"Who's that guy with the gigantic novelty scissors?" I asked. "That's Percy," Herbie said, "VP of the Biological Intercommunications Group, BIG for short. The Lost Pet Tracking System has been his baby since Day One." There was a festive air at the Prairieton Police Station, kids holding dogs on leashes, colorful balloons tied to squad cars, even the high school marching … [Read more...]
Don't underestimate radiation in electronic cooling
don't underestimate radiation in electronics cooling Bruce M. Guenin, Ph.D., Associate Editor, Amkor Technology, Inc. It is easy to underestimate the role of thermal radiation as a significant contributor to electronics cooling in environments without forced air flow. By its very nature it is invisible. The proper treatment of it can be intimidating due to the complicated … [Read more...]
Convection and radiation heat loss from a printed circuit board
In last issue's column, a method for calculating the thermal conductivity of a printed circuit board (PCB) was described. Now, we look at a more complicated heat transfer process, namely the loss of heat from the surface of a PCB to the ambient air. This situation is more challenging to describe mathematically since it involves the simultaneous processes of heat spreading by … [Read more...]
