Ungakhetha kanjani ubuhlalu besibani se-LED kusibonisi se-LED?

Ingxenye ebalulekile yesibonisi se-LED ubuhlalu besibani se-LED namabhodi amayunithi e-LED. Uma omunye wabo enezinkinga, kuzothinta ngqo ikhwalithi yesibonisi se-LED! Ngakho-ke, indlela yokuhlukanisa ikhwalithi yobuhlalu besibani se-LED namabhodi eyunithi ye-LED yikhwalithi ye-LED ne-LED unit board. Izinkinga ezinakekelwa abathengisi be-LED, nansi indlela evamile yokuthola ikhwalithi yobuhlalu besibani se-LED namabhodi amayunithi e-PCB. Ngethemba ukuthi kuzoba usizo kubathengisi be-LED display. Ngaphezu kwalokho, izinga yinkosi. Umkhiqizo kanye nedivayisi eyenqaba okushibhile kanye ne-shoddy nayo iyisidingo sokwenziwa ngumkhiqizi, ukuze ungalimazi umphumela womsebenzi ojwayelekile kanye nokugcinwa okungadingekile kokulandelayo. Ibhodi le-LED. Abanye abakhiqizi bebhodi leyunithi ye-LED basebenzisa amabhodi ephepha ashibhile abushelelezi amalangabi noma amabhodi efiber anohlangothi olulodwa njengesibani se-LED njengezibani ze-LED ngamanani aphansi. Ngoba wonke amabhodi we-glass fiber PCB ayabiza. Ekuqaleni, umehluko awukwazi ukubonakala. Ngokuvamile, uma kungewona unyaka owodwa, izophuka ngenxa yomswakama, ukubhujiswa kwe-ultraviolet, i-oxidation, njll., okubangela ukuba lonke ibhodi leyunithi ye-LED likhishwe. Amabhodi eyunithi yekhwalithi ephezulu ye-LED kufanele abe ibhodi le-PCB eline-double-side all -off glass fiber PCB. Nakuba izindleko ziphezulu, ikhwalithi iqinisekisiwe. Qaphela ukuthi uhlobo lwamadivayisi e-IC olusetshenziswayo luyahambisana yini. Iyiphi imodeli ye-IC nokuthi mangaki ama-IC asetshenzisiwe, okwanele ukuthi athinte ikhwalithi yebhodi leyunithi ye-LED. Abanye abakhiqizi besibonisi se-LED, ukuze bonge izindleko, bazonciphisa ngamabomu inani lama-IC ngesikhathi sebhodi leyunithi yokukhiqiza, noma baxutshwe nezinye izinhlobo ze-IC. Amabheji namachips. Iso lenyama alikwazi ukuhlukanisa izinga lobuhlalu besibani. Kungase kusekelwe kuphela ekuhlolweni kwesikhathi eside, okungukuthi, ukuhlolwa kokuguga okushiwo ochwepheshe. Indlela yomkhiqizi ojwayelekile wesibonisi se-LED ithi: amandla okuba namandla ngaphambi kwefekthri, hlola ukuthi isibonisi se-LED singasebenza ngokujwayelekile yini, ngeke sihlolwe isikhathi eside. Ngoba izindleko zesikhathi esiningi nezabasebenzi zidinga isikhathi esiningi kanye nezindleko zomsebenzi. Ikhwalithi yokushisela: Hlola ukuthi ingabe zikhona yini izitikha zokuvuza kwengxenye, izitikha ezingalungile, nokuthi ingabe zikhona yini izingxenye ze-tube foot kanye ne-burrs short circuit. Hlola ukuthi amajoyinti wepulaki aqondile abushelelezi futhi ayindilinga, ukuthi ibhodi lihlanzekile futhi licocekile, futhi akukho ukushisela okubonakalayo. Hlola ukuvumelana kokucaba kokukhanya nombala weyinki. Ukuhlola okunamandla: Ukuvumelana kwendawo yokukhanyisa yokuhlola okunamandla; ukuthi