Copper Foil with an Aluminum Separator Sheet


CAC® Lamination Foil

Aluminum Separators



In the same ten-high lay-up, operators must wipe 40 surfaces to ensure the best possible surface cleanliness. Because CAC, Inc. delivers CAC pre-sealed from the factory, operator cleaning of critical surfaces is no longer necessary. The combined productivity gains are typically 30% to 50%.

Because the foil is attached to a rigid separator, CAC with thin foils, 9 µm (0.25 oz) or 12 µm (0.375 oz), significantly eases creation of fine lines and spaces as small as 50 µm (0.002″).

Handling and registration of thin copper foil onto lamination fixture pins can cause handling wrinkles, a major source of foil pinholes. Another source of foil wrinkles, thermal expansion mismatch between copper foil and steel separators, is eliminated by the use of aluminum separators.

The use of CAC® can reduce inherent temperature differences in a lamination book due to its improved thermal conductivity as compared to steel separators.

With CAC Layup

Without CAC Layup