Tam sim no, organic khoom tshwj xeeb tshaj yog rau epoxy cob ntaub ntawv thaum uas tsis muaj nqi thiab paub tab kos duab rau ntawm feem ntau yog ib feem tseem nyob rau hauv PCB ntau lawm, thiab cov pa organic luam Circuit Court board los ntawm ob yam ntawm tshav kub dissipation thiab thermal expansion coefficient txuam nrog txiv neej pw, yuav tsis tau raws li lub uas yuav tsum tau ntawm semiconductor circuit Court kev koom ua ke tej unceasingly.Ceramic khoom muaj zoo siab zaus ua tau zoo thiab hluav taws xob kev ua tau zoo, thiab muaj high thermal conductivity, tshuaj stability thiab thermal stability ntawm cov organic substrates xws li tsis muaj kev kawm zoo, yog ib tug tshiab tiam ntawm loj scale kev circuit Court thiab lub hwj chim hluav taws xob module ntawm tagnrho ntim material.Therefore, nyob rau hauv tsis ntev los no xyoo, Ceramic PCB Board tau txais nws kim heev xim thiab ceev ceev txoj kev loj hlob.
Ceramic Circuit Court board tej hub-raws li metallized substrate nrog zoo thermal thiab hluav taws xob zog, yog ib lub hwj chim hom LED encapsulation, zoo heev cov ntaub ntawv uas, ntshav teeb, ultraviolet (MCM) thiab yog tshwj xeeb yog suited rau ntau nti pob substrates xws li ncaj qha tsevneeg (cob) nti encapsulation qauv; Nyob rau tib lub sij hawm, nws kuj yuav siv tau raws li lub tshav kub dissipation circuit Court board ntawm lwm high-fais fais semiconductor modules, loj tam sim no mus, relay, telecommunication kev lag luam kav hlau txais xov, lim, solar inverter, etc.
Tam sim no, nrog rau txoj kev loj hlob ntawm high efficiency, kev kub ceev, thiab muaj hwj huam nyob rau hauv lub LED kev lag luam nyob rau hauv tsev thiab txawv teb chaws, nws yuav pom los ntawm 2017 mus 2018, lub zuag qhia tag nrho domestic LED ib tug sai kev kawm, kev loj hlob nyob rau hauv lub hwj chim, txoj kev loj hlob ntawm superior kev kawm ntawm tshav kub dissipation khoom tau ua ceev kom daws tau qhov teeb meem ntawm lub LED tshav kub dissipation.In Feem ntau, cov LED luminous efficiency thiab cov kev pab lub neej cia nrog qhov kev nce rau ntawm lub hlws ris kub, thaum lub hlws ris kub ntawm 125 ℃ saum toj no, cov LED tau tshwm sim txawm failure.In kom cov LED ntsuas kub ntawm ib tug tsawg kub, siab thermal conductivity, tsis tshua muaj tshav kub tsis kam thiab tsim nyog ntim txheej txheem yuav tsum tau txais los txo tag nrho cov thermal kuj LED.
Epoxy tooj liab clad substrates yog cov feem ntau lug siv substrates nyob rau hauv tsoos hluav taws xob packaging.It muaj peb zog: cov nyiaj them yug, conduction thiab insulation.Its yam ntxwv tseem ceeb yog: tsis muaj nqi, siab dej kuj, tsis tshua muaj ceev, ib qho yooj yim mus txheej txheem, ib qho yooj yim kom paub micrographics Circuit Court , haum rau loj production.But raws li ib tug tshwm sim ntawm FR - 4 puag cov ntaub ntawv uas yog epoxy cob, organic khoom siv ntawm tsawg thermal conductivity, kub kuj yog neeg pluag, yog li FR - 4 yuav tsis hloov mus rau kev kub ceev, muaj hwj chim LED ntim uas yuav tsum tau, feem ntau tsuas yog siv nyob rau hauv me me hwj chim LED ntim.
Ceramic substrate ntaub ntawv mas Alumina, Aluminium nitride, Sapphire, High Borosilicate iav, thiab lwm yam Piv nrog rau lwm substrate cov ntaub ntawv, tej hub substrate muaj raws li nram no cov yam ntxwv nyob rau hauv txhua yam khoom, hluav taws xob lub zog thiab thermal zog:
(1) Neeg kho tshuab cov khoom: Mechanical lub zog yuav ua tau siv raws li cov yuav txhawb tau lub Cheebtsam; Zoo ua, siab seem yog cov neeg; du nto, tsis muaj microcracks, dabtsi yog khoov, thiab lwm yam
(2) Thermal zog: lub thermal conductivity yog loj, lub thermal expansion coefficient yog los piv nrog rau cov Si thiab GaAs thiab lwm yam nti cov ntaub ntawv, thiab lub tshav kub kuj yog zoo.
(3) Hluav taws xob cov zog: Lub dielectric qhov yog tsawg tsawg, cov dielectric tsis yog me me, lub rwb thaiv tsev kuj thiab cov rwb thaiv tsev tsis ua hauj lwm yog cov uas siab, qhov kev kawm yog ruaj khov nyob rau hauv high school kub thiab siab humidity, thiab cov ntseeg yog high school.
(4) Lwm yam zog: Zoo tshuaj stability, tsis muaj noo noo haum; Roj resistant thiab tshuaj resistant; Cov mob toxic, muaj kuab paug-dawb, alpha ray emission yog me me; Lub crystal qauv yog ruaj khov, thiab nws tsis yog yooj yim yuav hloov nyob rau hauv lub kub range.Abundant raw khoom pab.
Rau ib ntev lub sij hawm, Al2O3 yog lub ntsiab substrate khoom ntawm tus muaj hwj huam packaging.But lub thermal conductivity ntawm Al2O3 yog tsawg tsawg, thiab lub cua sov expansion coefficient tsis phim lub nti material.Therefore, nyob rau hauv cov nqe lus ntawm kev ua tau zoo, tus nqi thiab tej kev tiv thaiv, qhov no substrate ntaub ntawv uas yuav ua tsis tau lub feem ntau zoo tagnrho cov ntaub ntawv uas rau txoj kev loj hlob ntawm high-power LED pab kiag li lawm nyob rau hauv lub neej yav tom ntej. Aluminium nitride ceramics nrog kub siab conductivity, siab zog, siab kuj nqi, me me ceev, tsis tshua muaj dielectric tsis tu ncua, uas tsis yog-tshuaj lom, raws li zoo raws li yav tom ntej zog xws li thermal expansion coefficient ntawm lub txuam nrog lub Si, yuav maj mam hloov tsoos high-power LED substrate khoom, ua ib tug ntawm cov feem ntau pheej yav tom ntej tej hub substrate cov ntaub ntawv, muab ntau dua li 180W ~ 220w / mk, KingSong muaj tej hub luam circuit Court laug cam rau koj PCB xav tau kev pab.