Fim Substrate Fim substrate shine babban tsari na PCB Samarwa. A samar da wani nau’i na PCB, kowane lantarki graphics (sigina Layer kewaye graphics da ƙasa, ikon Layer graphics) da kuma wadanda ba conductive graphics (welding juriya graphics da haruffa) ya kamata a kalla daya fim tushe farantin. Aikace-aikacen substrate na fim a cikin samar da PCB shine zane-zanen abin rufe fuska mai ɗaukar hoto a cikin canja wurin hoto, gami da zane-zane da zane-zane na hoto. Tsarin bugu na allo a cikin samar da siliki, gami da toshe zane-zanen walda da haruffa; Machining (hakowa da kwane-kwane milling) CNC tushen shirye-shirye na inji da kuma hakowa tunani.

Copper Clad Laminaters (CLL), wanda ake magana da shi azaman yaduddukan foil na Copper Clad ko faranti masu sanye da tagulla, sune kayan da ake amfani da su don yin PCBS. A halin yanzu, PCBS ɗin da aka fi amfani da shi na etching ana zaɓen akan foil ɗin da aka yi da tagulla don samun layin da ake so.

Bayan an kammala ƙirar PCB, saboda siffar hukumar PCB ta yi ƙanƙanta don biyan bukatun tsarin samarwa, ko samfurin ya ƙunshi PCBS da yawa, ya zama dole a haɗa ƙananan allunan da yawa a cikin babban jirgi wanda ya dace da bukatun samarwa. Ya kamata a fara yin taswirar tushe na fim, sannan a ɗauki hoto ko sake buga ta ta amfani da taswirar tushe. Tare da haɓaka fasahar kwamfuta, fasaha na CAD da aka buga ya sami babban ci gaba, kuma fasahar samar da PCB ta inganta da sauri zuwa nau’i-nau’i da yawa, waya na bakin ciki, ƙananan rami da babban jagora mai girma. Tsarin masana’antar fim na asali ba zai iya biyan buƙatun ƙira na PCB ba, don haka fasahar zanen haske ta fito. Fayilolin bayanan hoto na PCB waɗanda CAD suka tsara za a iya aika su kai tsaye zuwa cikin tsarin kwamfuta na injin zane na gani ta amfani da haske don zana zane-zane kai tsaye akan mummunan, sannan bayan haɓakawa, sigar fim ɗin gyarawa.

Ƙirƙirar bayanan zane mai haske shine canza bayanan ƙira da software na CAD ke samarwa zuwa bayanan zane mai haske (mafi yawan bayanan Gerber), wanda tsarin CAM ke gyarawa da daidaita shi don kammala aikin zanen haske (collage, mirroring, da sauransu), don haka kamar yadda don saduwa da buƙatun tsarin samar da PCB, sannan aika bayanan da aka sarrafa zuwa injin zane mai haske. Ana canza na’urar sarrafa bayanan hoton na’urar zanen gani zuwa bayanan raster, kuma ana aika bayanan raster zuwa na’urar zanen Laser ta hanyar babban matsi mai sauri da maidowa algorithm don kammala zanen gani.