ukuhlolwa kwamandla kuvikelwe ngempumelelo yi-CEM4953;. Ukwakheka okuyinhloko kobuhlalu besibani se-LED obupakishwe kuhlanganisa abakaki, ama-chips, izinsini zekristalu eqinile, imigqa yokhiye namajeli okupakisha, njll. I-SMD (Surface Mountain Devices) isho i-face-packed packaging structure, ehlanganisa ikakhulukazi izakhiwo ze-LED (Chicled) ne-PLCC zesakhiwo sebhodi le-PCB. Ake sethule ezinye zezimo zamanje zentuthuko yasekhaya ezicini zokupakisha izinto. Indima yobakaki. I-PLCC (I-Plastic Leaded Chip Carrier) ibakaki iyisiphathi sedivayisi ye-SMD LED, edlala indima ebalulekile ekuthembekeni nasekukhanyeni kwe-LED. Inqubo yokukhiqiza ubakaki we-PLCC ngokuyinhloko ihlanganisa izinqubo zamabhande wensimbi, i-electroplating, i-PPA (i-polybinzide) yokubumba umjovo, ukugoba, inkjethi enezinhlangothi ezinhlanu ezinezinhlangothi ezintathu nezinye izinqubo. Phakathi kwabo, i-electroplating, i-metal substrates, izinto zepulasitiki, njll. sebenzisa izindleko eziyinhloko zobakaki. Idizayini yokuthuthukisa isakhiwo sobakaki. Ngenxa yokuthi i-PPA nokubophezela kwensimbi kuyisibopho esingokomzimba, igebe lizoba likhulu ngemva kwesithando somlilo esibuyisela izinga lokushisa eliphezulu, okwenza kube lula ukuthi umhwamuko ungene edivayisini eduze komzila wensimbi ukuze uthinte ukuthembeka kokwethembeka. Ukuze kuthuthukiswe ukuthembeka komkhiqizo ukuze kuhlangatshezwane namadivayisi ekhwalithi ephezulu e-LED ahlangabezana nezidingo zemakethe ephezulu, ezinye izimboni zokupakisha zithuthukise ukwakheka kwesakhiwo sobakaki, njengokwamukela idizayini yesakhiwo esingangeni manzi ethuthukisiwe, ukunwebeka okugoba nezinye izindlela nweba umhwamuko wamanzi wobakaki ungene endleleni engena endleleni eya endleleni. Ngesikhathi esifanayo, izinyathelo eziningi zokuvikela amanzi njengamathangi angangeni manzi, izinyathelo ezingangeni manzi, nezimbobo ezingangeni manzi zengezwa ngaphakathi kubakaki. Lo mklamo awugcini nje ukusindisa izindleko zokupakisha, kodwa futhi uthuthukisa ukuthembeka komkhiqizo. Njengamanje, isetshenziswe kabanzi emikhiqizweni yokubonisa ye-LED yangaphandle. Ngemva kokupakishwa nabakaki abavamile ukuhlola i-qi yobakaki be-LED eklanywe i-SAM (Scanning Acrentic Microscope). I-chip ye-LED iwumgogodla wobuhlalu besibani se-LED, futhi ukwethembeka kwayo kunquma ukuphila nokusebenza okukhanyayo kobuhlalu besibani se-LED ngisho nokuboniswa kwe-LED. Izindleko zama-akhawunti we-chip we-LED wezindleko eziphelele zedivayisi ye-LED nazo zikhulu kakhulu. Ngokuncipha kwezindleko, usayizi we-chip ye-LED buye waba mncane futhi waba mncane, futhi uletha uchungechunge lwezinkinga zokuthembeka. Ngokuncishiswa kosayizi, i-PAD ye-electrode engu-P kanye ne-N electrode nayo inciphile. Ukwehliswa kwe-electrode PAD kuthinta ngqo ikhwalithi yomugqa wokushisela. Ngesikhathi esifanayo, ibanga A phakathi