6 Layer FR4 ENIG Impedance Control PCB
Me yasa PCB Don Yin Impedance?
PCB impedance yana nufin juriya da ma'auni na reactance, wanda ke aiki azaman shamaki ga canjin halin yanzu.Yin sarrafa impedance yana da mahimmanci a cikin PCB.Ga dalilin:
1, PCB don la'akari da shigar da filogi na kayan aikin lantarki, SMT faci kuma yana buƙatar yin la'akari da ƙaddamarwa da aikin watsa siginar, don haka zai buƙaci ƙananan ƙarancin, mafi kyau.
2, PCB a cikin samar da tsari ta hanyar jan ƙarfe jijiya, electroplating tin (ko electroless plating, zafi fesa tin), connector soldering da sauran matakai, da kayan amfani dole ne low resistivity, don tabbatar da cewa overall impedance darajar da kewaye hukumar saduwa. buƙatun ingancin samfur, don aiki na yau da kullun.
3, PCB tin plating shi ne mafi kusantar matsaloli a cikin dukan PCB samar, shi ne mabuɗin mahada shafi impedance;Babban lahaninsa shine sauƙin iskar shaka ko rashin ƙarfi, rashin ƙarfi mara ƙarfi, don PCB yana da wahalar walƙiya, rashin ƙarfi ya yi yawa, yana haifar da ƙarancin gudanarwa ko duk aikin PCB bai tsaya ba.
4, mai gudanarwa a cikin PCB zai sami nau'ikan siginar siginar, layin kanta saboda etching, kauri na lamination, faɗin waya da sauran dalilai, zai haifar da canje-canjen darajar impedance, yin siginar siginar, haifar da aikin kewayawa. raguwar hukumar, don haka ya zama dole don sarrafa ƙimar impedance a cikin wani kewayon.
Nunin Kayan aiki
PCB Layin Plating Na atomatik
Layin PCB PTH
PCB LDI
PCB CCD Exposure Machine
Nunin Masana'antu
PCB Manufacturing Tushen
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