Kungabhekwa ukuthi kunezimbobo eziningi ezinkulu nezincane ebhodini lesifunda, futhi kungatholakala ukuthi kunezimbobo eziningi eziminyene, futhi imbobo ngayinye yenzelwe injongo yayo. Lezi zimbobo zingahlukaniswa zibe i-PTH (Plating Through Hole) kanye ne-NPTH (Non Plating Through Hole) embozwa ngembobo, futhi sithi “ngembobo” ngoba isuka kolunye uhlangothi lwebhodi iye kolunye, Eqinisweni, ngaphezu kwembobo ebhodini lesifunda, kunezinye izimbobo ezingekho ebhodini lesifunda.
Imigomo ye-PCB: ngembobo, imbobo eyimpumputhe, imbobo egqitshiwe.
1. Indlela yokuhlukanisa i-PTH ne-NPTH ngemigodi?
Kungahlulelwa uma kukhona izimpawu ezikhanyayo ze-electroplating odongeni lwembobo. Imbobo enamamaki e-electroplating yi-PTH, futhi imbobo engenawo amamaki e-electroplating yi-NPTH. Njengoba kukhonjisiwe esithombeni esingezansi:
2. IUInani eliphakeme kakhulu lama-NPTH
Kutholwe ukuthi indawo yokuvula ye-NPTH ivamise ukuba nkulu kune-PTH, ngoba i-NPTH isetshenziswa kakhulu njengesikulufu sokukhiya, futhi okunye kusetshenziselwa ukufaka okunye ukuxhumana ngaphandle kwesixhumi esilungisiwe. Ngaphezu kwalokho, ezinye zizosetshenziswa njengendawo yokuhlola eceleni kwepuleti.
3. Ukusetshenziswa kwe-PTH, Iyini i-Via?
Ngokuvamile, izimbobo ze-PTH ebhodini lesifunda zisetshenziswa ngezindlela ezimbili. Enye isetshenziselwa ukushisela izinyawo zezingxenye ze-DIP zendabuko. Ukuvuleka kwalezi zimbobo kufanele kube kukhulu kunobubanzi bezinyawo zokushisela zezingxenye, ukuze izingxenye zifakwe emigodini.
Enye i-PTH encane ngokuqhathaniswa, evame ukubizwa nge- (imbobo yokuqhuba), isetshenziselwa ukuxhuma nokuqhuba ibhodi lesifunda (PCB) phakathi kwezingqimba ezimbili noma ngaphezulu zomugqa we-foil yethusi, ngoba i-PCB yakhiwe ngezingqimba zethusi eziningi ezinqwabelene, ungqimba ngalunye lwe-foil. ithusi (ithusi) lizogandaywa ngongqimba lwe-insulation layer, okusho ukuthi, ungqimba lwethusi alukwazi ukuxhumana nomunye nomunye, Ukuxhumana nesiginali yayo kudlula, yingakho kubizwa ngokuthi "dlula emgodini" ngesiShayina. Via ngoba izimbobo azibonakali ngokuphelele ngaphandle. Ngoba inhloso ye-via ukwenza i-foil yethusi yezendlalelo ezihlukene, idinga i-electroplating ukuze iqhube, ngakho-ke i-via nayo iwuhlobo lwe-PTH.
