Lub hwj chim LED pob PCB ua raws li tus neeg nqa khoom ntawm cov cua sov thiab cua convection, thiab nws cov thermal conductivity plays lub luag hauj lwm txiav txim siab nyob rau hauv lub tshav kub dissipation ntawm LED.DPC ceramic PCB qhia tau hais tias muaj kev sib tw ntawm ntau cov khoom siv hluav taws xob nrog nws cov kev ua tau zoo thiab maj mam txo tus nqi. , uas yog tus qauv ntawm lub zog LED ntim kev txhim kho yav tom ntej.Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis thiab qhov tshwm sim ntawm cov txheej txheem npaj tshiab, cov khoom siv thermal conductivity ceramic muaj cov ntawv thov dav dav raws li cov khoom siv hluav taws xob tshiab ntim PCB.
Nrog rau kev txhim kho txuas ntxiv ntawm cov khoom siv hluav taws xob ntawm LED chips, lub tshav kub loj uas tsim los ntawm lub zog loj dissipation tau muab tso rau hauv cov kev xav tau tshiab thiab siab dua rau cov khoom ntim LED.Nyob rau hauv LED tshav kub dissipation channel, lub ntim PCB yog qhov tseem ceeb txuas mus rau sab hauv thiab sab nraud tshav kub dissipation txoj kev, thiab muaj lub functionality ntawm tshav kub dissipation channel, Circuit Court kev twb kev txuas thiab lub cev txhawb nqa rau lub nti.Rau siab zogLED cov khoom, lub ntim PCB yuav tsum muaj hluav taws xob rwb thaiv tsev, siab thermal conductivity, thiab thermal expansion coefficient txuam nrog cov nti.
Tab sis resin-raws li pob PCB: tus nqi siab ntawm kev txhawb nqa tseem nyuaj rau nrov.EMC thiab SMC muaj cov kev xav tau siab ntawm cov khoom siv compression molding.Tus nqi ntawm compression molding ntau lawm kab yog kwv yees li 10 lab yuan, thiab nws tseem yog ib qho nyuaj rau nrov nws ntawm ib tug loj teev.SMD LED brackets uas tau tshwm sim nyob rau hauv xyoo tas los no feem ntau siv high-temperature modified engineering cov ntaub ntawv yas, siv PPA resin ua raw cov ntaub ntawv, thiab ntxiv hloov cov fillers los txhim kho qee lub cev thiab tshuaj lom neeg ntawm PPA raw cov ntaub ntawv, kom cov ntaub ntawv PPA zoo dua rau txhaj tshuaj molding.Thiab siv SMD LED bracket.Lub thermal conductivity ntawm PPA yas yog tsawg heev, thiab nws cov cua sov
dissipation yog tsuas yog nqa tawm los ntawm cov hlau lead thav duab.Lub peev xwm ntawm lub tshav kub dissipation yog txwv, thiab nws tsuas yog tsim nyog rau cov khoom ntim uas tsis muaj zog LED.
Hlau Core Printed Circuit Boards: Complex Manufacturing Processes thiab tsawg dua kev siv.Kev ua thiab kev tsim cov txheej txheem ntawm aluminium-based PCB yog qhov nyuaj thiab tus nqi siab.Lub thermal expansion coefficient ntawm txhuas yog qhov sib txawv ntawm cov khoom siv nti, thiab nws tsis tshua muaj siv hauv cov ntawv thov.Feem ntau ntawm cov khoom siv hluav taws xob siab LED siv hom PCB no, thiab tus nqi yog nruab nrab ntawm tus nqi siab.Nws yog qhov zoo rauLED MINI zaub.Tam sim no high-power LED tshav kub dissipation PCB nyob rau hauv ntau lawm muaj ib tug heev tsawg thermal conductivity ntawm lub insulating txheej, thiab vim muaj cov txheej txheem insulating, nws tsis tuaj yeem tiv taus kub kub soldering, uas txwv qhov optimization ntawm pob qauv thiab yog. tsis haum rau LED tshav kub dissipation.
