Nzira yekusiyanisa sei pakati peburi, blind via uye yakavigwa via muPCB?
Mukugadzira nekugadzira maPCB, tinowanzo shandisa maburi, mapofu/akavigwa kuburikidza nekushandisa mapurasitiki kuti tigutse zvinodiwa pakugadzira uye zvinodiwa pakushanda. Saka musiyano uripi pakati pawo?
1.Kuburikidza neburi
Buri rinopinda nepakati imhando iri nyore uye yakajairika yemaburi muPCB. Rinogadzirwa nekuboora buri muPCB (chikamu chepamusoro kusvika pasi) woizadza nechinhu chinofambisa magetsi (senge mhangura). Rinowanzo shandiswa kubatanidza macircuit pazvikamu zvakasiyana kuti ripe kubatana kwemagetsi uye rutsigiro rwemakanika.
Mutengo weburi rinopinda nepakati wakachipa, asi pakugadzira bhodhi redunhu reHDI rine huwandu hwakawanda, sezvo nzvimbo yebhodhi redunhu ichikosha zvikuru, dhizaini yeburi rinopinda nepakati inopambadza zvishoma.
2. Bofu kuburikidza
Blind via yakafanana neburi rinopinda, asi blind via inongopfuura nepakati pePCB. Inotungamira jira repamusoro mukati pasina kupinda muPCB. Inowanzo shandiswa kubatanidza macircuit pakati pepamusoro nemukati, yakakodzera PCB ine jira rakawanda ine nzvimbo shoma. Maitiro ekugadzira blind via akaoma. Kukundikana kutarisisa kudzika kwekuboorwa kunogona kukonzera matambudziko mu electroplating mumakomba. Nokudaro, jira rinopinda mudunhu rinofanira kubatanidzwa rinogona kutanga kuboorwa kana riri jira rinopinda mudunhu rakasiyana, uye rozobatanidzwa rese. Zvisinei, kushandisa nzira iyi kunoda nzvimbo chaiyo uye michina yekuronga. Nokudaro, blind via inodhura kupfuura gomba rinopinda mugomba.
3. Akavigwa kuburikidza
Ma-vias akavigwa akavanzwa mukati mechikamu chimwe nechimwe chePCB uye anobatanidza zvikamu zviviri kana kupfuura zvemukati zvePCB. Haaonekwe pamusoro nepazasi. Anowanzo kukodzera mabhodhi edunhu ane huwandu hwakanyanya hweHDI kuti awedzere nzvimbo inoshandiswa yemamwe ma-circuit layers. Pakugadzira ma-vias akavigwa, mabasa ekuboorera anogona kungoitwa chete pazvikamu zvedunhu rega rega kutanga. Chikamu chemukati chinotanga chabatanidzwa zvishoma uye chobva chaiswa electroplated, uye chobva chabatanidzwa zvese. Nekuti maitiro ekushanda anorema kupfuura ekutanga kuburikidza negomba uye blind via, mutengo wacho unodhura.
Mazano:
Mutengo: Kuburikidza neburi ＜Bofu kuburikidza ＜ Yakavigwa kuburikidza
Kushandiswa kwenzvimbo: kuburikidza neburi Kuoma kwekushanda: kuburikidza neburi Richpcba inopa vatengi masevhisi ePCB + SMT ane "mutengo wakanaka, mhando yepamusoro, uye kutumira nekukurumidza", sampuli yakakwana + kugadzirwa kwakawanda, uye inogadzirisa zvinodiwa nevatengi zvePCBA. Zvigadzirwa izvi zvinoshandiswa zvakanyanya muhungwaru hwekugadzira, zvishandiso, midziyo yekutaurirana, kuchengetedza simba remagetsi, zvigadzirwa zvemagetsi zvemotokari nedzimwe nzvimbo.
