Inqubo yokukhiqiza yeUbuhlalu besibani se-LEDiyisixhumanisi esiyinhloko embonini yezibani ze-LED. Ubuhlalu bokukhanya kwe-LED, okwaziwa nangokuthi ama-diode akhipha ukukhanya, yizici ezibalulekile ezisetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza kusukela ekukhanyisweni kwendawo yokuhlala kuya kuzixazululo 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 ethuthukisiwe.
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-chip 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 ngokwengeziwe, 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