Cov Khoom Siv Heterogeneous Ua Haujlwm Zoo Rau RF Acoustic Devices (LNOSiC)
Daim duab qhia ntxaws ntxaws
Txheej Txheem Cej Luam Khoom
Lub RF pem hauv ntej-kawg module yog ib qho tseem ceeb ntawm cov txheej txheem sib txuas lus niaj hnub no, thiab RF lim dej yog cov khoom tseem ceeb tshaj plaws. Kev ua tau zoo ntawm RF lim dej ncaj qha txiav txim siab qhov ua tau zoo ntawm kev siv spectrum, kev ncaj ncees ntawm lub teeb liab, kev siv hluav taws xob, thiab kev ntseeg siab tag nrho ntawm lub kaw lus. Nrog rau kev qhia txog 5G NR zaus bands thiab kev hloov pauv tas mus li rau cov qauv wireless yav tom ntej, RF lim dej yuav tsum ua haujlwm ntawmcov zaus ntau dua, cov bandwidth dav dua, cov theem fais fab siab dua, thiab kev ruaj khov thermal zoo dua.
Tam sim no, cov lim dej RF acoustic zoo tshaj plaws tseem nyob ntawm cov thev naus laus zis xa tawm los, thaum kev txhim kho hauv tsev hauv cov ntaub ntawv, cov qauv khoom siv, thiab cov txheej txheem tsim khoom tseem tsawg. Yog li ntawd, kev ua tiav cov kev daws teeb meem lim dej RF ua tau zoo, nthuav dav, thiab pheej yig yog qhov tseem ceeb heev.
Keeb Kwm Kev Lag Luam thiab Cov Teeb Meem Kev Txawj Ntse
Cov ntxaij lim dej nthwv dej (SAW) thiab cov ntxaij lim dej nthwv dej loj (BAW) yog ob lub thev naus laus zis tseem ceeb hauv kev siv mobile RF pem hauv ntej vim lawv qhov kev xaiv zaus zoo heev, qhov zoo tshaj plaws (Q), thiab qhov poob qis. Ntawm lawv, cov ntxaij lim dej SAW muab cov txiaj ntsig meej meej hauvtus nqi, kev ua tiav ntawm cov txheej txheem, thiab kev tsim khoom loj, ua rau lawv yog cov kev daws teeb meem tseem ceeb hauv kev lag luam lim dej RF hauv tsev.
Txawm li cas los xij, cov lim dej SAW ib txwm muaj cov kev txwv thaum siv rau cov kab ke sib txuas lus 4G thiab 5G siab heev, suav nrog:
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Qhov chaw nruab nrab zaus txwv, txwv kev pab them nqi ntawm nruab nrab- thiab siab-band 5G NR spectrum
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Tsis txaus Q factor, txwv tsis pub bandwidth thiab kev ua haujlwm ntawm lub system
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Kev hloov pauv kub hais tawm
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Muaj peev xwm tswj hwm lub zog tsawg
Kev kov yeej cov kev txwv no thaum khaws cia cov qauv thiab cov txheej txheem zoo ntawm SAW thev naus laus zis yog qhov kev sib tw tseem ceeb rau cov khoom siv RF acoustic tiam tom ntej.
Kev Tsim Qauv Lub Tswv Yim thiab Kev Siv Tshuab
Los ntawm lub cev nqaij daim tawv:
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Kev ua haujlwm ntau duayuav tsum muaj cov qauv suab nrog cov theem siab dua nyob rau hauv cov xwm txheej wavelength zoo sib xws
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Bandwidth dav duaxav tau cov coefficients coupling electromechanical loj dua
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Kev tswj hwm fais fab siab duanyob ntawm cov substrates uas muaj kev ua tau zoo heev ntawm thermal conductivity, lub zog kho tshuab, thiab kev poob qis ntawm acoustic
Raws li qhov kev nkag siab no,peb pab neeg ua haujlwm engineeringtau tsim ib txoj kev sib koom ua ke tshiab los ntawm kev sib txuasib leeg-siv lead ua lithium niobate (LiNbO₃, LN) piezoelectric nyias zaj duab xisnrogcov khoom siv txhawb nqa uas muaj suab nrov heev, muaj kev coj ua kub siab, xws li silicon carbide (SiC). Cov qauv sib xyaw ua ke no hu uaLNOSiC.
Cov Txuj Ci Tseem Ceeb: LNOSiC Heterogeneous Substrate
Lub platform LNOSiC muab cov txiaj ntsig zoo ntawm kev ua haujlwm los ntawm kev sib koom ua ke ntawm cov khoom siv thiab cov qauv:
Kev Sib Txuas Hluav Taws Xob Siab
Cov yeeb yaj kiab nyias nyias LN ib leeg-siv lead ua ke qhia txog cov khoom piezoelectric zoo heev, ua rau muaj kev txhawb nqa zoo ntawm cov nthwv dej acoustic (SAW) thiab cov nthwv dej Lamb nrog cov coefficients sib txuas electromechanical loj, yog li txhawb nqa cov qauv lim dej RF dav dav.
Kev Ua Haujlwm Zaus Siab thiab Qib Siab
Qhov ceev ntawm lub suab nrov ntawm cov khoom siv txhawb nqa ua rau muaj kev ua haujlwm ntau dua thaum tseem tiv thaiv kev xau hluav taws xob acoustic, ua rau muaj cov yam ntxwv zoo dua.
