Steag Hamatech Ag

Stephan Leonhardt

Ulrich Speer

Roland Wagner

In order to reduce cycle times for assembling at least two substrates () in order to form an optical data carrier in a low-pressure chamber (), a method and a device are disclosed wherein an opening () of the low-pressure chamber is sealed in relation to the surrounding environment, the low-pressure chamber is pumped out, a transfer chamber () is formed between a first handling device () arranged in the low-pressure chamber and a second handling device () arranged outside the low-pressure chamber by respectively sealing the opening () of the low-pressure chamber (). The transfer chamber () has a smaller volume than that of the low-pressure chamber (); the substrates () in the transfer chamber () are transferred from the second handling device () to the first handling device (); the substrates are conveyed () with the first handling device () to an assembly station () in the low-pressure chamber when low-pressure chamber is sealed by the second handling device (), and the substrates () are assembled in the assembly station ().

Method and apparatus for joining substrates

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.

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Bretten, Germany

Stephan Leonhardt