Nrog rau kev loj hlob sai ntawm cov thev naus laus zis augmented reality (AR) thev naus laus zis, cov tsom iav ntse, ua tus nqa khoom tseem ceeb ntawm AR thev naus laus zis, maj mam hloov pauv ntawm lub tswv yim mus rau qhov tseeb. Txawm li cas los xij, kev siv dav dav ntawm cov tsom iav ntse tseem ntsib ntau yam teeb meem kev siv tshuab, tshwj xeeb tshaj yog hais txog cov thev naus laus zis tso saib, qhov hnyav, kev tso cua sov, thiab kev ua haujlwm ntawm qhov muag. Nyob rau xyoo tas los no, silicon carbide (SiC), ua cov khoom siv tshiab, tau siv dav hauv ntau yam khoom siv hluav taws xob semiconductor thiab modules. Tam sim no nws tab tom ua nws txoj hauv kev mus rau hauv daim teb tsom iav AR ua cov khoom siv tseem ceeb. Silicon carbide lub refractive index siab, cov khoom tso cua sov zoo heev, thiab qhov nyuaj siab, ntawm lwm yam ntxwv, qhia txog lub peev xwm tseem ceeb rau kev siv hauv cov thev naus laus zis tso saib, kev tsim qauv sib dua, thiab kev tso cua sov ntawm AR tsom iav. Peb tuaj yeem muabSiC wafer, uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov cheeb tsam no. Hauv qab no, peb yuav tshawb nrhiav seb silicon carbide tuaj yeem coj kev hloov pauv tshiab rau cov tsom iav ntse li cas los ntawm cov yam ntxwv ntawm nws cov khoom, kev tshawb pom tshiab, kev siv lag luam, thiab kev cia siab yav tom ntej.
Cov Khoom thiab Cov Zoo ntawm Silicon Carbide
Silicon carbide yog ib yam khoom siv semiconductor dav dav uas muaj cov yam ntxwv zoo heev xws li kev tawv siab, kev ua kom sov siab, thiab qhov ntsuas refractive siab. Cov yam ntxwv no ua rau nws muaj peev xwm siv tau rau hauv cov khoom siv hluav taws xob, cov khoom siv kho qhov muag, thiab kev tswj cua sov. Tshwj xeeb hauv kev siv cov tsom iav ntse, qhov zoo ntawm silicon carbide feem ntau pom tseeb hauv cov hauv qab no:
High Refractive Index: Silicon carbide muaj refractive index ntawm ntau dua 2.6, siab dua li cov ntaub ntawv ib txwm muaj xws li resin (1.51-1.74) thiab iav (1.5-1.9). Ib qho refractive index siab txhais tau tias silicon carbide tuaj yeem txwv tsis pub lub teeb kis tau zoo dua, txo qhov poob ntawm lub teeb, yog li txhim kho qhov ci ntsa iab thiab thaj chaw pom (FOV). Piv txwv li, Meta's Orion AR tsom iav siv silicon carbide waveguide technology, ua tiav thaj chaw pom 70-degree, ntau dua li thaj chaw pom 40-degree ntawm cov ntaub ntawv iav ib txwm muaj.
Kev Tshem Tawm Kub Zoo Kawg Nkaus: Silicon carbide muaj cov thermal conductivity ntau pua npaug ntau dua li cov iav ib txwm muaj, ua rau muaj kev xa cua sov sai. Kev tshem tawm cua sov yog qhov teeb meem tseem ceeb rau cov tsom iav AR, tshwj xeeb tshaj yog thaum lub sijhawm tso saib qhov kaj siab thiab siv ntev. Cov iav silicon carbide tuaj yeem hloov pauv cov cua sov uas tsim los ntawm cov khoom siv kho qhov muag sai sai, ua kom muaj kev ruaj khov thiab lub neej ntev ntawm lub cuab yeej. Peb tuaj yeem muab SiC wafer uas ua kom muaj kev tswj hwm thermal zoo hauv cov ntawv thov zoo li no.
Kev Nyuaj Siab thiab Kev Tiv Thaiv Kev Hnav: Silicon carbide yog ib qho ntawm cov ntaub ntawv nyuaj tshaj plaws, thib ob tsuas yog pob zeb diamond. Qhov no ua rau cov iav silicon carbide tiv taus kev hnav ntau dua, tsim nyog rau kev siv txhua hnub. Qhov sib piv, cov iav thiab cov ntaub ntawv resin feem ntau raug khawb, uas cuam tshuam rau kev paub ntawm tus neeg siv.
Cov Nyhuv Tiv Thaiv Zaj Duab Xis: Cov khoom siv iav ib txwm muaj hauv cov tsom iav AR feem ntau tsim cov nyhuv zaj sawv, qhov twg lub teeb ci ntsa iab tawm ntawm qhov chaw waveguide, tsim cov qauv xim teeb pom kev zoo. Silicon carbide tuaj yeem tshem tawm qhov teeb meem no tau zoo los ntawm kev ua kom zoo dua cov qauv grating, yog li txhim kho qhov zoo ntawm kev tso saib thiab tshem tawm cov nyhuv zaj sawv los ntawm kev cuam tshuam ntawm lub teeb ci ntsa iab ntawm qhov chaw waveguide.
