Patent ID: 8927090
Filing Date: 2015-01-06
Classification: B29C,C09J,F16B,G03F,Y10T

Abstract:
1. A composite body, comprising: a solid first body, a panel-shaped second body, which projects in at least one direction laterally beyond a lateral edge of the solid first body, an adhesive bonding the solid first body and the panel-shaped second body to each other at bonding surfaces of the solid first body and the panel-shaped second body, the bonding surfaces lying opposite each other, the solid first body and the panel-shaped second body being configured as parts of a microlithography positioning stage, wherein at least one of the bonding surfaces comprises a plurality of spacers arranged in the lateral direction, and the adhesive is applied both into intermediate spaces laterally between the spacers and laterally beyond an outermost spacer as far as a lateral adhesive periphery, which is formed at the lateral edge of the solid first body, wherein a distance in the lateral direction between the adhesive periphery and the outermost spacer is between 20 μm and 250 μm, to set a state of deformation of the panel-shaped second body that minimizes bending of the panel-shaped second body in directions perpendicular to the lateral direction after shrinkage of the applied adhesive, and wherein the spacers are formed as projections in one of the bonding surfaces, the one bonding surface being microstructured, and the projections have a maximum width in the lateral direction of less than 250 μm.