Mphamvu ya phukusi la LED PCB imagwira ntchito ngati chonyamulira kutentha ndi mpweya, ndipo matenthedwe ake amatenthetsa amathandizira kwambiri pakutentha kwa LED.DPC ceramic PCB ikuwonetsa kupikisana kwamphamvu pakati pa zida zambiri zamapaketi amagetsi ndi magwiridwe antchito ake komanso kutsika mtengo pang'onopang'ono. , yomwe ndi njira yopangira ma CD amphamvu a LED mtsogolomo.Ndi chitukuko cha sayansi ndi luso ndi zikamera wa njira kukonzekera kwatsopano, mkulu matenthedwe madutsidwe zipangizo ceramic ndi yotakata ntchito ziyembekezo ngati latsopano ma CD zipangizo zamagetsi PCB.
Ndi kupititsa patsogolo kosalekeza kwa mphamvu yolowera ya tchipisi ta LED, kutentha kwakukulu kopangidwa ndi mphamvu yayikulu yotayira kwapangitsa kuti pakhale zofunikira zatsopano komanso zapamwamba pazonyamula za LED.Mu njira yochotsera kutentha kwa LED, PCB yopakirayo ndiye ulalo wofunikira wolumikiza njira zowotcha mkati ndi kunja, ndipo ili ndi ntchito za njira yoziziritsira kutentha, kulumikizana kwa dera ndi chithandizo chakuthupi cha chip.Zamphamvu kwambiriZida za LED, ma CD a PCB amafunikira kutchinjiriza kwamagetsi apamwamba, kukhathamiritsa kwamafuta kwambiri, komanso kuchuluka kwamafuta ofananira ndi chip.
Koma phukusi lopangidwa ndi utomoni PCB: mtengo wokwera wothandizira ndizovuta kufalitsa.EMC ndi SMC zili ndi zofunika kwambiri pazida zomangira.Mtengo wa mzere wopanga makina ophatikizira ndi pafupifupi ma yuan 10 miliyoni, ndipo ndizovuta kulengeza pamlingo waukulu.Maburaketi a SMD LED omwe atuluka m'zaka zaposachedwa amagwiritsa ntchito zida zapulasitiki zosinthidwa kutentha kwambiri, pogwiritsa ntchito utomoni wa PPA ngati zida zopangira, ndikuwonjezera zodzaza zosinthidwa kuti ziwonjezere zina zakuthupi ndi zamankhwala za PPA zopangira, kuti zida za PPA zikhale zoyenera jekeseni akamaumba.Ndipo kugwiritsa ntchito SMD LED bulaketi.Kutentha kwamafuta a pulasitiki ya PPA ndikotsika kwambiri, komanso kutentha kwake
kutayika kumachitika makamaka kudzera muzitsulo zotsogola zachitsulo.Kutentha kwapang'onopang'ono ndikochepa, ndipo ndikoyenera kuyika kwapang'onopang'ono kwa LED.
Ma Metal Core Printed Circuit Boards: Njira Zovuta Zopangira Zinthu komanso Zosathandiza Kwambiri.Njira yopangira ndi kupanga ma PCB opangidwa ndi aluminiyamu ndizovuta ndipo mtengo wake ndi wokwera.Kukula kwa matenthedwe kokwanira kwa aluminiyamu ndi kosiyana kwambiri ndi kachipangizo ka chip, ndipo sikumagwiritsidwa ntchito kawirikawiri.Maphukusi ambiri amphamvu kwambiri a LED amagwiritsa ntchito mtundu uwu wa PCB, ndipo mtengo uli pakati pa mtengo wapakati ndi wapamwamba.Ndi zabwino kwaChiwonetsero cha LED MINI.Pakalipano mkulu wa mphamvu LED kutentha dissipation PCB kupanga ali ndi otsika kwambiri matenthedwe madutsidwe wa wosanjikiza insulating, ndipo chifukwa cha kukhalapo kwa wosanjikiza wosanjikiza, sangathe kupirira mkulu-kutentha soldering, amene amachepetsa kukhathamiritsa dongosolo phukusi ndi sichikuthandizira kutentha kwa LED.
