AS PROMISED IN MY editorial of the 2011 Fall issue, I will devote this issue’s column on the topic of heat spreading. The reason is that I, while writing a white paper on basic thermal management for LED applications, found some unexpected facts pointing at problems of interpretation of heat spreading data for dual layers when using the often-used heat spreading equations. In … [Read more...]
Editorial: Forward Looking
IN THE LAST WINTER ISSUE OF ELECTRONICS COOLING, our friend and colleague Bob Simons used his editorial column to inform us that he was resigning his position as an associate technical editor and this issue will be his last. The title of Bob’s editorial was “Looking Back” so it seems fitting to include the term forward in the title of this editorial and to use this space to … [Read more...]
Ideas Sought for Better Electronics Cooling Technology for Helicopters
A helicopter corporation is sponsoring a contest, asking entrepreneurs and companies that are willing to establish a spinoff at a new innovation center in Stamford to propose technology concepts that could be used on helicopters. Chris Van Buiten, vice president of Sikorsky Innovations, gave an example of a better electronics cooling technology, which could reduce the number … [Read more...]
Bottlenecks and Interface Materials; Part 3 – Relieving Thermal Bottlenecks Reduce Temperatures
As with all good inventions, you quickly wonder how on earth you could have done without them before. Relieving thermal bottlenecks reduce temperatures; it’s so blindingly obvious. Now that we have the ability to visualise with FloTHERM exactly where the thermal bottlenecks are in a design, the job of the (overworked/underpaid) thermal design engineer just got that more … [Read more...]
Bottlenecks and Interface Materials; Part 2 – When TIMs Go Bad
‘Bits stuck onto other bits’, a succinct definition of an electronic product, if not a product that contains electronics. Soldering is the method of choice for getting the components to attach to the pcb, the layered board that contains the metallic traces connecting component pins to other component pins. Rivets, welds, screws or bolts for the chassis, some form of … [Read more...]
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