Nrog txoj kev loj hlob sai ntawm augmented reality (AR) thev naus laus zis, tsom iav ntse, ua ib qho tseem ceeb ntawm AR thev naus laus zis, tau maj mam hloov ntawm lub tswv yim mus rau qhov tseeb. Txawm li cas los xij, kev siv dav dav ntawm cov tsom iav ntse tseem tab tom ntsib ntau yam kev sib tw, tshwj xeeb yog hais txog kev siv thev naus laus zis, qhov hnyav, kub dissipation, thiab kev ua haujlwm kho qhov muag. Nyob rau hauv xyoo tas los no, silicon carbide (SiC), raws li cov khoom siv tshiab, tau siv dav hauv ntau lub zog semiconductor li thiab modules. Tam sim no nws tab tom ua nws txoj hauv kev mus rau AR tsom iav teb ua cov khoom tseem ceeb. Silicon carbide lub siab refractive index, zoo heev tshav kub dissipation zog, thiab siab hardness, ntawm lwm yam nta, qhia tau hais tias muaj peev xwm tseem ceeb rau daim ntawv thov nyob rau hauv cov zaub technology, lub teeb yuag tsim, thiab tshav kub dissipation ntawm AR tsom iav. Peb tuaj yeem muab tauSiC wafer, uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov cheeb tsam no. Hauv qab no, peb yuav tshawb xyuas seb silicon carbide tuaj yeem coj cov kev hloov pauv hloov mus rau cov iav ntse los ntawm cov khoom ntawm nws cov khoom, kev siv technology, kev lag luam kev lag luam, thiab kev cia siab rau yav tom ntej.
Cov khoom thiab qhov zoo ntawm Silicon Carbide
Silicon carbide yog ib tug dav bandgap semiconductor khoom nrog zoo heev zog xws li siab hardness, siab thermal conductivity, thiab siab refractive index. Cov yam ntxwv no ua rau nws muaj peev xwm siv tau hauv cov khoom siv hluav taws xob, cov khoom siv kho qhov muag, thiab kev tswj xyuas thermal. Tshwj xeeb tshaj yog nyob rau hauv cov tsom iav ntse, qhov zoo ntawm silicon carbide feem ntau yog tshwm sim hauv cov hauv qab no:
High Refractive Index: Silicon carbide muaj qhov ntsuas qhov ntsuas siab tshaj 2.6, ntau dua li cov khoom siv ib txwm muaj xws li resin (1.51-1.74) thiab iav (1.5-1.9). Lub siab refractive Performance index txhais tau hais tias silicon carbide tuaj yeem cuam tshuam lub teeb pom kev zoo, txo lub teeb lub zog poob, yog li txhim kho cov duab ci thiab qhov pom (FOV). Piv txwv li, Meta's Orion AR tsom iav siv silicon carbide waveguide thev naus laus zis, ua tiav 70-degree kev pom, deb tshaj li 40-degree teb ntawm kev pom ntawm cov khoom iav tsoos.
Thaum tshav kub kub Dissipation zoo heev: Silicon carbide muaj cov thermal conductivity ntau pua zaus ntau dua li cov iav zoo tib yam, ua kom muaj cua sov sai. Thaum tshav kub kub dissipation yog ib qho teeb meem tseem ceeb rau AR tsom iav, tshwj xeeb tshaj yog thaum lub teeb pom kev zoo thiab kev siv ntev. Silicon carbide lo ntsiab muag tuaj yeem hloov cov cua kub sai sai los ntawm cov khoom siv kho qhov muag, txhim kho kev ruaj ntseg thiab lub neej ntev ntawm lub cuab yeej. Peb tuaj yeem muab SiC wafer uas ua kom muaj kev tswj xyuas thermal zoo hauv cov ntawv thov.
