What are the outer semiconductors?

The outer semiconductors are partially conductive and partially insulating materials that have been chemically changed to carry a neutral electric charge. They are building blocks of semiconductor devices. The production of external semiconductors monitors the successful production of internal semiconductors and their transformation to a positive (p) type or negative (n) -the semiconductor. This pure silicon, while in liquid form, easily reacts with oxygen to return to the variant of conventional sand. Using a special production environment, for example in a vacuum or in non -reactive gas, the silicon material has a chance to have a high purity. Any undesirable traces of other elements and compounds are also separated to achieve pure silicon. Silicon is melted at approximately 2,577 ° F (about 1,414 ° C), so special equipment and technology are required.

The pure silicon itself must be subsidized so that it does not remain permanently as an inner semiconductor. DopING includes the introduction of other controlled dirt into the inner semiconductor while it is in liquid form. In the electronic industry it is necessary to use a pure silicon functioning as an inner semiconductor to use the outer semiconductor. If it has stiffened as inner, it must be melted again to form an outer semiconductor. Once the inner semiconductor is in liquid form, the creation of a p or n-type semiconductor N is another choice and with the right dopan elements or the correct selection of controlled dirt, becomes an inner semiconductor or doped semiconductor.

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outer semiconductors are either type N or P, depending on the dopant used. Dopant such as Boron may have three electrons on an external atomic shell or valency to form a P -type semiconductor. Ti with five valence electrons such as phosphorThe phosphorus silk creates a semiconductor type N or an electron donor. One boron atom up to 10 million silicon atoms is a typical ratio of the amount of impurities in the inner semiconductor.

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semiconductor plant adds components with different combinations of external semiconductors. The two-term diode has a single P-N intersection or a connecting semiconductor P and N. Very extensive integration chips have thousands of intersections of P and N-type semiconductors.