Patent ID: 7789443

Claim:
Apparatus for holding a semiconductor wafer during movement and/or rotation of the wafer comprising: a) first and second elongated arms for trapping a wafer between said arms for movement and/or rotation; b) at least three grippers mounted to the first and second elongated arms; and d) a drive for relatively moving the first and second arms with respect to each other to grasp the wafer with all three grippers; e) wherein one gripper comprises i) a support body for removably attaching the one gripper to the first or second elongated arms; ii) a workpiece contact body for engaging an edge of the wafer; and iii) a coupling member having a flexure component having two flexure arms connecting the contact body to the support body that bend in response to contact with the wafer and allow relative movement of said support body and said workpiece contact body to diminish contact forces between the workpiece and the contact body as the gripper engages the wafer.