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 LED's.

Metal core PCB

The thermal conductivity assisted by the aluminium cores in the circuit boards makes higher packing densities, longer operating times, and improved security against failure possible, such as for LED technology and for high power transistors.

 

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

 

Available types

You can order single sided and double sided pth aluminium core circuit boards from Multi CB (see: layer buildup). Depending on the design, thermal conductivity ranges from 0.67 to 2.2 W/m*K! (The value for FR4 is approx. 0.3 W/m*K.)

1 layer   Notes
Material Aluminium core, FR4 covering Data sheet 1 layer
Max. size 230mm x 380mm  
Aluminium thickness 1.5mm, 2.0mm  
Initial copper 35µm (for 1.5mm), 140µm (for 2.0mm)  
Surface Lead-free HAL, immersion gold, immersion tin  
RoHS compliant yes  
2 layers plated through   Notes
Material Aluminium core, FR4 covering Data sheet 2 layers
Max. size 600mm x 600mm  
Aluminium thickness 1.2mm, 1.5mm, 1.6mm In stock
  0.8mm, 1.0mm, 2.0mm On request
Basis copper 18µm, 35µm, 70µm, 105µm, 140µm  
Surface Lead-free HAL, immersion gold, immersion tin  
RoHS compliant yes  
Design parameters   Notes
Min. conductor width 200µm  
Min. conductor spacing 200µm  
Min. annular ring 150µm  
Min. via (pth) 0.3mm Aspect ratio 1:5
Min. Via spacing 1.0mm  
Min. drilling (npth) 1.0mm  
Technical properties Unit 1 layer 2L- CCAF -01 2L- CCAF -04 2L- CCAF -05 Test method
Thermal conductivity factor W / m*k 0.67 1 1.5 2.2 ASTM-D 5470
Dielectric constant εr(permittivity) (for 1 MHz) 4.7 4.2 4.2 4.24 IEC-61189
Loss factor (for 1 MHz) 0.018 0.02 0.02 0.033 IEC-61189
Surface resistance 1.1 *10^6 5*10^7 5*10^7 3.68 *10^7 IEC-61189
Thermal durability °C / W - 1 0.65 0.45 ASTM-E 1225
Glass transition dielectric °C 130 - - - IPC-TM150

Overview of technical options for special production circuit boards.

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.

Additional information

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Pricing Examples

Printed Circuit Boards always include:

- E-Test
- Solder-stop 2x
- Marking print 1x
- Gerber-Import
- Scoring (series)
- Design-Rule-Check

- Tooling costs
- Photoplot
- Conductors 150μm
- Drill holes 0,3mm
- Unlimited drilling
- HAL, FR4 1,6, 35μm Cu

Prototypes
2 layers - 6 WD
41,- €
1 Printed circuit board 100x100mm
4 layers - 6 WD
118,- €
1 Printed circuit board 160x100mm
6 layers - 8 WD
148,- €
1 Printed circuit board 160x100mm
Series
e.g. 100 pcs. Eurocard 100x160mm
2 layers - each
4,76 €
 
4 layers - each
7,41 €
 
6 layers - each
11,20 €
 
8 layers - each
16,05 €
 
SMD Stencils
max. 200x300mm - 3WD
47,50 €
1 Stencil, including 1000 pads
max. 600x600mm - 3WD
90,44 €
1 Stencil, including 2500 pads

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