ʻO FR-4, kahi mākaʻikaʻi pae honua i ʻae ʻia no ka fiberglass reinforced epoxy laminated ʻo ia ka pale ahi (hoʻopau iā ia iho). Ma hope o ka hoʻohui ʻana i kahi ʻāpana keleawe ma kekahi a i ʻole kēlā me kēia ʻaoʻao o ka papa fr4, lilo ia i Copper Clad Laminate (CCL), a ʻo ia ka mea kumu non-conductive no ka papa kaapuni maʻamau i paʻi ʻia (PCB). E kapa ʻia ka papa kaapuni i paʻi ʻia me FR4 ma ke ʻano he kumu"FR4 PCB".
Hoʻohana ʻia ka papa PCB fr4 no ke kākoʻo mechanically a hoʻopili uila i nā mea uila me ka hoʻohana ʻana i nā ala conductive, nā ala, a i ʻole nā mea hōʻailona i kālai ʻia mai ka substrate laminate copper-clad. I kekahi manawa, kapa ʻia ʻo PCB i Printed Wiring Board (PWB) a i ʻole etching wiring board inā ʻaʻohe mea uila i hoʻohui ʻia.
Hāʻawi ʻo Best Technology i ka papa fr4 maikaʻi loa i loaʻa i kahi ākea o nā ʻano a me nā kikoʻī. ʻenehana maikaʻi loamea hana fr4 koho akahele i ka waiwai maka. Hiki iā mākou ke hana i ka papa fr4 i ʻoi aku ka hoʻokūkū ma mua o nā huahana ʻē aʻe o ka ʻoihana. Loaʻa iā ia nā pōmaikaʻi i ka hana kūloko, ke kumukūʻai, a me ka maikaʻi.
ʻO ka moʻo huahana ʻenehana maikaʻi loa he mau sub-huahana. ʻO kā mākoufr4 pcb mea hana nānā nui i ka pono a me ka inoa ʻoihana. Mālama mākou i ka maikaʻi a me nā kumukūʻai hana o ka hana. ʻO kēia mau mea a pau e hōʻoiaʻiʻo ana i ka papa fr4 ka maikaʻi-hilinaʻi a me ke kumu kūʻai.