Izizathu Zokuhlaziya Kusukela Enqubweni Yokupakisha

Izibani ze-LED ezifile, abathengi njengezinkampani zokupakisha, imikhiqizo eqediwe engezansi yomfula eya kumayunithi kanye nabantu abasetshenziswayo bangase bahlangabezane nayo. Isizathu siwukuthi kunezinhlobo ezimbili zezimo: Okokuqala, ukuvuza kwamanje kwe-LED kukhulu kakhulu ukwenza ukulahleka kwefindo le-PN, ukuze izibani ze-LED zingakhanyi, futhi uhlobo lwesimo ngokuvamile aluthinti umsebenzi ezinye izibani ze-LED; okwesibili, i-LED, i-LED, i-LED Umholi wokuxhumana wangaphakathi wokukhanya uphukile ukuze enze isibani esifile se-LED ngaphandle kokudlula kwamanje. Uhlobo lwesimo luzothinta umsebenzi ojwayelekile wezinye izibani ze-LED. V —2.2V, blue-green and white LED work voltage 2.8 —3.2V), ngokuvamile exhunywe ngentambo nokuxhuma ukwenza ama-voltage ahlukene omsebenzi. Uma izibani ze-LED eziningi zixhumekile, kuba mkhulu umthelela. Ukukhanya kwe-zero -string LED akukhanyi, kungabonakala ukuthi isimo sinzima kakhulu kunohlobo lwesimo sokuqala. Amalambu afile e-LED yi-Guan Jian, athinta ubuningi bokuphuma nokuthembeka. Indlela yokunciphisa nokuqeda amalambu afile kanye nokwandisa umthamo wokuphumayo nokwethembeka kuyindaba esemqoka okudingeka kubhekwane nayo ngokuvala futhi kusetshenziswa amabhizinisi. Ake senze ukuhlaziya kanye nezingxoxo mayelana nokwakhiwa kwezibani ezifile. 1. Ukulimala kwe-electrostatic ku-chip ye-LED konakalisiwe ukwenza ifindo le-PN le-chip ye-LED linyamalale, ukuvuza kwamanje kuyasuswa, futhi kuba uhlobo lokumelana. UnguDeveli oyingozi kakhulu. Amashumi ezigidi zamaRandi okulahlekelwa kwezomnotho. Ngakho-ke, ingxenye ye-electronic ye-anti-line electronic electronic component iwumsebenzi obaluleke kakhulu embonini ye-electronics. Ungayithathi kancane ezinkampanini zokupakisha ze-LED ne-LED display. Uma kunenkinga kunoma yisiphi isixhumanisi, kuzodala umonakalo ku-LED, okuzokwenza ukuthi ukusebenza kwe-LED kubi. Siyazi ukuthi umzimba womuntu (ESD) ungafinyelela ama-volt ayizinkulungwane ezintathu kwesobunxele, futhi izinyawo zingaphula i-chip ye-LED ngokulimala. Ifaka imigqa yokukhiqiza ku-LED. Ukuthi ukumelana komhlabathi kwamadivayisi ahlukahlukene kungahlangabezana yini nezidingo. Kubaluleke kakhulu futhi. Ngokuvamile, ukumelana komhlaba kuyadingeka Kwama-4 ohms, ukumelana komhlaba akudingeki ukuthi kufinyelele ≤ 2 ohm. Umonakalo we-LED womzimba womuntu nawo mkhulu kakhulu. Lapho usebenza, ukugqoka imifaniswano elwa nokuqina, enendandatho kagesi emile, indandatho kagesi emile ingumbukiso omubi, futhi awukho umthelela omuhle ekusakazweni kwe-electrostatic yeringi ye-electrostatic. Uma ungalusebenzisi lolu hlobo lomkhiqizo, uma abasebenzi bephula izinqubo zokusebenza, kufanele bathole imfundo eyisixwayiso, futhi ngesikhathi esifanayo, futhi ikhuthaza ukusetshenziswa kwabanye. Ungakanani umzimba womuntu