Ma PCB muzinthu zazing'ono ndi gawo lofunikira pazida zamakono zamakono. Makulidwe amkuwa ndi chinthu chofunikira kwambiri pakupanga kwa PCB. Makulidwe olondola amkuwa amatha kuonetsetsa kuti bwalo ladera likuyenda bwino komanso magwiridwe antchito, komanso zimakhudzanso kudalirika komanso kukhazikika kwazinthu zamagetsi.
Nthawi zambiri, makulidwe athu amkuwa wamba ndi 17.5um (0.5oz), 35um (1oz), 70um (2oz)
makulidwe amkuwa amatsimikizira madutsidwe magetsi a bolodi dera. Copper ndi yabwino kwambiri conductive zakuthupi, ndipo makulidwe ake amakhudza mwachindunji conductive zotsatira za bolodi dera. Ngati mkuwa wosanjikiza ndi woonda kwambiri, katundu conductive akhoza kuchepa, kuchititsa chizindikiro kufala attenuation kapena kusakhazikika panopa. Ngati mkuwa wosanjikiza ndi wandiweyani kwambiri, ngakhale kuti conductivity idzakhala yabwino kwambiri, idzawonjezera mtengo ndi kulemera kwa bolodi la dera. Ngati mkuwa ndi wandiweyani kwambiri, ukhoza kuyambitsa kuyenda kwakukulu kwa guluu, ndipo ngati dielectric wosanjikiza ndi woonda kwambiri, vuto la kukonza dera lidzawonjezeka. Chifukwa chake, makulidwe amkuwa a 2oz nthawi zambiri samalimbikitsidwa. Popanga PCB, makulidwe oyenera amkuwa amayenera kusankhidwa malinga ndi zofunikira za kapangidwe kake ndikugwiritsa ntchito gululo kuti akwaniritse bwino kwambiri.
Kachiwiri, makulidwe amkuwa amakhalanso ndi gawo lofunikira pakuchotsa kutentha kwa board board. Pamene zipangizo zamakono zamakono zimakhala zamphamvu kwambiri, kutentha kwakukulu kumapangidwa panthawi yogwira ntchito. Kuchita bwino kwa kutentha kwa kutentha kumatha kuonetsetsa kuti kutentha kwa zipangizo zamagetsi kumayendetsedwa mkati mwa malo otetezeka panthawi yogwira ntchito. Chosanjikiza chamkuwa chimagwira ntchito ngati gawo lopangira matenthedwe a bolodi lozungulira, ndipo makulidwe ake amatsimikizira kutentha kwapang'onopang'ono. Ngati mkuwa wosanjikiza ndi woonda kwambiri, kutentha sikungathe kuchitidwa ndi kutayika bwino, kuonjezera chiopsezo cha zigawo zowonongeka.
Chifukwa chake, makulidwe amkuwa a PCB sangakhale woonda kwambiri. Panthawi ya mapangidwe a PCB, tithanso kuyala mkuwa pamalo opanda kanthu kuti tithandizire kutentha kwa bolodi la PCB. Popanga PCB, kusankha makulidwe oyenera amkuwa kumatha kuwonetsetsa kuti gulu lozungulira lili ndi kutentha kwabwino. magwiridwe antchito kuti awonetsetse kuti zida zamagetsi zikuyenda bwino.
Kuphatikiza apo, makulidwe amkuwa amakhalanso ndi gawo lofunikira pakudalirika komanso kukhazikika kwa bolodi ladera. Chosanjikiza chamkuwa sichimangogwira ntchito ngati chingwe chamagetsi ndi thermally conductive, komanso chimagwira ntchito ngati chothandizira ndi kugwirizana kwa bolodi la dera. Makulidwe oyenera amkuwa angapereke mphamvu zokwanira zamakina kuti ateteze gulu lozungulira kuti lisapindike, kuswa kapena kutsegula pakagwiritsidwa ntchito. Pa nthawi yomweyi, makulidwe oyenera amkuwa amatha kuonetsetsa kuti bolodi la dera laling'ono likuyenda bwino ndi zigawo zina ndikuchepetsa chiopsezo cha zolakwika zowotcherera ndi kulephera. Choncho, popanga PCB, kusankha makulidwe oyenera amkuwa kumatha kusintha kudalirika ndi kukhazikika kwa gulu ladera ndikukulitsa moyo wautumiki wazinthu zamagetsi.
Mwachidule, kufunika kwa makulidwe amkuwa pakupanga PCB sikunganyalanyazidwe. Makulidwe olondola amkuwa amatha kuonetsetsa kuti madulidwe amagetsi, magwiridwe antchito a kutentha, kudalirika komanso kukhazikika kwa bolodi ladera.
Pakupanga kwenikweni, ndikofunikira kusankha makulidwe oyenera amkuwa malinga ndi zinthu monga zofunikira za kapangidwe ka bolodi, zofunikira zogwirira ntchito, komanso kuwongolera mtengo kuti zitsimikizire kuti zinthu zili bwino komanso magwiridwe antchito amagetsi. Ndi njira iyi yokha yomwe ma PCB apamwamba angapangidwe kuti akwaniritse ntchito zapamwamba komanso zofunikira zodalirika pazida zamakono zamakono.
