Kule bhulogi, sizohlola izici ezithinta izindleko ze-PCB eziqinile nezivumelana nezimo ukuze kuthuthukiswe ukukhiqizwa kwebhodi lakho lesifunda nokwandisa izindleko zakho zokukhiqiza ibhodi lesifunda.
Amabhodi esekethe aphrintiwe (ama-PCB) ayingxenye ebalulekile yawo wonke amadivayisi kagesi esiwasebenzisayo namuhla. Kungaba omakhalekhukhwini bethu, amakhompuyutha aphathekayo, noma ngisho nezinto zikagesi zasekhaya, ama-PCB adlala indima ebalulekile ekuhlinzekeni ukuxhumana nasekunikeni amandla lawa madivayisi. Kodwa-ke, izindleko zokukhiqiza ze-PCB zingahluka kuye ngezinto ezahlukahlukene.
Ubunkimbinkimbi bedizayini:
Enye yezinto ezinkulu ezithinta izindleko ze-PCB ubunkimbinkimbi bomklamo. Uma umklamo uyinkimbinkimbi, izindleko zokukhiqiza ziphezulu. Imiklamo eyinkimbinkimbi ngokuvamile idinga ukujikeleza okuthuthukile nokuyinkimbinkimbi, okudinga amasu okukhiqiza akhethekile kanye nesikhathi esengeziwe. Ngakho-ke, inkimbinkimbi yokuklama kufanele icatshangelwe lapho kulinganiswa izindleko ze-PCB.
Ukukhetha okubalulekile:
Esinye isici esibalulekile esithinta izindleko ze-PCB ukukhethwa kwezinto ezibonakalayo. Ama-PCB aqinile ngokuvamile akhiwa kusetshenziswa i-FR-4, into evimbela ilangabi esetshenziswa kabanzi enezici ezinhle ezishisayo nezikagesi. Nokho, kunomehluko kukhwalithi nogqinsi lwe-FR-4, okungathinta izindleko zizonke ze-PCB. Ama-PCB aguquguqukayo, ngakolunye uhlangothi, asebenzisa izinto ze-substrate eziguquguqukayo njenge-polyimide. Lezi zinto zibiza kakhulu kune-FR-4, okuholela ezindlekweni eziphezulu zama-PCB avumelana nezimo.
Usayizi webhodi nenombolo yezendlalelo:
Usayizi nenani lezendlalelo ze-PCB nazo zidlala indima ebalulekile ekunqumeni izindleko zayo. Amabhodi amakhulu noma amabhodi anezendlalelo eziningi adinga izinto eziningi kanye nesikhathi sokukhiqiza, okuholela ekwenyukeni kwezindleko. Ukwengeza, ukukhiqiza amabhodi amakhulu kungase kudinge okokusebenza okukhethekile nezinsiza, okuphinde kube nomthelela ezindlekweni zizonke. Kubalulekile ukulinganisa usayizi nezidingo zesendlalelo nokusebenza okudingekayo ukuze kuthuthukiswe izindleko.
Ukuminyana kwengxenye:
Ukuminyana kwezingxenye ku-PCB kuthinta ngqo izindleko zayo zokukhiqiza. Ukuminyana kwezakhi okuphezulu kusho ukuthi izingxenye eziningi zipakishwa ezindaweni ezincane, okuholela emzileni oyinkimbinkimbi kanye nokulandela okuncane. Ukuthola ukuminyana okuphezulu kwengxenye ngokuvamile kudinga amasu okukhiqiza athuthukile njengokumba i-microvia kanye nama-vias astakiwe, okwandisa izindleko zizonke ze-PCB. Ngakho-ke, kubalulekile ukulinganisa ibhalansi phakathi kokuminyana kwengxenye kanye nezindleko ukuze kuqinisekiswe ukusebenza kahle ngaphandle kokufaka engozini kakhulu ngentengo.
