Kedu ihe dị iche n’etiti epoxy resin osisi na epoxy iko akwa mbadamba?

FR-4 bụ koodu aha ọkwa ọkwa ihe na-eguzogide ọkụ. Ọ na-anọchite anya nkọwapụta ihe na ihe resin ga-enwe ike imenyụ n’onwe ya mgbe ọkụ gachara. Ọ bụghị aha ihe onwunwe, kama ọkwa ihe onwunwe. Ya mere, sekit izugbe ugbu a E nwere ọtụtụ ụdị FR-4 ihe eji eme ihe na bọọdụ, ma ọtụtụ n’ime ha bụ ihe ndị mejupụtara nke a na-akpọ Tera-Function epoxy resin, Filler na glass fiber.