PCB designs typically incorporate thermal via arrays directly beneath the thermal pad of SMDs. When the component is soldered to the board, its base connects to the thermal vias on the top layer. This allows heat to flow vertically through the vias to internal copper planes or the bottom layer. These layers act as heat sinks, spreading the heat ...

Mar 22, 2021 · Working with thermal vias and other passive heat dissipation techniques in PCB designs can help you comply with IPC 2152 standards on thermal performance. Learn more about designing to IPC 2152 guidelines.

Feb 7, 2025 · Learn how thermal vias help manage heat in PCB design by transferring heat from hot spots and improving system reliability. Find out more in this guide.

Thermal vias in PCBs are small conductive holes filled with solder or other materials that help transfer heat from one PCB layer to another. They maintain optimal operating temperatures for components by allowing heat to escape from high-temperature areas.

Mar 22, 2021 · Thermal vias are simply vias placed below a component that spans through a stackup. These vias can connect to the ground plane in the stackup in order to transfer heat to an inner layer, where heat then conducts through the ground layer to the rest of the board.

Mar 13, 2025 · PCB Thermal vias are plated through holes (PTHs) in PCBs that help take away heat from surface-mounted components. They enable heat to flow easily between the top copper layer and the bottom. A single thermal via cannot operate independently; arrays are needed.

Aug 6, 2019 · Thermal vias are—very simply—holes located under a surface-mounted heat source in a circuit board that allow heat transfer. Simple vias or via-in-pad can provide a large reduction in thermal resistance.

Aug 13, 2021 · Often, the way to control the heat from such a component is to (a) create a copper pad underneath it as solid as possible, and then (b) place vias between the pad to a heat conducting surface somewhere below the pad. Such vias are called “thermal vias.”

Aug 26, 2021 · Thermal Vias are simple plated through holes (PTHs) that located under a surface-mounted heat source component in a printed circuit board (PCB) that allow heat transfer. The vias establish a low thermal resistance path from the top copper to …

Sep 25, 2023 · Learn how to optimize PCB heat management with thermal vias. This article explores their role, design considerations, and material selection to improve heat dissipation, ensuring stable operation and extending component life in high-density PCB.