Umwobo uyobora Via umwobo uzwi kandi nko mu mwobo.Kugirango wuzuze ibyifuzo byabakiriya, ikibaho cyumuzunguruko ukoresheje umwobo kigomba gucomeka.Nyuma yimyitozo myinshi, uburyo bwa gakondo bwa aluminium yamashanyarazi burahindurwa, kandi ikibaho cyumuzunguruko hejuru yumugurisha mask hamwe no gucomeka byuzuye hamwe na meshi yera.umwobo.Umusaruro uhamye hamwe nubwiza bwizewe.

Binyuze mu mwobo bigira uruhare rwo guhuza no kuyobora imiyoboro.Iterambere ryinganda za elegitoroniki naryo riteza imbere iterambere rya PCB, kandi rinashyira imbere ibisabwa byinshi murwego rwo gukora ibicuruzwa byacapwe hamwe na tekinoroji yo hejuru.Binyuze mu buhanga bwo gucomeka umwobo byaje kubaho, kandi bigomba kuba byujuje ibisabwa bikurikira icyarimwe:

(1) Hariho umuringa unyuze mu mwobo, kandi mask yo kugurisha irashobora gucomeka cyangwa kudacomeka;

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Hamwe niterambere ryibicuruzwa bya elegitoronike mu cyerekezo cy "urumuri, ruto, rugufi, na ruto", PCB nazo zateye imbere kuburyo bwinshi kandi bigoye.Kubwibyo, umubare munini wa SMT na BGA PCBs wagaragaye, kandi abakiriya bakeneye gucomeka mugihe cyo gushiraho ibice, cyane cyane harimo imirimo itanu:

.cyane cyane iyo dushyize unyuze kuri padi ya BGA, tugomba kubanza gukora umwobo hanyuma tugasiga zahabu kugirango byoroherezwe kugurisha BGA.

(2) Irinde ibisigisigi bya flux unyuze mu mwobo;

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(5) Irinde imipira yamabati gusohoka mugihe cyo kugurisha imiraba, bigatera imiyoboro migufi.

Kumenyekanisha inzira yo gucomeka

Ku mbaho ​​zo hejuru, cyane cyane gushiraho BGA na IC, unyuze mu mwobo ugomba kuba uringaniye, convex na conve wongeyeho cyangwa ukuyemo 1mil, kandi ntihakagombye kubaho amabati atukura ku nkombe zinyuze mu mwobo;unyuze mu mwobo uhisha umupira w'amabati, kugirango ugere kubakiriya Ukurikije ibisabwa, inzira yo gucomeka umwobo irashobora gusobanurwa ko itandukanye, imigendekere yinzira ni ndende cyane, kugenzura inzira biragoye, kandi amavuta akunze kugabanuka mugihe ikirere gishyushye kuringaniza hamwe nicyatsi kibisi kugurisha ibizamini byo kurwanya;ibibazo nko guturika kwa peteroli nyuma yo gukomera bibaye.Noneho ukurikije imiterere nyayo yumusaruro, inzira zitandukanye zo gucomeka za PCB zavunaguye, kandi kugereranya no gusobanura bimwe mubikorwa hamwe nibyiza nibibi:

Icyitonderwa: Ihame ryakazi ryo kuringaniza ikirere gishyushye ni ugukoresha umwuka ushyushye kugirango ukureho ibicuruzwa birenze hejuru yubuso hamwe nu mwobo wibibaho byumuzunguruko wacapwe, kandi uwagurishije asigaye yambitswe neza ku makarito, imirongo yabagurisha idashobora kwihanganira hamwe nububiko bwo gupakira hejuru, aribwo buryo bwo kuvura hejuru yuburyo bwacapwe bwumuzingo umwe.

1. Uburyo bwo gucomeka umwobo nyuma yo kuringaniza umwuka ushushe
Inzira igenda ni: ikibaho cyo kugurisha mask → HAL → gucomeka umwobo → gukiza.Inzira idacomeka yemewe kugirango ikorwe.Nyuma yumwuka ushyushye uringaniye, ecran ya aluminiyumu cyangwa ecran ya wino ikoreshwa kugirango urangize unyuze mu mwobo usabwa n'umukiriya kubihome byose.Wino wacomeka wino irashobora kuba wino yunvikana cyangwa wino ya thermosetting.Mugihe cyo kwemeza ibara rimwe rya firime itose, wino wacometse ni byiza gukoresha wino nkubuso bwibibaho.Ubu buryo burashobora kwemeza ko kunyura mu mwobo bitazabura amavuta nyuma yumuyaga ushyushye uringaniye, ariko biroroshye gutera wino yo gucomeka kwanduza hejuru yubuyobozi kandi bitaringaniye.Abakiriya bakunda kugurisha ibinyoma (cyane cyane muri BGA) mugihe cyo kuzamuka.Abakiriya benshi rero ntibemera ubu buryo.

