Koj puas paub txog kev hloov pauv ntawm MOSFET?

I. Cov ntsiab lus thaum ntxov thiab kev tshawb nrhiav

Tswv yim npaj:Lub invention ntawm MOSFET tuaj yeem taug qab mus txog thaum xyoo 1830s, thaum lub tswv yim ntawm cov nyhuv transistor tau qhia los ntawm German Lilienfeld. Txawm li cas los xij, kev sim nyob rau lub sijhawm no tsis ua tiav hauv kev ua tiav MOSFET qhov ua tau zoo.

Kev kawm ua ntej:Tom qab ntawd, Lub Tswb Labs ntawm Shaw Teki (Shockley) thiab lwm tus kuj tau sim los kawm txog kev tsim cov raj xa dej, tab sis tib yam ua tsis tiav. Txawm li cas los xij, lawv cov kev tshawb fawb tau tsim lub hauv paus rau kev txhim kho tom qab ntawm MOSFET.

II. Kev yug me nyuam thiab kev loj hlob ntawm MOSFETs

Qhov tseem ceeb Breakthrough:Nyob rau hauv 1960, Kahng thiab Atalla yuam kev invented lub MOS teb nyhuv transistor (MOS transistor luv luv) nyob rau hauv tus txheej txheem ntawm kev txhim kho cov kev ua tau zoo ntawm bipolar transistors nrog silicon dioxide (SiO2). Qhov kev tsim kho no tau cim qhov kev nkag ntawm MOSFETs rau hauv kev lag luam kev tsim hluav taws xob sib xyaw.

Kev Txhim Kho Kev Ua Haujlwm:Nrog rau kev txhim kho ntawm cov txheej txheem semiconductor, kev ua haujlwm ntawm MOSFETs txuas ntxiv txhim kho. Piv txwv li, kev khiav hauj lwm voltage ntawm high-voltage hwj chim MOS tuaj yeem ncav cuag 1000V, qhov tsis kam ntawm qhov tsis kam MOS tsuas yog 1 ohm, thiab kev khiav hauj lwm zaus ntawm DC mus rau ntau megahertz.

III. Kev siv dav ntawm MOSFETs thiab thev naus laus zis tshiab

Siv dav:MOSFETs tau siv dav hauv ntau yam khoom siv hluav taws xob, xws li microprocessors, nco, logic circuits, thiab lwm yam, vim tias lawv ua tau zoo heev. Hauv cov khoom siv hluav taws xob niaj hnub no, MOSFETs yog ib qho ntawm cov khoom tseem ceeb.

 

Technology innovation:Txhawm rau ua kom tau raws li qhov yuav tsum tau ua ntawm kev ua haujlwm ntau dua thiab muaj zog dua, IR tsim thawj lub zog MOSFET. Tom qab ntawd, ntau yam tshiab ntawm cov cuab yeej siv hluav taws xob tau qhia, xws li IGBTs, GTOs, IPMs, thiab lwm yam, thiab tau siv ntau thiab ntau dua hauv cov haujlwm muaj feem xyuam.

Material innovation:Nrog rau kev nce qib ntawm thev naus laus zis, cov ntaub ntawv tshiab tau tshawb nrhiav rau kev tsim cov MOSFETs; Piv txwv li, cov ntaub ntawv silicon carbide (SiC) pib tau txais kev saib xyuas thiab kev tshawb fawb vim lawv lub cev zoo tshaj plaws.SiC cov ntaub ntawv muaj cov thermal conductivity ntau dua thiab txwv tsis pub bandwidth piv rau cov khoom siv Si, uas txiav txim siab lawv cov khoom zoo heev xws li tam sim no ceev, siab. breakdown teb lub zog, thiab siab khiav hauj lwm kub.

Plaub, MOSFET txoj kev siv thev naus laus zis thiab kev txhim kho kev coj ua

Dual Gate Transistors:Ntau cov txheej txheem tau sim ua kom lub rooj vag dual transistors los txhim kho kev ua haujlwm ntawm MOSFETs. Ob lub rooj vag MOS transistors muaj shrinkability zoo dua piv rau ib lub rooj vag, tab sis lawv cov shrinkability tseem txwv.

 

Short trench effect:Txoj kev loj hlob tseem ceeb rau MOSFETs yog los daws qhov teeb meem ntawm cov nyhuv luv luv. Cov nyhuv luv luv yuav txwv qhov kev txhim kho ntxiv ntawm cov cuab yeej kev ua tau zoo, yog li nws yog ib qho tsim nyog los kov yeej qhov teeb meem no los ntawm kev txo qhov kev sib tshuam qhov tob ntawm qhov chaw thiab cov cheeb tsam ntws, thiab hloov qhov chaw thiab ntws PN junctions nrog hlau-semiconductor hu.