Patent ID: 11955339
Assignee: EV GROUP E. THALLNER GMBH
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A device for bonding a first substrate with a second substrate at mutually facing contact faces of the first and second substrates, said device comprising:
a first holding device including a plurality of fixing elements for holding the first substrate to a first holding surface;
a second holding device including a plurality of fixing elements for holding the second substrate to a second holding surface;
a plurality of distance sensors distributed along at least one of the first holding surface or the second holding surface;
a curvature changing device for changing a curvature of the first substrate and/or for changing the curvature of the second substrate, said curvature changing device controlling the change of curvature of the first substrate and/or the second substrate during the bonding of the first substrate with the second substrate; and
a controller operatively coupled to the first and second holding devices, the plurality of distance sensors, and the curvature changing device, the controller configured to
detect, based on data obtained from the distance sensors, curvatures of the first and/or second substrates and/or change in the curvatures of the first and/or second substrates,
selectively release at least one fixing element of the first and/or second holding surfaces based on
i) the detected curvature of the first substrate and/or the detected curvature of the second substrate, respectively, and/or
ii) the detected change in curvature of the first substrate and/or the detected change in curvature of the second substrate, respectively, to achieve a target curvature of the contact face of the first substrate and/or a target curvature of the contact face of the second substrate.