Patent ID: 6844929
Filing Date: 2005-01-18
Classification: H01L,Y10T

Abstract:
1. A device for vertically positioning relatively thin wafers of material in a metrology system including in combination: a frame surrounding an opening dimensioned to be equal to or greater than the external diameter/width/length of a wafer to be positioned; three fixed rest members spaced apart at the edge of the opening in the frame and extending into the opening; three moving clamp members on the frame and located for movement toward and away from the corresponding fixed rest members to hold a wafer in place in the opening in the frame by clamping the wafer between the rest members and the clamp members; and two fixed rest pins located on one side of the opening in the frame to support a wafer when the frame is rotated 90° from a horizontal wafer loading/unloading position to a vertical position.