Ungahlukanisa kanjani phakathi komgodi odlulayo, i-blind via kanye ne-bread via ku-PCB?
Enqubweni yokuklama nokukhiqiza i-PCB, sivame ukusebenzisa imbobo, i-blind/efihliwe ukuze sihlangabezane nezidingo zomklamo kanye nezidingo zokusebenza. Ngakho-ke uyini umehluko phakathi kwazo?
1. Umgodi odlulayo
Imbobo edlulayo uhlobo lwembobo olulula noluvamile ku-PCB. Idalwa ngokubhoboza imbobo ku-PCB (ungqimba oluphezulu kuya phansi) bese uyigcwalisa ngezinto eziqhubayo (njengethusi). Ngokuvamile isetshenziselwa ukuxhuma amasekethe ezingqimbeni ezahlukene ukuze kuhlinzekwe uxhumano lukagesi kanye nokusekelwa kwemishini.
Izindleko zembobo edlulayo zishibhile, kodwa ngomklamo webhodi lesekethe le-HDI elinobukhulu obuphezulu, njengoba isikhala sebhodi lesekethe siyigugu kakhulu, umklamo wembobo edlulayo uyachitha imali.
2. Impumputhe ngokusebenzisa
I-Blind via ifana nembobo edlulayo, kodwa i-blind via idlula kancane kwi-PCB. Iholela ungqimba oluphezulu ngaphakathi ngaphandle kokungena kwi-PCB. Ngokuvamile isetshenziselwa ukuxhuma amasekethe phakathi kwezingqimba ezingaphezulu nezingaphakathi, ifaneleka kakhulu kwi-PCB enezingqimba eziningi enesikhala esincane. Inqubo yokukhiqiza i-blind via iyinkimbinkimbi kakhulu. Ukwehluleka ukunaka ukujula kokubhoboza kungabangela kalula ubunzima ekufakeni i-electroplating emigodini. Ngakho-ke, izingqimba zesekethe ezidinga ukuxhunywa zingabhobozwa kuqala uma ziyizingqimba zesekethe ezihlukene, bese zonke ziboshelwe. Kodwa-ke, ukusebenzisa le ndlela kudinga amadivayisi okubeka nokulungisa kahle. Ngakho-ke, i-blind via ibiza kakhulu kunembobo edlulayo.
3. Wangcwatshwa nge
Ama-vias angcwatshwe afihlwe ngaphakathi kwengqimba ngayinye ye-PCB futhi axhumanisa izendlalelo ezimbili noma ngaphezulu zangaphakathi ze-PCB. Azibonakali ezingqimbeni ezingaphezulu nangaphansi. Ngokuvamile afaneleka kumabhodi wesekethe we-HDI aqinile ukuze kwandiswe isikhala esisebenzisekayo sezinye izendlalelo zesekethe. Ekukhiqizweni kwama-vias angcwatshwe, imisebenzi yokubhoboza ingenziwa kuphela ezingqimbeni zesekethe ngazinye kuqala. Ingqimba yangaphakathi iqale iboshwe kancane bese ibekwa ngogesi, bese iboshwa yonke. Ngenxa yokuthi inqubo yokusebenza inzima kakhulu kune-yokuqala edlula emgodini kanye ne-blind via, intengo ibiza kakhulu.
Amathiphu:
Intengo: Ngembobo ＜Impumputhe via＜Ingcwatshwe via
Ukusetshenziswa kwesikhala: ngokusebenzisa imbobo Ubunzima bokusebenza: ngokusebenzisa imbobo I-Richpcba inikeza amakhasimende izinsizakalo ze-PCB + SMT ezinendawo eyodwa "ngentengo enhle kakhulu, ikhwalithi ephezulu, kanye nokulethwa okusheshayo", ukusampula okuphelele + ukukhiqizwa ngobuningi, futhi ixazulula izidingo zokwenza ngokwezifiso ze-PCBA ezinendawo eyodwa zamakhasimende. Imikhiqizo isetshenziswa kabanzi ekuhlakanipheni kokwenziwa, ukwenziwa kwezinsimbi, imishini yokuxhumana, isitoreji samandla se-photovoltaic, ama-elekthronikhi ezimoto kanye neminye imikhakha.
