Cov xwm txheej tam sim no, Daim Ntawv Thov thiab Kev Tshaj Tawm Outlook ntawm Silicon Substrate LED Technology

1. Txheej txheem cej luam tam sim no tag nrho cov txheej txheem thev naus laus zis ntawm silicon raws li LEDs

Kev loj hlob ntawm GaN cov ntaub ntawv ntawm silicon substrates ntsib ob qho kev sib tw loj.Ua ntej, lub lattice tsis sib haum txog li 17% ntawm silicon substrate thiab GaN ua rau muaj kev cuam tshuam ntau dua hauv cov khoom siv GaN, uas cuam tshuam rau luminescence efficiency;Qhov thib ob, muaj qhov thermal tsis sib haum xeeb txog li 54% ntawm silicon substrate thiab GaN, uas ua rau GaN cov yeeb yaj kiab nquag tawg tom qab kev loj hlob ntawm qhov kub thiab txias thiab poob rau hauv chav tsev kub, cuam tshuam cov khoom tsim tawm.Yog li ntawd, txoj kev loj hlob ntawm cov txheej tsis nyob nruab nrab ntawm silicon substrate thiab GaN nyias zaj duab xis yog qhov tseem ceeb heev.Cov txheej txheem tsis ua lub luag haujlwm hauv kev txo qis qhov sib txawv txav hauv GaN thiab txo GaN tawg.Rau qhov loj, cov txheej txheem ntawm cov txheej txheem tsis yog txiav txim siab qhov kev ua haujlwm sab hauv quantum thiab cov khoom tsim tawm ntawm LED, uas yog qhov ua kom pom tseeb thiab nyuaj ntawm silicon-based.LED.Txog tam sim no, nrog kev nqis peev tseem ceeb hauv kev tshawb fawb thiab kev txhim kho los ntawm kev lag luam thiab kev kawm, qhov kev sib tw thev naus laus zis no tau dhau los.

Lub silicon substrate muaj zog absorbs pom lub teeb, yog li GaN zaj duab xis yuav tsum raug xa mus rau lwm lub substrate.Ua ntej hloov mus, ib lub siab reflector yog muab tso rau ntawm GaN zaj duab xis thiab lwm yam substrate los tiv thaiv lub teeb tawm los ntawm GaN los ntawm absorbed los ntawm lub substrate.LED qauv tom qab hloov substrate yog paub nyob rau hauv kev lag luam raws li ib tug nyias zaj duab xis nti.Nyias zaj duab xis chips muaj qhov zoo dua li cov qauv tsim qauv chips raws li qhov tam sim no diffusion, thermal conductivity, thiab qhov chaw uniformity.

2. Txheej txheem cej luam ntawm tag nrho cov ntawv thov tam sim no thiab kev lag luam saib xyuas ntawm silicon substrate LEDs

Silicon raws li LEDs muaj cov qauv ntsug, kev faib tawm tam sim no, thiab nrawm nrawm, ua rau lawv tsim nyog rau kev siv hluav taws xob siab.Vim nws lub teeb pom kev zoo ib leeg, kev taw qhia zoo, thiab lub teeb pom kev zoo, nws yog qhov tshwj xeeb tshaj yog tsim rau lub teeb pom kev zoo xws li tsheb teeb pom kev zoo, teeb pom kev, mining teeb, lub xov tooj ntawm tes flash teeb, thiab high-end teeb pom kev zoo nrog lub teeb pom kev zoo. .

Lub tshuab thiab txheej txheem ntawm Jingneng Optoelectronics silicon substrate LED tau dhau los ua neeg paub tab.Raws li kev txuas ntxiv kom muaj txiaj ntsig zoo hauv thaj tsam ntawm silicon substrate xiav lub teeb LED chips, peb cov khoom txuas ntxiv mus rau thaj chaw teeb pom kev zoo uas xav tau lub teeb pom kev zoo thiab cov txiaj ntsig zoo, xws li lub teeb dawb LED chips nrog kev ua haujlwm siab dua thiab ntxiv tus nqi. , LED txawb xov tooj flash teeb, LED tsheb headlights, LED txoj kev teeb, LED backlight, thiab lwm yam., maj mam tsim kom zoo dua txoj hauj lwm ntawm silicon substrate LED chips nyob rau hauv segmented kev lag luam.

3. Txoj kev loj hlob kev kwv yees ntawm silicon substrate LED

Kev txhim kho lub teeb pom kev zoo, txo cov nqi lossis kev siv nyiaj tau zoo yog lub ntsiab lus nyob mus ib txhis hauvLED kev lag luam.Silicon substrate nyias zaj duab xis chips yuav tsum tau ntim ua ntej lawv tuaj yeem siv tau, thiab cov nqi ntim khoom rau ib feem loj ntawm daim ntawv thov LED.Hla ib txwm ntim khoom thiab ncaj qha ntim cov khoom ntawm lub wafer.Hauv lwm lo lus, nti ntim ntim (CSP) ntawm lub wafer tuaj yeem hla lub ntim kawg thiab ncaj qha nkag mus rau hauv daim ntawv thov kawg ntawm nti kawg, ntxiv txo cov nqi ntawm LED.CSP yog ib qho kev cia siab rau GaN raws li LEDs ntawm silicon.Cov tuam txhab thoob ntiaj teb xws li Toshiba thiab Samsung tau tshaj tawm tias siv silicon raws li LEDs rau CSP, thiab nws ntseeg tias cov khoom muaj feem xyuam yuav muaj nyob hauv khw sai sai.

Nyob rau hauv xyoo tas los no, lwm qhov chaw kub hauv kev lag luam LED yog Micro LED, tseem hu ua micrometer theem LED.Qhov loj ntawm Micro LEDs nyob ntawm ob peb micrometers mus rau kaum ntawm micrometers, yuav luag nyob rau tib theem raws li cov tuab ntawm GaN nyias zaj duab xis loj hlob los ntawm epitaxy.Ntawm qhov ntsuas micrometer, GaN cov ntaub ntawv tuaj yeem ua ncaj qha rau hauv cov qauv GaNLED yam tsis tas yuav muaj kev txhawb nqa.Uas yog hais, nyob rau hauv tus txheej txheem ntawm kev npaj Micro LEDs, lub substrate rau loj hlob GaN yuav tsum tau muab tshem tawm.Ib qho txiaj ntsig zoo ntawm silicon raws li LEDs yog tias silicon substrate tuaj yeem raug tshem tawm los ntawm cov tshuaj ntub dej etching ib leeg, tsis muaj kev cuam tshuam rau cov khoom siv GaN thaum lub sij hawm tshem tawm, ua kom muaj txiaj ntsig thiab kev ntseeg tau.Los ntawm qhov kev xav no, silicon substrate LED thev naus laus zis yog khi kom muaj qhov chaw nyob hauv thaj chaw ntawm Micro LEDs.


Post lub sij hawm: Mar-14-2024