onogesi ongaguquki, izingubo zendwangu ehlukene ezigqokwa abantu, kanye nevolumu yomuntu ngamunye, ekwindla nasebusika ebusuku, kunzima ukubona ukukhishwa phakathi kwezingubo. I-Vile. Inani le-ESD le-silicon-based base chip lingamavolthi angu-1100 kuphela, futhi inani le-ESD le-chip yesafire base liphansi, inqobo nje uma 500 —600 volts. I-chip enhle noma i-LED, uma siyithatha ngezandla zethu (umzimba awuthathi noma yiziphi izinyathelo zokuzivikela), imiphumela ingacatshangwa ukuthi i-chip noma i-LED izolimala ngamazinga ahlukahlukene. Isandla sihle kangangoba yisona sihlava sikagesi omile. Uma ibhizinisi lokupakisha lingasebenzi ngokuqinile ngokuhambisana nemithetho yomhlaba, yinkampani ngokwayo ezokwehlisa izinga lokufaneleka lomkhiqizo futhi yehlise ukufaneleka kwezomnotho kwebhizinisi. Uma izinto zokusebenza nabasebenzi abasebenzisa ama-LED bengagxiliwe Akunakugwema. Ngokuhambisana nezidingo zemanuwali esezingeni le-LED, ibanga eliholayo le-LED alikho ngaphansi 3 —I-5 mm, igoba noma i-welding, kepha iningi lezinkampani azikwenzi lokho, kepha kuphela ubukhulu bebhodi le-PCB (≤ 2 mm) okungaqondile, okuzodala umonakalo noma ukulimala kuma-LED. Ngenxa yokuthi izinga lokushisa lokushisela ngokweqile lizothinta i-chip, lizolimaza izici ze-chip futhi linciphise ukusebenza kahle kokukhanyisa, ukuze lesi simo singavamile. Alikho ibhizinisi elincane elisebenzisa ukushisela okwenziwa ngesandla, lisebenzisa i-40 wattipaton soldering iron, izinga lokushisa lokushisela alikwazi ukulawulwa, kanye nezinga lokushisa lensimbi yokunamathisela 300 —Ngaphezulu kuka-400 C, izinga lokushisa eliphakeme kakhulu lokushisela lizokwakha amalambu afile. I-LED lead iphakeme izikhathi eziningana kune-coefficient yokuvuvukala ku-150 C ekushiseni okuphezulu. Ukubanda kuncipha indawo yokushisela ivuleke, yenze isibani esifile. 2. Isizathu sokwenzeka kwesenzakalo sesibani ekuxhumekeni kwangaphakathi kwe-welding yezibani ze-LeD. 2.1 Ukuhlaziywa kwesenzeko samalambu afile 2.1 Inqubo yokukhiqiza yebhizinisi lokupakisha ayiphelele, futhi indlela yokuhlola ihlehla. Umugqa wokuvala wenziwe ngezinto zensimbi zethusi noma zensimbi ngokubumba okunembayo. Ngenxa yokuthi izinto zethusi zibiza kakhulu, izindleko ziphakeme ngokwemvelo. Ngenxa yemakethe enolaka, izici ziyathinteka. Insimbi iletha ama-LED. Ukuvalwa kwensimbi yensimbi kumele kube isiliva-plated. I-Silver Plating ayinayo imiphumela emibili. Enye iwukuvimbela i-moxibustion nokugqwala. Enye iwukuba lula ukushisela. Ihlobene nempilo ye-LED. Ngaphambi kwe-electroplating, ukucutshungulwa kufanele kwenziwe ngokuqinile ngokuhambisana nemithetho, futhi inqubo yokususa, ukususwa kukawoyela, kanye ne-phosphorusization kufanele ibe yinto esebenzayo. , Ukugqoka kukhulu kakhulu futhi izindleko ziphezulu kakhulu, zincane kakhulu ukuthi zingathinta inani. Ngenxa yokuthi izinkampani