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Thermal Design of Semiconductor Components in Electronic EquipmentInfluence of PCB Orientation

2023.07.19

Points of this article

・In a natural air-cooled environment, thermal resistance differs according to whether a PCB is horizontal or vertical.

・If a PCB is oriented vertically, convective heat transfer is increased, and the thermal resistance drops.

When installing a PCB in a housing, in a natural air-cooled environment, the thermal resistance is different depending on whether the PCB is horizontal or vertical. If the PCB is installed vertically, heat escapes upward from both the PCB surfaces, so that convective heat transfer is increased and thermal resistance falls. Simulation results are compared below.

【Download Documents】 Thermal Design of Semiconductor Components in Electronics

Thermal design has become a new issue in the design of electronic equipment in recent years, as thermal countermeasures have been the focus of attention. Although heat has been an important consideration for some time, the requirements for electronic equipment have changed in recent years, making it necessary to review conventional thermal countermeasures. This handbook describes thermal design based on the assumption that ICs and transistors are basically used in electronic equipment.

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Electrical Circuit Design

Thermal design

Switching Noise

Simulation