High heat density
Move heat from LEDs, power semiconductors or concentrated device areas toward a defined metal and heat-sink interface.
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Thermal Management
Metal Core PCB Manufacturing
EBest PCBA manufactures aluminum- and copper-base PCBs for lighting and power assemblies. We align the dielectric, circuit copper, mechanical features and heat-sink interface with your thermal and electrical requirements. Direct thermal path constructions are reviewed for selected devices.
We aim to provide an initial response within 12 hours. Materials, construction, inspection scope and production lead time are confirmed from your project files.
Thermal Dielectric1–3 W/m·K
Material references: 1, 1.5, 2 and 3 W/m·K.
Circuit Layers1–10 layers
Subject to construction and insulation review.
Finished Thickness0.6–4.0 mm
Metal-base thickness is specified separately.
Circuit Copper0.5–10 oz
Geometry and copper combination reviewed together.
Project fit
Choose MCPCB for Better Heat Dissipation
An MCPCB helps transfer heat away from high-power components and spread it through the metal base. The right construction depends on power density, electrical insulation, current requirements, assembly design, and the cooling method used in the final product.
Current and copper demand
Coordinate copper weight and conductor geometry with thermal spreading; thermal conductivity alone does not determine board performance.
Mechanical mounting
Review flatness, finished thickness, holes, outline, V-cut and contact surface against the enclosure or heat sink.
Assembly integration
Confirm the soldering profile, component keep-outs, fixture support and back-side contact before assembly.
Construction selection
Aluminum, Copper and DTP Options
Aluminum and copper are metal-base choices. Direct thermal path is a device-specific construction feature; pad electrical potential, base contact and surrounding circuit isolation must be defined.
Broad-area heat spreading
Aluminum Core PCB
A common option for heat spreading with lower weight and cost considerations. The dielectric, circuit copper, thickness and mounting interface are selected for the application.
Review: dielectric, voltage withstand, metal thicknessTypical fit: LED and power conversion assemblies
Heat spreading and mechanical fit
Copper Core PCB
Selected when heat concentration and the mechanical interface justify the added weight and cost. Electrical current capacity follows the circuit copper and geometry, not the base material alone.
Review: copper balance, machining, finished weightTypical fit: power modules and industrial electronics
Capability boundary
Metal Core PCB Manufacturing Capabilities
Select the metal base, dielectric and circuit construction together. Final geometry and thermal performance depend on the approved stack and system interface.
| Capability | Production Reference |
|---|---|
| Metal base | Aluminum and copper; stainless steel on selected constructions |
| Thermal dielectric conductivity | 1, 1.5, 2 and 3 W/m·K — thermal dielectric material reference values. |
| Circuit layers and construction | 1–10 layers on supported constructions |
| Finished thickness | 0.6–4.0 mm |
| Metal-base thickness — excluding copper | 0.30, 0.40, 0.50, 0.60, 0.80, 1.0, 1.2, 1.6, 2.0, 2.4 and 3.0 mm |
| Circuit copper | 0.5–10 oz, subject to construction review. Minimum line width and spacing depend on copper thickness. |
| Maximum board size | 610 × 1625 mm reference; confirmed for the material, construction and finished-board or panel requirements. |
| Line width / spacing | 4 / 4 mil reference |
| PTH / NPTH diameter tolerance | PTH: ±3 mil; NPTH: ±2 mil |
| Hole position tolerance | ±3 mil reference |
| PTH wall copper | 15 μm reference for standard constructions |
| Through-hole aspect ratio | 10:1 maximum reference |
| Solder mask | White, black, green, blue, yellow and red |
| Minimum solder-mask bridge | 8 mil reference |
| CNC outline tolerance | ±6 mil reference (approximately ±0.15 mm) |
| Surface finish | ENIG, ENEPIG, OSP and lead-free HASL |
| Direct thermal path | Selected device-pad constructions by review |
Dielectric conductivity is a material reference, not a guarantee of operating temperature. The quote confirms the construction, geometry, circuit-to-metal isolation and agreed tests.