High Hardness thiab Wear Resistance: Silicon carbide yog ib qho ntawm cov ntaub ntawv nyuaj tshaj plaws paub, thib ob tsuas yog pob zeb diamond. Qhov no ua rau silicon carbide lo ntsiab muag ntau hnav-resistant, haum rau kev siv txhua hnub. Hauv qhov sib piv, cov ntaub ntawv iav thiab cov khoom siv resin feem ntau ua rau khawb, uas cuam tshuam rau cov neeg siv kev paub.
Anti-Rainbow Effect: Cov khoom siv iav ib txwm siv hauv AR tsom iav zoo li tsim cov nyhuv zaj sawv, qhov twg lub teeb ci ntsa iab cuam tshuam tawm ntawm lub ntsej muag waveguide, tsim cov qauv xim zoo nkauj. Silicon carbide tuaj yeem tshem tawm qhov teeb meem no tau zoo los ntawm kev ua kom zoo ntawm cov qauv grating, yog li txhim kho cov duab zoo thiab tshem tawm cov nyhuv zaj sawv los ntawm kev cuam tshuam ntawm lub teeb ci ntawm lub teeb ntawm lub waveguide nto.
Technological Breakthroughs ntawm Silicon Carbide hauv AR Glasses
Nyob rau hauv xyoo tas los no, thev naus laus zis los ntawm silicon carbide hauv AR tsom iav tau tsom mus rau kev txhim kho ntawm diffraction waveguide lo ntsiab muag. Lub diffraction waveguide yog ib qho kev siv thev naus laus zis uas sib txuas cov teeb pom kev sib txawv ntawm lub teeb nrog cov qauv waveguide kom nthuav tawm cov duab tsim los ntawm cov khoom siv kho qhov muag los ntawm cov grating hauv lub lens. Qhov no txo qhov tuab ntawm lub lens, ua rau AR tsom iav saib ze dua rau cov tsom iav tsis tu ncua.
Thaum Lub Kaum Hli 2024, Meta (yav dhau los Facebook) tau qhia txog kev siv silicon carbide-etched waveguides ua ke nrog microLEDs hauv nws Orion AR tsom iav, daws teeb meem tseem ceeb hauv thaj chaw xws li kev pom, qhov hnyav, thiab cov khoom siv kho qhov muag. Meta tus kws tshawb fawb kho qhov muag Pascual Rivera tau hais tias silicon carbide waveguide thev naus laus zis tau hloov pauv cov duab zoo ntawm AR tsom iav, hloov qhov kev paub dhau los ntawm "disco-pob zoo li zaj sawv teeb pom kev" mus rau "kev ua yeeb yam zoo li kev zoo nkauj."
Nyob rau lub Kaum Ob Hlis 2024, XINKEHUI tau ua tiav lub ntiaj teb thawj 12-nti high-purity semi-insulating silicon carbide ib leeg siv lead ua substrate, kos ib qho kev sib tw loj hauv thaj tsam ntawm cov substrate loj. Cov thev naus laus zis no yuav ua kom nrawm rau daim ntawv thov ntawm silicon carbide hauv kev siv tshiab xws li AR tsom iav thiab cov dab dej kub. Piv txwv li, 12-nti silicon carbide wafer tuaj yeem tsim 8-9 khub ntawm AR tsom iav lo ntsiab muag, txhim kho kev ua haujlwm zoo. Peb tuaj yeem muab SiC wafer los txhawb cov ntawv thov hauv AR tsom iav kev lag luam.
Tsis ntev los no, silicon carbide substrate tsum XINKEHUI koom tes nrog micro-nano optoelectronic ntaus ntawv tuam txhab MOD MICRO-NANO los tsim kom muaj kev sib koom tes tsom mus rau kev txhim kho thiab kev lag luam nce qib ntawm AR diffraction waveguide lens technology. XINKEHUI, nrog rau nws cov kev txawj ntse nyob rau hauv silicon carbide substrates, yuav muab high-zoo substrates rau MOD MICRO-NANO, uas yuav leverage nws zoo nyob rau hauv micro-nano kho qhov muag technology thiab AR waveguide ua rau ntxiv optimize qhov kev ua tau zoo ntawm diffraction waveguides. Qhov kev sib koom tes no yuav tsum tau ua kom cov thev naus laus zis ua tiav hauv AR tsom iav, txhawb kev lag luam kev txav mus rau kev ua tau zoo dua thiab cov qauv sib dua.
