Thermally enhanced SMT power components

Conference paper (2009)

Authors

I. Josifovic Electrical Power Processing
J. Popovic Electrical Power Processing
Jan Abraham Ferreira Electrical Power Processing
Research Group
Electrical Power Processing
More Info
expand_more

Published Date

2009

Language

Undefined/Unknown

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Research Group

Electrical Power Processing

Abstract

The paper introduces new x-dimension (x-dim) components that allow for high components packaging density and automated manufacturing of power converters. The x-dim components are double sided SMT passives, having uniform height (x) and enhanced thermal properties. With stacked converter construction and the x-dim components soldered to two sides, the heat removal from the systems can be significantly improved. This publication presents various methods to manufacture thermally enhanced x-dim components. The thermal behaviour of x-dim components is improved by integrating heat extractors, removing packaging materials and filling the air gaps by potting compounds. In the stacked construction, thermal enhancement of one component improves heat removal from other components, placed in adjacent stack layers. Thermal performance of x-dim components in both standard and stacked converter constructions is evaluated by FEM and analytical simulations. New x-dim components employed in stacked construction play a key role in overcoming current power density limits.