Biberger Straße 93
82008 Unterhaching, de
+49 (2522) 9370558
Power modules without a baseplate: A reliable and cost-effective solution from Vincotech
The differences between modules with and without baseplates in reliability and thermal conductivity
Modules with solid baseplates made of copper or aluminum silicon carbide are commonplace. Cost concerns have also given rise to a new breed of module without a baseplate. Having examined different variants of modules, we can draw the following conclusions: The longest component life may be achieved by keeping temperature ripple low. The load and environmental conditions are key factors. The smaller the number and the lesser the extent of thermal expansions, the greater the reliability. The CTE of materials should match. If thermal capacity is not an issue, a module without a copper baseplate is the right choice.
Modules with baseplates may still be necessary if brief spikes of high energy are expected. Each downward layer of material layer influences thermal spreading. Rth values stated in the datasheet are measured with a water-cooled heatsink and indicate the worst-case scenarios.
This paper describes the differences between modules with and without baseplates, and how the reliability and thermal conductivity is affected. Please feel free to read Vincotech's article on under:
The use of information published here for personal information and editorial processing is generally free of charge. Please clarify any copyright issues with the stated publisher before further use. In the event of publication, please send a specimen copy to email@example.com.