ezijwayelekile zokupakisha ze-LED azinawo amandla okuhlola inani le-electroplating kagesi, kunikeza amabhizinisi athile e-electroplating ngaphandle kwezikhala zokunciphisa ungqimba oluyisiliva lwe-electroplating, ukunciphisa imali engenayo. Indlela yokuhlola iyashoda, futhi alikho ithuluzi elinokuqina nokushesha kongqimba lwe-straton plating. Ngibonile ukuthi ngibone izinyanga ezimbalwa esitolo futhi ngigqwalile ngemuva kwezinyanga ezimbalwa. Imikhiqizo eyenziwe ngomugqa onjalo wokuvala ayinde neze, ungasho 3 —Amahora angu-50,000, amahora angu-10,000 ayinkinga. Isizathu silula kakhulu njalo ngonyaka ngaphandle kwenkathi yesikhathi. Isimo sezulu nomoya womswakama womoya uphakeme, futhi kunzima ukwakha izingxenye zensimbi ezihlukile ze-electroplating. Ngisho ne-encapsulated LED izoba mncane kakhulu futhi isendlalelo sesiliva-plated sincane kakhulu, futhi amalunga okushisela azosuswa ukuze enze into yesibani esifile. Okungukuthi, izibani esihlangabezane nazo azivuliwe, kodwa empeleni, amalunga angaphakathi e-solder asuswa eshalofini. 2.2 Inqubo ngayinye engaphandle kwenqubo yokupakisha kufanele yenziwe ngokuhambisana nokubi. Isizathu sokunganaki kwanoma iyiphi isixhumanisi ukwenza isibani esifile. I-glue izobuyela ku-chip pad yegolide ukuze yakhe isifunda esifushane, futhi i-chip izobe inamathele kancane. Okufanayo kuyiqiniso nge-dual welded chip point insulation gum. Uma u-oda ingcina ye-insulating eyengeziwe, uzobuyela kuphedi legolide le-chip ukuze wenze isithelo se-welding esibonakalayo ngesikhathi sokushisela. Kunama-chips ambalwa futhi awakwazi ukuqina, ngakho-ke ipayipi kufanele libe lilungile. Inqubo yokushisela nayo ibalulekile. Ukuxhumana kwengcindezi, isikhathi, izinga lokushisa, namandla omshini wokushisela ucingo lwegolide kufanele kube okulungile. Ngaphandle kwesikhathi esimisiwe, amanye amapharamitha amathathu ayalungiseka. I-Dacong inzima ukuchoboza i-chip, incane kakhulu, kunzima ukuyishisela. Izinga lokushisa lokushisela ngokuvamile lingama-280 C. I-power conditioning ibhekisela ku-ultrasonic power conditioning. Inkulu kakhulu futhi incane kakhulu. Izinto ezinhle, ukuhlolwa ngezinyathelo zokuhlolwa kwe-torque entwasahlobo ≥6 gramu, ezifanelekile. Unyaka ngamunye, imingcele yomshini wokushisela ibhola legolide itholwa futhi ibalwe ukuze kuqinisekiswe ukuthi imingcele yokushisela isesimweni esihle kakhulu. Ngaphezu kwalokho, i-arc yomugqa we-welding ayidingeki. Ukuphakama kwe-arc yephuzu elilodwa lokushisela kuwugqinsi lwama-chips angu-1.5-2, futhi ukuphakama kwe-arc ye-chip ehlangene yokushisela kuwugqinsi lwama-chips angu-2-3. Ubude be-arc buphansi kakhulu ukwenza isibani esifile lapho sishisela. 