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How do we define a semi-conductor? It's mainly produced of materials with special resistance (it is between that of a conductor and a non-conductor). Variations of temperature or used dashes also change the resistance.

The term “impurities” stands for the other elements added to the material. The final mixture characterizes the semiconductors as diodes of type-n and type-t.

The union of type-n and type-t semiconductors is used to create diodes and transistors. It's known that now the most wide spread material for semiconductor creation is silicon.

Diode also is the electronic unit produced of semiconductor substance. It lets electrical current flow only in a single sense. In each diode there is a component created of positive and negative constructions (written as p- and n-) and of barrier level (or pn-transfer). Diodes produce electrical circuits changing between direct and alternating electrical current. Just a part of the series or cycle is to pass by because diodes let current go simply in a single direction. A combination of this type is known as a rectifier.

LED (or light diodes) is another variant of diodes. They are used in case it's necessary to create light at little voltages and parallel generate no warmth. Now specialists apply LED light diodes as the light showing the standby state of different electronic devices.

Moore's law gave way to the popularization of thyristors theory. Lithography is the most significant side of manufacturing complicated power semi-conductor equipment at lower cost. Concerning optical lithography, it now leads to the increase of other techniques because it has reached its development limit. Now ultraviolet lithography and nano-imprint lithography are thought to stay the most suitable substitutes to optical method.

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