Ntawm 2025 SPIE AR|VR|MR exhibition, MOD MICRO-NANO tau nthuav tawm nws lub cim thib ob ntawm silicon carbide AR tsom iav lo ntsiab muag, hnyav tsuas yog 2.7 grams thiab nrog lub thickness ntawm tsuas yog 0.55 millimeters, sib dua li cov looj tsom iav dub niaj hnub, muab cov neeg siv yuav luag tsis pom kev hnav, ua tiav "lub teeb" tiag tiag.
Daim ntawv thov Case ntawm Silicon Carbide hauv AR Glasses
Hauv kev tsim cov txheej txheem ntawm silicon carbide waveguides, Meta pab pawg tau kov yeej cov teeb meem ntawm slanted etching tshuab. Tus thawj saib xyuas kev tshawb fawb Nihar Mohanty piav qhia tias slanted etching yog ib qho kev siv tshuab grating uas tsis yog ib txwm siv los ua cov kab ntawm lub kaum sab xis kom ua kom lub teeb sib txuas thiab kev ua haujlwm zoo. Qhov kev ua tiav no tau tsim lub hauv paus rau kev siv ntau ntawm silicon carbide hauv AR tsom iav.
Meta's Orion AR tsom iav yog ib daim ntawv thov sawv cev ntawm silicon carbide thev naus laus zis hauv AR. Los ntawm kev siv silicon carbide waveguide thev naus laus zis, Orion ua tiav 70-degree teb ntawm kev pom thiab daws teeb meem zoo xws li ghosting thiab zaj sawv nyhuv.
Giuseppe Carafiore, Meta's AR waveguide thev naus laus zis tus thawj coj, tau sau tseg tias silicon carbide lub siab refractive index thiab thermal conductivity ua rau nws yog ib qho khoom siv zoo rau AR tsom iav. Tom qab xaiv cov khoom, qhov kev sib tw tom ntej yog los tsim lub waveguide, tshwj xeeb tshaj yog cov txheej txheem slanted etching rau grating. Carafiore piav qhia tias lub grating, uas yog lub luag haujlwm rau kev sib txuas lub teeb rau hauv thiab tawm ntawm lub lens, yuav tsum siv slanted etching. Cov kab etched tsis yog txheej txheem vertically tab sis raug faib rau ntawm lub kaum sab xis. Nihar Mohanty ntxiv tias lawv yog thawj pab neeg thoob ntiaj teb kom ua tiav slanted etching ncaj qha ntawm cov khoom siv. Hauv 2019, Nihar Mohanty thiab nws pab pawg tau tsim cov kab ntau lawm. Ua ntej ntawd, tsis muaj cov cuab yeej siv rau etch silicon carbide waveguides, thiab tsis muaj kev siv thev naus laus zis tuaj yeem ua tau sab nraud ntawm chav kuaj.
Kev sib tw thiab yav tom ntej Prospects ntawm Silicon Carbide
Txawm hais tias silicon carbide qhia tau hais tias muaj peev xwm zoo hauv AR tsom iav, nws daim ntawv thov tseem ntsib ntau yam teeb meem. Tam sim no, cov khoom siv silicon carbide kim vim nws qhov kev loj hlob qeeb thiab kev ua haujlwm nyuaj. Piv txwv li, ib lub lens silicon carbide rau Meta's Orion AR tsom iav raug nqi ntau npaum li $ 1,000, ua rau nws nyuaj rau kev ua kom tau raws li qhov xav tau ntawm cov neeg siv khoom lag luam. Txawm li cas los xij, nrog kev txhim kho sai ntawm kev lag luam tsheb hluav taws xob, tus nqi ntawm silicon carbide tau maj mam txo qis. Tsis tas li ntawd, txoj kev loj hlob ntawm cov substrates loj (xws li 12-nti wafers) yuav ua rau tus nqi txo thiab txhim kho kev ua haujlwm.
