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Single Layer Metal Core PCBs

Single layer metal core PCBs are made from one thin layer of thermally conductive, but electrically insulating dielectric material laminated with copper. It consists of a metal base in either aluminum or copper alloy, dielectric layer, and copper conductor layer. The thickness of the copper layer varies from 1-20 ounces.

Single Layer Metal Core PCB Capabilities

Below are the capabilities of the Single Layer metal core PCB at Rigiflex

Technical Specification




Aluminum core
FR4 prepreg


HAL lead-free
chemical gold
immersion tin

Initial copper

35µm (for 1.5mm)
140µm (for 2.0mm)
Immersion Gold
Immersion Silver
Surface Finish
Immersion Gold
Inspection Methods
100% Visual Inspection
Cross Sectioning
Sample Lot Inspection
Electrical Testing
Min. conductor width-150µm
Maximum Number of Layers: 1- 20
Minimum Line Spacing and Line Width: 3 MIL


Advantages of Single layer metal core PCB

Below are some of the advantages of single layer PCBs:

  • Single layer PCB has high thermal conductivity, which permits a quick and effective transfer of the heat produced.
  • Compatible for simple, low-density designs
  • Integration of the cooling unit in the printed circuit board of the Single layer PCB also results in space savings.
  • Very less manufacturing issues.
  • They are popular, comprehensive, and can easily be understood by most PCB manufacturers.

Applications of Single layer metal core PCB

Single layer metal core PCB’s offers a wide range of benefits. Additional application areas for this technology are described below

  • Audio Equipment: With the single layer pattern inside the board, they are mechanically robust and offer thermal efficiency in various audio equipment.
  • Relays (automotive and industrial): The automotive industry uses thermal clad PCB boards, as it needs longer operating times under high operating temperatures coupled with its requirement of effective space utilization.
  • LED lighting: Single layer PCBs assure the lowest possible operating temperatures and maximum brightness to LED bulbs and devices.
  • Sensor products: The high thermal conductivity permits a quick and effective transfer of the heat produced, thus proving viable for various sensor products.
  • Packaging equipment: Single layer metal core PCB boards are available with surface finishes including Organic Surface Protectant (OSP), Immersion Silver, Tin, and Gold plating which increases their efficiency.

Rigiflex Technology has been a chosen name in the field of manufacturing PCBs. We are always ready to provide you with the best service. If you have any questions regarding Single layer metal core PCBs, please call us at (714) 688-1500.

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