Nigute chip igurishwa ku kibaho cyumuzunguruko?

Chip nicyo twita IC, igizwe nisoko ya kristu hamwe nugupakira hanze, ntoya nka transistor, kandi mudasobwa yacu CPU nibyo twita IC.Mubisanzwe, yashyizwe kuri PCB ibinyujije mumapine (ni ukuvuga ikibaho cyumuzunguruko wavuze), igabanijwemo ibice bitandukanye, harimo plug na patch.Hariho kandi bitashyizwe muburyo butaziguye kuri PCB, nka mudasobwa yacu CPU.Kugirango byoroherezwe gusimburwa, byashyizwe kuri yo hakoreshejwe socket cyangwa pin.Igikara cyirabura, nko mumasaha ya elegitoronike, gifunze neza kuri PCB.Kurugero, abakunzi ba elegitoronike bamwe ntibafite PCB ibereye, birashoboka rero ko wubaka isuka iturutse kumurongo winsinga.

Chip igomba "gushyirwaho" ku kibaho cyumuzunguruko, cyangwa "kugurisha" kugirango bisobanuke neza.Chip igomba kugurishwa ku kibaho cyumuzunguruko, kandi ikibaho cyumuzunguruko gishyiraho amashanyarazi hagati ya chip na chip binyuze muri "trace".Ikibaho cyumuzunguruko nicyo gitwara ibice, ntabwo gikosora chip gusa ahubwo inemeza imiyoboro y'amashanyarazi kandi ikanemeza imikorere ya buri chip.

chip pin

Chip ifite amapine menshi, kandi chip nayo ishyiraho isano ihuza amashanyarazi nandi ma chip, ibice, hamwe nizunguruka binyuze mumapine.Imikorere myinshi chip ifite, ninshi ifite.Ukurikije imiterere itandukanye ya pinout, irashobora kugabanwa mubice bya LQFP, pake ya QFN, paketi ya SOP, BGA ikurikirana hamwe na DIP ikurikirana.Nkuko bigaragara hano hepfo.

Ubuyobozi bwa PCB

Imbaho ​​zisanzwe zisanzwe zifite amavuta yicyatsi, bita PCB.Usibye icyatsi, amabara akunze gukoreshwa ni ubururu, umukara, umutuku, nibindi. Hariho PC, ibimenyetso, na vias kuri PCB.Gutondekanya amakariso bihuye no gupakira chip, kandi chip hamwe na padi birashobora kugurishwa muburyo bwo kugurisha;mugihe ibimenyetso na vias bitanga isano ihuza amashanyarazi.Ubuyobozi bwa PCB bwerekanwe kumashusho hepfo.

Ikibaho cya PCB gishobora kugabanywamo ibice bibiri, imbaho ​​enye, imbaho ​​esheshatu, ndetse nibindi byinshi ukurikije umubare wabyo.Ikibaho gikunze gukoreshwa PCB ni ibikoresho bya FR-4, kandi ubunini busanzwe ni 0.4mm, 0,6mm, 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm, nibindi. ni yoroshye, bita ikibaho cyoroshye.Kurugero, insinga zoroshye nka terefone igendanwa na mudasobwa nibibaho byoroshye.

ibikoresho byo gusudira

Kugurisha chip, igikoresho cyo kugurisha kirakoreshwa.Niba ari kugurisha intoki, ugomba gukoresha ibyuma byo kugurisha amashanyarazi, insinga zigurisha, flux nibindi bikoresho.Gusudira intoki bikwiranye numubare muto wintangarugero, ariko ntibikwiriye gusudira umusaruro mwinshi, kubera imikorere mike, kudahuza neza, nibibazo bitandukanye nko kubura gusudira no gusudira kubeshya.Noneho urwego rwo gukanika rugenda rwiyongera, kandi SMT chip yibikoresho byo gusudira ni inzira ikuze yinganda.Iyi nzira izaba irimo imashini zoza, imashini zishira, amashyiga yerekana, gupima AOI nibindi bikoresho, kandi urwego rwo kwikora ruri hejuru cyane., Guhuzagurika nibyiza cyane, kandi igipimo cyamakosa ni gito cyane, cyemeza ko ibicuruzwa byinshi byoherejwe.SMT irashobora kuvugwa ko ari ibikorwa remezo byinganda za elegitoroniki.

Inzira y'ibanze ya SMT

SMT ni inzira isanzwe yinganda, ikubiyemo PCB hamwe no kugenzura no kugenzura ibikoresho byinjira, kugenzura imashini zipakurura, gukata paste / gusya kashe ya kashe, gushyira imashini ishyira, gushyiramo ifuru, kugenzura AOI, gukora isuku nibindi bikorwa.Nta makosa ashobora gukorwa muburyo ubwo aribwo bwose.Kugenzura ibikoresho byinjira byinjira cyane cyane byerekana neza ibikoresho.Imashini ishyira igomba gukenera gahunda kugirango hamenyekane icyerekezo nicyerekezo cya buri kintu.Ikarita yo kugurisha ikoreshwa kumapaki ya PCB binyuze mumashanyarazi.Kugurisha hejuru no kugarura ni inzira yo gushyushya no gushonga paste, kandi AOI nigikorwa cyo kugenzura.

Chip igomba kugurishwa ku kibaho cyumuzunguruko, kandi ikibaho cyumuzunguruko ntigishobora kugira uruhare gusa mugukosora chip ariko nanone kigahuza amashanyarazi hagati ya chip.


Igihe cyo kohereza: Gicurasi-09-2022