Iyo insinga y'umuringa ya PCB iguye, ibirango bya PCB byose bizavuga ko ari ikibazo cya laminate kandi bisaba ko umusaruro wabyo wabyara igihombo kibi.Ukurikije imyaka myinshi yo gukemura ibibazo byabakiriya, impamvu zisanzwe zituma umuringa wa PCB ugwa niyi ikurikira:
1,Ibintu bitunganya uruganda rwa PCB:
1), Umuringa wumuringa urarenze.
Umuringa wa electrolytike ukoreshwa ku isoko muri rusange usanga uruhande rumwe (rusanzwe ruzwi nka ashing foil) hamwe no gushiraho umuringa uruhande rumwe (bakunze kwita file itukura).Kwanga umuringa mubisanzwe ni galvanised umuringa hejuru ya 70UM.Ntabwo habaye icyiciro cyo kwanga umuringa kuri fayili itukura no gukaraba munsi ya 18um.Mugihe igishushanyo cyumuzunguruko cyiza kuruta umurongo wa etching, niba umuringa wibisobanuro byumuringa uhindutse hamwe nibipimo bya etching bidahindutse, igihe cyo gutura kumuringa wumuringa mugisubizo kizaba kirekire.
Kuberako zinc nicyuma gikora, mugihe insinga zumuringa kuri PCB zishizwemo mugisubizo cyigihe kinini, bizaganisha kumurongo wangirika kuruhande, bikavamo reaction yuzuye yumurongo woroshye usubiza inyuma zinc no gutandukana na substrate, ni ukuvuga, insinga y'umuringa igwa.
Ikindi kibazo nuko ntakibazo gihari kuri PCB, ariko amazi yoza no gukama nyuma yo gutobora ni mabi, bikaviramo ko insinga z'umuringa nazo zizengurutswe nigisigara gisigaye hejuru yubwiherero bwa PCB.Niba itavuwe igihe kirekire, izanavamo kwangirika kuruhande rwumuringa no guta umuringa.
Ibi bintu bikunze kwibanda kumuhanda muto cyangwa ikirere gitose.Inenge nkiyi izagaragara kuri PCB yose.Kuramo insinga z'umuringa kugirango urebe ko ibara ryubuso bwaryo hamwe nigitereko fatizo (ni ukuvuga ubuso bwitwa coarsened) bwarahindutse, butandukanye nibara ryumuringa usanzwe.Ibyo ubona ni ibara ryumuringa ryumwimerere ryurwego rwo hasi, kandi imbaraga zishishwa zumuringa kumurongo wumubyimba nazo zisanzwe.
2), Isanganya ryaho ribaho mugikorwa cya PCB, kandi insinga y'umuringa itandukanijwe na substrate n'imbaraga zo hanze.
Hano hari ikibazo cyumwanya wiyi mikorere idahwitse, kandi insinga y'umuringa yaguye izaba ifite kugoreka kugaragara, cyangwa gushushanya cyangwa ibimenyetso byerekana icyerekezo kimwe.Kuramo umugozi wumuringa mugice kibi hanyuma urebe hejuru yumuringa.Birashobora kugaragara ko ibara ryumuringa wumuringa risanzwe risanzwe, ntihazabaho kwangirika kuruhande, kandi imbaraga zo kwambura umuringa zisanzwe.
3), igishushanyo mbonera cya PCB nticyumvikana.
Gushushanya imirongo yoroheje cyane hamwe numuringa mwinshi wumuringa nabyo bizatera umurongo urenze urugero no kwangwa numuringa.
2,Impamvu yerekana inzira:
Mubihe bisanzwe, mugihe cyose ubushyuhe bushyushye hejuru yubushyuhe bwa laminate burenze iminota 30, ifiriti yumuringa hamwe nurupapuro rwakize byahujwe rwose, kuburyo gukanda muri rusange bitazagira ingaruka kumubano uhuza ifiriti yumuringa na substrate muri laminate.Nyamara, mugihe cyo kumurika no gutondekanya, niba PP yanduye cyangwa ubuso bukabije bwumuringa wumuringa byangiritse, bizanatuma habaho imbaraga zidahuza hagati yumuringa wumuringa na substrate nyuma yo kumurika, bikavamo gutandukana (gusa kubisahani binini) cyangwa insinga z'umuringa rimwe na rimwe zigwa, ariko ntihazabaho ibintu bidasanzwe mumbaraga zumuringa wumuringa hafi yumurongo.
3, Laminate impamvu yibanze:
)Niba agaciro keza k'ubwoya bw'intama budasanzwe mugihe cyo kubyara, cyangwa gutwikira amashami ya kirisitiya bikennye mugihe cyo gusya / kumuringa, bikavamo imbaraga zidahagije zumuringa ubwazo.Nyuma ya fayili mbi imaze gukanda muri PCB, insinga z'umuringa zizagwa munsi yingufu ziva mumacomeka y'uruganda rwa elegitoroniki.Ubu bwoko bwo guta umuringa burakennye.Iyo insinga z'umuringa zambuwe, ntihazabaho kwangirika kuruhande hejuru yumuringa wumuringa (ni ukuvuga ubuso bwo guhuza na substrate), ariko imbaraga zishishwa zumuringa wose zizaba zikennye cyane.
2).Imiterere ya molekulari yimiterere ya resin iroroshye kandi guhuza umusaraba ni bike mugihe cyo gukira.Biteganijwe ko ukoresha umuringa wumuringa hamwe nimpinga idasanzwe kugirango uhuze.Iyo ifiriti y'umuringa ikoreshwa mugukora laminate idahuye na sisitemu ya resin, bigatuma imbaraga zidahagije zishishwa hejuru yicyuma, hanyuma insinga z'umuringa zikagwa mugihe winjizamo.
Igihe cyo kohereza: Kanama-17-2021