Material system
MCPCB Materials and Thermal Path
A metal-core stack combines the aluminum or copper base, thermal dielectric, circuit copper, surface finish and back-side interface. These elements must meet the thermal, electrical, mechanical and assembly requirements together.
Balanced weight, cost and heat spreading
Common for lighting and power products that need a balance of heat spreading, mechanical rigidity, cost and production efficiency.
Heat spreading and mechanical fit
Selected for heat spreading and mechanical needs where the added weight and cost are justified. Circuit current capacity depends on the conductors and their geometry.
Conductivity with electrical isolation
Conductivity, dielectric thickness, voltage withstand, adhesion and thermal cycling are confirmed together rather than maximizing one value.
Copper, finish and heat-sink contact
Copper weight, solderable finish, optional back-side protection, flatness and interface material complete the board’s thermal and assembly interface.
Thermal-path engineering
Review the Complete Thermal Path
Device attachment, copper area, dielectric thickness, metal base and the heat-sink interface all affect operating temperature. We review the board stack and mechanical contact against your thermal targets.
Heat sourceComponent power loss, pad geometry and heat concentration determine where the path begins.
Copper fieldPad size, copper weight, spreading area and conductor clearance influence local heat distribution.
DielectricThermal conductivity, thickness and voltage withstand must be confirmed as one trade-off.
Metal baseMaterial, thickness, flatness and machining define heat spreading and the mechanical interface.
Final interfaceHeat-sink contact, fasteners, thermal interface material and assembly pressure complete the system.
MCPCB DFM review
MCPCB DFM Review
We check the material stack, conductor geometry, holes, metal clearances, outline and heat-sink contact. The review separates circuit-to-metal isolation, mounting features and any approved direct thermal path.
Material and stack mapping
Confirms metal base, dielectric, copper, solder mask, finish and any direct-thermal-path feature.
Thermal and voltage targets
Checks conductivity and dielectric thickness against electrical isolation and operating environment.
Copper and conductor geometry
Reviews copper weight, line width, spacing, pads and local heat-spreading areas together with etching limits.
Holes and metal isolation
Coordinates PTH, NPTH, slots, edge distance, plated features and insulation around the metal base.
Outline and mounting
Examines tolerances, V-cut, routing, chamfer, flatness, fasteners and the heat-sink contact surface.
Assembly and finish
Checks surface finish, soldering profile, fixture support, component height and back-side contact.
Manufacturing Process
Manufacturing and Inspection
The process covers material preparation, circuit formation, drilling and insulation, solder mask and surface finish, profiling, electrical testing and final inspection. Exact steps depend on the approved construction.
Confirm Gerber files and drawings, aluminum or copper selection, layer structure, thermal requirements, voltage withstand and assembly inputs.
Verify material family, conductivity class, dielectric thickness, metal base, finished thickness and copper weight.
Control imaging and etching according to the specified copper weight and line geometry.
Process PTH, NPTH, slots and special separation features against hole, plating and insulation requirements.
Apply solder mask, legend and the specified HASL, OSP, ENIG, silver, tin or plated-gold finish.
Control routing, outline tolerance, slots, edge clearance, V-cut angle and residual thickness.
Complete continuity testing, agreed isolation checks and final dimensional and visual inspection. Test voltage, duration, locations and acceptance criteria are defined by the order.
Special materials, finer geometry, heavier copper, unusual thicknesses and thermoelectric-separation structures require additional review before production.
Product construction options
MCPCB Constructions We Support
The configurations below illustrate construction options. Circuit layers, metal position, interconnections and isolation are confirmed from the approved cross-section.
Single circuit layer
Single-Layer Aluminum MCPCB
One circuit layer over a thermal dielectric and aluminum base.
Review: dielectric, voltage, outline, back-side contactTypical fit: LED lighting and compact power conversion
Discuss this configuration →
Two circuit layers
Two-Layer Aluminum MCPCB
Selected two-circuit-layer stacks with the approved metal and dielectric arrangement.