Ma PCB opangidwa ndi silicon: akukumana ndi zovuta, zokolola zimakhala zosakwana 60%.Ma PCB opangidwa ndi silicon amakumana ndi zovuta pokonzekera zigawo zotetezera, zigawo zachitsulo, ndi vias, ndipo chiwerengero cha zokolola sichidutsa 60%.Zida zopangidwa ndi silicon zimagwiritsidwa ntchito ngati ukadaulo wa PCB wonyamula ma LED, womwe umagwiritsidwa ntchito popangaMakampani a LEDm'makampani a semiconductor.Kutentha kwamafuta komanso kukulitsa kutentha kwa ma PCB opangidwa ndi silicon kumasonyeza kuti silicon ndi chinthu choyenera kuyika ma LED.The matenthedwe madutsidwe
silicon ndi 140W/m·K.Mukagwiritsidwa ntchito pakupanga kwa LED, kukana kwamafuta komwe kumayambitsidwa ndi 0.66K / W kokha;ndi zinthu zopangidwa ndi silicon zakhala zikugwiritsidwa ntchito kwambiri popanga semiconductor ndi minda yokhudzana ndi ma CD, kuphatikiza zida ndi zida zofananira.okhwima ndithu.Chifukwa chake, ngati silicon imapangidwa kukhala PCB phukusi la LED, kupanga misa ndikosavuta.Komabe, pali zovuta zambiri zaukadaulo pakuyika kwa silicon PCB ya LED.Mwachitsanzo, ponena za zipangizo, zipangizo za silicon zimasweka mosavuta, ndipo palinso vuto ndi mphamvu ya makina.Pankhani ya kapangidwe kake, ngakhale silicon ndiyoyendetsa bwino kwambiri matenthedwe, imakhala ndi zotchingira bwino ndipo imayenera kukhala oxidized ndi insulated.Kuphatikiza apo, chitsulo chosanjikiza chimayenera kukonzedwa ndi sputtering kuphatikiza ndi electroplating, ndipo dzenje loyendetsa liyenera kukonzedwa ndi etching.Ambiri, yokonza insulating zigawo, zitsulo zigawo, ndi vias onse amakumana ndi mavuto, ndi zokolola si mkulu.
Ceramic Phukusi PCB: Limbikitsani Kutentha Kwachangu Kuti MukumaneMphamvu Yapamwamba ya LEDZofuna.Ndi matrix apamwamba kwambiri a ceramic matrix, kutentha kwapang'onopang'ono kumakhala bwino kwambiri, ndipo ndi chinthu choyenera kwambiri pazosowa zachitukuko champhamvu komanso ma LED ang'onoang'ono.Ceramic PCBS ili ndi zida zatsopano zopangira matenthedwe ndi zida zatsopano zamkati, zomwe zimapanga zolakwika zazitsulo za aluminiyamu PCBS, potero kuwongolera kutentha kwa PCB.Pakati pa zida za ceramic zomwe zingagwiritsidwe ntchito pochotsa kutentha kwa PCB, BEO ili ndi matenthedwe apamwamba kwambiri, koma kukula kwake kwa mzere kumasiyana kwambiri ndi silicon, ndipo ndi poizoni popanga, zomwe zimalepheretsa ntchito yake;BN ili ndi magwiridwe antchito abwino, koma ngati PCB Zinthuzi zilibe zabwino zambiri ndipo ndizokwera mtengo, ndipo pano zikungofufuza ndi kukwezedwa;Pakachitsulo carbide ali ndi mphamvu mkulu madutsidwe matenthedwe matenthedwe, koma kukana kwake ndi dielectric kupirira voteji ndi otsika, ndi kugwirizana pambuyo metallization ndi wosakhazikika, zomwe zidzachititsa Kusintha madutsidwe matenthedwe ndi dielectric zonse sayenera kugwiritsidwa ntchito ngati insulating ma CD zipangizo PCB.Ngakhale Al2O3 ceramic gawo lapansi ndilomwe limapangidwa kwambiri komanso logwiritsidwa ntchito kwambiri ndi ceramic gawo lapansi, chifukwa cha kuchuluka kwa matenthedwe owonjezera kuposa Si single crystal, Al2O3 ceramic substrate siyenera kuphatikizira ma frequency apamwamba, apamwamba kwambiri, ophatikizika kwambiri. madera.amagwiritsidwa ntchito mkati. A1N crystal imakhala ndi matenthedwe apamwamba kwambiri ndipo imatengedwa kuti ndi yabwino kwa PCBS ya m'badwo wotsatira wa semiconductor ndi kulongedza.
AlN ceramic PCB yakhala ikuphunziridwa kwambiri ndipo pang'onopang'ono idapangidwa kuyambira 1990s.Pakali pano imatengedwa ngati chinthu cholonjeza chapakompyuta cha ceramic.Kuthekera kwa kutentha kwa AlN ceramic PCB ndikokwanira ka 7 kuposa kwa Al2O3.Phindu la kutentha kwa AlN ceramic PCB lomwe limagwiritsidwa ntchito pa ma LED amphamvu kwambiri ndi lodabwitsa, motero limathandizira kwambiri moyo wautumiki wa ma LED.DPC ceramic PCB imadziwikanso kuti Direct copper-plated ceramic board.Zogulitsa za DPC zimakhala ndi mawonekedwe olondola kwambiri ozungulira komanso kusalala kwapamwamba.Ndi mankhwala amtundu uliwonse omwe ali oyenera kwambiri pazosowa zachitukuko za ma LED amphamvu, ang'onoang'ono.
Nthawi yotumiza: Aug-29-2022