Lub siab hardness ntawm silicon carbide kuj ua rau nws nyuaj rau cov txheej txheem, tshwj xeeb tshaj yog nyob rau hauv micro-nano qauv fabrication, ua rau cov nqi qis. Nyob rau hauv lub neej yav tom ntej, nrog kev koom tes sib sib zog nqus ntawm silicon carbide substrate lwm tus neeg thiab micro-nano optical manufacturers, qhov teeb meem no yuav tsum tau daws. Silicon carbide daim ntawv thov nyob rau hauv AR tsom iav yog tseem nyob rau hauv nws cov theem thaum ntxov, yuav tsum tau ntau tuam txhab uas muag los nqis peev rau optical-qib silicon carbide kev tshawb fawb thiab kev tsim khoom siv. Pab pawg Meta cia siab tias lwm cov tuam txhab lag luam yuav pib tsim lawv tus kheej cov cuab yeej siv, vim tias ntau lub tuam txhab nqis peev hauv kev tshawb fawb kho qhov muag-qib silicon carbide thiab cov khoom siv, cov neeg siv khoom-qib AR tsom iav kev lag luam ecosystem yuav muaj zog dua.
Xaus
Silicon carbide, nrog rau nws qhov siab refractive index, zoo heev tshav kub dissipation, thiab siab hardness, yog los ua ib tug tseem ceeb khoom nyob rau hauv lub teb ntawm AR tsom iav. Los ntawm kev sib koom tes ntawm XINKEHUI thiab MOD MICRO-NANO rau kev ua tiav daim ntawv thov ntawm silicon carbide hauv Meta's Orion AR tsom iav, lub peev xwm ntawm silicon carbide hauv cov tsom iav ntse tau ua kom pom tag nrho. Txawm hais tias muaj kev sib tw xws li cov nqi thiab cov teeb meem kev lag luam, raws li kev lag luam saw loj hlob thiab thev naus laus zis txuas ntxiv mus, silicon carbide yuav tsum ci hauv AR tsom iav, tsav cov tsom iav ntse mus rau kev ua tau zoo dua, sib dua, thiab kev siv dav dua. Nyob rau hauv lub neej yav tom ntej, silicon carbide yuav dhau los ua cov khoom siv tseem ceeb hauv AR kev lag luam, ua rau lub sijhawm tshiab ntawm cov tsom iav ntse.
Lub peev xwm ntawm silicon carbide tsis txwv rau AR tsom iav; nws cov ntawv thov kev lag luam hla hauv electronics thiab photonics kuj qhia txog kev cia siab loj. Piv txwv li, daim ntawv thov ntawm silicon carbide hauv quantum xam thiab cov khoom siv hluav taws xob muaj zog tau tshawb nrhiav. Raws li thev naus laus zis nce qib thiab cov nqi txo qis, silicon carbide yuav tsum ua lub luag haujlwm tseem ceeb hauv ntau thaj chaw, ua kom cov kev lag luam muaj feem cuam tshuam. Peb tuaj yeem muab SiC wafer rau ntau daim ntawv thov, txhawb kev nce qib hauv AR thev naus laus zis thiab dhau mus.
Yam khoom
8 nti 200mm 4H-N SiC Wafer Conductive dummy tshawb fawb qib
Sic Substrate Silicon Carbide Wafer 4H-N Hom Siab Hardness Corrosion Resistance Prime Qib Polishing
Post lub sij hawm: Apr-01-2025