PCB nge-plug hole

Nge-hole kubizwa nangokuthi imbobo. Ukuze uhlangabezane nezidingo zamakhasimende, imbobo yebhodi lesifunda kufanele ixhunywe. Ngemuva kokuzijwayeza okuningi, inqubo yendabuko yomgodi wepulaki iyashintshwa, futhi insimbi yokumelana nomgodi wepulaji webhodi lesifunda kuqediwe ngomugqa omhlophe. Ukukhiqizwa okuzinzile nekhwalithi ethembekile.

I-Via hole idlala indima ekuxhumaniseni nasekuqhubeni amasekethe. Ukuthuthukiswa komkhakha we-elekthronikhi futhi kukhuthaza ukuthuthukiswa kwe-PCB, futhi kubeka phambili izidingo eziphakeme zenqubo yokukhiqiza ye-PCB nobuchwepheshe bokukhweza ebusweni. Inqubo nge-hole plug plug yaba khona futhi kufanele ihlangabezane nalezi zidingo ezilandelayo:

（1, Uma kukhona ithusi emgodini, ingaxhunywa ngaphandle kokushisela ukumelana;

（2） Kufanele kube nomthofu wethini emgodini, ngemfuneko ethile yokujiya (ama-microns ama-4), futhi akukho-solder emelana noyinki oyongena emgodini, okuholela ebuhlalu bethini emgodini;

（3） Imbobo evulekileyo kumele ibe ne-solder emelana nomgodi we-inki plug, opaque, futhi ongeke ube nendandatho yethini, ubuhlalu be-tin, ubucayi nezinye izidingo.

Ngokukhiqizwa kwemikhiqizo ye-elekthronikhi lapho kuqondiswa khona “ukukhanya, okuncane, okufushane nokuncane”, i-PCB nayo ithuthuka ibe namandla aphezulu nobunzima obukhulu. Ngakho-ke, kunenani elikhulu lama-PCB e-SMT ne-BGA, futhi amakhasimende adinga izimbobo zepulagi lapho kufakwa izingxenye, ezinemisebenzi emihlanu kakhulu:

（1, Vimbela isifunda esifushane esidalwe ngothini ongena ngaphesheya kwesici kusuka embobeni ngesikhathi se-PCB ngaphezulu kokunamathisela ngegagasi; Ikakhulu, lapho sibeka i-via kuphedi ye-BGA, kufanele siqale senze umgodi wepulaki bese sifaka igolide ukwenza lula i-BGA welding.

（2） Gwema izinsalela ezigelezayo emgodini ophakathi;

（3） Ngemuva kokuphakama kwendawo nokuhlanganiswa kwengxenye yefektri ye-elekthronikhi sekuqediwe, i-PCB kufanele imunce i-vacuum kumhloli ukwenza ingcindezi engemihle:

） 4） Vimbela okunamathiselwe kwe-solder ebusweni ukuthi kungagobhozi kungena emgodini, okuholele ekushiseni kwamanga futhi kuthinte ukufakwa;

） 5, Vimbela ubuhlalu bethini ekuqhumeni phakathi nokufakwa kwegagasi okwedlulele, okuholela kwisifunda esifushane.

Ukuqaphela ubuchwepheshe be-plug plug yomgodi oqhubayo

Okweletha ipuleti ebusweni, ikakhulukazi ukufakwa kwe-BGA ne-IC, imbobo yepulagi yomgodi kufanele ibe yicaba, ingquza kanye ne-concave plus noma kususwe u-1mil, futhi onqenqemeni lomgodi ngeke lube bomvu nothayela; Ubuhlalu bethini bugcinwa emgodini ophakathi nendawo. Ukuze kuhlangatshezwane nezidingo zamakhasimende, kunezinqubo ezahlukahlukene zemigodi yamapulaki emgodini ophakathi. Ukugeleza kwenqubo kukhulu kakhulu futhi ukulawulwa kwenqubo kunzima. Uwoyela uvame ukuwa ngesikhathi sokushisa komoya oshisayo kanye nokuhlolwa kokumelana no-green solder; Ukuqhuma kuka-oyela nezinye izinkinga kwenzeka ngemuva kokuphulukiswa. Ngokuya ngezimo zokukhiqiza zangempela, izinqubo ezahlukahlukene ze-plug hole ze-PCB zifingqiwe, futhi ezinye iziqhathaniso nezincazelo zenziwa ngenqubo, ubuhle nobubi:

Qaphela: umgomo osebenzayo wokulinganisa umoya oshisayo ukusebenzisa umoya oshisayo ukususa i-solder eyeqile ebusweni nasemigodini yebhodi lesifunda eliphrintiwe, futhi i-solder esele isembozwe ngokulinganayo kuphedi, imigqa ye-solder enganqandeki namaphoyinti okupakisha angaphezulu, ingenye yezindlela zokwelashwa kwebhodi yesifunda ephrintiwe.