Silicon-raws li PCB ntim: ntsib cov teeb meem, tus nqi tawm los tsawg dua 60%. Silicon-raws li PCBs ntsib cov teeb meem hauv kev npaj cov txheej txheem insulating, hlau txheej, thiab vias, thiab cov txiaj ntsig tsis tshaj 60%.Silicon-raws li cov ntaub ntawv yog siv raws li LED ntim PCB technology, uas yog siv nyob rau hauv lubLED kev lag luamhauv kev lag luam semiconductor.Cov thermal conductivity thiab thermal expansion zog ntawm silicon-raws li PCBs qhia tias silicon yog cov khoom ntim zoo dua rau LEDs.Thermal conductivity
ntawm silicon yog 140W / m·K.Thaum siv hauv LED ntim, lub thermal kuj tshwm sim los ntawm nws tsuas yog 0.66K / W;thiab silicon-raws li cov ntaub ntawv tau dav siv nyob rau hauv semiconductor manufacturing processes thiab lwm yam ntim, uas muaj feem xyuam rau cov khoom thiab cov ntaub ntawv.heev mature.Yog li ntawd, yog tias silicon tau ua rau hauv LED pob PCB, ntau lawm yog ib qho yooj yim.Txawm li cas los xij, tseem muaj ntau yam teeb meem hauv LED silicon PCB ntim.Piv txwv li, nyob rau hauv cov ntaub ntawv ntawm cov ntaub ntawv, silicon cov ntaub ntawv yog yooj yim tawg, thiab kuj muaj ib tug teeb meem ntawm lub zog ntawm lub mechanism.Nyob rau hauv cov nqe lus ntawm cov qauv, txawm hais tias silicon yog ib tug zoo heev thermal conductor, nws muaj tsis zoo rwb thaiv tsev thiab yuav tsum tau oxidized thiab insulated.Tsis tas li ntawd, txheej hlau yuav tsum tau npaj los ntawm sputtering ua ke nrog electroplating, thiab lub qhov conductive yuav tsum tau npaj los ntawm etching.Nyob rau hauv dav dav, kev npaj ntawm insulating txheej, hlau txheej, thiab vias tag nrho lub ntsej muag kev sib tw, thiab cov yield tsis siab.
Ceramic Package PCB: Txhim kho Thaum tshav kub kub Dissipation Efficiency kom tau raws liHigh-power LEDKev thov.Nrog lub siab thermal conductivity ceramic matrix, lub tshav kub dissipation efficiency yog ho txhim kho, thiab nws yog cov khoom tsim nyog tshaj plaws rau kev loj hlob xav tau ntawm lub zog siab thiab me me LEDS.Ceramic PCBS muaj cov ntaub ntawv thermal conductivity tshiab thiab cov txheej txheem sab hauv tshiab, uas ua rau muaj qhov tsis xws ntawm txhuas hlau PCBS, yog li txhim kho tag nrho cov hluav taws kub dissipation ntawm PCB.Ntawm cov ntaub ntawv ceramic uas tuaj yeem siv rau cov cua kub dissipation PCB, BEO muaj cov thermal conductivity siab, tab sis nws cov linear expansion coefficient txawv heev ntawm silicon, thiab nws yog tshuaj lom thaum lub sij hawm tsim khoom, uas txwv nws tus kheej daim ntawv thov;BN muaj kev ua tau zoo, tab sis raws li PCB Cov khoom siv tsis muaj qhov zoo thiab yog kim, thiab tam sim no tsuas yog hauv kev tshawb fawb thiab kev txhawb nqa;silicon carbide muaj lub zog siab thiab siab thermal conductivity, tab sis nws qhov tsis kam thiab dielectric tiv taus qhov hluav taws xob tsawg, thiab kev sib txuas tom qab metallization tsis ruaj khov, uas yuav ua rau kev hloov pauv ntawm thermal conductivity thiab dielectric tas li yuav tsum tsis txhob siv los ua insulating ntim PCB cov ntaub ntawv.Txawm hais tias Al2O3 ceramic substrate yog tam sim no feem ntau tsim thiab dav siv ceramic substrate, vim nws cov thermal expansion coefficient ntau dua li Si ib leeg siv lead ua, Al2O3 ceramic substrate tsis haum rau high-frequency, high-power, ultra-loj-scale integrated. circuits.siv nyob rau hauv. A1N siv lead ua muaj siab thermal conductivity thiab raug suav hais tias yog cov khoom siv zoo tshaj plaws rau tiam tom ntej semiconductor PCBS thiab ntim.
AlN ceramic PCB tau kawm dav thiab maj mam tsim txij li xyoo 1990s.Nws yog tam sim no feem ntau suav hais tias yog ib qho kev cog lus hluav taws xob ceramic ntim khoom.Lub tshav kub dissipation efficiency ntawm AlN ceramic PCB yog ntau npaum li 7 npaug ntawm Al2O3.Qhov txiaj ntsig ntawm cov cua kub dissipation ntawm AlN ceramic PCB siv rau lub zog siab LEDs yog qhov zoo tshaj plaws, yog li txhim kho kev ua haujlwm ntawm LEDs lub neej.DPC ceramic PCB tseem hu ua tooj liab-plated ceramic board.DPC cov khoom muaj cov yam ntxwv ntawm high circuit precision thiab siab nto flatness.Nws yog cov khoom sib txawv uas tsim nyog tshaj plaws rau kev tsim kho cov kev xav tau ntawm high-power, me me LEDs.
Post lub sij hawm: Aug-29-2022