3 ms·
It is glued down. The fiberglass (FR4) is filled with glue, the back of copper foil is lightly roughed up with an oxidizer and then the materials are laminated
by lux_scintilla 7y ago
It is glued down. The fiberglass (FR4) is filled with glue, the back of copper foil is lightly roughed up with an oxidizer and then the materials are laminated together.