Tsom rau kev lag luam cov qauv thiab txhawb kev tsim cov twj silicon carbide technology
Raws li cov tub ntxhais siv tshuab kev coj ntawm cov cim txuas ntxiv rau lwm tiam, qhov tseem ceeb ntawm SiC (silicon carbide) piv nrog cov IGBT cov tsoos yog tias qhov kev hloov tsis tau zoo heev. Mitsubishi Electric pib tshawb fawb txog kev siv tshuab ua ntej thaum xyoo 1994. Tom qab 24 xyoo, Mitsubishi Electric tau ntse tsim thawj lub thiab ob tiam neeg silicon carbide chips thiab kev ua tiav tiav. Tsis tas li ntawd, Dr. Gourab Majumdar tau hais tias, "Mitsubishi Electric yog sim hloov mus rau peb tiam."
Vim li cas Mitsubishi Electric txoj kev cog lus rau R & D thiab khoom cia rau SiC tshuab? Dr.GourabMajumdar tau ua cov lus txhais. Sib piv nrog cov roj carbon monoxide (silicon carbide) muaj qhov kub hnyav siab (qhov siab tshaj plaws ntawm lub taub roj ntsha silicon yog 170 ° C, thaum silicon carbide tuaj yeem ua tau 200 ° C), tsis muaj hwj chim txaus siab (piv nrog cov roj ntsha silicon, txo qis 70% , kev cia siab rau kev ruaj ntseg thiab lwm yam kev ua tau zoo. Raws li lub hwj chim tivthaiv nrog nws txoj kev txuag hluav taws xob, silicon carbide lawm kuj tau zoo thiab qhib tau cov kev lag luam tshiab. Raws li cov lus ceeb toom, Mitsubishi Electric lub 6-ntim silicon carbide ntau lawm kab nyob rau hauv Kumamoto, Kyushu, Nyiv, thiab tau teem tseg ua huab hwm coj ua hauv 2019.
Tam sim no, daim ntawv thov kev lag luam ntawm inverter li le silicon carbide fais fab tuag cov cuab yeej txuas. Txawm hais tias tus nqi tseem ceeb, kev lag luam nkag ntawm silicon carbide fais fab tuag yog qhov tsawg tsawg, tab sis nrog cov kev siv technology tshiab, cov nqi ntawm silicon carbide yuav nqis sai sai, thiab nws yuav yog cov khoom hauv kev lag luam hauv lub hwj huam hluavtaws tom khw.
Dr.Gourab Majumdar lees tias, "Tam sim no, lub lag luam yog nyob rau lub sij hawm hloov ntawm monocrystalline silicon rau silicon carbide. Peb tab tom nrhiav rau txoj kev lag luam ua ntau paub tab, thiab Mitsubishi Electric kuj yuav yog nyob rau hauv daim teb no. Kev kawm ntau dua, muab ntau dua thiab zoo dua cov khoom rau cov neeg muas zaub. "
