Aiming at IGBT modules, Japanese heat spreader maker ALMT has developed a thermal base plate alloy that improves heatsink contact. IGBT base plates are subtly convex (see diagram) so that when they are mounted on a flat base plate, the screw holes have a gap beneath them (~200μm). When the screws are tightened, the curve ...
Read full article: PCIM: Heat spreader keeps shape despite thermal cycling
from News – Electronics Weekly http://ift.tt/2qbu9gQ
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