Patent ID: 7988817
Filing Date: 2011-08-02
Classification: H01L,Y10T

Abstract:
1. A lift pin driving device configured for use with a substrate support in a flat panel manufacturing device, comprising a driving structure, comprising: a plurality of shafts coupled together at respective ends thereof so as to form a closed polygonal arrangement of shafts that define an open central portion; and a single driver configured to rotate one of the plurality of shafts, wherein the respective ends of the plurality of shafts are coupled such that rotation of the one of the plurality of shafts causes the plurality of shafts to all rotate in the same direction simultaneously; and a plurality of lift pins coupled to the driving structure, wherein the plurality of lift pins are configured to move vertically through a substrate support positioned above the driving structure as the single driver rotates the one of the plurality of shafts; wherein each of the plurality of lift pins is coupled to one of the plurality of shafts by a cam.