Semiconductor Class 12 Notes Pdf, Conductivity between a non-conductor or insulator mostly ceramics and a conductor mostly metals characterizes a semiconductor material. Semiconductors can be compounds, like gallium arsenide or cadmium selenide, or pure, like silicon or germanium.
| Pdf Name | Semiconductors Class 12 Notes |
| No. Of Pages | 13 |
| Pdf Size | 458 KB |
| Language | English |
| Source | Mr, PDF Download |
| Download Link | Available |
Semiconductor Class 12 Notes Pdf
What is semiconductor ?
Usually composed of silicon, semiconductors produce less electricity than pure conductors copper or aluminum but more than insulators like glass. Doping is the process of adding impurities to materials to change their conductivity and other properties to suit the needs of the electronic component they are used in.
Understanding semiconductors ?
Understanding semiconductors will help you understand how semiconductor devices can display a variety of useful characteristics, like variable resistance, easier current flow in both directions, and the ability to respond to light and heat. They actually carry out energy conversion, switching, and signal excitation.
Consequently, they are extensively employed in nearly every industry, and the businesses that produce and evaluate them view them as a superior gauge of the state of the economy as a whole.
Semiconductor Class 12 Notes Pdf
Who invented semiconductors?
Karl Braun identified and recorded the first semiconductor diode effect in 1874. Braun noted that when a metal point and a galena crystal come into contact, current can only flow freely in one direction. The first semiconductor device, also known as “cat whiskers” was patented in 1901.
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