Single Layer High Power Metal Core PCB LED COB MCPCB for Street Lights
 
 

 
 
Descriptions:
 

COB MCPCB (known as "Chip-On-Board" metal core PCB) is a type of MCPCB used in thermoelectric separation application. By using COB MCPCB, the micro-chip (also known as “die") directly touches the metal core where the heat dissipate and electrically interconnect the trace of circuit board (wire-bonding) so that power supply can be provided.

In normal MCPCB, there's a dielectric layer between trace copper and metal core. And the thermal conductivity is limited with the dielectric layers, the value is 1~3 100W/m.K. But using COB MCPCB, there's no such dielectric layer but chip (die) direct touch the metal core, so thermal conductivity value of COB MCPCB will be almost the same with metal core material itself. The normal material of metal core is aluminum, and the thermal conductibility of COB MCPCB could reach more than 200W/m.K.

COB process consists of three main categories to perform when manufacturing

Metal Core PCB applications
 

• Power Conversion: Thermal clad PCB offers a variety of thermal performances, which is highly reliable and compatible with mechanical fasteners

• LEDs: Thermal clad PCB assures the lowest possible operating temperatures and maximum brightness, color and life.

• Motor Drives: Thermal clad PCB dielectric choices provide the electrical isolation meet operating parameters and safety agency test requirements.

• Solid State Relays: Thermal clad PCB offers a very thermally efficient and mechanically robust substrate.

• Automotive: The automotive industry uses thermal clad PCB boards as it needs long term reliability under high operating temperatures coupled with its requirement of effective space utilization.

 
Thermal Clad PCB Material

• Bergquist
• Thermagon
• Arlon
• Denka

 
 
Metal Core PCB Specifications
 

• 1 & 2 Layer Dielectrics
• Up to 6 oz finished Cu
• Aluminum, Copper and iron alloy base material up to .250" thick
• HASL, ENIG ,OSP, Pb Free HASL finishing available

 
Metal Core PCB Benefits
 

• Lower Operating Temperatures
• Improved Product Durability
• Increased Power Density
• Increased Thermal Efficiency
• Reduced Number of Interconnects
• Lower Junction Temperatures
• Reduced PCB Size
• Eliminates Older Hardware
• Minimizes Labor Required for Assembly
• Wide Variety of Form Factors
• Minimize Thermal Impedance

 
Thermal Clad Metal Core PCB fabrication contact us for more details.
 
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