Patent ID: 8001831
Filing Date: 2011-08-23
Classification: B82Y,G01Q

Abstract:
1. A positioning apparatus comprising: a stage unit extending in first and second directions and comprising a first surface and a second surface, the stage unit comprising: a support unit that supports the stage unit in the first and second directions, wherein a surface of the support unit faces the second surface of the stage unit; a first drive element that expands and contracts in the first direction and has one end that presses the second elastic support; a second drive element that expands and contracts in the second direction and has one end that presses the first elastic support; a third drive element that expands and contracts in a third direction orthogonal to the first and second directions, the third drive element comprising one end attached on a top surface of the center unit; and wherein an object is mounted on the other end of the third drive element and the first, second and third drive elements expand and contract in the first, the second and the third directions, respectively, to position the object; and wherein the second surface of the stage unit is spaced from the surface of the support unit, and the space is filled with a viscosity agent.