Kev Tshawb Fawb Txog Silicon Carbide Hauv Cov Iav AR
Nyob rau xyoo tas los no, kev tshawb pom tshiab ntawm silicon carbide hauv AR tsom iav tau tsom mus rau kev tsim cov iav diffraction waveguide. Lub diffraction waveguide yog ib qho thev naus laus zis uas muab cov teeb pom kev zoo diffraction nrog cov qauv waveguide los nthuav cov duab los ntawm cov khoom siv kho qhov muag los ntawm lub grating hauv lub lens. Qhov no txo qhov tuab ntawm lub lens, ua rau AR tsom iav zoo li cov tsom iav ib txwm muaj.
Thaum Lub Kaum Hli Ntuj xyoo 2024, Meta (yav tas los hu ua Facebook) tau qhia txog kev siv cov silicon carbide-etched waveguides ua ke nrog microLEDs hauv nws cov tsom iav Orion AR, daws cov teeb meem tseem ceeb hauv cov teb xws li thaj chaw pom, qhov hnyav, thiab cov khoom siv kho qhov muag. Tus kws tshawb fawb kho qhov muag ntawm Meta, Pascual Rivera, tau hais tias cov thev naus laus zis silicon carbide waveguide tau hloov pauv qhov zoo ntawm cov tsom iav AR, hloov qhov kev paub los ntawm "disco-ball-zoo li lub teeb xim av" mus rau "kev paub zoo li chav ua yeeb yam."
Thaum Lub Kaum Ob Hlis Ntuj xyoo 2024, XINKEHUI tau ua tiav tsim lub ntiaj teb thawj 12-nti siab-purity semi-insulating silicon carbide ib leeg siv lead ua substrate, cim qhov kev tshawb pom tseem ceeb hauv thaj chaw ntawm cov substrates loj. Cov thev naus laus zis no yuav ua kom nrawm dua daim ntawv thov ntawm silicon carbide hauv cov xwm txheej 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 lens, txhim kho kev tsim khoom zoo heev. Peb tuaj yeem muab SiC wafer los txhawb cov ntawv thov zoo li no hauv kev lag luam tsom iav AR.
Tsis ntev los no, tus neeg muag khoom silicon carbide substrate XINKEHUI tau koom tes nrog lub tuam txhab micro-nano optoelectronic device MOD MICRO-NANO los tsim kom muaj kev sib koom tes uas tsom mus rau kev txhim kho thiab kev txhawb nqa kev lag luam ntawm AR diffraction waveguide lens technology. XINKEHUI, nrog nws cov kev txawj ntse hauv silicon carbide substrates, yuav muab cov substrates zoo rau MOD MICRO-NANO, uas yuav siv nws cov txiaj ntsig hauv micro-nano optical technology thiab AR waveguide processing los txhim kho kev ua tau zoo ntawm diffraction waveguides. Qhov kev koom tes no xav tias yuav ua kom muaj kev tshawb fawb txog kev siv tshuab hauv AR tsom iav, txhawb kev lag luam txav mus rau kev ua tau zoo dua thiab cov qauv tsim sib dua.
Xyoo 2025 SPIE AR | VR | MR kev nthuav qhia, MOD MICRO-NANO tau nthuav tawm nws cov iav tsom iav silicon carbide AR tiam thib ob, hnyav tsuas yog 2.7 grams thiab nrog qhov tuab tsuas yog 0.55 millimeters, sib dua li cov tsom iav ib txwm muaj, muab rau cov neeg siv khoom yuav luag tsis pom kev hnav, ua tiav qhov tsim "sib dua" tiag tiag.
Cov Ntaub Ntawv Thov ntawm Silicon Carbide hauv AR Cov Tsom Iav
Hauv cov txheej txheem tsim cov silicon carbide waveguides, Meta pab neeg tau kov yeej cov teeb meem ntawm cov thev naus laus zis slanted etching. Tus thawj coj tshawb fawb Nihar Mohanty piav qhia tias slanted etching yog cov thev naus laus zis grating tsis yog ib txwm muaj uas etch cov kab ntawm lub kaum sab xis kom ua kom zoo dua qhov sib txuas lub teeb thiab kev sib cais ua haujlwm. Qhov kev tawg ua rau lub hauv paus rau kev siv silicon carbide ntau hauv AR tsom iav.
Cov tsom iav Orion AR ntawm Meta yog ib daim ntawv thov siv cov thev naus laus zis silicon carbide hauv AR. Los ntawm kev siv cov thev naus laus zis silicon carbide waveguide, Orion ua tiav qhov pom kev 70-degree thiab daws tau cov teeb meem xws li ghosting thiab cov nyhuv zaj sawv.