2. Umuyaga ushyushye uringaniza inzira yimbere

2.1 Koresha urupapuro rwa aluminiyumu kugirango ucomeke umwobo, ushimangire, kandi usukure ikibaho kugirango wimure ibishushanyo

Ubu buryo bwa tekinoloji bukoresha imashini igenzura imibare kugirango igabanye urupapuro rwa aluminiyumu rugomba gucomeka kugirango rukore ecran, hanyuma ucomeke umwobo kugirango urebe ko unyuze mu mwobo wuzuye.Irangi ry'umwobo rishobora kandi gukoreshwa hamwe na wino ya termosetting.Ibiranga bigomba kuba hejuru mubukomere., Kugabanuka kw'ibisigarira ni bito, kandi imbaraga zo guhuza urukuta rw'umwobo ni nziza.Inzira itemba ni: mbere yo kuvura → gucomeka umwobo → gusya isahani transfer kwimura icyitegererezo → guterana → ikibaho cyo kugurisha mask

Ubu buryo burashobora kwemeza ko umwobo wacometse mu mwobo uringaniye, kandi ntakibazo kizaba cyiza nko guturika kwa peteroli no gutonyanga amavuta kumpera yumwobo mugihe uringaniza numwuka ushushe.Nyamara, iyi nzira isaba ubunini bwumuringa inshuro imwe kugirango uburebure bwumuringa bwurukuta rwumwobo bujuje ubuziranenge bwabakiriya.Kubwibyo, ibisabwa kugirango umuringa ushyirwe ku rubaho rwose ni muremure cyane, kandi imikorere yimashini isya isahani nayo iri hejuru cyane, kugirango ibisigarira hejuru yumuringa bikurweho burundu, kandi hejuru yumuringa hasukuye kandi ntabwo byanduye. .Inganda nyinshi za PCB ntizifite inshuro imwe yumubyimba wumuringa, kandi imikorere yibikoresho ntabwo yujuje ibisabwa, bigatuma bidakoreshwa cyane muruganda rwa PCB.

2.2 Nyuma yo gucomeka umwobo hamwe nurupapuro rwa aluminiyumu, shyira ahagaragara-shyira ahagaragara ikibaho cyo kugurisha mask

Ubu buryo bukoresha imashini ya CNC yo gucukura kugirango isohore urupapuro rwa aluminiyumu rugomba gucomeka kugirango rukore ecran, uyishyire kuri mashini icapa ecran kugirango ucomeke umwobo, hanyuma uyihagarike muminota itarenze 30 nyuma yo gucomeka, hanyuma ukoreshe ecran ya 36T kugirango ugaragaze neza hejuru yubuyobozi.Inzira igenda ni: mbere yo kuvura-gucomeka umwobo-silike ecran-mbere-guteka-kwerekana-iterambere-gukiza

Iyi nzira irashobora kwemeza ko unyuze mu mwobo utwikiriwe neza na peteroli, umwobo ucomeka neza, kandi ibara rya firime itose irahoraho.Umwuka ushyushye umaze kuringanizwa, urashobora kwemeza ko unyuze mu mwobo udatoboye kandi isaro y'amabati ntihishe mu mwobo, ariko biroroshye gutera wino mu mwobo nyuma yo gukira.Amashanyarazi agurisha atera kugurishwa nabi;nyuma yumuyaga ushyushye uringaniye, impande za vias bubble zikabura amavuta.Biragoye gukoresha ubu buryo kugirango ugenzure umusaruro, kandi birakenewe ko injeniyeri zitunganya ibintu zikoresha inzira zidasanzwe hamwe nibipimo kugirango hamenyekane ubuziranenge bwibyobo.

2.3 Urupapuro rwa aluminiyumu rwacometse mu mwobo, rwatejwe imbere, rwakize mbere, kandi rusukuye, hanyuma mask yo kugurisha ikorerwa hejuru.

Koresha imashini icukura CNC kugirango ucukure urupapuro rwa aluminiyumu rusaba gucomeka imyobo kugirango ukore ecran, uyishyire kuri mashini ya printer ya shift ya ecran kugirango ucomeke umwobo.Gucomeka ibyobo bigomba kuba byuzuye kandi bigasohoka kumpande zombi, hanyuma bigakomera kandi bigasya ikibaho kugirango bivurwe hejuru.Inzira igenda ni: mbere yo kuvura-gucomeka umwobo-mbere-guteka-iterambere-mbere-gukiza-ikibaho hejuru yo kugurisha mask

Kuberako ubu buryo bukoresha umwobo ukiza kugirango umenye neza ko unyuze mu mwobo udatakaza amavuta cyangwa ngo uturike nyuma ya HAL, ariko nyuma ya HAL, biragoye gukemura burundu ikibazo cyububiko bwamabati mu mwobo na tini ku mwobo, bityo abakiriya benshi ntibabyemera.

2.4 Mask yagurishijwe hamwe nu mwobo wacometse birangirira icyarimwe.

Ubu buryo bukoresha ecran ya 36T (43T), yashyizwe kuri mashini icapura ecran, ukoresheje padi cyangwa uburiri bwimisumari, kandi iyo urangije ubuso bwibibaho, inzira zose zinyuze mu mwobo ziracomeka.Inzira igenda ni: kwitegura-kwerekana icapiro- -Gutegura-guteka-kwerekana-iterambere-gukiza.

Igihe cyo gukora ni kigufi kandi igipimo cyo gukoresha ibikoresho ni kinini.Irashobora kwemeza ko kunyura mu mwobo bitazabura amavuta nyuma yubushyuhe bwikirere buringaniye, kandi unyuze mu mwobo ntuzabikwa.Ariko, kubera gukoresha ecran ya silike mugucomeka ibyobo, hari umwuka mwinshi mumyuka., Umwuka waguka kandi ucamo masike yagurishijwe, bikavamo imyenge nuburinganire.Hazabaho umubare muto unyuze mu mwobo uhishe mu kirere gishyushye.Kugeza ubu, nyuma yubushakashatsi bwinshi, isosiyete yacu yahisemo ubwoko butandukanye bwa wino nubukonje, ihindura umuvuduko wicapiro rya ecran, nibindi, kandi ahanini yakemuye icyuho nuburinganire bwa vias, kandi yakoresheje ubu buryo kubwinshi umusaruro.