I-6 Layer FR4 ENIG Impedance Control PCB
Izinto Ezinquma Impedance Elawulwayo
I-impedance yesici ye-PCB ngokuvamile inqunywa inductance yayo kanye namandla, ukumelana nokuziphatha.Lezi zici ziyimisebenzi yosayizi obonakalayo wesekethe, ukujiya kwe-dielectric kanye nokuqina kwe-dielectric ye-PCB substrate material.Ngokuvamile, ukuvinjelwa komugqa we-PCB kusuka ku-25 kuye ku-125Ω.Isakhiwo se-PCB esinquma inani le-impedance siqukethe izinto ezilandelayo:
Ububanzi nobukhulu bemigqa yesignali yethusi ephezulu nangaphansi
Ububanzi bezintambo zethusi ezingaphezulu nezingaphansi.Uhlu lwenqubo yongqimba lwangaphakathi lomhlangano nesekethe luyi-0.5oz 3/3mil kuya ku-6oz 15/12mil umugqa wesiginali yethusi, futhi ibanga lomugqa wangaphandle liyahlukahluka kusuka ku-1/3oz 3/3mil kuya ku-6oz 15/12mil.
Ipuleti eliwumgogodla noma ukujiya kweshidi eliphekwe kancane kuzo zombili izinhlangothi zocingo lwethusi
Ishidi eliphulukisiwe kancane lisetshenziswa njengesendlalelo esibophayo ukuze kubanjwe wonke amabhodi awumongo ndawonye ku-PCB.Lapho uklama i-PCB yokulawula i-impedance, ubukhulu beshidi eliphulukisiwe ezinhlangothini zombili zebhodi eliwumgogodla kufanele lifane.
I-Dielectric constant ye-PCB eyinhloko kanye neshidi eliphulukisiwe kancane
Uma i-dielectric constant ye-core plate kanye neshidi le-semi-cured kuhlukile, i-impedance nayo izoshintsha.Ngakho-ke, i-dielectric constant of the two kufanele ifane.
Isibonisi Sezisetshenziswa
Automatic Plating Line
Umugqa we-PTH
I-LDI
