FR4 vs. Flexible PCB: Ukwembula Umehluko Obalulekile

Kulesi sihloko, sizohlola umehluko phakathi kwe-FR4 nama-PCB avumelana nezimo, sicacise ukusetshenziswa kwawo kanye nezinzuzo.

Uma kukhulunywa ngamabhodi esekethe aphrintiwe (ama-PCB), kunezinketho ezahlukahlukene, ngayinye enezici zayo ezihlukile kanye nezicelo. Izinhlobo ezimbili ezivame ukusetshenziswa yi-FR4 kanye ne-PCB eguquguqukayo. Ukuqonda umehluko wabo kubalulekile ekwenzeni izinqumo ezinolwazi lapho uklama futhi ukhiqiza izinto zikagesi.

Okokuqala, ake sixoxe nge-FR4, emele i-Flame Retardant 4. I-FR4 iyinto esetshenziswa kabanzi ekukhiqizeni ama-PCB aqinile.Kuyi-epoxy resin laminate eqiniswe ngendwangu ye-fiberglass ukuze inikeze amandla okusebenza ebhodini lesifunda. Inhlanganisela ewumphumela iyi-PCB eqinile, ehlala isikhathi eside futhi ethengekayo elungele uhla olubanzi lwezinhlelo zokusebenza.

Enye yezinzuzo eziyinhloko ze-FR4 PCB yi-conductivity yayo ephezulu yokushisa.Lesi sakhiwo sibaluleke kakhulu kumasekhethi e-elekthronikhi lapho ukuchithwa kokushisa okusebenzayo kubalulekile. Impahla ye-FR4 idlulisela ngempumelelo ukushisa kude nezingxenye, ivimbela ukushisa ngokweqile nokuqinisekisa ukusebenza kahle kwezisetshenziswa.

Ukwengeza, ama-FR4 PCB anikezela ngezakhiwo ezinhle kakhulu zokufakwa kukagesi.I-Fiberglass reinforcement ihlinzeka ngokuhlukanisa phakathi kwezingqimba ze-conductive, ukuvimbela noma yikuphi ukuphazamiseka kagesi okungafuneki noma izifunda ezimfushane. Lesi sici sibalulekile, ikakhulukazi kumasekhethi ayinkimbinkimbi anezendlalelo eziningi nezingxenye.

Ngakolunye uhlangothi, ama-PCB aguquguqukayo, aziwa nangokuthi amabhodi esekethe aphrintiwe avumelana nezimo noma izinto zikagesi eziguquguqukayo, aklanyelwe ukuba aguquguquke kakhulu futhi agobe.I-substrate esetshenziswa ku-PCB eguquguqukayo ngokuvamile ifilimu ye-polyimide, enokuguquguquka okuhle kakhulu kanye nokumelana nokushisa okuphezulu. Uma kuqhathaniswa nama-FR4 PCB, ama-PCB aguquguqukayo angagotshwa, asonteke noma agoqwe, awenze alungele izinhlelo zokusebenza ezidinga ubujamo obuyinkimbinkimbi noma imiklamo ehlangene.

Ama-PCB aguqukayo anikeza izinzuzo ezimbalwa kuma-PCB aqinile. Okokuqala, ukuguquguquka kwazo kuvumela ukuhlanganiswa okulula kumadivayisi anendawo elinganiselwe.Ukubunjwa kwabo kungashintshwa ukuze kube nezakhiwo ezingajwayelekile, okuvumela inkululeko enkulu yokuklama. Lokhu kwenza ama-PCB aguquguqukayo alungele izinhlelo zokusebenza ezinjengama-smartphones, ubuchwepheshe obugqokekayo, izisetshenziswa zezokwelapha kanye nogesi wezimoto.

Ngaphezu kwalokho, amabhodi wesifunda aphrintiwe aguquguqukayo anenzuzo yokunciphisa ukuhlangana nokuxhumanisa yinkimbinkimbi.Ama-PCB endabuko aqinile ngokuvamile adinga izixhumi ezengeziwe namakhebuli ukuze axhume izingxenye ezihlukahlukene. Ama-PCB aguquguqukayo, ngakolunye uhlangothi, avumela ukuxhumana okudingekayo ukuthi kuhlanganiswe ngokuqondile ebhodini lesifunda, kuqedwe isidingo sezingxenye ezengeziwe futhi kuncishiswe izindleko zomhlangano zizonke.

Enye inzuzo enkulu yama-PCB aguquguqukayo ukuthembeka kwawo. Ukungabikho kwezixhumi nezintambo kuqeda amaphuzu angaba khona okuhluleka futhi kwandisa ukuqina okuphelele kwesifunda.Ngaphezu kwalokho, ama-PCB aguquguqukayo anokumelana okuhle kakhulu nokudlidliza, ukushaqeka nokucindezeleka kwemishini, okuwenza afanelekele izinhlelo zokusebenza ezinokunyakaza okuvamile noma izindawo ezinokhahlo.

Ngaphandle kokuhlukana kwawo, ama-FR4 nama-PCB aguquguqukayo anokufana okuthile. Kokubili kungenziwa kusetshenziswa izinqubo ezifanayo zokukhiqiza, okuhlanganisa ukucwiliswa, ukubhola nokushisela.Ukwengeza, zombili izinhlobo zama-PCB zingenziwa ngendlela oyifisayo ukuze zihlangabezane nezidingo ezithile zokuklama, okuhlanganisa nenani lezendlalelo, usayizi, nokubekwa kwengxenye.

Kafushane, umehluko omkhulu phakathi kwe-FR4 nama-PCB avumelana nezimo ukuqina kwawo kanye nokuguquguquka.I-FR4 PCB iqinile kakhulu futhi inezici ezinhle kakhulu ezishisayo nezikagesi, okuyenza ifanelekele uhla olubanzi lwezinhlelo zokusebenza. Ama-PCB aguquguqukayo, ngakolunye uhlangothi, anikeza ukuguquguquka okungenakuqhathaniswa, okuvumela imiklamo eyinkimbinkimbi nokuhlanganiswa kumadivayisi avinjelwe isikhala.

Ekugcineni, ukukhetha phakathi kwe-FR4 ne-PCB evumelana nezimo kuncike ezidingweni ezithile zephrojekthi.Izinto ezinjengokusetshenziswa okuhlosiwe, izithiyo zesikhala kanye nezidingo zokuvumelana nezimo zonke kufanele zicatshangelwe ngokucophelela. Ngokuqonda umehluko nezinzuzo zohlobo ngalunye, abaklami nabakhiqizi bangenza izinqumo ezinolwazi ukuze bathuthukise ukusebenza nokuthembeka kwemishini yabo kagesi.