3. Indlela yokuhlonza isibani esifile sokushisela izoshisisa isibani se-LED esingashintshiwe ngesilula ukushisisa umthofu we-LED sibe ngu-200-300 C, isuse into elula, futhi ixhume i-LED ngebhethri elingu-3 volt kanye ne-electrode eyinegethivu. Ukukhanya, kodwa ukukhanya kwe-LED kuncishisiwe kusuka ekukhanyeni kuya ekungaqhubekiyo ngezinga lokushisa lokuqothula, bese kufakazela ukuthi ukukhanya kwe-LED kuwukushisela okubonakalayo. Isizathu sokushisa singakhanyisa ukusetshenziswa kwensimbi ye-thermal contraction kanye nokunciphisa. Umholi we-LED uyanwetshwa futhi anwetshwe kumajoyinti e-solder angaphakathi lapho kushisa. Ukufinyela komdwebo kufomu elivamile lokushisa, nqamula iphuzu le-solder langaphakathi, ukukhanya kwe-LED akukhanyi, uhlobo lwendlela oluzama ngokuphindaphindiwe lungokomoya. Ukushisela isibani esinama-welded amabili kulolo hlobo lwe-welding ebonakalayo ku-strip yensimbi, efakwe nge-sulfuric acid eshubile ukuze kuncibilike i-colloid yangaphandle ye-LED, futhi i-colloid iyancibilika futhi isuswe. Ungathola inkinga yokuthi i-welding yokuqala noma i-welding emibili. Ingabe ipharamitha yomshini wokushisela ibhola likasilika ayilungile, noma ezinye izizathu zokuthuthukisa izindlela nezinqubo. Abasebenzisi abasebenzisa imikhiqizo ye-LED bazophinde bahlangabezane nesimo sezibani ezifile, okungukuthi, ngemva kokusetshenziswa kwemikhiqizo ye-LED isikhathi esithile, kwenzeka into yezibani ezifile. Azikho izizathu ezimbili zezibani ezifile. Ayikho inkinga ngenani le-electroplating, futhi ukuvuza kwamanje kwe-chip ye-LED nakho kuzokwakha ukukhanya kwe-LED ngeke kukhanye. Manje njengoba imikhiqizo eminingi ye-LED ivikelekile ngokungangezi ukuvikelwa kwe-anti-electrostatic ukuze kuncishiswe izindleko, ngakho-ke kunzima ukuba nengqondo njenge-chip yokulimala emile. Kunzima ukukhombisa ulayini wokukhanya ezinsukwini zemvula njengogesi we-electrostatic ephezulu, kanye nokushaya okuphezulu kokupakishwa kolayini kagesi, okuzokwenza ukuthi imikhiqizo ye-LED yonakaliswe ngamazinga ahlukahlukene. Azikho izizathu eziningi zezibani zokufa. Alikwazi ukufakwa ohlwini ngamunye ngamunye. Kusukela ekufakweni, ukusetshenziswa, kanye nokusetshenziswa kwezixhumanisi ezihlukahlukene, akunakwenzeka ukuvela izibani ezifile. Indlela yokwandisa inani lemikhiqizo ye-LED ukuthi ibhizinisi lokudiliza kanye nokusetshenziswa kwebhizinisi kufanele kuqashelwe kakhulu. Nodaba locwaningo locwaningo, kusuka kuma-chips nasekukhetheni ama-rack, kuya kwinqubo yenqubo yokupakisha enguziro ye-LED, ngokohlelo lobuningi be-ISO2000. Uma nje ukuphuma kwe-LED kungandiswa ngokuphelele, kungaba impilo ende, ephezulu futhi enokwethenjelwa. Ngokwamasekhethi asetshenziswayo, ukukhetha ukumelana ne-voltage-sensitive kanye nezingxenye ze-PPTC ukuze kuthuthukiswe umjikelezo wokuvikela, ukwengeza inombolo ehambisanayo yemizila ehambisanayo, nokusebenzisa amandla amanje okushintsha njalo. Ukuvikelwa kokususwa kwezinga lokushisa kuyisilinganiso esingavumelekile sokuthuthukisa ukuthembeka kwemikhiqizo ye-LED.