What is the best PCB practice for thermal via placement for SMT semiconductor devices?

My teammate are designing an LED Board and confused by PCB heat sink problem. Is it on the back or the sides with copper traces? Is it on the anode and cathode pad or side copper traces?

Thermal via’s don’t work well to conduct heat because they are essentially a copper-lined hole. If you really want to conduct heat to another layer, then you should really think about using through-hole components.

Copper pads do conduct heat well

  1. When we use the ‘copper pour’ function of your layout software to fill everything else with as much copper ground plane.
  2. When we oversize heat generating traces* to wick the heat away from the hot component

* where signal frequency is low enough to not be a consideration

Read More:PCB Thermal Conductivity and Its Importance

#PCB Assembly #THT PCB Assembly  #LED  #PCB Design

Julie Wang

Julie Wang

Julie is an electronic testing specialist, providing a full range of testing services for various types of PCB and electronic products, improving product performance and production test yield, and performing various production support engineering tasks. Reach Me Now>>
Julie Wang

Julie Wang

Julie is an electronic testing specialist, providing a full range of testing services for various types of PCB and electronic products, improving product performance and production test yield, and performing various production support engineering tasks. Reach Me Now>>

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