Steag Hamatech Ag

Ulrich Speer

Klaus Weber

Stephan Leonhardt

Roland Wagner

Bj&ouml;rn Liedtke

Ludwig Denzler

Alexander Hupp

Hans Gerd Esser

James Wise

Frank Michels

Joachim Gordt

An apparatus is provided for joining together substrates, which have an inner hole, to form a substrate disk. An expandable element is introducible into the inner hole of at least two superimposed substrates. The element is expandable to such an extent that it can come into contact with the inner holes of both of the substrates to close off an intermediate space formed between the substrates relative to the environment. A substrate support is rotatable about an axis of rotation perpendicular to a support surface thereof. A centering device is rotatably coupled with the substrate support and is movable relative thereto in the direction of the axis of rotation. The expandable element is disposed, and is compressible, between the substrate support and the centering device.

Device for joining substrates

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.

Method and device for assembling substrates

An apparatus is provided for joining together at least two substrates, each of which has an inner hole. The apparatus has a pin that is adapted to the inner holes of the substrates. The pin is provided with at least two noses that are movable radially relative to the pin. The noses have linear outer surfaces upon which the edges of the inner holes of the substrates can glide downwardly during movement of the noses toward the pin.

Apparatus for joining substrates together

An apparatus for fixing and centering substrates that are each provided with an inner hole is provided. The apparatus has a housing having an axis that extends perpendicular to the plane of a substrate placed on the apparatus. A fixation unit is guided in the housing and is introducible into the inner hole of a substrate. The fixation unit includes an outer element that is moveable along the axis of the housing and relative to the housing, and also includes an inner element that is moveable along the axis of the housing and relative to the housing and to the outer element, which, by way of a relative movement of the inner and outer elements, is expandable for engagement with the inner hole of a substrate.

Apparatus for fixing substrates

An apparatus and method are provided for handling substrates that are provided with an inner hole. The apparatus includes an inner gripper in the form of an inner hole gripper, and an outer gripper that is embodied as a vacuum gripper and is provided with a ring in which are disposed a plurality of suction devices. A control unit controls the inner and outer grippers such that they are moved relative to one another, while they grasp one and the same substrate, for deforming or bending the substrate. According to the method, a first substrate is grasped by the inner hole gripper, is brought into contact with an outer gripper, and is grasped by the outer gripper. The inner hole gripper is released and moved through the hole in the first substrate and then grasps a second substrate. After releasing the second substrate, the inner hole gripper again grasps the first substrate and the inner and outer grippers are moved relative to one another to bend the first substrate, whereupon the center portion of the bent first substrate is brought into contact with the second substrate. Thereafter, the remaining portions of the first substrate are brought into contact with the second substrate.

Apparatus and method for handling substrates

A device for drying substrate disks by irradiation with ultraviolet light, wherein during the irradiation process a glass plate is resting on the substrate disk, has a lower part on which the substrate disk rests during drying and a liftable and lowerable upper part for lowering a glass plate onto the substrate disk resting on the lower part. The upper part has a glass plate holding device that is lowered below the substrate disk upon lowering of the upper part for placement of the glass plate onto the substrate disk.

Growing community of inventors

Eisingen, Germany

Ulrich Speer