Ngokuthambekela kokuthuthuka kokuncishiswa okuncane kwezingxenye ze-SMD kanye nezidingo eziphakeme neziphakeme zenqubo ye-SMT, imboni yokukhiqiza ngogesi inezidingo eziphakeme neziphakeme zemishini yokuhlola.Ngokuzayo, izinkundla zokusebenzela zokukhiqiza ze-SMT kufanele zibe nemishini eminingi yokuhlola kunemishini yokukhiqiza ye-SMT.Isixazululo sokugcina kufanele kube inhlanganisela ye-SPI + AOI ngaphambi kwesithando somlilo + AOI + AXI ngemva kwesithando somlilo.
- Umkhuba wokwenziwa okuncane kwezingxenye ze-SMD kanye nesidingo semishini ye-AOI
Ngokuthuthuka komphakathi kanye nokuthuthuka kwesayensi nobuchwepheshe, ziya ngokuya ziba ziningi izinto eziphathwayo ezihlangabezana nezifiso zabantu ezihlukahlukene, futhi ukukhiqizwa kuya ngokuya kuba yinkimbinkimbi, njengamahedsethi e-Bluetooth, ama-PDA, i-netbooks, i-MP4, amakhadi e-SD nokunye.Isidingo sale mikhiqizo sigqugquzele ukuthuthukiswa kwe-miniaturization yezingxenye ze-SMD, futhi ukwenziwa kwezingxenye ezincane kukhuthaze nokuthuthukiswa kwemishini ephathekayo.Umkhuba wokuthuthukiswa kwezingxenye ze-SMD ze-passive ufana nalokhu: izingxenye ze-0603 zavela ngo-1983, izingxenye ze-0402 zavela ngo-1989, izingxenye ze-0201 zaqala ukuvela ngo-1999, futhi namuhla sesiqale ukusebenzisa izingxenye ze-01005.
Izingxenye ezingu-01005 ekuqaleni zasetshenziswa emishinini yezokwelapha ezwela usayizi futhi engabizi kakhulu njengama-pacemaker.Ngokukhiqizwa okukhulu kwezingxenye ze-01005, intengo yezingxenye ze-01005 yehle izikhathi ezingu-5 uma iqhathaniswa nentengo ngenkathi yethulwa okokuqala, ngakho-ke ukusetshenziswa kwezingxenye ze-01005 Ngokuncishiswa kwezindleko, ububanzi bunwetshwa ngokuqhubekayo emikhiqizweni kweminye imikhakha, ngaleyo ndlela kukhuthaze ukuvela okuqhubekayo kwemikhiqizo emisha.
Izingxenye ze-SMD ziguqukile zisuka ku-0402, zaya ku-0201 futhi zaba ngu-01005. Izinguquko zosayizi ziboniswa esithombeni esingezansi:
Ubukhulu be-chip resistor 01005 bungu-0.4 mm × 0.2 mm × 0.2 mm, indawo ingu-16% kuphela no-44% wangaphambili ababili, futhi umthamo u-6% kuphela no-30% wezinto ezimbili zangaphambili.Ngemikhiqizo ezwela usayizi, ukuthandwa kwe-01005 kuletha ukuphila emkhiqizweni.Yebo, kuletha nezinselelo ezintsha namathuba embonini yokukhiqiza izinto zikagesi!Ukukhiqizwa kwezingxenye ze-01005 kanye nezingxenye ze-0201 kubeka izidingo zokunemba okuphezulu kakhulu kumishini yokukhiqiza ye-SMT kusukela ngaphambili kuya emuva.
Ezingxenyeni ze-0402, ukuhlola okubonakalayo sekuvele kuwumsebenzi omkhulu futhi kunzima ukuhlala, ingasaphathwa eyosaziwayo yezingxenye ze-0201 kanye nezingxenye ezikhulayo ze-01005.Ngakho-ke, kuwukuvumelana kwemboni ukuthi imigqa yokukhiqiza ye-SMT idinga okokusebenza kwe-AOI ukuze ihlolwe.Ezingxenyeni ezifana ne-0201, uma kwenzeka iphutha, lingafakwa kuphela ngaphansi kwe-microscope futhi lilungiswe ngamathuluzi akhethekile.Ngakho-ke, izindleko zesondlo ziye zaba phezulu kakhulu kune-0402. Ezingxenyeni zobukhulu be-01005 (0.4 × 0.2 × 0.13mm), kunzima ukubona ngeso lenyama kuphela, futhi kunzima nakakhulu ukusebenza nokugcina nanoma yiliphi ithuluzi.Ngakho-ke, uma ingxenye ye-01005 inokukhubazeka ohlelweni, ngeke ikwazi ukulungiswa.Ngakho-ke, ngokuthuthukiswa kokwenziwa kwemishini encane, sidinga imishini ye-AOI eyengeziwe ukuze silawule inqubo, hhayi nje ukuthola imikhiqizo enesici.Ngale ndlela, singathola amaphutha enqubweni kusenesikhathi, sithuthukise inqubo, futhi sinciphise ukuvela kwamaphutha.
