Ngaphantsi kwesiqhelo PCB iimeko uyilo, ezi zinto zilandelayo ikakhulu kuchaphazela impedance yi PCB lokuvelisa:

1. Ubunzima be-dielectric layer bulingana nexabiso le-impedance.

2. Ukuqhubekeka kwe-dielectric ngokungafaniyo kwixabiso le-impedance.

3. Ukutyeba kwefoyile yobhedu kuthelekiswa ngokulinganayo kwixabiso le-impedance.

4. Ububanzi bomgca ngokungqinelanayo bulingana nexabiso lempazamo

5. Ubunzima be-inki kunye nexabiso le-impedance ngokulinganayo.

Ke kuya kufuneka siqwalasele la manqaku angasentla xa silawula i-impedance.