Umwobo uyobora Via umwobo uzwi kandi nko mu mwobo. Kugirango wuzuze ibyifuzo byabakiriya, ikibaho cyumuzunguruko ukoresheje umwobo kigomba gucomeka. Nyuma yimyitozo myinshi, inzira gakondo yo gucomeka ya aluminiyumu irahindurwa, hanyuma ikibaho cyumuzunguruko hejuru yumugurisha mask hamwe no gucomeka birangizwa na meshi yera. umwobo. Umusaruro uhamye hamwe nubwiza bwizewe.
Binyuze mu mwobo bigira uruhare rwo guhuza no kuyobora imirongo. 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. Hifashishijwe ikoranabuhanga ryo gucomeka umwobo ryabayeho, kandi rigomba kuba ryujuje ibi bikurikira:
(1) Hariho umuringa gusa 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 Ibikorwa bitanu:
. cyane cyane iyo dushyize umwobo 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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Kumenyekanisha inzira yo gucomeka
Ku mbaho zo hejuru, cyane cyane BGA na IC zishyirwaho, unyuze mumacomeka igomba kuba iringaniye, convex na conave wongeyeho cyangwa ukuyemo 1mil, kandi ntihakagombye kubaho amabati atukura kumpera yumwobo; unyuze mu mwobo uhisha umupira w'amabati, kugirango ugere kubakiriya Inzira yo gucomeka ikoresheje umwobo irashobora gusobanurwa ko itandukanye. Inzira igenda ni ndende cyane kandi kugenzura inzira biragoye. Hariho ibibazo byinshi nko kugabanuka kwamavuta mugihe cyo gushyushya ikirere hamwe nubushakashatsi bwamavuta yo kugurisha; guturika amavuta nyuma yo gukira. 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. Gucomeka nyuma yo gushyushya umwuka ushushe
Inzira igenda ni: ikibaho cyo kugurisha mask → HAL → gucomeka umwobo → gukiza. Kudacomeka inzira byemewe kubyara umusaruro. Nyuma yo gushyushya ikirere gishyushye, ecran ya aluminiyumu cyangwa ecran yo guhagarika wino ikoreshwa kugirango urangize unyuze mu mwobo usabwa nabakiriya kubihome byose. Irangi ryo gucomeka rishobora kuba wino yunvikana cyangwa wino ya thermosetting. Mugihe cyo kwemeza ibara rimwe rya firime itose, nibyiza gukoresha wino imwe nkubuso bwibibaho. Iyi nzira irashobora kwemeza ko kunyura mu mwobo bitazabura amavuta nyuma yumuyaga ushyushye uringaniye, ariko biroroshye gutera wino wacometse wino yanduza hejuru yubuyobozi kandi butaringaniye. Abakiriya bakunda kugurisha ibinyoma (cyane cyane muri BGA) mugihe cyo kuzamuka. Abakiriya benshi rero ntibemera ubu buryo.
2. Kuringaniza ikirere gishyushye no gucomeka
2.1 Koresha urupapuro rwa aluminiyumu kugirango ucomeke umwobo, ushimangire, kandi usukure ikibaho kugirango wohereze ibishushanyo
Ubu buryo bwikoranabuhanga bukoresha imashini ya CNC yo gucukura kugirango isohore 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, kandi ibiyiranga bigomba kuba bikomeye. , Kugabanuka kw'ibisigarira ni bito, kandi imbaraga zo guhuza urukuta rw'umwobo ni nziza. Inzira igenda ni: mbere yo kuvura → gucomeka umwobo → gusya isahani transfer uburyo bwo kwimura → gutobora → ikibaho cyo kugurisha mask. Ubu buryo burashobora kwemeza ko umwobo wacometse mu mwobo uringaniye, kandi ntakibazo kizabaho nko guturika kwa peteroli no gutonyanga amavuta kumpande yumwobo mugihe cyo gushyushya ikirere. Nyamara, iyi nzira isaba ubunini bwumuringa inshuro imwe kugirango uburebure bwumuringa bwurukuta rwumwobo bujuje ubuziranenge bwabakiriya. Kubwibyo, ibisabwa kugirango umuringa ushyireho isahani yose 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 icapura ecran kugirango ucomeke, hanyuma uyihagarike muminota itarenze 30 nyuma yo kurangiza gucomeka, hanyuma ukoreshe 36T Mugaragaza kugirango ugaragaze neza ubuso bwibibaho. Inzira igenda ni: kwiyitirira-gucomeka umwobo-silike ya ecran-mbere yo guteka-kwerekana-iterambere-gukiza
Iyi nzira irashobora kwemeza ko unyuze mu mwobo utwikiriwe neza na peteroli, umwobo ucomeka neza, kandi ibara rya firime itose. Nyuma yumuyaga ushyushye uringaniye, birashobora kwemeza ko unyuze mu mwobo udatobotse, kandi umwobo ntuhisha amasaro, ariko biroroshye gutera wino mu mwobo nyuma yo gukiza Amashanyarazi agurisha atera kwangirika nabi; nyuma yumuyaga ushyushye uringaniye, impande za vias zirahuzagurika hanyuma amavuta akurwaho. 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, rwateye imbere, rwarakize mbere, kandi rusukuye, hanyuma hakorwa mask yo kugurisha 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 cyo kugurisha mask. Kuberako ubu buryo bukoresha umwobo ukiza kugirango umenye neza ko unyuze mu mwobo udatemba cyangwa ngo uturike nyuma ya HAL, ariko nyuma ya HAL, amasaro y'amabati yihishe mu mwobo na tini ku mwobo biragoye kubikemura burundu, bityo abakiriya benshi ntibabyemera.
2.4 Ikibaho cyo kugurisha mask hamwe nu mwobo wacometse icyarimwe.
Ubu buryo bukoresha ecran ya 36T (43T), yashyizwe kumashini icapura ecran, ukoresheje isahani yinyuma cyangwa uburiri bwimisumari, mugihe urangije ikibaho, ucomeka inzira yose unyuze mu mwobo, inzira igenda ni: ecran-silk ya ecran- -Pre- guteka - kwerekana - iterambere - gukiza. Igihe cyo gukora ni kigufi, kandi igipimo cyo gukoresha ibikoresho ni kinini. Irashobora kwemeza ko kunyura mu mwobo bitazabura amavuta kandi unyuze mu mwobo ntuzabikwa nyuma yumuyaga ushyushye uringaniye, ariko kubera ko ecran ya silike ikoreshwa mugucomeka, Hano hari umwuka mwinshi muri vias. Mugihe cyo gukira, umwuka waguka kandi uca mumasoko yabagurishije, bigatera umwobo hamwe nuburinganire. Hazabaho umubare muto w'amabati unyuze mu mwobo kugirango ushushe umwuka ushushe. Kugeza ubu, nyuma yubushakashatsi bwinshi, isosiyete yacu yahisemo ubwoko butandukanye bwa wino nubukonje, ihindura umuvuduko wogucapisha ecran, nibindi, kandi ahanini byakemuye icyuho nuburinganire bwa vias, kandi ifata ubu buryo kubwinshi umusaruro.