Patent ID: 8454357
Filing Date: 2013-06-04
Classification: B30B,B32B

Abstract:
1. A hotplate for a workpiece, comprising: a heatable plate having a first side and a second side, wherein the first side comprises a support surface for the workpiece; lifting elements for lifting the workpiece relative to the support surface, wherein each lifting element is moveably arranged so as to be retractable with respect to the support surface and/or extendable with respect to the support surface; and at least one heating channel which extends on the second side of the plate located opposite the support surface and is filled with a heating fluid, wherein the heating fluid is in contact with the plate, and each lifting element is arranged in a guide hole passing through the plate and comprises a piston which is loaded with the heating fluid such that the lifting element is extendable through a predetermined change of the hydrostatic pressure of the heating fluid.