What thermal grease precautions should we be aware of?

While thermal grease promotes thermal conduction to a fin, it has a thermal capacity itself. Applying too much grease will obstruct the heat radiation to fins. At the same time, applying too little will increase the contact thermal resistance because thermal grease will not have good contact in some spots between the fins and module for bonding. For details, refer to Application Manual Chapter 6-3.3 “Thermal paste application” and technical documents.

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