1. Chiyambi cha SMD Packaging Technology
1.1 Tanthauzo ndi Mbiri ya SMD
Ukadaulo wamapaketi a SMD ndi mtundu wazinthu zamagetsi zamagetsi. SMD, yomwe imayimira Surface Mounted Device, ndi ukadaulo womwe umagwiritsidwa ntchito kwambiri m'makampani opanga zamagetsi pakunyamula tchipisi tating'onoting'ono kapena zida zina zamagetsi kuti ziziyikidwa mwachindunji pa PCB (Printed Circuit Board).
1.2 Zofunika Kwambiri
Kukula Kwakung'ono:Zida zophatikizidwa ndi SMD ndizophatikizika, zomwe zimathandizira kuphatikizika kwapamwamba kwambiri, komwe kumakhala kopindulitsa popanga zinthu zamagetsi zazing'ono komanso zopepuka.
Kulemera Kwambiri:Zigawo za SMD sizifuna zitsogozo, zomwe zimapangitsa kuti mawonekedwe onse akhale opepuka komanso oyenera kugwiritsa ntchito zomwe zimafuna kuchepetsa kulemera.
Makhalidwe Abwino Kwambiri Kwambiri:Zowongolera zazifupi ndi zolumikizira mu zigawo za SMD zimathandizira kuchepetsa inductance ndi kukana, kupititsa patsogolo magwiridwe antchito apamwamba.
Zoyenera Kupanga Mwadzidzidzi:Zida za SMD ndizoyenera makina oyika makina, kukulitsa luso la kupanga komanso kukhazikika kwabwino.
Kuchita bwino kwa Thermal:Zigawo za SMD zimalumikizana mwachindunji ndi PCB pamwamba, zomwe zimathandizira kutulutsa kutentha ndikuwongolera magwiridwe antchito.
Zosavuta Kukonza ndi Kusamalira:Njira yokwera pamwamba pazigawo za SMD imapangitsa kuti zikhale zosavuta kukonza ndikusintha zigawo.
Mitundu Yopaka:Kupaka kwa SMD kumaphatikizapo mitundu yosiyanasiyana monga SOIC, QFN, BGA, ndi LGA, iliyonse ili ndi maubwino ake ndi zochitika zake.
Kukula Kwaukadaulo:Chiyambireni kukhazikitsidwa kwake, ukadaulo wapackage wa SMD wakhala umodzi mwamakina apamwamba kwambiri pamakampani opanga zamagetsi. Ndi kupita patsogolo kwaukadaulo komanso kufunikira kwa msika, ukadaulo wa SMD ukupitilizabe kusinthika kuti ukwaniritse zosowa zantchito zapamwamba, zocheperako, komanso zotsika mtengo.
2. Kusanthula kwa COB Packaging Technology
2.1 Tanthauzo ndi Mbiri ya COB
Ukadaulo wopakira wa COB, womwe umayimira Chip on Board, ndi njira yoyikamo pomwe tchipisi zimayikidwa mwachindunji pa PCB (Printed Circuit Board). Ukadaulo uwu umagwiritsidwa ntchito makamaka kuthana ndi vuto la kutentha kwa LED ndikukwaniritsa kuphatikizika kolimba pakati pa chip ndi board board.
2.2 Mfundo Zaumisiri
Kupaka kwa COB kumaphatikizapo kumangirira tchipisi topanda kanthu pagawo lolumikizirana pogwiritsa ntchito zomatira zoyendetsa kapena zosayendetsa, ndikutsatiridwa ndi ma waya kuti akhazikitse zolumikizira zamagetsi. Pakulongedza, ngati chip chopanda kanthu chikuwululidwa ndi mpweya, chikhoza kuipitsidwa kapena kuonongeka. Chifukwa chake, zomatira nthawi zambiri zimagwiritsidwa ntchito kuyika chip ndi mawaya omangirira, kupanga "soft encapsulation."
2.3 Zaukadaulo
Kupaka Pang'onopang'ono: Mwa kuphatikiza ma CD ndi PCB, kukula kwa chip kumatha kuchepetsedwa kwambiri, mulingo wophatikizira ukuwonjezeka, kapangidwe ka dera kukhathamiritsa, kukhathamira kwa dera kumatsika, ndikukhazikika kwadongosolo.
Kukhazikika Kwabwino: Direct chip soldering pa PCB imapangitsa kugwedezeka kwabwino komanso kukana kugwedezeka, kukhalabe bata m'malo ovuta monga kutentha kwambiri ndi chinyezi, potero kumakulitsa moyo wazinthu.
Kuwongolera Kwabwino Kwambiri: Kugwiritsa ntchito zomatira zotenthetsera pakati pa chip ndi PCB kumawonjezera kutentha, kumachepetsa kutentha kwa chip ndikuwongolera moyo wa chip.
Mtengo Wotsika Wopanga: Popanda kufunikira kwa zitsogozo, zimachotsa njira zina zovuta zophatikiza zolumikizira ndi zowongolera, kuchepetsa ndalama zopangira. Kuphatikiza apo, imalola kupanga zokha, kutsitsa mtengo wantchito ndikuwongolera magwiridwe antchito.
2.4 Kusamala
Zovuta Kukonza: Kuwotchera mwachindunji kwa chip ku PCB kumapangitsa kuti chip chichotsedwe kapena kusinthidwa kukhala chosatheka, chomwe chimafuna kusinthidwa kwa PCB yonse, kuonjezera ndalama ndi kukonzanso zovuta.
