Tag nrho peb yog fiberglass boards.
Feem ntau cov epoxy boards nyob rau hauv kev ua lag luam yog phenolic epoxy, hom daj, uas feem ntau tsis yog siv los ua ib qho kev sib tw hauv Circuit Court board substrate, tab sis rau hluav taws xob rwb thaiv tsev lub hom phiaj.
FR4 yog cov ntshiab epoxy board raws li NEMA tus qauv. Cov xim ib txwm yuav tsum yog ntsuab tsaus, uas yog xim ntawm epoxy. Kuj muaj cov daj. Feem ntau hais lus, daj FR4 yog hu ua khoom daj, thiab dawb (ntsuab) yog hu ua cov khoom dawb.
FR4 yog kim dua epoxy board, thiab tus nqi ntawm fiberglass board tsis tuaj yeem lees paub.
