Patent ID: 8240650

Claim:
A chuck with triaxial construction, the chuck comprising: a receiving surface that is configured to receive a test substrate; a first surface element, wherein the first surface element is electrically conductive; a second surface element, wherein the second surface element is electrically conductive and is separated from the receiving surface by the first surface element; a third surface element, wherein the third surface element is electrically conductive and is separated from the first surface element by the second surface element; a first insulation element, wherein the first insulation element is located between and electrically isolates the first surface element and the second surface element; a second insulation element, wherein at least one of the surface elements is held in contact with at least one insulation element by vacuum and has an elasticity that compensates for an expansion difference resulting from differences in different coefficients of thermal expansion between a respective surface element and an adjoining insulation element; and an electrically insulating baseplate that includes the second insulation element, wherein the electrically insulating baseplate includes a vacuum clamping opening that is configured to be connected to a vacuum source, wherein the third surface element is included in the baseplate, and further wherein the second surface element is placed onto a top side of the baseplate and is configured to be fixed to the baseplate by a vacuum that is applied to the vacuum clamping opening.