FreeWill Material Technical Ceramics

DBC Product Family

DBC Ceramic Substrates

FreeWill Material ceramic substrates and power module thermal-management assembly

Direct-bonded copper ceramic substrates for established thick-copper, high-current power circuits and thermal-management assemblies.

Product Family Portfolio

DBC Ceramic Substrate Products

Select a product route for detailed application and drawing-review guidance.

5 products

AlN Copper-Clad DBC Substrates for Thermoelectric Modules product overview

DBC Ceramic Substrate Products

AlN Copper-Clad DBC Substrates for Thermoelectric Modules

AlN DBC substrates for thermoelectric modules requiring thick copper, electrical insulation and efficient heat transfer.

Typical application directions

Thermoelectric Modules · Power Electronics

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Double-Sided Copper-Clad DBC Substrates product overview

DBC Ceramic Substrate Products

Double-Sided Copper-Clad DBC Substrates

Double-sided DBC ceramic substrates for established high-current power layouts and thermal-management assemblies.

Typical application directions

Power Modules · Industrial Drives

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Direct-Bonded Copper Substrates for Thick-Film Circuits product overview

DBC Ceramic Substrate Products

Direct-Bonded Copper Substrates for Thick-Film Circuits

DBC substrates for thick-film power circuits requiring robust bonded copper and electrical insulation.

Typical application directions

Thick-Film Power Circuits · Hybrid Electronics

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Direct-Bonded Copper DBC Metallized AlN Substrates product overview

DBC Ceramic Substrate Products

Direct-Bonded Copper DBC Metallized AlN Substrates

AlN DBC substrates for high-current circuits where bulk heat transfer and electrical insulation are primary constraints.

Typical application directions

IGBT Modules · Power Inverters

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Direct-Bonded Copper DBC Metallized Alumina Substrates product overview

DBC Ceramic Substrate Products

Direct-Bonded Copper DBC Metallized Alumina Substrates

Alumina DBC substrates for mature thick-copper power circuits and cost-balanced electronic assemblies.

Typical application directions

Industrial Power Modules · Motor Drives

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DBC Technology

DBC — Direct Bonded Copper

Copper foil bonded to alumina or AlN for high-current, thermally robust circuits.

Thick-copper power circuits

DBC — Direct Bonded Copper

Copper foil bonded to alumina or AlN for high-current, thermally robust circuits.

  • 0.10–0.30 mm copper reference
  • Power electronics

Additional Metallization Options

Select other routes when copper-clad technology is not the right fit.

These technologies remain distinct from DBC, DPC and AMB.

  • Thick-Film Metallization
  • Thin-Film Metallization
  • Mo-Mn Metallization
  • Pattern Etching
  • Photolithography
  • Plating / Surface Finish
  • Custom Circuit Geometry

DBC Specifications

DBC for established high-current circuits.

Line/space and overall size depend on copper thickness, ceramic and circuit geometry.

ItemWebsite referenceCondition
Ceramic base96% Al2O3 or AlNRoute dependent
Ceramic thickness0.25–1.0 mm referenceSelected combinations
Copper thickness0.10–0.30 mmOther combinations on request
Line / space0.30 / 0.30 mm conservative starting referenceDepends on copper thickness and geometry
Surface finishBare/protected Cu; selected Ni, Ni/Au or AgAssembly-process dependent
Bond / peel testingAvailable to agreed specificationTest method and geometry must be defined

Configuration Scope

DBC configurations reviewed by drawing.

Ceramic base, copper system, circuit layout, finish and qualification requirements are reviewed together.

  • Alumina DBC Substrates
  • Aluminum Nitride DBC Substrates
  • Single- and Double-Sided Copper
  • Custom Thick-Copper Circuits

Typical Applications

DBC substrate application directions.

Application examples guide initial selection; final construction and acceptance criteria follow drawing review.

  • IGBT Power Modules
  • MOSFET Power Modules
  • Industrial Drives
  • Power Inverters

Technology Selection

DBC vs DPC vs AMB.

Use this comparison for early routing; final selection follows circuit and assembly review.

FactorDBCDPCAMB
Typical ceramic96% Al2O3 or AlN96% / 99.6% Al2O3 or AlNSi3N4; selected AlN
Copper systemDirect-bonded foilSeed layer plus plated copperActive-metal braze plus copper
Copper positioningThick / high currentThin-to-medium controlledThick / robust power
Circuit precisionMediumHighMedium
Thermal performanceStrongGood for localized heatStrong system performance
Mechanical reliabilityGood; layout dependentPrecision/light-copper circuitsHighest severe-cycle position
Power electronicsHighLow–mediumVery high
AutomotiveMedium–highSelected electronicsVery high
Fine circuitsMediumHighLow–medium

Custom Manufacturing

Review ceramic and circuit as one engineered system.

The quote combines ceramic, copper, layout, finish and assembly requirements.

  • Individual units or master cards
  • Custom circuit artwork
  • Single- or double-sided copper
  • Selected asymmetric configurations
  • Bare or plated copper finishes
  • Electrical and bond testing to agreed criteria

Quality & Inspection

Inspect both ceramic and metallization.

Inspection and documentation are available on request and defined during quotation.

  • Ceramic and copper thickness
  • Pattern dimensions and isolation gaps
  • Flatness / bending
  • Surface-finish thickness
  • Visual and electrical inspection
  • Bond, peel or braze-integrity tests when specified

Packaging & Shipping

Protect patterns, finishes and ceramic edges.

Packaging is selected for master cards, individual units and copper surface condition.

  • Individual separation
  • Anti-scratch surface protection
  • Rigid trays or master-card frames
  • Copper corrosion protection where appropriate
  • Inner box and export carton
  • Wooden case when required

Ordering Information

MOQ and typical lead time.

MOQ and lead time depend on ceramic base, copper layout, finish, panel utilization, quantity and qualification requirements.

Recommended MOQ

5 pieces or one master-card equivalent

DBC

5-9 weeks

FAQ

Questions buyers commonly ask.

Practical sourcing questions for material selection, processing and ordering.

Should I choose DBC, DPC or AMB?

Choose DBC for established thick-copper power circuits, DPC for fine controlled plated circuits and AMB for severe thermal cycling and high mechanical reliability.

Can multiple ceramic bases be used?

Yes. Alumina and AlN are common for DBC/DPC, while Si3N4 is the priority AMB base for high-reliability power modules.

Are the line/space values guaranteed for every design?

No. They are starting references. Copper thickness, geometry, panel utilization and process route control feasibility.

What information is required for quotation?

Provide ceramic and copper thickness, metallization route, circuit file, finish, electrical or reliability criteria, quantity and assembly process.

What to Specify for RFQ

Provide the complete ceramic and circuit definition.

Metallized substrates require more than an outline drawing.

  • DBC, DPC, AMB or other route
  • Ceramic base and grade
  • Ceramic thickness
  • Copper / metal thickness
  • Circuit drawing / Gerber / DXF
  • Minimum line and isolation gap
  • Surface finish
  • Flatness / warpage
  • Electrical / bond tests
  • Quantity and delivery target

Engineering RFQ

Tell us what the substrate must do.

Provide the drawing, dimensions, quantity and application requirements so the team can review material and processing options before quotation.

Engineering RFQ

Tell us what the component must do.

All fields are required. Provide practical operating details so our team can review the material and manufacturing requirements.

Your request will be reviewed by our team before a technical or commercial response is issued.