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what is electromigration?

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xofun

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Can anyone could explain it in a easy way to understand?
thanks a lot

best wishes
 

Electromigration is a mass transport of metal atoms in direction of electrons due to this current density increases and Metal resistance increases .Electromigration mainly occur in POWER pads and signal nets .Temperature and AC signals also Effects EM.Solution is Increase Width of wire and decreasing no of contacts for specified area .
 

Loosing electrons from a material as a consequence of curent flow (which is not good)
 

IT is a seriuos issue when designing system which haev minor circuit paths (microprossors). because even a minor electronmigration could detoriate the performance of the processor, and render is useless
 

when frequency increases, the cross section available for electron path decreases leading to higher resistance to current flow
 

In IC design, you should consider elecotromigration in metal width. The gold rule is 1um width metal can take 1mA current.
 

when the current in a thin meta is too large, then the atoms in the

thin metal will move and some place of the thin metal to be broken.

best regards




xofun said:
Can anyone could explain it in a easy way to understand?
thanks a lot

best wishes
 

Electromigration is generally considered to be the result of momentum transfer from the electrons, which move in the applied electric field, to the ions which make up the lattice of the interconnect material.
 

what is the differance between lattice diffusion and grain boundary diffusion in metals, while undergoing electromigration.another question,can electromigration take place in semiconductorsb also?
 

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