What is the difference between electromigration and thermal hysteresis?
dcc
88
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Jump to Posthmm.. beyond my knowledge.. have you tried researching it online?
Jump to PostFrom a quick skim of Wikipedia articles for each of them, they seem largely unrelated. Thermal hysteresis seems to be the range of temperatures at which a solution will undergo a given state change. Hysteresis in general seems to be the phenomenon of systems which undergo a lagged reaction to …
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joshSCH
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hmm.. beyond my knowledge.. have you tried researching it online?
Infarction
503
Posting Virtuoso
From a quick skim of Wikipedia articles for each of them, they seem largely unrelated. Thermal hysteresis seems to be the range of temperatures at which a solution will undergo a given state change. Hysteresis in general seems to be the phenomenon of systems which undergo a lagged reaction to the addition and then removal of a force and it's effect. Electromigration seems to be the process of actual material moving around during the operating life of a circuit.
Other than that, I'd never heard of the two before :icon_wink:
Mushy-pea
36
What, you can change this tag?
In fact, what you just said makes them seem pretty related. State changes in materials usually do occur as a result in temperature change and it is usually a progressive transition that can occur over a range of temperatures.
Steven.
dcc
88
Posting Virtuoso
Mushy-pea, that is what I had thought. The thermal hysteresis would be the end result of the electromigration.
dcc
88
Posting Virtuoso
I had meant to add the following but multitasking took me over the thirty minute limit for editing, so here's the rest of the information.
Electromigration has been around for about a hundred years but didn't have real relevance until the about 1966 with the advent of the IC. One of the considerations in designing ICs is the high temperatures which break down the copper traces, so much so that there is a test called the high temperature over life which can determine the life expectancy of an IC in a given situation. Through combining different alloys and annealing they have made significant improvements, but the heat issue still exists. I will be interested to see what will happen in the near future, there are companies experimenting with the use of fiber optics for connections which will not only eliminate the electromigration problem but should also be appreciably faster.
paramasivan
11
Posting Virtuoso
World without friction?
dcc
88
Posting Virtuoso
But what is the world without smoke and mirrors?
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