Review: stack, lamination, PTH/NPTH and registrationTypical fit: compact lighting drivers and power controls
Discuss this configuration →
Circuits on both sides
Double-Sided MCPCB
Circuits on both sides of an approved metal-core construction, with defined interconnection and isolation.
Review: via isolation, lamination and component accessTypical fit: compact heat-constrained control products
Discuss this configuration →
Special multilayer route
Multilayer MCPCB
Selected multilayer circuits integrated with a metal base and approved insulating structure.
Review: stack-up, drilling, plating, lamination and flatnessTypical fit: dense power and control electronics
Discuss this configuration →
Copper metal base
Copper Core PCB
A copper base selected for heat spreading and mechanical needs. Circuit copper and geometry determine current capacity.
Review: copper balance, machining, finished weightTypical fit: power modules and high-current electronics
Discuss this configuration →
Direct thermal path
Direct Thermal Path PCB
A device-specific thermal-pad connection to the metal base with defined pad potential and surrounding circuit isolation.
Review: platform geometry, finish, lamination and isolationTypical fit: concentrated high-power semiconductor devices
Discuss this configuration →Application environments
Typical MCPCB Applications
Metal core PCBs are commonly used where heat dissipation, electrical isolation and mechanical mounting must be managed together.
LED & Professional Lighting
High-bay, roadway and industrial lighting where LED junction heat, dielectric isolation and heat-sink contact drive the board construction.
Automotive Electronics
Lighting, power conversion and control products requiring thermal cycling, traceability and controlled mechanical interfaces.
New Energy and Power
Inverters, charging equipment and power assemblies where heat spreading, current and enclosure contact must be coordinated.
Industrial Control
Drives, power modules and control electronics designed for stable operation inside demanding equipment environments.
Quote-ready input
What to Send for an MCPCB Quote
Start with your board files, drawing and quantity. Add the thermal, electrical and mounting requirements you know; we will identify the information needed to finalize the construction and quote.
To Start: Board DataGerber or ODB++, drill files, netlist and fabrication drawing.
Construction Details: Metal and DielectricAluminum or copper base, conductivity, dielectric thickness and voltage withstand.
Copper and thicknessCopper weight, finished thickness and any controlled tolerance.
Thermal informationPower loss, heat-source location, temperature target or thermal-resistance requirement.
Mechanical interfaceOutline, holes, V-cut, chamfers, heat sink, fasteners and contact surface.
Finish and assemblySurface finish, soldering, wire bonding, component and back-side interface requirements.
To Start: Quantity and SchedulePrototype quantity, production batch, annual demand and target schedule.
Quality requirementsElectrical test, dimensional records, compliance, traceability and packing requirements.
Request Your MCPCB Quote
Share your design and thermal or mounting requirements. We will review the metal-base construction and confirm open questions, pricing and production lead time.
FAQ
Metal Core PCB Manufacturing Questions
How do aluminum, copper and DTP constructions differ?
Aluminum and copper are metal-base choices. DTP is a construction feature for a selected device thermal pad. The design must confirm heat flow, pad potential, surrounding electrical isolation, weight, cost and mounting requirements.
Does higher dielectric conductivity guarantee lower temperature?
No. Dielectric thickness, device attachment, copper spreading, metal base and the heat-sink interface also affect the complete thermal path.
What thickness and copper can be reviewed?
The manufacturing references are 0.6–4.0 mm finished thickness and 0.5–10 oz circuit copper on selected constructions. Final combinations depend on layer structure, metal base, dielectric, line geometry and mounting requirements.
Can the metal back remain exposed?
Yes. The metal back can remain exposed where the construction allows. Heat-sink contact, corrosion environment, flatness and the electrical arrangement must be defined.
Which finishes can be reviewed?
ENIG, ENEPIG, OSP and lead-free HASL are reference options. Immersion silver, immersion tin, plated-gold and other selected finishes require project review. DTP, wire bonding and contact interfaces need process-specific confirmation.
What should I send for an MCPCB quote?
Start with board data, the drawing, quantity and delivery target. Add metal and dielectric preferences, copper, thickness, finish and any thermal, voltage, mounting or assembly requirements you know. Partial information can start the review.