Kev Tswj Xyuas Thermal Zoo Tshaj Plaws
Cov khoom siv txhawb nqa xws li SiC muab kev ua kom sov zoo heev, txhim kho lub peev xwm tswj hwm lub zog thiab kev ruaj khov ua haujlwm ntev nyob rau hauv cov xwm txheej fais fab RF siab.
Kev Sib Tw thiab Kev Loj Hlob ntawm Cov Txheej Txheem
Cov khoom siv sib txawv no sib xws nrog cov txheej txheem tsim khoom SAW uas twb muaj lawm, ua rau kev hloov pauv thev naus laus zis yooj yim, kev tsim khoom loj tuaj, thiab kev tsim khoom pheej yig.
Kev Sib Txuas Lus ntawm Cov Khoom Siv thiab Cov Txiaj Ntsig ntawm Qib System
Lub LNOSiC heterogeneous substrate txhawb nqa ntau lub RF acoustic device architectures ntawm ib lub platform khoom siv, suav nrog:
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Cov lim dej SAW ib txwm muaj
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Cov khoom siv SAW uas them rau qhov kub thiab txias (TC-SAW)
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Cov khoom siv SAW ua haujlwm siab (IHP-SAW) uas ua kom cov insulator zoo dua
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Cov resonators acoustic uas muaj zaus ntau zaus
Hauv paus ntsiab lus, ib lub LNOSiC wafer tuaj yeem txhawb nqaCov khoom siv lim dej RF ntau-band uas npog 3G, 4G, thiab 5G daim ntawv thov, muab qhov tseeb"Txhua yam hauv ib qho" RF acoustic substrate kev daws teeb meemTxoj kev no txo qhov nyuaj ntawm lub kaw lus thaum ua kom muaj kev ua tau zoo dua thiab muaj kev sib koom ua ke ntau dua.
Tus Nqi Tseem Ceeb thiab Kev Cuam Tshuam Hauv Kev Lag Luam
Los ntawm kev khaws cia cov nqi thiab cov txheej txheem zoo ntawm SAW thev naus laus zis thaum ua tiav qhov kev dhia loj hauv kev ua tau zoo, LNOSiC heterogeneous substrate muab atxoj kev siv tau, tsim tau, thiab nthuav dav taumus rau cov khoom siv RF acoustic siab heev.
Cov kev daws teeb meem no tsis yog tsuas yog txhawb nqa kev xa tawm loj hauv 4G thiab 5G kev sib txuas lus xwb tab sis kuj tsim kom muaj cov khoom siv thiab cov thev naus laus zis ruaj khov rau yav tom ntej cov khoom siv RF acoustic siab thiab muaj zog. Nws sawv cev rau ib kauj ruam tseem ceeb rau kev hloov pauv hauv tsev ntawm cov lim dej RF siab thiab kev vam khom thev naus laus zis mus sij hawm ntev.
Cov Lus Nug Feem Ntau ntawm LNOSIC
Q1: LNOSiC txawv li cas ntawm cov khoom siv SAW ib txwm muaj?
A:Cov khoom siv SAW ib txwm muaj feem ntau yog tsim los ntawm cov khoom siv piezoelectric loj, uas txwv qhov zaus, Q factor, thiab kev tswj hwm lub zog. LNOSiC sib xyaw ua ke ib zaj duab xis LN nyias nyias nrog lub substrate ceev ceev, thermal-conductivity siab, ua rau muaj kev ua haujlwm zaus siab dua, bandwidth dav dua, thiab muaj peev xwm ua haujlwm tau zoo dua thaum tseem khaws cia SAW cov txheej txheem sib xws.
Q2: LNOSiC piv rau cov thev naus laus zis BAW/FBAR li cas?
A:Cov lim dej BAW zoo heev ntawm cov zaus siab heev tab sis xav tau cov txheej txheem tsim khoom nyuaj thiab raug nqi ntau dua. LNOSiC muab kev daws teeb meem ntxiv los ntawm kev txuas ntxiv cov thev naus laus zis SAW mus rau hauv cov kab zaus siab dua nrog tus nqi qis dua, kev loj hlob zoo dua, thiab kev ywj pheej ntau dua rau kev koom ua ke ntau-band.
Q3: LNOSiC puas haum rau 5G NR daim ntawv thov?
A:Yog. Qhov ceev ntawm lub suab siab, kev sib txuas hluav taws xob loj, thiab kev tswj hwm thermal zoo dua ntawm LNOSiC ua rau nws zoo rau cov lim dej 5G NR nruab nrab thiab siab, suav nrog cov ntawv thov uas xav tau bandwidth dav thiab kev tswj hwm fais fab siab.
Txog Peb
XKH muaj kev txawj ntse hauv kev tsim khoom, kev tsim khoom, thiab kev muag khoom ntawm cov iav kho qhov muag tshwj xeeb thiab cov khoom siv siv lead ua tshiab. Peb cov khoom siv rau cov khoom siv hluav taws xob kho qhov muag, cov khoom siv hluav taws xob rau cov neeg siv khoom, thiab cov tub rog. Peb muab cov khoom siv kho qhov muag Sapphire, cov ntaub thaiv lub xov tooj ntawm tes, Ceramics, LT, Silicon Carbide SIC, Quartz, thiab semiconductor crystal wafers. Nrog kev txawj ntse thiab cov cuab yeej siv tshiab, peb ua tau zoo hauv kev ua cov khoom tsis yog tus qauv, lub hom phiaj yog ua lub tuam txhab ua khoom siv hluav taws xob kho qhov muag zoo tshaj plaws.
