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Metal core circuit boards

Metal core or IMS (Insulated Metallic Substrate) circuit boards are an excellent alternative to standard circuit boards, if the circuit boards are exposed to large mechanical loads, or a high level of dimensional stability is required, or high temperatures must be conducted away from power components or LEDs. Benefit from our many years of experience with Insulated Metal Substrate (IMS) PCBs.

The thermal conductivity assisted by the aluminium core in the circuit boards enables higher packing density, more stable operating parameters, higher operational safety and a reduced failure rate. Ideal e.g. for laser diodes!

The integration of the cooling unit in the printed circuit board also results in space savings.

 

Additional application areas for this technology include: high current application, power LED's, SMD and power circuit boards. The high thermal conductivity and small insulation thickness (standard: 100µm) permits a quick and effective transfer of the heat produced.

In addition, Multi-CB is also at your side for further aspects of thermal management:

  • Design / construction of the heat-critical circuit board
  • Thermal via array
  • Thick-Copper PCBs

Always included

  • Alu core 1.5mm, 35µm Cu
  • 2.0 W/mK Thermal conductivity
  • 100µm Insulation thickness
  • Surface HAL lead-free
  • 1x solder-stop white
  • Milling inner / outer
  • V-Scoring (clean & simple)
  • E-Test, Design Rule Check

 
Design-Aid

Find layout tips and all design parameters in our comprehensive Design-Aid.

Discover here

Available types

You can order single sided, double sided and double sided pth aluminium core circuit boards from Multi-CB (see: layer buildup). Depending on the design, the thermal conductivity ranges from 2.0 to 7.0 W/mK (the value for FR4 is approx. 0.3 W/mK).

The option Z-axis milling of the insulation also allows a direct connection of the components to the aluminum core by means of thermal paste (or similar). Bendable metal core printed circuit boards with ceramic-based insulation can also be produced.

Technical options for Metal core circuit boards

OptionsInklusiveNotes
MaterialAluminium core-Datasheets
Max. size420mm x 570mm-
Design1 layer, 2 layers plated-through
Aluminium thickness0.5mm, 0.8mm, 1.0mm, 1.5mm, 2.0mm1.5mm
Copper35µm, 70µm, 105µm, 140µm35µm
Insulation thickness75µm, 100µm, 125µm, 150µm100µm
Thermal conductivity2.0W/mK - 7.0W/mK2.0W/mK
Conductor width min.150µm150µm
Annular ring min.125µm150µm
Drill (NPTH) min. Ø0.5mm0.9mmDesign-Aid
Via min. Ø0.2mm0.2mm
SurfaceHAL lead-free, chemical goldHAL lead-freeSurfaces
Solder-stopwhite, black, green, red, bluewhite, black
Legend printblack, white-
Millingyesyes
V-Scoringyesyesclean & simple
Z-Axis millingyes-
RoHS compliantyesyes
UL-certifiedyesyesUL certificate

METAL CORE PCBs (IMS)

Inclusive 

  • Alu core 1.5mm, 35µm Cu
  • 2.0 W/mK, insulation 100µm
  • Surface HAL lead-free
  • 1x solder-stop white
  • Milling inner, outer
  • E-Test, Design-Rule-Check

Optional: SS black, Express, ..

e.g. 1 layer IMS
80mm x 100mm
10 WD6 WD
1 pc.

74.80 €

124.60 €

3 pcs. each

31.48 €

41.53 €

10 pcs. each

11.91 €

18.03 €

25 pcs. each

6.82 €

9.89 €

Click for: Price & Production time, Quote & Order

1 layer Metal core

* Examples for 100μm dielectric or 80μm for CCAF material
Material for metal core boards
1 Layer
Thermal
conductivity
Thermal
resistance
Surface
Resistivity
Dielectric glass
transition (Tg)
Dielectric
Breakdown (AC)*
Tracking
resistance CTI
 W/mKK/W°CkVPLC
TC-Lam 2.02.00.5010^71005.00
HA50 (3)2.20.4110^61204.30
AL-2002.00.3510^8-3.50
AL-3003.00.3010^8-3.50
Ventec VT-4B3
Ceramic Filled
3.0-5 x 10^81308.00
Ventec VT-4B4
Ceramic Filled
4.2-2 x 10^71208.00
Ventec VT-4B7
Ceramic Filled
7.0-2 x 10^71008.00

2 layers Metal core (PTH) - Design Parameters

* Examples for 100µm dielectric
Material for metal core boards
2 Layers (plated-through)
Thermal
conductivity
Thermal
resistance
Surface
Resistivity
Dielectric glass
transition (Tg)
Dielectric
Breakdown (AC)*
Tracking
resistance CTI
 W/mKK/W°CkVPLC
Ventec VT-4A22.2-2 x 10^71307.50
Ventec VT-4B3
Ceramic Filled
3.0-5 x 10^81308.00

For optimal preparation, we recommend that you contact our CAM-Station engineers early on. We would be very happy to advise you during the development process.

UL certification for Metal core circuit boards

At Multi-CB, you also get Metal core circuit boards with UL certification.