Nkhani Zodalirika: Chips ophatikizidwa mu zomatira amatha kuonongeka panthawi yochotsa, zomwe zingayambitse kuwonongeka kwa pad komanso kukhudza kupanga.
Zofunikira Zapamwamba Zachilengedwe: Njira yopangira ma COB imafuna malo opanda fumbi, opanda static; apo ayi, kulephera kumawonjezeka.
3. Kuyerekeza kwa SMD ndi COB
Ndiye pali kusiyana kotani pakati pa matekinoloje awiriwa?
3.1 Kufananiza Zochitika Zowoneka
Zowonetsa za COB, zokhala ndi magwero a kuwala kwapamtunda, zimapatsa owonera mawonekedwe abwino komanso ofananirako. Poyerekeza ndi gwero la kuwala kwa SMD, COB imapereka mitundu yowoneka bwino komanso kasamalidwe kabwinoko, ndikupangitsa kuti ikhale yoyenera kuwonera kwanthawi yayitali, pafupi.
3.2 Kuyerekeza Kukhazikika ndi Kusunga
Ngakhale zowonetsera za SMD ndizosavuta kukonza pamalopo, zimakhala ndi chitetezo chochepa kwambiri ndipo zimatha kukhudzidwa ndi chilengedwe. Mosiyana ndi izi, zowonetsera za COB, chifukwa cha mapangidwe ake onse, zimakhala ndi chitetezo chapamwamba, chokhala ndi ntchito yabwino yosalowa madzi komanso yopanda fumbi. Komabe, ziyenera kudziwidwa kuti zowonetsera za COB nthawi zambiri zimafunika kubwezeredwa kufakitale kuti zikonzedwe zikalephera.
3.3 Kugwiritsa Ntchito Mphamvu ndi Kugwiritsa Ntchito Mphamvu Mwachangu
Pogwiritsa ntchito flip-chip njira yosasinthika, COB imakhala ndi magetsi apamwamba kwambiri, zomwe zimapangitsa kuti magetsi azikhala ochepa kwambiri pakuwala komweko, kupulumutsa ogwiritsa ntchito pamtengo wamagetsi.
3.4 Mtengo ndi Chitukuko
Ukadaulo wapackage wa SMD umagwiritsidwa ntchito kwambiri chifukwa cha kukhwima kwake komanso mtengo wotsika wopanga. Ngakhale ukadaulo wa COB umakhala ndi zotsika mtengo, njira zake zopangira zovuta komanso zokolola zochepa pakali pano zimabweretsa ndalama zenizeni. Komabe, momwe ukadaulo ukupita patsogolo komanso kuchuluka kwa kupanga, mtengo wa COB ukuyembekezeka kutsika kwambiri.
4. Zochitika Zachitukuko Zamtsogolo
RTLED ndi mpainiya muukadaulo wowonetsera wa COB LED. ZathuMawonekedwe a COB LEDamagwiritsidwa ntchito kwambiri mumitundu yonse ya malonda a LED zowonetserachifukwa cha mawonekedwe awo abwino kwambiri komanso magwiridwe antchito odalirika. RTLED yadzipereka kupereka njira zowonetsera zapamwamba, zoyimitsa kamodzi kuti zikwaniritse zosowa zamakasitomala athu pazowonetsa matanthauzidwe apamwamba komanso kupulumutsa mphamvu ndi kuteteza chilengedwe. Tikupitiliza kukhathamiritsa ukadaulo wathu wapackage wa COB kuti tibweretse makasitomala athu zinthu zopikisana kwambiri powongolera mphamvu zamagetsi komanso kuchepetsa ndalama zopangira. Chophimba chathu cha COB LED sichimangowoneka bwino komanso kukhazikika kwakukulu, komanso imatha kugwira ntchito mokhazikika m'malo osiyanasiyana ovuta, kupatsa ogwiritsa ntchito chidziwitso chokhalitsa.
Pamsika wowonetsera wa LED, onse a COB ndi SMD ali ndi zabwino zawo. Pakuchulukirachulukira kwa zowonetsa zowoneka bwino, zowonetsera za Micro LED zokhala ndi kachulukidwe ka pixel ziyamba kukondedwa ndi msika. Ukadaulo wa COB, wokhala ndi mawonekedwe ake ophatikizika kwambiri, wakhala ukadaulo wofunikira pakukwaniritsa kachulukidwe ka pixel mu ma Micro LED. Panthawi imodzimodziyo, pamene ma pixel a mawonedwe a LED akupitirirabe kuchepa, mtengo wamtengo wapatali wa teknoloji ya COB ukuwonekera kwambiri.
5. Mwachidule
Ndi kupita patsogolo kwaukadaulo kosalekeza komanso kukhwima kwa msika, matekinoloje opaka ma COB ndi SMD apitilizabe kuchita nawo gawo lalikulu pamakampani owonetsera zamalonda. Tili ndi chifukwa chokhulupirira kuti posachedwapa, matekinoloje awiriwa athandizira makampani onse kukhala otanthauzira, anzeru, komanso okonda zachilengedwe.
Ngati mukufuna zowonetsera za LED,tiuzeni lerokuti mupeze mayankho azithunzi za LED.
Nthawi yotumiza: Jul-17-2024