Idan yakamata a cire jan ƙarfe a ciki PCB zane?

Some people say it should be removed for the following reasons: 1. EMI problems will be caused. 2, inganta ikon rushewa. 3. Dead copper is useless.

Wasu mutane sun ce ya kamata a kiyaye, dalilan na iya yiwuwa: 1. Wani lokaci babban fili ba ya da kyau. 2, increase the mechanical properties of the board, to avoid the phenomenon of uneven bending.

Na farko, ba ma son mu mutu da jan ƙarfe (tsibiri), saboda tsibirin a nan don samar da tasirin eriya, idan ƙarfin hasken da ke kewaye da layin ya yi yawa, zai haɓaka ƙarfin radiation a kusa; Kuma zai samar da tasirin karɓar eriya, zai gabatar da tsangwama na lantarki ga wayoyin da ke kewaye.

Na biyu, zamu iya share wasu ƙananan tsibiran. Idan muna son kiyaye murfin jan ƙarfe, tsibirin yakamata ya haɗa da GND ta cikin ramin ƙasa don ƙirƙirar garkuwa.

Third, high-frequency, wiring of distributed capacitance on the printed circuit board will work, when the length is more than 1/20 of the noise frequency corresponding wavelength, can produce the antenna effect, the noise will launch out through wiring, if there are bad grounding copper clad in the PCB, copper clad became the tool of transmission noise, therefore, in the high frequency circuit, do not think, Ƙasar a wani wuri da aka haɗa da ƙasa, wannan ita ce “ƙasa”, dole ne ta kasance ƙasa da tazarar λ/20, a cikin ramin wayoyi, da kuma bene na allon multilayer “kyakkyawan ƙasa”. Idan an kula da murfin tagulla yadda yakamata, murfin jan ƙarfe ba kawai yana ƙaruwa a halin yanzu ba, har ma yana taka rawa biyu wajen katsalandan na kariya.

Na huɗu, ta hanyar haƙa ramin ƙasa, kiyaye murfin tagulla na tsibirin, ba wai kawai zai iya taka rawa a cikin katsalandan ba, amma kuma yana iya hana gurɓatar PCB.