kwama-PAD amabili nalo lizoncipha, okuzokwenza ukuthi i-electrode yamanje ikhulise ngokweqile ukuminyana kwamanje, okwamanje iqoqa endaweni ku-electrode. Ukukhanya okuphezulu ngokweqile, okungalingani, ukuvuza kalula, ukwehla kwama-electrode, ngisho nokusebenza kahle kokukhanya okuphansi, njll., ekugcineni kuholele ekwehlisweni kokuthembeka kwesibonisi se-LED. Umugqa oyinhloko ungenye yezinto ezibalulekile zokupakishwa kwe-LED. Umsebenzi wayo ukubona ukuxhumana kukagesi kwe-chip nezikhonkwane, okudlala indima ye-chip nezwe langaphandle. Idivayisi ye-LED ihlanganisa imigqa yokhiye evamile ehlanganisa igolide, izintambo zethusi, imigqa yethusi ehlanganiswe ngethusi, nemigqa yealloy, njll. (1) Goldline. Umugqa wegolide usetshenziswa kabanzi, inqubo ivuthiwe, kodwa intengo iyabiza, okuholela ezindlekweni eziphakeme zokupakishwa kwe-LED. (2) Intambo yethusi. Izintambo zethusi zinezinzuzo zemiphumela eshibhile, emihle yokushisa ukushisa, nokukhula kancane kwezinhlanganisela zensimbi ze-intervertebral ngesikhathi somugqa wokushisela. Ububi ukuthi i-copper ilula ukwenza i-oxidize, ukuqina okuphezulu, kanye nokuqina okuphezulu. Ikakhulukazi endaweni yokushisa yebhola le-keyhearted yethusi eligazingiwe, ubuso bendawo yethusi bulula kakhulu ukwenza i-oxidize, futhi ifilimu ye-oxide eyakhiwe inciphisa ukusebenza kwe-albhamu yocingo lwethusi. Lokhu kuphakamisa izidingo eziphakeme zokulawulwa kwenqubo kunqubo yokukhiqiza yangempela. (3) Ukubhala ucingo lwethusi. Ukuze kuvinjwe i-oxidation yezintambo zethusi, i-copper-plated wire yethusi kancane kancane yakhanga ukunaka kwemboni yokupakisha. Izinzuzo zamandla aphezulu emishini, ubulukhuni obumaphakathi, i-welded kahle futhi i-sphere-size sphere ifaneleka ekuhlanganisweni kwesekethe ehlanganisiwe enezinyawo eziningi. Njengamanje, ingcina embozwe idivayisi yokubonisa ye-LED ikakhulukazi ihlanganisa izinhlobo ezimbili ze-epoxy resin ne-silicon silicon. (1) i-epoxy resin. I-epoxy resin ijwayele ukuguga, kulula ukuba manzi, ayikwazi ukumelana nokushisa, futhi kulula ukuyishintsha umbala ekukhanyeni kwe-short-wave kanye nezinga lokushisa eliphezulu. Inobuthi obuthile esimweni seglue. Ingcindezi yokushisa ayifani ne-LED. Ngakho-ke, i-epoxy resin ngokuvamile iyacasula. (2) I-Organic silicon. Uma iqhathaniswa ne-epoxy resin, i-organic silicon inezindleko eziphakeme -ukusebenza kahle, ukwahlukanisa okuhle kakhulu, i-dielectricity, kanye nokusondelana. Kodwa okubi ukuthi ukucinana kwegesi kubi, futhi kulula ukumunca. Ngakho-ke ayivamisile ukusetshenziswa ohlelweni lokupakisha lwedivayisi yokubonisa ye-LED. Dlulisa kusukela ku-[Inethiwekhi ye-Soso LED] [Amathegi kulesi sihloko] Ukuphesha Isiphuzo Sokukhanyisa Kwe-LED Ukukhanya Ubuhlalu Obuhlalu Be-LED Umkhiqizi Wobuhlalu Bokukhanyisa Ama-LED Amadrayivu Okukhanyisa I-Vehina I-Polar Tube [Umhleli Obophezelayo]