- Ngale ndlela, singathola amaphutha enqubweni kusenesikhathi, sithuthukise inqubo, futhi sinciphise ukuvela kwamaphutha.
Nakuba imishini ye-AOI yaqala eminyakeni engu-20 edlule, isikhathi eside, yayibiza futhi kunzima ukuyibamba, futhi imiphumela yokutholwa yayinganelisi.I-AOI ibikhona nje njengomqondo futhi ayizange ibonwe yimakethe.Nokho, kusukela ngo-2005, i-AOI ithuthuke ngokushesha.Abahlinzeki bemishini ye-AOI sebekhulile.Imiqondo emisha eyahlukene kanye nemikhiqizo emisha iye yavela ngokulandelana.Ikakhulukazi, abakhiqizi bemishini ye-AOI basekhaya bawukuzigqaja kweShayina's imboni ye-SMT, kanye nempahla yasekhaya ye-AOI iyasebenza.Empeleni, ayisekho phezulu naphansi ngemikhiqizo yangaphandle, futhi ngenxa yokukhuphuka kwe-AOI yasekhaya, inani lilonke le-AOI lehle laya ku-1/2 laya ku-1/3 yangaphambili.Ngakho-ke, ngokwezindleko zabasebenzi ezilondolozwe yi-AOI esikhundleni sokuhlola okubukwayo okwenziwa ngesandla, ukuthenga i-AOI nakho Kuyafaneleka, ingasaphathwa eyokuthi ukusebenzisa i-AOI nakho kungakhuphula izinga lokudlula eliqondile lomkhiqizo futhi kuthole umphumela wokuthola ozinzile kunokwedlula. imanuwali.Ngakho i-AOI isivele iyisisetshenziswa esidingekayo kubakhiqizi bamanje abacubungula i-SMT.
Ngaphansi kwezimo ezijwayelekile, i-AOI ingafakwa ezikhundleni ezi-3 kunqubo yokukhiqiza ye-SMT, ngemva kokuphrinta i-solder paste, ngaphambi kokuphinda kufakwe i-solder futhi ngemva kokuphinda kufakwe i-solder ukuze kuqashwe ikhwalithi yezigaba ezahlukene.Nakuba ukusetshenziswa kwe-AOI sekuyinjwayelo, abakhiqizi abaningi basafaka kuphela i-AOI ngemva kwesithando somlilo, futhi basebenzisa i-AOI njengonogada wokugcina ukuze umkhiqizo ungene esigabeni esilandelayo, kuphela esikhundleni sokuhlola okubonakalayo okwenziwa ngesandla.Ngaphezu kwalokho, abakhiqizi abaningi basenokungaqondi mayelana ne-AOI.Ayikho i-AOI engazuza ukuhlolwa okungamanga, futhi ayikho i-AOI engakwazi ukuzuza ukuhlolwa okugejiwe.Iningi lama-AOI likhetha ibhalansi efanele phakathi kokuhlolwa okungamanga nokuhlolwa okugejiwe, ngoba i-algorithm ye-AOI ingenye indlela.Qhathanisa isampula yamanje nesampula yekhompuyutha (kungaba isithombe noma ipharamitha), futhi wenze isinqumo esisekelwe ekufananeni.
Okwamanje, kusenamakhona amaningi afile ku-AOI ngemva kokusetshenziswa komlilo.Isibonelo, i-single-lens AOI ingathola kuphela ingxenye ye-QFP, SOP, kanye nokushisela okungamanga.Kodwa-ke, izinga lokutholwa kwe-AOI enamalensi amaningi ye-QFP kanye nezinyawo eziphakanyisiwe ze-SOP kanye nethini elincane liphakeme ngo-30% kuphela kunalelo le-single-lens AOI, kodwa linyusa izindleko ze-AOI nobunkimbinkimbi bohlelo lokusebenza.Lezi zithombe zikhiqizwa kusetshenziswa ukukhanya okubonakalayo.I-AOI ayinawo amandla okuthola amajoyinti e-solder angabonakali njenge-BGA engekho amabhola kanye ne-PLCC yokudayiswa okungamanga.
Isikhathi sokuthumela: Aug-19-2020