Connection of the PCB Supplier :
The customer may request that some or all of the fire hose are to be plucked with resin and capped over with Copper IPC 476. one type seven, the ITC via film machine, has a set of vacuum heads that create a localized vacuum the epoxy resin is then pulled into the wires due to a pressure difference this ensures that through. The blind fires can be filled 100% with no voiding; the copper plating is deposited electrically on areas without resistance and within the wires to PCB Supplier to create connections between the inner layers.

The PCB Supplier panel is placed in the plating solution and acts as the cathode side of the plating cell, attracting the Copper. When an electrical current is applied, tin is applied, acting as an etch resist the SES line, or strip edge strip line firstly removes the plating resist exposed and developed in the same way as the inner layer resist. They chemically remove the Copper that was covered by the plating resist. Finally, the tin is removed, protecting the copper image on the surface and in the vial, leaving the required circuitry. The Copper in the via is now connecting all




