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Doped - Revision history
2026-04-26T01:37:48Z
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2025-03-17T09:44:36Z
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2025-02-10T15:25:29Z
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2025-02-10T15:15:01Z
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2024-06-12T20:13:33Z
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<p><b>New page</b></p><div>'''Doped''' refers to the process of adding impurities to a [[semiconductor]] to change its electrical properties. This process is crucial in the manufacturing of electronic components such as [[diodes]], [[transistors]], and [[integrated circuits]].<br />
==Types of Doping==<br />
There are two main types of doping:<br />
* '''N-type doping''': This involves adding elements that have more valence electrons than the semiconductor. For example, adding [[phosphorus]] to [[silicon]] introduces extra electrons, making the material more conductive.<br />
* '''P-type doping''': This involves adding elements with fewer valence electrons. For instance, adding [[boron]] to silicon creates "holes" or positive charge carriers, enhancing the material's conductivity.<br />
==Applications==<br />
Doping is essential in the creation of various semiconductor devices:<br />
* [[Diode]]s: These are created by joining P-type and N-type materials, forming a [[p-n junction]].<br />
* [[Transistor]]s: These devices use doped regions to control the flow of current and are fundamental in [[amplifier]]s and [[switch]]es.<br />
* [[Integrated circuit]]s: These are complex assemblies of multiple semiconductor devices on a single chip, used in virtually all modern electronic equipment.<br />
==Doping Techniques==<br />
Several techniques are used to introduce dopants into semiconductors:<br />
* '''Diffusion''': This involves placing the semiconductor in a high-temperature environment with the dopant material, allowing the dopant atoms to diffuse into the semiconductor.<br />
* '''Ion implantation''': This technique uses a beam of dopant ions that are accelerated and implanted into the semiconductor material.<br />
* '''Epitaxy''': This method involves growing a layer of doped semiconductor on top of a substrate.<br />
==Related Pages==<br />
* [[Semiconductor]]<br />
* [[Diode]]<br />
* [[Transistor]]<br />
* [[Integrated circuit]]<br />
* [[P-n junction]]<br />
* [[Amplifier]]<br />
* [[Switch]]<br />
[[Category:Semiconductors]]<br />
[[Category:Electronics]]<br />
[[Category:Materials science]]<br />
{{Electronics-stub}}</div>
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