1, Plug imbobo ubuchwepheshe emva hot air yokululama

Inqubo ukugeleza kuyinto: ipuleti ebusweni ukumelana Welding → Hal → ipulaki imbobo → elapha. Inqubo engeyona imbobo yepulaki yamukelwa ukukhiqizwa. Ngemuva kokushisa komoya oshisayo, kusetshenziswa ipuleti le-aluminium noma isikrini sikayinki ukuqedela izimbobo zemigodi yazo zonke izinqaba ezidingeka kumakhasimende. Uyinki wokufaka ipulagi kungaba uyinki we-photosensitive noma i-thermosetting ink. Ngaphansi kwesimo sokuqinisekisa ukungaguquguquki kombala wefilimu emanzi, uyinki womgodi wepulaki kufanele asebenzise uyinki ofanayo nobuso bepuleti. Le nqubo ingaqinisekisa ukuthi umgodi wokudlula ngeke ulahle uwoyela ngemuva kokulinganiswa komoya oshisayo, kepha kulula ukudala uyinki womgodi wepulaki ukuze kungcolise ipuleti futhi lingalingani. Amakhasimende kulula ukudala i-soldering yamanga ngesikhathi sokufakwa (ikakhulukazi ku-BGA). Ngakho-ke, amakhasimende amaningi awayamukeli le ndlela.

2, Hot air yokululama phambi ipulaki imbobo ubuchwepheshe

2.1 sebenzisa ishidi le-aluminium ukuxhuma izimbobo, ukuqinisa nokugaya amapuleti, bese udlulisa ihluzo

Kule nqubo, kusetshenziselwa umshini wokubhola we-CNC ukubhoboza ishidi le-aluminium ukuthi lixhunywe, likwenze kube yisikrini, bese lixhuma imbobo ukuze kuqinisekiswe ukuthi imbobo yepulagi yomgodi igcwele, uyinki womgodi wepulagi, uyinki womgodi wepulagi, ne-thermosetting uyinki ungasetshenziswa futhi. Kumele kubonakale ngobulukhuni obukhulu, ushintsho oluncane lwe-resin shrinkage nokunamathela okuhle nodonga lomgodi. Inqubo ukugeleza kuyinto: pretreatment → ipulaki imbobo → ipuleti ukugaya → iphethini ukudluliswa → etching → ipuleti ebusweni ukumelana Welding

Le ndlela ingaqinisekisa ukuthi imbobo yepulagi yomgodi iyisicaba futhi ukulinganisa umoya oshisayo ngeke kube nezinkinga zekhwalithi njengokuqhuma kukawoyela nokwehla kukawoyela onqenqemeni lomgodi. Kodwa-ke, le nqubo idinga ukuqina kwesikhathi esisodwa kwethusi ukwenza ukuqina kwethusi kodonga lomgodi kuhlangabezane nezinga lekhasimende. Ngakho-ke, inezidingo eziphakeme zokugcwala kwethusi kwepuleti lonke nokusebenza kwesigayo sepuleti ukuqinisekisa ukuthi i-resin ebusweni bethusi isuswe ngokuphelele futhi indawo yethusi ihlanzekile futhi ayingcolisiwe. Amafektri amaningi e-PCB awanayo inqubo yokuqina yokuqinisa ithusi yesikhathi esisodwa, futhi ukusebenza kwemishini akukwazi ukuhlangabezana nezidingo, okuholele ekusetshenzisweni okuncane kwale nqubo ezimbonini ze-PCB.

