Kwamitin kewaye na PCB yawa yana ƙaruwa da girma, ingancin ƙirar PCB akan ikon kutse yana da babban tasiri, don haka tsarin PCB yana cikin matsayi mai mahimmanci a cikin ƙira. Bukatun shimfidu na abubuwan musamman:

1, gajeriyar hanyar haɗi tsakanin abubuwan haɗin madaidaiciya, mafi kyau, don rage tsangwama na electromagnetic tsakanin juna; Abubuwan da ke cikin damuwa da sauƙi kada su kasance kusa da juna; Abubuwan shigarwa da fitarwa yakamata suyi nesa da su;

2, wasu abubuwan haɗin suna da babban bambanci mai yuwuwa, yakamata su ƙara tazara tsakanin su, rage raɗaɗin yanayin gama gari. Tsarin shimfidar abubuwa tare da babban ƙarfin lantarki yakamata ya ba da kulawa ta musamman ga ƙimar tsarin;

3, abubuwan zafi yakamata suyi nesa da abubuwan dumama;

4, capacitor yakamata ya kasance kusa da guntun wutar guntu;

5, shimfidar potentiometer, madaidaicin murfin inductor, madaidaicin capacitor, micro-switch da sauran abubuwan daidaitawa yakamata a sanya su cikin sauƙi don daidaita matsayin gwargwadon buƙatun;

6, yakamata ya ware ramin sakawa na allon bugawa da madaidaicin sashi wanda matsayin ya mamaye.

Bukatun shimfida abubuwan gama gari:

1. Sanya abubuwan da ke cikin kowane sashin da’irar aiki gwargwadon tsarin da’irar don sanya siginar kwararar siginar daidai gwargwado;

2. Takeaukar ginshiƙai na kowane da’irar aiki azaman cibiyar don aiwatar da shimfida a kewayenta. Yakamata a daidaita abubuwan da aka tsara daidai da daidaitacce akan PCB don ragewa da taƙaitaccen jagora da haɗi tsakanin abubuwan haɗin;

3. Don da’irori da ke aiki a mitoci masu yawa, ya kamata a yi la’akari da tsangwama tsakanin abubuwan. A cikin da’irori na gaba ɗaya, yakamata a shirya abubuwan da aka tsara a layi ɗaya gwargwadon iyawa don sauƙaƙe wayoyi;

4. The outplace line of PCB is overall not less than 80mil from the gefen PCB. Mafi kyawun siffar allon da’ira shine murabba’in murabba’i 3: 2 ko 4:30.