Xov Xwm Kev Lag Luam: IVWorks'reGaN thev naus laus zis ua rau thawj 742GHz GaN HEMT

Daim Duab: Ib tug kws ua haujlwm IVWorks kho qhov chaw plasma rau kev xa mus rau hauv qhov system Hybrid MBE uas muaj ntau lawm, txhawb nqa kev loj hlob ntawm GaN epitaxial uas muaj kev sib npaug zoo thiab zoo.

Ib lub gallium nitride (GaN) high-electron-mobility transistor (HEMT) uas siv cov thev naus laus zis reGaN selective regrowth ntawm IVWorks Co Ltd ntawm Daejeon, Kaus Lim Qab Teb tau dhau los ua lub ntiaj teb thawj GaN transistor kom ua tiav qhov siab tshaj plaws oscillation zaus (f_{siab tshaj plaws}) tshaj 700GHz. Qhov no tau pom tseeb los ntawm 45nm GaN HEMT ntaus ntawv tsim los ntawm xibfwb Dae-hyun Kim pab pawg tshawb fawb hauv Tsev Kawm Ntawv Electronics Engineering ntawm Kyungpook National University thiab tau tshaj tawm rau hnub tim 18 Lub Rau Hli ntawm 2026 IEEE/JSAP Symposium on VLSI Technology & Circuits hauv Honolulu, Hawaii, Tebchaws Meskas.

Cov pab pawg tshawb fawb tau tsim ib lub transistor GaN nrog lub rooj vag ntev 45nm thiab ua tiav cov ntaub ntawv f_{siab tshaj plaws}ntawm 742GHz, tsim kom muaj tus qauv tshiab rau kev ua tau zoo ntawm RF hauv GaN transistor technology. Lub cuab yeej kuj tau ua tiav cov ntaub ntawv nruab nrab zaus metric (favg) ntawm 497GHz, tus nqi siab tshaj plaws uas tau tshaj tawm txog niaj hnub no rau txhua lub tshuab GaN transistor. Cov txiaj ntsig no qhia tau tias GaN semiconductors muaj kev sib tw ua tau zoo txaus txawm tias nyob rau hauv ultra-high-frequency regime thiab tuaj yeem ua haujlwm ua lub platform rau yav tom ntej sub-terahertz thiab terahertz electronic systems, IVWorks hais.

Txawm hais tias indium phosphide (InP)-based transistors tau kav ntev hauv sub-terahertz zaus vim lawv cov khoom siv thauj hluav taws xob zoo heev, lawv qhov hluav taws xob tawg qis tsis txwv lub zog tso zis thiab qhov system scalability. Qhov sib piv, GaN muab kev sib xyaw ua ke ntawm lub zog hluav taws xob tawg siab, lub zog ceev ceev, thiab kev ua kom sov zoo heev, ua rau lawv nyiam cov neeg sib tw rau tiam tom ntej high-frequency thiab high-power applications. Txawm li cas los xij, kev ua tiav ultra-high-frequency kev ua tau zoo nrog GaN tseem yog qhov nyuaj heev. Txhawm rau kov yeej cov kev txwv no, pab pawg tshawb fawb tau siv cov txheej txheem rooj vag 45nm siab heev thiab cov qauv khoom siv kho kom zoo tshaj plaws kom ua tiav qhov siab tshaj plaws.

Ib qho tseem ceeb uas ua rau muaj kev pab cuam yog IVWorks cov thev naus laus zis reGaN xaiv rov qab loj hlob. Tsim los ntawm IVWorks xwb, reGaN xaiv rov qab loj hlob cov n-hom GaN uas muaj cov tshuaj ntxiv ntau hauv thaj chaw pib thiab thaj chaw ntws, txo qhov kev tiv thaiv kev sib cuag. Ua tus khub koom tes tshawb fawb hauv txoj kev tshawb fawb no, IVWorks tau ua pov thawj tias qhov kev sib npaug zoo heev thoob plaws tag nrho 4-nti wafer thiab ua tiav qhov kev rov ua dua zoo heev. Ntxiv mus, lub tuam txhab tau txo qhov kev tiv thaiv interface rov qab loj hlob (R_{rau hauv}) rau 0.027Ω-mm, mus txog qhov kev txwv theoretical uas ua tau ntawm qhov concentration ntawm cov cab kuj.

"Kev tshawb fawb no thawb cov kev txwv ntawm RF kev ua tau zoo ntawm GaN HEMTs mus rau qib tshiab thiab qhia txog lub peev xwm ntawm GaN semiconductors rau kev siv ultra-high-frequency los ntawm kev ua qauv qhia thawj zaug ntawm GaN HEMT nrog h tshaj 700GHz," hais tias xibfwb Dae-hyun Kim. "Kev tshawb fawb no muaj lub ntsiab lus tshwj xeeb ua piv txwv zoo ntawm kev koom tes hauv kev lag luam-kev kawm, kev sib txuas ua ke ntawm kev loj hlob epitaxial thiab kev loj hlob rov qab los ntawm kev lag luam nrog kev txawj ntse ntawm tsev kawm ntawv hauv kev tshawb fawb txog khoom siv thiab circuit," nws hais ntxiv.

"Los ntawm qhov kev ua tiav no, peb npaj yuav ua kom nrawm dua rau kev tsim cov khoom siv hluav taws xob GaN tiam tom ntej uas tsom mus rau cov ntawv thov terahertz-zaus rau kev sib txuas lus 6G thiab cov thev naus laus zis tiv thaiv siab heev."

IVWorks hais tias qhov kev ua tiav no qhia ntxiv txog lub peev xwm ntawm GaN thev naus laus zis kom nthuav dav dhau ntawm RF ib txwm muaj thiab cov khoom siv hluav taws xob mus rau hauv cov ntawv thov sub-terahertz thiab terahertz tshiab, suav nrog 6G kev sib txuas lus, cov kab ke radar siab heev, kev sib txuas lus satellite, thiab cov khoom siv tiv thaiv tiam tom ntej.

"reGaN yog ib lub thev naus laus zis tseem ceeb uas twb tau dhau qhov kev tsim nyog zoo ntawm lub chaw tsim khoom loj thiab tau txais yuav rau kev tsim khoom ntau," IVWorks tus CEO Young-kyun Noh hais. "Qhov kev ua tiav no qhia tau tias peb lub platform Hybrid-MBE-based reGaN tsis yog tsuas yog npaj rau kev tsim khoom xwb tab sis kuj yog lub thev naus laus zis tseem ceeb rau cov khoom siv hluav taws xob GaN sub-terahertz thiab terahertz tiam tom ntej," nws hais ntxiv. "Peb zoo siab pom IVWorks thev naus laus zis pab txhawb rau lub ntiaj teb kev tshawb fawb tseem ceeb."