2016
    Made-in-China.com
    0:27
    View all

    Web results

    APPENDIX A Direct Bond Copper (DBC) Ceramic Substrate


    VTechWorks
    https://vtechworks.lib.vt.edu › bitstream › handle
    VTechWorks
    https://vtechworks.lib.vt.edu › bitstream › handle
    PDF
    by X Liu · 2001 · Cited by 35 — Normally, DBC has two layers of copper that are directly bonded onto an aluminum-oxide (Al2O3) or aluminum-nitride (AlN) ceramic base. ... DBC ceramic substrates ...Read more
    3 pages

    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, Al2O3 (aluminium oxide) or AlN (aluminium nitride), onto which pure copper is bonded ...Read more

    The Alumina DBC Substrate Market is expected to continue ...


    LinkedIn
    3 weeks ago
    LinkedIn
    3 weeks ago
    The Alumina DBC Substrate Market is expected to continue its upward trajectory, with a projected CAGR of 11.5% over 2026-2033.Read more
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