Heated annulus chuck
AssigneeAxcelis Technologies, Inc.
InventorsWilliam Davis Lee, Gary M. Cook, Perry J. I. Justesen, Ashwin M. Purohit, Robert D. Rathmell, Allan D. Weed
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AssigneeAxcelis Technologies, Inc.
InventorsWilliam Davis Lee, Gary M. Cook, Perry J. I. Justesen, Ashwin M. Purohit, Robert D. Rathmell, Allan D. Weed
Estimating the term…
A clamping device and method is provided for securing first and second workpieces having different sizes to a clamping device and providing thermal conditioning thereto. An electrostatic clamping plate having a diameter associated with the first workpiece surrounds a central portion of the clamp. A non-electrostatic central portion provides a heater within the annulus, wherein the central portion has a diameter associated with the second workpiece. A workpiece carrier is provided, wherein the workpiece carrier is configured to hold the second workpiece above the heater, and wherein a diameter of the workpiece carrier is associated with the electrostatic clamping plate annulus. The annulus selectively electrostatically clamps the workpiece carrier or a circumferential portion of the first workpiece to its clamping surface, therein selectively maintaining a position of the first or second workpiece with respect to the annulus or non-electrostatic central portion.
A clamping device for selectively maintaining a position of a first workpiece and a second workpiece, the clamping device comprising:
A method clamping workpieces of varying sizes, the method comprising:
Dependencies are inferred from the claim text.