Dab tsi yog qhov txawv ntawm cov epoxy cob board and epoxy glass cloth board?

FR-4 yog lub npe code ntawm cov nplaim hluav taws-resistant khoom qib. Nws sawv cev rau cov khoom siv tshwj xeeb uas cov khoom siv cob yuav tsum tuaj yeem tua los ntawm nws tus kheej tom qab hlawv. Nws tsis yog lub npe khoom, tab sis qib khoom siv. Yog li ntawd, tam sim no cov khoom siv hluav taws xob tam sim no muaj ntau hom FR-4 qib cov ntaub ntawv siv hauv lub rooj tsavxwm, tab sis lawv feem ntau yog cov khoom sib xyaw ua los ntawm cov khoom hu ua Tera-Function epoxy resin, Filler thiab iav fiber ntau.