MOSFET, yotchedwa Metal-Oxide-Semiconductor Field-Effect Transistor, ndi chipangizo chamagetsi chomwe chimagwiritsidwa ntchito kwambiri chomwe chimakhala chamtundu wa Field-Effect Transistor (FET) .ndi MOSFETimakhala ndi chipata chachitsulo, oxide insulating layer (nthawi zambiri Silicon Dioxide SiO₂) ndi semiconductor layer (nthawi zambiri silicon Si). Mfundo yogwiritsira ntchito ndikuwongolera magetsi a chipata kuti asinthe malo amagetsi pamtunda kapena mkati mwa semiconductor, motero kulamulira panopa pakati pa gwero ndi kukhetsa.
Zithunzi za MOSFETakhoza kugawidwa m'magulu awiri: N-channelZithunzi za MOSFET(NMOS) ndi P-channelZithunzi za MOSFET(PMOS). Mu NMOS, pamene magetsi a pachipata ali abwino pokhudzana ndi gwero, njira zoyendetsera mtundu wa n zimapangidwira pamtunda wa semiconductor, zomwe zimalola kuti ma elekitironi aziyenda kuchokera ku gwero kupita kukhetsa. Mu PMOS, pamene magetsi a pachipata ali oipa ponena za gwero, njira zoyendetsera mtundu wa p zimapangidwira pamwamba pa semiconductor, zomwe zimalola mabowo kutuluka kuchokera kugwero kupita kukhetsa.
Zithunzi za MOSFETali ndi zabwino zambiri, monga kuyika kwamphamvu kwambiri, phokoso lochepa, kugwiritsa ntchito mphamvu zochepa, komanso kuphatikizika kosavuta, kotero amagwiritsidwa ntchito kwambiri m'mabwalo a analogi, mabwalo a digito, kasamalidwe ka mphamvu, zamagetsi zamagetsi, makina olumikizirana, ndi magawo ena. Mumagawo ophatikizika,Zithunzi za MOSFETndi magawo oyambira omwe amapanga CMOS (Complementary Metal Oxide Semiconductor) logic circuits. Mabwalo a CMOS amaphatikiza zabwino za NMOS ndi PMOS, ndipo amadziwika ndi kugwiritsa ntchito mphamvu zochepa, kuthamanga kwambiri komanso kuphatikiza kwakukulu.
Kuphatikiza apo,Zithunzi za MOSFETatha kugawidwa m'magulu owonjezera komanso ochepetsera malinga ndi ngati njira zawo zoyendetsera zidapangidwira kale. Mtundu wowonjezeraMOSFETmu chipata voteji ndi ziro pamene njira si conductive, ayenera kutsatira ena chipata voteji kupanga conductive njira; pamene mtundu wa depletionMOSFETmu voteji pachipata ndi zero pamene njira kale conductive, voteji pachipata ntchito kulamulira madutsidwe kanjira.
Powombetsa mkota,MOSFETndi munda zotsatira transistor zochokera zitsulo okusayidi semiconductor dongosolo, amene nthawi panopa pakati gwero ndi kukhetsa ndi kulamulira chipata voteji, ndipo ali osiyanasiyana ntchito ndi zofunika luso luso.
Nthawi yotumiza: Sep-12-2024
