Kubikoresho bya elegitoronike, ubushyuhe runaka butangwa mugihe gikora, kuburyo ubushyuhe bwimbere bwibikoresho buzamuka vuba. Niba ubushyuhe butagabanijwe mugihe, ibikoresho bizakomeza gushyuha, kandi ibikoresho bizananirana kubera ubushyuhe bwinshi. Ubwizerwe bwibikoresho bya elegitoronike Imikorere izagabanuka.
Kubwibyo, ni ngombwa cyane gufata neza uburyo bwo gukwirakwiza ubushyuhe ku kibaho cyumuzunguruko. Gukwirakwiza ubushyuhe bwikibaho cyumuzunguruko wa PCB nigice cyingenzi cyane, none ni ubuhe buryo bwo gukwirakwiza ubushyuhe bwubuyobozi bwumuzunguruko wa PCB, reka tubiganireho hepfo.
Gukwirakwiza ubushyuhe binyuze mu kibaho cya PCB ubwacyo Ubu imbaho za PCB zikoreshwa cyane ni umuringa wambaye umuringa / epoxy ibirahuri by'ibirahure cyangwa imyenda y'ibirahure ya fenolike, kandi hakoreshwa impapuro nkeya zishingiye ku mbaho.
Nubwo iyi substrate ifite ibikoresho byiza byamashanyarazi nibitunganywa, bifite ubushyuhe buke. Nuburyo bwo gukwirakwiza ubushyuhe kubice bishyushya cyane, ntibishoboka ko umuntu yitega ko ubushyuhe buturuka kuri PCB ubwabwo bukora ubushyuhe, ariko gukwirakwiza ubushyuhe hejuru yikintu kugeza mukirere gikikije.
Nyamara, nkuko ibicuruzwa bya elegitoroniki byinjiye mugihe cya miniaturizasi yibigize, kwishyiriraho cyane, no guteranya ubushyuhe bwinshi, ntibihagije kwishingikiriza hejuru yikintu gifite ubuso buto cyane kugirango ubushyuhe bugabanuke.
Muri icyo gihe, kubera gukoresha cyane ibice byubuso bwubuso nka QFP na BGA, ubushyuhe butangwa nibice byimurirwa mubuyobozi bwa PCB kubwinshi. Kubwibyo, inzira nziza yo gukemura ubushyuhe ni ukunoza ubushobozi bwo gukwirakwiza ubushyuhe bwa PCB ubwayo ihuye neza na
Shyushya ibintu. Kiyobora cyangwa kumurika.
Shyushya ukoresheje Hasi ni Ubushyuhe Binyuze
Kumurika umuringa inyuma ya IC bigabanya ubukana bwumuriro hagati yumuringa numwuka
Imiterere ya PCB
Ibikoresho byangiza ubushyuhe bishyirwa ahantu hakonje.
Igikoresho cyo kumenya ubushyuhe gishyirwa ahantu hashyushye.
Ibikoresho biri ku kibaho kimwe cyacapwe bigomba gutondekwa uko bishoboka kwose ukurikije agaciro ka calorificateur hamwe nurwego rwo gukwirakwiza ubushyuhe. Ibikoresho bifite agaciro gake cyane cyangwa kutarwanya ubushyuhe buke (nka transistor ntoya yerekana ibimenyetso, imiyoboro mito mito ihuriweho, imiyoboro ya electrolytike, nibindi) igomba gushyirwa mukirere gikonje. Imigezi yo hejuru cyane (ku bwinjiriro), ibikoresho bifite ubushyuhe bunini cyangwa birwanya ubushyuhe (nka transistoriste yamashanyarazi, imiyoboro minini ihuriweho, nibindi) bishyirwa kumurongo wimbere wumuyaga ukonje.
Mu cyerekezo gitambitse, ibikoresho-bikomeye bishyirwa hafi yuruhande rwibibaho byacapwe bishoboka kugirango bigabanye inzira yo kohereza ubushyuhe; mu cyerekezo gihagaritse, ibikoresho-bifite imbaraga nyinshi bishyirwa hafi yisonga ryicapiro rishoboka kugirango bigabanye ingaruka zibi bikoresho ku bushyuhe bwibindi bikoresho.
Gukwirakwiza ubushyuhe bwibibaho byacapwe mubikoresho ahanini bishingiye ku kirere, bityo inzira yo gutembera mu kirere igomba kwigwa mugihe cyashushanyaga, kandi igikoresho cyangwa ikibaho cyumuzingo cyacapwe kigomba gushyirwaho muburyo bukwiye.
Iyo umwuka utemba, burigihe bikunda gutembera ahantu hafite imbaraga nke, mugihe rero ugenera ibikoresho kurubaho rwacapwe, irinde gusiga ikirere kinini ahantu runaka. Iboneza ryibicapo byinshi byacapwe mumashini yose bigomba no kwitondera ikibazo kimwe.
Igikoresho cyumva ubushyuhe gishyirwa neza mubushuhe buke (nko munsi yigikoresho). Ntuzigere ubishyira hejuru yicyuma gishyushya. Nibyiza gutitira ibikoresho byinshi kumurongo utambitse.
Ibikoresho bifite ingufu nyinshi kandi bitanga ubushyuhe byateguwe hafi yumwanya mwiza wo gukwirakwiza ubushyuhe. Ntugashyire ibikoresho bishyushya cyane ku mfuruka no ku mpande zegeranye z'ikibaho cyacapwe, keretse niba hashyizweho icyuma gishyuha hafi yacyo.
Mugihe ushushanya imbaraga zirwanya imbaraga, hitamo igikoresho kinini gishoboka, kandi ukore umwanya uhagije wo gukwirakwiza ubushyuhe mugihe uhinduye imiterere yibibaho byacapwe.
Gusabwa gutandukanya ibice: