Abstract: In order to reduce cycle times for assembling at least two substrates (3,4) in order to form an optical data carrier in a low-pressure chamber (8), a method and a device are disclosed wherein an opening (11) of the low-pressure chamber is sealed in relation to the surrounding environment, the low-pressure chamber is pumped out, a transfer chamber (64) is formed between a first handling device (16) arranged in the low-pressure chamber and a second handling device (24) arranged outside the low-pressure chamber by respectively sealing the opening (11) of the low-pressure chamber (8).

Abstract: A method and apparatus for joining at least two substrates together, especially to form an optical data carrier, are provided. Substrates are disposed in a spaced-apart manner between two plates that are disposed opposite from, and are movable relative to, one another. At least one of the plates is connected to a flexible membrane. At least the plate to which the flexible membrane is connected is moved in such a way that a pressure difference is produced on opposite sides of the membrane.

Abstract: In order to ensure synchronous rotation of two substrates during bonding in a simple and economical manner, the invention provides a device for bonding two substrates having one inner hole to a substrate disc. Said device comprises a first rotating holding device (55) to hold the first substrate, a second rotating holding device (84) to hold the second substrate (84) and a drive mechanism for rotating one of the holding devices, wherein the second holding device is coupled to a rotating shaft (72) in a rotationally fixed manner (72), said shaft having a centering part (20) engaging in the inner hole of at least the second substrate while the second holding device can be moved along the axis of rotation of the shaft and thereupon.

Abstract: In order to ensure simultaneous rotation of two substrates during boding in a simple and economical manner, the invention provides a device for bonding two substrates having one inner hole to a substrate disc. Said device comprises a first holding device (55) to hold the first substrate, a centering pin that is connected in a rotationally fixed manner to the first holding device (84) and that can be inserted into the inner hole of at least the first substrate, in addition to a drive mechanism for rotating the centering pin (1) and the first holding device. The invention is characterized by a driver (20) that can be engaged with the centering pin (1) and a second holding device to hold the second substrate, which is connected to the driver (20) in a rotationally fixed manner.

Abstract: A method and apparatus for joining at least two substrates together, especially to form an optical data carrier, are provided. Substrates are disposed in a spaced-apart manner between two plates that are disposed opposite from, and are movable relative to, one another. At least one of the plates is connected to a flexible membrane. At least the plate to which the flexible membrane is connected is moved in such a way that a pressure difference is produced on opposite sides of the membrane.

Abstract: In order to reduce cycle times for assembling at least two substrates (3,4) in order to form an optical data carrier in a low-pressure chamber (8), a method and a device are disclosed wherein an opening (11) of the low-pressure chamber is sealed in relation to the surrounding environment, the low-pressure chamber is pumped out, a transfer chamber (64) is formed between a first handling device (16) arranged in the low-pressure chamber and a second handling device (24) arranged outside the low-pressure chamber by respectively sealing the opening (11) of the low-pressure chamber (8).