Inqubo yokukhiqiza yeUbuhlalu besibani se-LEDiyisixhumanisi esiyinhloko embonini yezibani ze-LED. Ubuhlalu bokukhanya kwe-LED, okwaziwa nangokuthi ama-diode akhipha ukukhanya, yizingxenye ezibalulekile ezisetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza kusukela ekukhanyisweni kokuhlala kuya ezixazululweni zokukhanyisa zezimoto nezimboni. Eminyakeni yamuva, ngenxa yezinzuzo zokonga amandla, impilo ende, nokuvikelwa kwemvelo kobuhlalu besibani se-LED, isidingo sabo sikhule kakhulu, okuholela ekuthuthukisweni nasekuthuthukisweni kobuchwepheshe bokukhiqiza.
Inqubo yokukhiqiza ubuhlalu besibani se-LED ihlanganisa izigaba eziningi, kusukela ekwenziweni kwezinto ezisetshenziswayo ze-semiconductor kuya ekuhlanganisweni kokugcina kwama-chips e-LED. Inqubo iqala ngokukhethwa kwezinto ezihlanzeke kakhulu njenge-gallium, i-arsenic, ne-phosphorus. Lezi zinto zihlanganiswa ngezilinganiso ezinembile ukuze zenze amakristalu e-semiconductor akha isisekelo sobuchwepheshe be-LED.
Ngemva kokuba impahla ye-semiconductor isilungisiwe, ihamba ngenqubo yokuhlanza eqinile ukuze isuse ukungcola futhi ithuthukise ukusebenza kwayo. Le nqubo yokuhlanza iqinisekisa ukuthi ubuhlalu besibani se-LED buhlinzeka ngokugqama okuphezulu, ukungaguquguquki kombala, nokusebenza kahle lapho busetshenziswa. Ngemuva kokuhlanza, izinto ezisetshenziswayo zisikwa zibe ama-wafers amancane kusetshenziswa i-cutter advanced.
Isinyathelo esilandelayo senqubo yokukhiqiza sibandakanya ukwakhiwa kwama-chips e-LED ngokwawo. Amawafa aphathwa ngokucophelela ngamakhemikhali athile futhi angena kwinqubo ebizwa ngokuthi i-epitaxy, lapho izingqimba ze-semiconductor material zifakwa phezu kwewafa. Lokhu kufakwa kwenziwa endaweni elawulwayo kusetshenziswa amasu afana ne-metal-organic chemical vapor deposition (MOCVD) noma i-molecular beam epitaxy (MBE).
Ngemuva kokuthi inqubo ye-epitaxial isiqediwe, i-wafer idinga ukudlula ochungechungeni lwe-photolithography kanye nezinyathelo zokuqopha ukuze ichaze ukwakheka kwe-LED. Lezi zinqubo zibandakanya ukusetshenziswa kwamasu athuthukisiwe we-photolithography ukuze kudalwe amaphethini ayinkimbinkimbi ebusweni bewafa echaza izingxenye ezihlukahlukene ze-chip ye-LED, njengezifunda zohlobo lwe-p nohlobo lwe-n, izendlalelo ezisebenzayo, namaphedi okuxhumana.
Ngemuva kokukhiqizwa kwama-chips e-LED, adlula kunqubo yokuhlunga nokuhlola ukuze aqinisekise ikhwalithi nokusebenza kwawo. I-chip ihlolelwa izici zikagesi, ukukhanya, izinga lokushisa lombala, namanye amapharamitha ukuze ahlangabezane namazinga adingekayo. Ama-chips angasebenzi kahle ayahlelwa ngenkathi ama-chips asebenzayo eya esigabeni esilandelayo.
Esigabeni sokugcina sokukhiqiza, ama-chips e-LED apakishwa abe ubuhlalu bokugcina besibani be-LED. Inqubo yokupakisha ihlanganisa ukukhweza ama-chip ohlakeni lomthofu, ukuwaxhuma ezintweni ezithinta ugesi, nokuwahlanganisa ngento evikelayo ye-resin. Le phakheji ivikela i-chip ezintweni zemvelo futhi ikhulisa ukuqina kwayo.
Ngemuva kokupakishwa, ubuhlalu besibani se-LED bungaphansi kokuhlolwa okwengeziwe kokusebenza, ukuqina, nokuthembeka. Lokhu kuhlola kulingisa izimo zokusebenza zangempela ukuze kuqinisekiswe ukuthi ubuhlalu besibani se-LED busebenza ngokuzinzile futhi bungamelana nezimo ezihlukahlukene zemvelo ezifana nokuguquguquka kwezinga lokushisa, umswakama, nokudlidliza.
Sekukonke, inqubo yokukhiqiza ubuhlalu besibani se-LED iyinkimbinkimbi kakhulu, idinga imishini ethuthukisiwe, ukulawula okunembile, nokuhlolwa kwekhwalithi okuqinile. Ukuthuthuka kobuchwepheshe be-LED kanye nokwenza kahle kwezinqubo zokukhiqiza kube nomthelela omkhulu ekwenzeni izixazululo zokukhanyisa kwe-LED zisebenzise amandla kakhudlwana, ziqine futhi zithembeke. Ngocwaningo oluqhubekayo nokuthuthukiswa kulo mkhakha, inqubo yokukhiqiza kulindeleke ukuthi ithuthukiswe futhi, futhi ubuhlalu besibani se-LED buzosebenza kahle futhi buthengeke ngokuzayo.
Uma unentshisekelo ngenqubo yokukhiqiza ubuhlalu besibani se-LED, wamukelekile ukuthintana nomkhiqizi wokukhanya komgwaqo we-LED TIANXIANG ukuzeFunda kabanzi.
Isikhathi sokuthumela: Aug-16-2023