Lokacin zayyana da'irori na PCB masu sauri, matching impedance ɗaya ne daga cikin abubuwan ƙira.Ƙimar impedance tana da cikakkiyar dangantaka tare da hanyar wayoyi, kamar tafiya a kan saman Layer (microstrip) ko Layer na ciki (stripline / ritibi biyu), nisa daga ma'aunin tunani (layin wuta ko ƙasa), nisa wayoyi, kayan PCB. , da dai sauransu. Dukansu za su shafi halayyar impedance darajar da alama.

Wato, ana iya ƙayyade ƙimar impedance bayan wayoyi.Gabaɗaya, software na kwaikwayi ba za ta iya la'akari da wasu sharuɗɗan wayoyi tare da dakatarwar da ba ta ƙare ba saboda iyakancewar ƙirar da'irar ko algorithm na lissafi da aka yi amfani da shi.A wannan lokacin, kawai wasu masu ƙarewa (ƙarewa), kamar juriya na jeri, ana iya adana su akan zane mai ƙima.Rage tasirin katsewa a cikin abin da aka gano.Ainihin maganin matsalar shine a yi ƙoƙari don guje wa katsewar abubuwan da ke faruwa lokacin waya.