other

Nigute ushobora kumenya pcb layer?

  • 2022-05-25 12:00:11
Nigute ikibaho cyumuzunguruko cyuruganda rwa PCB cyakozwe?Ibikoresho bito byumuzunguruko bishobora kugaragara hejuru ni umuringa wumuringa.Mu ntangiriro, ifiriti y'umuringa yari itwikiriye PCB yose, ariko igice cyayo cyarashizwemo mugihe cyo gukora, naho igice gisigaye gihinduka umuzenguruko muto umeze nka mesh..

 

Iyi mirongo yitwa insinga cyangwa ibimenyetso kandi ikoreshwa mugutanga amashanyarazi kubice kuri PCB.Ubusanzwe ibara rya Ubuyobozi bwa PCB ni icyatsi cyangwa igikara, niryo bara ryibicuruzwa.Ni urwego rukingira rukingira urinda insinga z'umuringa kandi rukanarinda ibice kugurishwa ahantu hatari.



Ikibaho cyumuzunguruko ubu birakoreshwa kubibaho na karita yubushushanyo, byongera cyane ahantu hashobora kuba insinga.Ikibaho kinini koresha byinshi ikibaho kimwe cyangwa impande ebyiri , hanyuma ushireho insuline hagati ya buri kibaho hanyuma ukande hamwe.Umubare wibice byubuyobozi bwa PCB bivuze ko hariho ibyiciro byinshi byigenga byiringirwa, mubisanzwe umubare wabyo ni ndetse, kandi ushizemo ibice bibiri byo hanze.Ubusanzwe PCB ikibaho ni 4 kugeza 8 byimiterere.Umubare wibice byibibaho byinshi bya PCB urashobora kubibona ureba igice cyubuyobozi bwa PCB.Ariko mubyukuri, ntamuntu ufite ijisho ryiza nkiryo.Noneho, dore ubundi buryo bwo kukwigisha.

 

Ihuriro ryumuzunguruko wibice byinshi byanyuze mu gushyingurwa hifashishijwe impumyi hakoreshejwe ikoranabuhanga.Ibibaho byinshi hamwe namakarita yerekana ikoresha imbaho ​​4 za PCB, kandi bamwe bakoresha 6-, 8-cyangwa, cyangwa 10-PCB.Niba ushaka kureba umubare ungana muri PCB, urashobora kubimenya witegereje umwobo uyobora, kubera ko imbaho ​​z-ibice 4 zikoreshwa ku kibaho gikuru hamwe n'ikarita yo kwerekana ni urwego rwa mbere n'urwa kane rw'insinga, na izindi nzego zikoreshwa mubindi bikorwa (insinga y'ubutaka).n'imbaraga).

 

Kubwibyo, nkibibaho byombi, umwobo uyobora uzinjira mu kibaho cya PCB.Niba hari vias zigaragara kuruhande rwimbere rwa PCB ariko ntizishobora kuboneka kuruhande, noneho igomba kuba ikibaho cya 6/8.Niba umwobo umwe uyobora ushobora kuboneka kumpande zombi zubuyobozi bwa PCB, mubisanzwe ni ikibaho 4.



Ibikorwa byo gukora PCB bitangirana na PCB "substrate" ikozwe muri Glass Epoxy cyangwa bisa.Intambwe yambere yumusaruro nugushushanya insinga hagati yibice.Uburyo ni "gucapa" inzitizi zumuzingi zuburyo bwateganijwe bwa PCB kumuzunguruko wicyuma kiyobora ibyuma hakoreshejwe uburyo bwo kwimura.



Amayeri nugukwirakwiza urwego ruto rwumuringa hejuru yumuringa no gukuraho ibirenze.Niba umusaruro ufite impande zombi, noneho impande zombi za substrate ya PCB zizaba zipfundikishijwe umuringa.Gukora ikibaho cyibice byinshi, imbaho ​​ebyiri zimpande zombi zirashobora "gukanda" hamwe hamwe na adheshe idasanzwe.

 

Ibikurikira, gucukura no gukwirakwiza amashanyarazi bisabwa kugirango uhuze ibice birashobora gukorwa ku kibaho cya PCB.Nyuma yo gucukura hakoreshejwe ibikoresho bya mashini ukurikije ibisabwa byo gucukura, imbere yurukuta rwumwobo hagomba gushyirwaho plaque (Plated-Through-Hole technology, PTH).Nyuma yo kuvura ibyuma bikozwe imbere murukuta rwumwobo, ibice byimbere byumuzunguruko birashobora guhuzwa.

 

Mbere yo gutangira amashanyarazi, imyanda iri mu mwobo igomba gusukurwa.Ni ukubera ko resin epoxy izahinduka muburyo bwimiti iyo ishyushye, kandi izapfukirana imbere PCB imbere, bityo igomba kubanza gukurwaho.Byombi ibikorwa byogusukura no gufata amasahani bikorwa mubikorwa bya shimi.Ibikurikira, birakenewe gutwikira uwagurishije kurwanya irangi (ugurisha irwanya wino) kumurongo winyuma kugirango insinga idakora ku gice cyashizweho.

 

Hanyuma, ibice bitandukanye byerekanwa-byanditse ku kibaho cyumuzunguruko kugirango byerekane umwanya wa buri gice.Ntishobora gupfundika intoki zose cyangwa zahabu, bitabaye ibyo irashobora kugabanya kugurishwa cyangwa guhagarara kwubu.Mubyongeyeho, niba hari ibyuma bihuza, "intoki za zahabu" zisanzwe zometseho zahabu muriki gihe kugirango harebwe umurongo w’amashanyarazi wo mu rwego rwo hejuru iyo winjijwe ahantu hagutse.

 

Hanyuma, hariho ikizamini.Gerageza PCB kubugufi cyangwa gufungura imirongo, haba muburyo bwa elegitoronike.Uburyo bwiza bukoresha scanne kugirango ubone inenge muri buri cyiciro, kandi ikizamini cya elegitoroniki gikoresha Flying-Probe kugirango ugenzure amasano yose.Ikizamini cya elegitoronike kirasobanutse neza mugushakisha ikabutura cyangwa gufungura, ariko ibizamini bya optique birashobora kubona byoroshye ibibazo nibitandukaniro bitari byiza hagati yabatwara.



Nyuma yumuzunguruko wumuzunguruko urangiye, ikibaho cyababyeyi cyuzuye gifite ibikoresho bitandukanye byubunini butandukanye kuri substrate ya PCB ukurikije ibikenewe - banza ukoreshe imashini itanga imashini ya SMT kugirango "ugurishe IC chip nibice bya patch", hanyuma ubigire intoki guhuza.Shira mubikorwa bimwe bidashobora gukorwa na mashini, hanyuma ukosore neza ibyo bikoresho byacometse kuri PCB ukoresheje uburyo bwo kugurisha umurongo / kugurisha, bityo ikibaho kibaho.

Uburenganzira © 2023 ABIS CIRCUITS CO., LTD.Uburenganzira bwose burabitswe. Imbaraga by

Umuyoboro wa IPv6 ushyigikiwe

hejuru

Tanga Ubutumwa

Tanga Ubutumwa

    Niba ushimishijwe nibicuruzwa byacu ukaba ushaka kumenya amakuru arambuye, nyamuneka usige ubutumwa hano, tuzagusubiza vuba bishoboka.

  • #
  • #
  • #
  • #
    Ongera ishusho