Icyo dukunze kuvuga ni " FR-4 Ibikoresho byo mu cyiciro cya Fibre Ubuyobozi bwa PCB . hari ubwoko bwinshi bwibikoresho byo mu rwego rwa FR-4 bikoreshwa mubibaho rusange byumuzunguruko muri iki gihe, ariko ibyinshi muri byo bikozwe mubyo bita Tera-Imikorere epoxy resin wongeyeho kuzuza (Uzuza) hamwe na fibre y'ibirahuri Ibikoresho byakozwe.
Ikibaho cyoroshye cyacapwe .Ikibaho cyoroshye cyacapwe cyumuzunguruko nigicuruzwa cyateguwe kandi gikozwe kuri substrate yoroheje hakoreshejwe gucapa. 
Hariho ubwoko bubiri bwingenzi bwibicapo byumuzunguruko byacapwe: ibikoresho bya organic substrate nibikoresho bya organic organique, nibikoresho bya organic substrate nibikoresho bikoreshwa cyane.PCB substrates ikoreshwa iratandukanye kubice bitandukanye.Kurugero, imbaho 3 kugeza kuri 4 zigomba gukoresha ibikoresho byakozwe mbere, kandi imbaho zibiri zikoresha cyane ibirahuri-epoxy. Mugihe duhitamo urupapuro, dukeneye gusuzuma ingaruka za SMT Muburyo bwo guteranya ibikoresho bya elegitoroniki bidafite imbaraga, kubera ubwiyongere bwubushyuhe, urwego rwo kugunama ku kibaho cyumuzingo cyacapwe iyo gishyushye cyiyongera.Kubwibyo, birasabwa gukoresha ikibaho gifite urwego ruto rwo kugunama muri SMT, nkubwoko bwa FR-4.
Kuva kwaguka no kugabanuka kwa substrate nyuma yo gushyuha bigira ingaruka kubigize, bizatera electrode gucika kandi bigabanye kwizerwa.Kubwibyo, coefficente yo kwagura ibikoresho igomba kwitonderwa muguhitamo ibikoresho, cyane cyane iyo ibice binini kurenza 3.2 × 1.6mm.PCB ikoreshwa muburyo bwa tekinoroji yo guterana isaba ubushyuhe bwumuriro mwinshi, guhangana nubushyuhe buhebuje (150 ℃, 60min) hamwe no kugurisha (260 ℃, 10s), imbaraga zo gufatira umuringa mwinshi (1.5 × 104Pa cyangwa zirenga) hamwe no kunama (25 × 104Pa), umuyoboro mwinshi hamwe na dielectric ntoya ihoraho, gukubitwa neza (ubunyangamugayo ± 0.02mm) hamwe no guhuza ibikoresho byogusukura, byongeye kandi, isura irasabwa kuba yoroshye kandi iringaniye, nta kurigata, gucamo, inkovu nuduce twinshi, nibindi. 
Guhitamo PCB Ubunini bwikibaho cyacapwe ni 0.5mm, 0.7mm, 0.8mm, 1mm, 1.5mm, 1,6mm, (1.8mm), 2.7mm, (3.0mm), 3.2mm, 4.0mm, 6.4mm, muri byo 0.7 mm na 1.5 PCB ifite umubyimba wa mm ikoreshwa mugushushanya imbaho zibiri zifite intoki za zahabu, naho 1.8mm na 3.0mm nubunini budasanzwe. Urebye ku musaruro, ingano yikibaho cyacapwe cyumuzingo ntigomba kuba munsi ya 250 × 200mm, kandi ubunini bwiza ni rusange (250 ～ 350mm) × (200 × 250mm).Kuri PCBs ifite impande ndende ziri munsi ya 125mm cyangwa ubugari buri munsi ya 100mm, byoroshye Ukoresheje uburyo bwa jigsaw. Tekinoroji yo hejuru yubuso iteganya ingano yo kugabanura substrate hamwe nubunini bwa 1,6mm nkintambara yo hejuru ≤0.5mm hamwe nintambara yo hasi ≤1.2mm 
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