The ever-increasing density of MOSFETs on an integrated circuit creates problems of substantial localized heat generation that can impair circuit operation. Circuits operate more slowly at high temperatures, and have reduced reliability and shorter lifetimes. Heat sinks and other cooling devices and methods are now required for many integrated circuits including microprocessors.
Power MOSFETs are at risk of thermal runaway. As their on-state resistance rises with temperature, if the load is approximately a constant-current load then the power loss rises correspondingly, generating further heat. When the heatsink is not able to keep the temperature low enough, the junction temperature may rise quickly and uncontrollably, resulting in destruction of the device.
Other articles related to "heat, production":
... Research has shown that one function is as a surface area for heat exchange ... The bill has the ability to modify blood flow and so regulate heat distribution in the bird, allowing it to use its bill as a thermal radiator ... In its capacity to remove body heat the bill is comparable to that of elephant ears ...
... In the strict terminology of physics, heat is defined as a word that refers to a process, not to a state of a system ... terms, a process is admitted as heating only when what is meant is transfer of energy as heat ... In the strict physical sense, heat cannot be 'produced', because the usage 'production of heat' misleadingly seems to refer to a state variable ...
Famous quotes containing the words production and/or heat:
“Every production of an artist should be the expression of an adventure of his soul.”
—W. Somerset Maugham (18741965)
“The train was crammed, the heat stifling. We feel out of sorts, but do not quite know if we are hungry or drowsy. But when we have fed and slept, life will regain its looks, and the American instruments will make music in the merry cafe described by our friend Lange. And then, sometime later, we die.”
—Vladimir Nabokov (18991977)