Gida
Allolin da'ira Buga Mai Girma
Menene kayan da ake amfani da su don yin babban allon PCB?
Ayyukan allon mitoci masu girma a cikin mara waya ko wasu mahalli masu girma ya dogara da kayan gini. Don aikace-aikace da yawa, yin amfani da kayan FR4 masu lanƙwasa na iya haɓaka kaddarorin dielectric.
Matsayin DF na kayan gabaɗaya yana ƙayyade aikin PCBs kai tsaye:
DK (dielectric akai-akai na DK abu, yana nuna ikonsa na adana caji) yakamata ya zama ƙanƙanta da kwanciyar hankali, yawanci ƙanƙanta gwargwadon yiwuwa, saboda babban DK na iya haifar da jinkirin watsa sigina.
DF (DF shine kusurwar hasara na kayan aiki, kuma lokacin da aka watsa sigina a cikin kayan, ba su gabaɗaya gabaɗaya gaba tare da hanyar siginar, kuma wasu daga cikinsu suna gudana ta cikin kayan cikin masu gudanarwa na kusa.) Ya kamata su zama ƙanƙanta sosai, wanda ya kamata ya zama ƙanƙanta. yafi rinjayar ingancin watsa sigina. Karamin DF na iya daidai da rage asarar sigina.
Matsakaicin haɓakar haɓakar thermal ya kamata ya kasance daidai da foil ɗin jan ƙarfe gwargwadon yuwuwar, saboda bambancin zai iya haifar da bangon jan ƙarfe ya rabu yayin canjin sanyi da zafi.
A cikin mahalli mai laushi, shayarwar ruwa dole ne ya zama ƙasa, yayin da babban shayar ruwa zai iya shafar DK da DF.
Juriya mai zafi, juriya na sinadarai, juriya mai tasiri, da juriya na kwasfa dole ne su kasance masu kyau. Matsakaicin faɗaɗa maɗaukakin zafi na allunan da'ira mai mitoci yana buƙatar zama daidai da foil ɗin jan ƙarfe gwargwadon yuwuwa, saboda babban allon kewayawa na iya haifar da rabuwar foil ɗin jan ƙarfe a ƙarƙashin yanayin sanyi da zafi. Don tabbatar da kyakkyawan aiki na allunan kewayawa masu tsayi, ya zama dole ya zama daidai da foil ɗin tagulla gwargwadon yiwuwa. Babban mitar PCBs suna da halayen juriya na zafi, juriyar lalata sinadarai, juriya mai tasiri, da juriya mai kyau.