Method and apparatus for laminating a first and a second sheet

Apparatus for laminating a first and a second sheet comprising:

• a chamber having a first, a second and a third compartment subsequently arranged along a first axis, each compartment having a port;
• a first sheet carrier arranged transverse to said first axis and being displaceable along said first axis;
• a second sheet carrier arranged in a plane aligned with and opposite the first sheet carrier, the second sheet carrier being displaceable and/or rotatable in said plane,
• a first flexible membrane extending laterally to a wall of the chamber;
• wherein the first flexible membrane or the first sheet carrier and the first flexible membrane separate the first and the second compartment of the chamber from each other;
• a second flexible membrane extending laterally from the second sheet carrier to the wall of the chamber, the second sheet carrier and the second flexible membrane separating the second and the third compartment of the chamber from each other;
• an alignment facility to align the second sheet relative to the first sheet by moving the second sheet carrier in a direction transverse to the first axis and/or rotating the second sheet carrier around an axis parallel to the first axis;
• and
• the apparatus having a first main operational mode wherein a ratio of a pressure inside the first compartment over a pressure inside the second compartment is a first ratio and a second main operational mode wherein the ratio of the pressure inside the first compartment over the pressure inside the second compartment is a second ratio and a ratio of a pressure inside the third compartment over a pressure inside the second compartment is a third ratio, wherein both the second and third ratios are greater than the first ratio.