Kusankhidwa kwa MOSFET | N-Channel MOSFET Mfundo Zomangamanga

Mapangidwe a Metal-Oxide-SemIconductor a crystal transistor omwe amadziwika kutiMOSFET, pomwe ma MOSFET amagawidwa kukhala ma MOSFET amtundu wa P ndi ma MOSFET amtundu wa N. Mabwalo ophatikizika omwe amapangidwa ndi ma MOSFET amatchedwanso ma MOSFET Integrated circuits, ndi mabwalo ophatikizika a MOSFET opangidwa ndi PMOSFETs ndiZithunzi za NMOSFET amatchedwa mabwalo ophatikizika a CMOSFET.

Chithunzi cha N-Channel MOSFET Circuit 1

MOSFET yokhala ndi gawo la p-type ndi madera awiri ofalikira a n omwe ali ndi mayendedwe apamwamba amatchedwa n-channel.MOSFET, ndi njira yoyendetsera yomwe imayambitsidwa ndi n-mtundu wa conductive channel imayambitsidwa ndi njira zofalitsa n mu njira ziwiri za n-kufalitsa zomwe zimakhala ndi zikhalidwe zapamwamba kwambiri pamene chubu chikuyendetsa. N-channel yokhuthala MOSFETs ali ndi n-njira yoyambitsidwa ndi njira yoyendetsera pamene kukondera kwabwino kumakwezedwa momwe kungathekere pachipata komanso pokhapokha ngati gwero la chipata likufuna mphamvu yogwiritsira ntchito yoposa mphamvu yamagetsi. N-channel depletion MOSFETs ndi omwe sali okonzeka ku magetsi a pachipata (chipata cha gwero lachipata chimafuna mphamvu yogwiritsira ntchito zero). Kuchepa kwa kuwala kwa n-channel MOSFET ndi MOSFET ya n-channel momwe njira yoyendetsera imayambika pomwe magetsi a pachipata (chipata chogwiritsira ntchito magetsi ndi zero) sichinakonzekere.

Mabwalo ophatikizika a NMOSFET ndi gawo lamagetsi la N-channel MOSFET, mabwalo ophatikizika a NMOSFET, kukana kolowera ndikokwera kwambiri, ambiri samafunikira kukumba mayamwidwe amagetsi, motero mabwalo ophatikizika a CMOSFET ndi NMOSFET olumikizidwa popanda kulowa nawo. kuwerengera kuchuluka kwa magetsi oyenda.NMOSFET mabwalo ophatikizika, kuchuluka kwakukulu kwa kusankha kwa gulu limodzi labwino losinthira magetsi oyendera magetsi Magawo ambiri ophatikizika a NMOSFET amagwiritsa ntchito njira imodzi yabwino yosinthira magetsi ozungulira magetsi, ndi 9V zochulukirapo. Mabwalo ophatikizika a CMOSFET amangofunika kugwiritsa ntchito njira yosinthira mphamvu zamagetsi monga mabwalo ophatikizika a NMOSFET, amatha kulumikizidwa ndi mabwalo ophatikizika a NMOSFET nthawi yomweyo. Komabe, kuchokera ku NMOSFET kupita ku CMOSFET kulumikizidwa nthawi yomweyo, chifukwa kukana kwa NMOSFET kukoka mmwamba kumakhala kocheperako kuposa kukana kwa CMOSFET kophatikizika kolumikizira kokakoka, chifukwa chake yesani kugwiritsa ntchito chopinga chomwe chingathe kukokera R, mtengo wa chopinga R ndi. pafupipafupi 2 mpaka 100KΩ.

Kumanga kwa N-channel kukhuthala MOSFETs
Pagawo la P-silicon substrate yokhala ndi mtengo wocheperako wa doping, zigawo ziwiri za N zokhala ndi mtengo wapamwamba wa doping zimapangidwa, ndipo maelekitirodi awiri amapangidwa kuchokera kuzitsulo za aluminiyamu kuti akhale ngati drain d ndi gwero s, motsatana.

Ndiye mu semiconductor chigawo pamwamba masking woonda kwambiri wosanjikiza wa silika insulating chubu, mu kuda - gwero insulating chubu pakati pa kuda ndi gwero la zotayidwa elekitirodi, monga chipata g.

Mu gawo lapansi mumatulutsanso ma elekitirodi B, omwe ali ndi N-channel wandiweyani MOSFET. Gwero la MOSFET ndi gawo lapansi nthawi zambiri zimalumikizidwa palimodzi, chitoliro chochuluka mu fakitale chalumikizidwa kwa nthawi yayitali, chipata chake ndi maelekitirodi ena amatsekedwa pakati pa casing.