Inombolo yezimbobo:
Imigodi yokubhoboza iyingxenye ebalulekile yokwenziwa kwe-PCB njengoba yenza kube lula ukuxhunywa kwezingqimba ezihlukene kanye nokufakwa kwengxenye ngokusebenzisa i-vias. Inombolo nosayizi wemigodi ebhoboziwe ithinta kakhulu izindleko zokukhiqiza. Izimbobo zokubhoboza ezinkulu nezincane, izimbobo eziyimpumputhe noma ezigqitshwe, kanye nama-microvias konke kubangela izindleko ezikhuphukile ngenxa yesikhathi esengeziwe nobunkimbinkimbi obudingwa inqubo yokumba. Ukugcina ibhalansi phakathi kokusebenza nezindleko, inombolo kanye nohlobo lwezimbobo zokubhoboza kufanele kucatshangelwe ngokucophelela.
Ukwelashwa kwendawo:
Ukulungiswa kwendawo kuyisinyathelo esibalulekile ekwenziweni kwe-PCB ukuvikela iminonjana yethusi ku-oxidation nokuqinisekisa ukudayiswa. Kunezinketho zokwelashwa ezingaphezulu ezitholakalayo njenge-HASL (Hot Air Solder Leveling), ENIG (Electroless Nickel Immersion Gold) kanye ne-OSP (Organic Solderability Preservative). Indlela ngayinye yokulungisa indawo inezindleko ezihambisanayo ezihlukene, ezinqunywa ikakhulukazi izidingo zempahla nezabasebenzi. Lapho ukhetha ukuphela kwendawo efanele ye-PCB yakho, kubalulekile ukuhlola ukusebenza okudingekile kanye nesabelomali.
Inani le-oda:
Inani le-oda le-PCB lithinta zonke izindleko. Amanani ama-oda amakhulu ngokuvamile aholela ezomnotho zesikali, lapho izindleko zokukhiqiza amayunithi zincishiswa. Lokhu kungenxa yokuthi abakhiqizi bangakwazi ukuthuthukisa izinqubo zabo zokukhiqiza, banciphise izindleko zokusetha futhi baqondise ukusebenza kwama-oda amaningi. Ngakolunye uhlangothi, ama-oda amancane angase angenise izindleko ezengeziwe zokusetha nokukhiqiza, okuwenza abize kakhulu. Ngakho-ke, ukufaka ama-oda amakhulu kusiza ukunciphisa izindleko zeyunithi yama-PCB.
Inketho yomhlinzeki:
Ukukhetha abahlinzeki be-PCB kubalulekile ekuqinisekiseni ikhwalithi nokusebenza kahle kwezindleko. Abahlinzeki abahlukene bangase babe namamodeli entengo ahlukene ngokusekelwe kulwazi lwabo, okokusebenza, namandla okwenza. Kubalulekile ukucwaninga nokuhlola abangaba abahlinzeki-mpahla, kucatshangelwa izici ezifana nesithunzi sabo, izitifiketi, izinqubo zokulawula ikhwalithi nokubuyekezwa kwamakhasimende. Ukusebenza nabahlinzeki abathembekile nabanolwazi kusiza ukufeza ibhalansi efanelekile phakathi kwezindleko nekhwalithi.
Ngokufigqiwe
Kunezici ezimbalwa ezithinta izindleko zama-PCB aqinile futhi aguquguqukayo.Ubunkimbinkimbi bedizayini, ukukhethwa kwempahla, usayizi webhodi, ukuminyana kwengxenye, inani lezimbobo zokubhoboza, ukuphela kwendawo, inani le-oda nokukhetha abahlinzeki konke kunomthelela ezindlekweni eziphelele. Ngokucubungula lezi zici ngokucophelela kanye nokwenza ibhalansi phakathi kokusebenza nezomnotho, abakhiqizi bezinto zikagesi bangakwazi ukuthuthukisa izindleko ze-PCB kuyilapho beqinisekisa ikhwalithi ephezulu nokusebenza kwemikhiqizo yabo.
Isikhathi sokuthumela: Oct-11-2023
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