![]() ![]() ![]() Hello and welcome back to simple electronics in the last video we took a look at a printed circuit board now we come to the most important thing the mosfet is a very important component in electronics mosfets is simply short for semiconductor field effect transistor of metal oxide to put it is simpler about just actuating one I have also formally outlined the very important type of transistors the basic material that everything is made of is silicon silicon is a semiconductor to make people here a pedometer area and here in a doped area defined the reduced area is created by silicon enriched with a strange atom of three values because one preferably takes boron, then all are called one I accepted because atom by atom has three outer electrons and an electron can absorb from silicon atoms then everything is called p-doping in this area and these two defined areas are then doped when enriched in the strange valence silicon atom 1 5 because one preferentially takes phosphorus the phosphate omx has five electrons in the outer shell external and is capable of emitting an electron is called here doped and here p doped between the two extremes their areas are formed when the mosfet becomes conductive the so-called inversion scandal then I drew here and after this channel should also be named means that we are seeing a and the channel begins to conduct in german in the mosfet channel why because the area is induced the central area is observed and between the two areas a channel is formed therefore a mosfet channel there is a layer from oxide consisting of silicon oxide, that is, simply silicon in combination with oxygen, this has an electrical insulating effect and is above it, money will vaporize from polysilicon. ![]()
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