The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 25, 2012

Filed:

Sep. 23, 2009
Applicants:

Gerhard Kalkowski, Jena, DE;

Stefan Risse, Jena, DE;

Thomas Peschel, Jena, DE;

Christoph Damm, Jena, DE;

Inventors:

Gerhard Kalkowski, Jena, DE;

Stefan Risse, Jena, DE;

Thomas Peschel, Jena, DE;

Christoph Damm, Jena, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B 27/58 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
Abstract

Flexibly deformable holding elements operate such that substrates can be held in a fixed manner at a surface of the holding element electrostatically or also by use of negative pressure and planar positional deviations or unwanted deformations can be compensated simply and reliably, where at least one cut-out having an opening arranged at the rear side is formed at the rear side of the holding element which is disposed opposite the surface, and an actuator is arranged there exerting compressive forces or pulling forces for a widening or narrowing of the cut-out and/or for a deformation of the holding element.


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