Applied Materials, Inc.
Proximity contact cover ring for plasma dicing
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Abstract:
Methods of and carriers for dicing semiconductor wafers, each wafer having a plurality of integrated circuits, are described. In an example, a cover ring for protecting a carrier and substrate assembly during an etch process includes an inner opening having a diameter smaller than the diameter of a substrate of the carrier and substrate assembly. An outer frame surrounds the inner opening. The outer frame has a bevel for accommodating an outermost portion of the substrate of the carrier and substrate assembly.
Status:
Grant
Type:
Utility
Filling date:
19 Sep 2014
Issue date:
7 Dec 2021