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by adrian_b
35 days ago
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Like I have already said in another comment, semiconductors and metals behave differently when temperature increases. For metals the electrical resistance increases with temperature, causing a negative feedback that limits the increase of the temperature, while for semiconductors the electrical resistance decreases with temperature above a certain threshold, so once that threshold is reached positive feedback increases the temperature very quickly until the semiconductor is melted, unless there is some protection system that limits the power dissipation through the semiconductor. That is why it is very easy to melt silicon in an integrated circuit or in a discrete device, despite its high melting point. |
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