Do modern LED lights use thermal vias?

I have a technical question about thermal management with mid-power LED diodes.Do you use thermal vias on the PC board anymore? Either under the LED diode footprint or even around the footprint? Depends on the application limits and cost targets.

Aluminium PCBs are quite popular, especially for applications where the total LED quantity and/or power is high (e.g. COBs).

Aluminium is used as the substrate, and the PCB tracks are isolated from it. Different materials are available for different isolation requirements.

This aluminium PCB can be directly attached to the heatsink.

 

Read More: Choosing the Right PCB Laminate Material for Your Project

#PCB Materials #LED

Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.
Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

What Others Are Asking

How do I determine the traces width when designing a PCB?

Our team are developing a portable medical device with a small size, so we need a small PCB. How do I determine the traces width when designing a PCB? Actually we want it as narrow as possible to fit the device, is it OK?

Do you know the standard thickness of a copper layer on a PCB?

We visited a PCB factory. And find that there are copper boards with various thickness in their incoming materials warehouse. That’s cool. It is the first time we see that. How many standard thicknesses of a copper layer on a PCB?

What type of PCB material should I use?

I’m making my first 4 layer PCB (1 signal, 2 GND plane, 3 PWR plane, 4 signal) with impedance control. How do you know what type of material to use? Is FR4 material ok for the 50 Ω and 90 Ω impedance?

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