02-Dec-2007, 17:27
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 | Moderator | | Join Date: Feb 2003 Country: USA
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 Re: Help, correct my mistakes
Quote:
Originally Posted by RonBee  What is the problem? The problem is that common plastics aren’t conductive. They belong to nonconductors. Solid state conductors are metals but also semiconductors can be conductive under some conditions. Changing external or internal conditions can easily modify the conduction of the semiconductor. The change of the external condition can be caused by some kind of energy, for example by light or by thermal energy. The change of the internal condition is caused by adding impurities of other elements. To summarize the main advantage of semiconductors before metals is the possibility to change easily their conductive condition. That’s why the semiconductors are used in microchips.
| The problem is that common plastics aren’t conductive. They are nonconductors. Solid state conductors are metals but also semiconductors can be conductive under some conditions. Changing external or internal conditions can easily modify the conduction of the semiconductor. The change of the external condition can be caused by some kind of energy, for example by light or by thermal energy. The change of the internal condition is caused by adding impurities of other elements. To summarize, the main advantage of semiconductors over metals is the capability of easily changing their conductive condition. That’s why semiconductors are used in microchips.
As you can see, not many changes were necessary there.
~R  |