Kuyaziwa ukuthi amabhodi wesifunda aphrintiwe (Ama-PCB) ayingxenye esemqoka cishe yayo yonke imishini ye-elekthronikhi neye-elektrronikhi. Izinhlobo eziningana zama-PCB ziyatholakala ekucushweni nasezingxenyeni ezahlukahlukene, kuya ngezidingo zohlelo lokusebenza. I-PCB ingaba nayo noma ingabi nayo ingqikithi yensimbi. Ama-PCB amaningi wensimbi enziwa nge-aluminium, kuyilapho ama-PCB ajwayelekile enziwa ngeziqephu ezingezona zensimbi ezinjenge-ceramic, plastic, noma i-fiberglass. Ngenxa yendlela ezakhiwe ngayo, kukhona umehluko phakathi kwamapuleti e-aluminium nama-PCB ajwayelekile. Yikuphi okungcono? Yikuphi kulezi zinhlobo ezimbili ze-PCB ezifanele izidingo zakho zohlelo lokusebenza? Masithole into efanayo lapha.

Ukuqhathanisa nolwazi: I-Aluminium uma iqhathaniswa nama-PCB ajwayelekile

Ukuqhathanisa i-aluminium nama-PCB ajwayelekile, kubalulekile ukuthi ubheke izidingo zakho zohlelo lokusebenza kuqala. Ngaphezu kokuklanywa, ukuguquguquka, isabelomali, nokunye ukucatshangelwa, kubaluleke ngokufanayo. Ngakho-ke, nalu olunye ulwazi kuma-PCB ajwayelekile ne-aluminium ukukusiza ukunquma i-PCB oyidingayo.

Imininingwane engaphezulu ngama-PCB ajwayelekile

Njengoba igama lisho, ama-PCB ajwayelekile enziwa ekucushweni okujwayelekile nokusetshenziswa kakhulu. La ma-PCB avamise ukwenziwa ngezingxenye ze-FR4 futhi anokuqina okujwayelekile okungaba yi-1.5mm. Zibiza kakhulu futhi zinokuqina okulingene. Njengoba izinto ezisezingeni eliphansi zama-PCB ajwayelekile zingabaqhubi abampofu, zine-lamination yethusi, ifilimu evimba i-solder, nokuphrinta kwesikrini ukuze kuzenze ziqhube kahle. Lokhu kungaba okukodwa, okuphindwe kabili, noma okuningana. Uhlangothi olulodwa lwezinto eziyisisekelo ezifana nezibali. Amadivayisi agqinsiwe asetshenziswa kumadivayisi axakeke kancane, njengamakhompyutha. Ngakho-ke, kuya ngenani lezinto zokwakha nezendlalelo ezisetshenzisiwe, zisetshenziswa kumadivayisi amaningi alula futhi anzima. Iningi lamapuleti e-FR4 awanamandla okumelana nokushisa noma ukushisa, ngakho-ke ukugwenywa ngqo emazingeni okushisa aphezulu kufanele kugwenywe. Ngenxa yalokhu, banamasinki okushisa noma izimbobo ezigcwaliswe ngethusi ezivimbela ukushisa kungangeni esifundeni. Ungakugwema ukusebenzisa ama-PCB ajwayelekile bese ukhetha i-aluminium PCBS lapho amazinga okushisa aphezulu engadingeki ukuthi asebenze emazingeni okushisa adlulele. Kodwa-ke, uma izidingo zohlelo lwakho lokusebenza zizinzile, ubekwe kahle ukukhetha ama-PCB ajwayelekile we-fiberglass asebenza kahle futhi ayonga.

Kuneminye imininingwane nge-aluminium PCB

I-Aluminium PCB ifana nanoma iyiphi enye i-PCB lapho i-aluminium isetshenziswa khona njenge-substrate. Zisetshenziswa kabanzi kuzinhlelo zokusebenza eziningi ezisebenza ezindaweni ezinzima kanye namazinga okushisa adlulele. Kepha azisetshenziswanga kumiklamo eyinkimbinkimbi edinga izinto eziningi kakhulu ukuthi zifakwe. I-Aluminium ingumqhubi omuhle wokushisa. Kodwa-ke, la ma-PCB asenazo izingqimba zokuphrinta kwesikrini, zethusi nezokuvikela. Kwesinye isikhathi i-aluminium ingasetshenziswa njenge-substrate ngokuhlangana namanye ama-substrate angasebenzi, afana nezintambo zengilazi. I-Aluminium PCB iningi elingashadile noma emaceleni amabili. Avamile ukuthi abe nolwelwesi oluningi. Ngakho-ke, noma ngabe kungabaqhubi bokushisa, ukubeka ama-PCB e-aluminium kuletha izinselelo zawo. Zisetshenziswa kabanzi ezinhlelweni zokukhanyisa ze-LED zangaphakathi nangaphandle. Zimangele futhi zisiza ukunciphisa umthelela wezemvelo.