Umhlangano we-PCB (Printed Circuit Board) uyingxenye ebalulekile yokukhiqiza izinto zikagesi. Kubandakanya inqubo yokukhweza kanye nokunamathisela izingxenye ze-elekthronikhi ku-PCB. Kunezinhlobo ezimbili eziyinhloko zemihlangano ye-PCB, imihlangano ye-PCB eguquguqukayo kanye nemihlangano ye-PCB eqinile. Nakuba zombili zisebenzisa inhloso efanayo yokuxhuma izingxenye ze-elekthronikhi, zenziwa ngendlela ehlukile.Kule bhulogi, sizoxoxa ngokuthi umhlangano we-PCB oguquguqukayo uhluka kanjani ekuhlanganiseni okuqinile kwe-PCB enqubweni yokukhiqiza.
1. Ukuhlanganiswa kwe-FPC:
I-Flex PCB, eyaziwa nangokuthi i-PCB eguquguqukayo, iyibhodi lesekhethi elingagotshwa, ligoqwe noma lisontwe ukuze lilingane nokuma nokucushwa okuhlukahlukene.Inikeza izinzuzo ezimbalwa kuma-PCB aqinile, njengokunciphisa ukusetshenziswa kwesikhala nokuqina okuthuthukisiwe. Inqubo yokukhiqiza ye-flex PCB assembly ihlanganisa lezi zinyathelo ezilandelayo:
a. I-Flexible PCB Design: Isinyathelo sokuqala ekuhlanganiseni kwe-PCB eguquguqukayo ukuklama isakhiwo sesifunda esivumelana nezimo.Lokhu kuhlanganisa ukunquma usayizi, umumo kanye nokucushwa kwe-flex PCB. Kucatshangelwe ngokukhethekile ukuhlelwa kwemikhondo yethusi, ama-vias namaphedi ukuqinisekisa ukuguquguquka nokuthembeka.
b. Ukukhetha impahla: Ama-PCB aguquguqukayo enziwe ngezinto eziguquguqukayo njenge-polyimide (PI) noma i-polyester (PET).Ukukhethwa kwezinto kuncike ezidingweni zohlelo lokusebenza, okuhlanganisa ukumelana nezinga lokushisa, ukuguquguquka, kanye nezakhiwo zemishini.
c. Ukukhiqizwa kwesekethe: Ukwenziwa kwe-PCB evumelana nezimo kuhlanganisa izinqubo ezifana ne-photolithography, i-etching, kanye ne-electroplating.I-Photolithography isetshenziselwa ukudlulisa amaphethini wesekethe kuma-substrates aguquguqukayo. I-Etching isusa ithusi elingadingekile, ishiya i-circuitry oyifunayo. Ukucwenga kwenziwa ukuze kuthuthukiswe ukusebenza kahle nokuvikela amasekethe.
d. Ukubekwa kwengxenye: Ekuhlanganiseni kwe-PCB eguquguqukayo, izingxenye zibekwa ku-substrate eguquguqukayo kusetshenziswa ubuchwepheshe bokukhweza kwendawo (SMT) noma ubuchwepheshe be- through-hole.I-SMT ibandakanya ukukhweza izingxenye ze-elekthronikhi ngokuqondile phezu kwe-PCB eguquguqukayo, kuyilapho ubuchwepheshe be- through-hole buhilela ukufaka umkhondo emigodini ebhojwe ngaphambili.
e. I-Soldering: I-Soldering yinqubo yokuhlanganisa izingxenye ze-electronic ku-PCB eguquguqukayo.Ngokuvamile kwenziwa kusetshenziswa amasu e-reflow soldering noma ama-wave soldering amasu, kuye ngohlobo lwesakhi kanye nezidingo zokuhlanganisa.
2. Ukuhlanganiswa kwe-PCB eqinile:
Ama-PCB aqinile, njengoba negama liphakamisa, amabhodi esekethe angaguquki angakwazi ukugotshwa noma ukusonteka.Zivame ukusetshenziswa ezinhlelweni lapho ukuzinza kwesakhiwo kubalulekile. Inqubo yokukhiqiza yokuhlanganisa i-PCB eqinile ihlukile ekuhlanganiseni kwe-PCB eguquguqukayo ngezindlela eziningi:
a. Idizayini ye-PCB Eqinile: Imiklamo ye-PCB eqinile ivamise ukugxila ekwandiseni ukuminyana kwengxenye nokuthuthukisa ubuqotho besignali.Usayizi, inani lezendlalelo, nokucushwa kwe-PCB kunqunywa ngokuya ngezidingo zohlelo lokusebenza.
b. Ukukhethwa kwezinto: Ama-PCB aqinile enziwa kusetshenziswa ama-substrates aqinile njenge-fiberglass (FR4) noma i-epoxy.Lezi zinto zinamandla amahle kakhulu emishini nokuzinza kokushisa futhi zifaneleka ezinhlobonhlobo zezicelo.
c. Ukwakhiwa kwesekethe: Ukwakhiwa kwe-PCB eqinile ngokuvamile kuhilela izinyathelo ezifanayo nama-PCB aguquguqukayo, okuhlanganisa i-photolithography, i-etching, kanye ne-plating.Kodwa-ke, izinto ezisetshenziswayo kanye nezindlela zokwenziwa zingahluka ukuze zihambisane nokuqina kwebhodi.
d. Ukubekwa kwengxenye: Izingxenye zibekwe ku-PCB eqinile kusetshenziswa i-SMT noma ubuchwepheshe bomgodi, obufana nokuhlanganisa i-PCB eguquguqukayo.Ama-PCB aqinile, nokho, avumela ukucushwa okuyinkimbinkimbi kwezingxenye ngenxa yokwakhiwa kwazo okuqinile.
e. I-Soldering: Inqubo yokuhlanganisa ye-PCB eqinile iyafana naleyo yokuhlanganisa i-PCB eguquguqukayo.Kodwa-ke, inqubo ethile kanye nezinga lokushisa elisetshenzisiwe lingahluka kuye ngezinto zokwakha kanye nezingxenye ezithengiswayo.
Ekuphetheni:
Umhlangano we-PCB oguquguqukayo kanye nomhlangano we-PCB oqinile unezinqubo ezihlukene zokukhiqiza ngenxa yezimpawu ezihlukene zezinto kanye nokusetshenziswa kwazo.Ama-PCB avumelana nezimo anikeza ukuguquguquka nokuqina, kuyilapho ama-PCB aqinile ahlinzeka ngokuqina kwesakhiwo. Ukwazi umehluko phakathi kwalezi zinhlobo ezimbili zemihlangano ye-PCB kubalulekile ekukhetheni inketho efanele yohlelo oluthile lwe-elekthronikhi. Ngokucabangela izici ezifana ne-form factor, izidingo zemishini kanye nokuvumelana nezimo, abakhiqizi bangaqinisekisa ukusebenza okuphezulu nokuthembeka kwemihlangano ye-PCB.
Isikhathi sokuthumela: Sep-02-2023
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