Ibikoresho byo mu bwoko bwa "blind" n'ibyo mu bwoko bwa "hidden vias" ni iki?
Ibikoresho by'ubutabire: Iyo uruhande rumwe gusa rw'ibikoresho ruri mu gice cyo hanze cya PCB, byitwa ibikoresho by'ubutabire.
Inzira zishyinguye: Iyo impande zombi z'inzira zishyinguye mu gice cy'imbere cya PCB, zitwa inzira zishyinguye.
Ni gute inzira zo mu bwoko bwa "vias" zidafite impumyi n'izishyinguwe zikorwa?
Uburyo butatu bukurikira bushobora gukora inzira zihishe kandi zigapfukiranwa:
Gucukura hakoreshejwe ikoranabuhanga bifite uburebure buhamye
Gucukura no gucukura mu buryo bukurikiranye
Uburyo ubwo aribwo bwose bwo gucukura no gucukura
Ubutabona binyuze mu nzira yo gukora ibintu ni iki?
Ubwa mbere, turavuga ku bijyanye no gucukura hakoreshejwe laser drill blind binyuze mu myobo. Uburyo bwo gukora PCB blind binyuze mu gukora bukurikira:
1) banza urangize ibice byose by'imbere;
2) gushyiramo ibice bibiri bya prepreg n'icyuma cy'umuringa ku bice by'imbere bya PCB byarangiye;
3) gucukura ubujyakuzimu bugenzurwa hakoreshejwe uburyo bwa laser.
Nyamuneka menya ko gukoresha neza ikoranabuhanga ari ingenzi cyane ku bantu batabona binyuze muri pad.
Ku bijyanye no gucukura imashini binyuze mu mwobo, dufata PCB zifite ibyiciro bine hamwe n’ibice bidafite ishingiro mu cyiciro cya 1 kugeza ku cya 2 urugero, inzira ikurikira:
1) gukora urwego rwa 1 na 2 nk'igikoresho gisanzwe cya PCB gifite urwego rwa 2, bityo hazabaho imyitozo ku urwego rwa 1 kugeza kuri 2;
2) gushyira hamwe imbaho ebyiri z'ingenzi kugira ngo dufate PCB y'ibice bine, hanyuma dutobore irangi mu mwobo;
3) iyo PCB irangiye, ubona PTH kuva ku byiciro bya 1 kugeza kuri 4 n'ibice bya blind kuva ku byiciro bya 1 kugeza kuri 2.
Ni izihe nyungu zo gukoresha ibyuma bidafite aho bibohera n'ibipfundikiye?
Ibyiza byo gukoresha impumyi n'ibipfukamunwa byavuzwe hano hasi:
Kugabanya ingano n'uburemere bwa PCB
Kugabanya umubare w'ibice by'ibyiciro
Kugabanya ikiguzi cyo gukora ubwoko butandukanye bwa PCBs kuva aho bihuriweho n'imirimo myinshi
Kunoza imikorere y'amashanyarazi
Kongera imiterere y'ibicuruzwa by'ikoranabuhanga
Koroshya kandi vuba imikorere y'igishushanyo mbonera
Ni izihe mbogamizi zo gukoresha inzira zidafite aho zibohera n'izihishe?
Gushyira mu gaciro gake uburebure bw'ibice by'imashini bidafite aho bibohera n'ibishyinguye bituma hakenerwa cyane ikorwa rya PCB.
Hakenewe injeniyeri z'inararibonye cyane kugira ngo bakore imashini zikoresha PCB zidafite aho zibogamiye kandi zihishe.
Biragoye cyane guteranya PCB zidafite aho zibohera kandi zipfutse kuko zihora zifite udupapuro duto, nka BGA pads.
Igipimo cy’ubutabire gisanzwe kijyanye n’ubutabire ni iki?
Mu kibaho cya vias blind drill laser, igipimo gisanzwe cya vias blind via ni 1:1.
Ni iki gishyingurwa binyuze?
Inzira zishyinguye muri PCB zinyura mu myobo iri hagati y’ibyiciro by’imbere. Dufata ikirahure cy’ibyiciro 6/gishyinguye binyuze mu kibaho cy’amashanyarazi urugero: ikirahure cy’ibyiciro bidafite aho bihuriye binyuze mu myobo iri hagati y’ibyiciro 2-3, 2-4, 2-5, 3-4, 3-5 na 4-5.
Yashyinguwe binyuze mu buryo bunyura ...
Uburyo bwo gupima ibyuma bikoresha ikoranabuhanga rihambaye (Blind via) n'uburyo bwo gupima ibyuma bikoresha ikoranabuhanga rigezweho (bulge via) ni ubwoko busanzwe bwa HDI PCB, buhora bubaho mu ikoranabuhanga rihanitse ryacapwe mu buryo bw'ikoranabuhanga rihanitse icyarimwe. Ariko ni ubwoko butandukanye cyane bwa ibyuma bikoresha ikoranabuhanga.