2.2 xhuma umgodi ngeshidi le-aluminium bese ubheka ngqo indawo yepuleti yokushisela ukumelana

Kule nqubo, kusetshenziswa umshini wokubhola we-CNC ukubhoboza ishidi le-aluminium ukuthi lixhunywe kupuleti lesikrini, elifakwe emshinini wokuphrinta wesikrini wokuxhuma. Ngemuva kokuthi ukuqedwa kuqediwe, ngeke kupakwe ngaphezu kwemizuzu engama-30, futhi isikrini se-36t sisetshenziselwa ukubheka ngqo indawo yepuleti yokushisela ukumelana. Ukugeleza kwenqubo uku: ukwelashwa kusengaphambili – ukuxhuma – ukuphrinta kwesikrini – ukomisa kwangaphambilini – ukuvezwa – Ukuthuthukiswa – ukwelashwa

Le nqubo ingaqinisekisa ukuthi ikhava kawoyela womgodi wokuhamba muhle, umgodi wepulaki uyisicaba, futhi umbala wefilimu omanzi uyavumelana. Ngemuva kokushisa komoya oshisayo, kungaqinisekisa ukuthi akukho thini emgodini futhi akukho buhlalu bethini obufihliwe emgodini, kepha kulula ukudala iphedi le-solder ku-inki emgodini ngemuva kokuphulukiswa, okuholele ekutheni i-solderability engemihle; Ngemuva kokushisa komoya oshisayo, onqenqemeni lwamabhamuza emgodi bese kwehla uwoyela. Kunzima ukulawula ukukhiqizwa ngale ndlela yenqubo. Onjiniyela bezinqubo kumele basebenzise izinqubo ezikhethekile nemingcele ukuqinisekisa ikhwalithi yomgodi wepulagi.

2.3 yenza ipuleti ebusweni ukumelana nokushisela ngemuva komgodi we-aluminium sheet plug, intuthuko, ukwelashwa kwangaphambili nokugaya.

Ishidi le-aluminium elidinga imbobo yepulagi lizobhalwa ngomshini wokubhola we-NC ukwenza ipuleti lesikrini, bese lifakwa emshinini wokuphrinta wesikrini sokushintsha umgodi wepulagi. Umgodi wepulagi kufanele ugcwale futhi kuphume izinhlangothi zombili kukhethwe. Ngemuva kokuphulukiswa, ipuleti lokugaya kufanele libe ngaphansi kokuphathwa kwepuleti ngaphezulu. Inqubo ukugeleza yilezi: pretreatment – ipulaki hole – omiswe pre – Development – pre belapha – ipuleti ebusweni ukumelana Welding

Ngoba le nqubo isebenzisa ukuqiniswa komgodi wepulagi, ingaqinisekisa ukuthi akukho ukwehla kukawoyela nokuqhuma kukawoyela nge-Hal ngemuva, kepha kunzima ukuxazulula ngokuphelele ithini kubuhlalu be-tin nangemigodi ngemuva kwe-Hal, amakhasimende amaningi enza hhayi ukwamukela.

2.4 ipuleti ebusweni ukumelana nokushisela nomgodi wepulagi kufanele kuqedwe ngasikhathi sinye.

Le ndlela isebenzisa umucu wocingo wama-36t (43T), ofakwe emshinini wokuphrinta wesikrini, futhi isebenzisa ipuleti elekelelayo noma umbhede wezipikili ukuxhuma yonke imigodi ngenkathi igcwalisa indawo yepuleti. Inqubo yokugeleza yilezi: ukwelashwa kwangaphambili – ukuphrinta kwesikrini – ukomisa kwangaphambilini – ukuvezwa – Ukuthuthukiswa – ukwelashwa.

Le nqubo inezinzuzo zesikhathi esifushane kanye nezinga eliphakeme lokusetshenziswa kwemishini, engaqinisekisa ukuthi akukho kulahleka kukawoyela emgodini nethini emgodini ngemuva kokulinganiswa komoya oshisayo. Kodwa-ke, ngenxa yokusetshenziswa kokuphrinta kwesikrini sikasilika emgodini wepulagi, kunomoya omningi emgodini odlulayo. Ngesikhathi sokuqina, umoya uyanweba futhi udabule ifilimu le-solder resist, okuholela emigodini nasekungalingani. Kuzoba nenani elincane likathayela emgodini ngemuva kokulinganiswa komoya oshisayo. Njengamanje, ngemuva kwenani elikhulu lokuhlolwa, inkampani yethu ixazulule ngokuyisisekelo inkinga ye-hole-hole kanye nokungalingani ngokukhetha izinhlobo ezahlukene zikayinki kanye ne-viscosity nokulungisa ingcindezi yokuphrinta kwesilika kwesikrini. Le nqubo isetshenziselwe ukukhiqizwa ngobuningi