Giuseppe Carafiore, tus thawj coj ntawm Meta's AR waveguide technology, tau hais tias silicon carbide's high refractive index thiab thermal conductivity ua rau nws yog ib qho khoom siv zoo tagnrho rau AR tsom iav. Tom qab xaiv cov khoom siv, qhov kev sib tw tom ntej yog los tsim cov waveguide, tshwj xeeb tshaj yog cov txheej txheem slanted etching rau lub 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 tau teeb tsa ntsug tab sis tau faib ntawm lub kaum sab xis. Nihar Mohanty ntxiv tias lawv yog thawj pab pawg thoob ntiaj teb kom ua tiav slanted etching ncaj qha rau ntawm cov khoom siv. Xyoo 2019, Nihar Mohanty thiab nws pab neeg tau tsim ib txoj kab ntau lawm. Ua ntej ntawd, tsis muaj khoom siv rau etch silicon carbide waveguides, thiab tsis muaj cov thev naus laus zis ua tau sab nraum lub chaw kuaj mob.
Cov Kev Cov nyom thiab Kev Cia Siab Yav Tom Ntej ntawm Silicon Carbide
Txawm hais tias silicon carbide qhia tau 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 tiav 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 ua kom tau raws li qhov xav tau ntawm cov neeg siv khoom lag luam. Txawm li cas los xij, nrog rau kev txhim kho sai ntawm kev lag luam tsheb fais fab, tus nqi ntawm silicon carbide maj mam txo qis. Ntxiv mus, kev tsim cov khoom loj (xws li 12-nti wafers) yuav tsav tsheb txo nqi thiab kev txhim kho kev ua haujlwm zoo.
Qhov nyuaj ntawm silicon carbide kuj ua rau nws nyuaj rau ua tiav, tshwj xeeb tshaj yog hauv kev tsim cov qauv micro-nano, ua rau cov nqi qis. Yav tom ntej, nrog kev koom tes tob dua ntawm cov neeg muab khoom silicon carbide substrate thiab cov chaw tsim khoom micro-nano optical, qhov teeb meem no xav tias yuav daws tau. Daim ntawv thov Silicon carbide hauv AR tsom iav tseem nyob rau theem pib, xav tau ntau lub tuam txhab los nqis peev rau hauv kev tshawb fawb optical-grade silicon carbide thiab kev tsim khoom siv. Meta pab pawg xav kom lwm cov chaw tsim khoom pib tsim lawv cov khoom siv, vim tias ntau lub tuam txhab nqis peev rau hauv kev tshawb fawb optical-grade silicon carbide thiab cov khoom siv, qhov muaj zog ntawm kev lag luam tsom iav AR yuav ua rau cov neeg siv khoom muaj zog dua.
Xaus lus
Silicon carbide, nrog nws cov refractive index siab, zoo heev cua sov dissipation, thiab siab hardness, tab tom dhau los ua cov khoom siv tseem ceeb hauv thaj chaw ntawm AR tsom iav. Los ntawm kev koom tes ntawm XINKEHUI thiab MOD MICRO-NANO mus rau kev siv silicon carbide hauv Meta's Orion AR tsom iav kom zoo, lub peev xwm ntawm silicon carbide hauv cov tsom iav ntse tau pom tseeb tag nrho. Txawm hais tias muaj kev cov nyom xws li tus nqi thiab kev cov nyom, raws li cov saw hlau kev lag luam loj hlob thiab thev naus laus zis txuas ntxiv mus, silicon carbide xav tias yuav ci ntsa iab hauv thaj chaw AR tsom iav, tsav tsheb tsom iav ntse mus rau kev ua tau zoo dua, qhov hnyav sib dua, thiab kev saws txais dav dua. Yav tom ntej, silicon carbide yuav dhau los ua cov khoom siv tseem ceeb hauv kev lag luam AR, coj mus rau hauv lub sijhawm tshiab ntawm cov tsom iav ntse.
Lub peev xwm ntawm silicon carbide tsis yog txwv rau AR tsom iav xwb; nws cov ntawv thov hla kev lag luam hauv electronics thiab photonics kuj qhia txog kev cia siab loj heev. Piv txwv li, kev siv silicon carbide hauv quantum computing thiab cov khoom siv hluav taws xob muaj zog siab tab tom raug tshawb nrhiav. Thaum thev naus laus zis nce qib thiab tus nqi txo qis, silicon carbide yuav ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw, ua kom nrawm dua kev txhim kho ntawm cov lag luam cuam tshuam. Peb tuaj yeem muab SiC wafer rau ntau yam kev siv, txhawb nqa kev nce qib hauv ob qho tib si AR technology thiab dhau mus.
Cov khoom cuam tshuam
8Inch 200mm 4H-N SiC Wafer Conductive dummy tshawb fawb qib
Lub sijhawm tshaj tawm: Plaub Hlis-01-2025