Patent ID: 9421617
Filing Date: 2016-08-23
CPC Classification: B23B,F26B,H01L,Y10T

Claim Text:
1. A rotary chuck configured to hold a substrate, the rotary chuck comprising: a rotatable chuck portion; an edge grip having a movable grip member movably mounted to the rotatable chuck portion, the movable grip member being substantially free moving; a pivot coupled to the rotatable chuck portion with an axis of rotation that is substantially aligned with an axis of the rotary chuck, the movable grip member coupled to the rotatable chuck portion and pivot such that rotation of the rotatable chuck portion causes the movable grip member to rotate on the axis of rotation of the pivot; and a resilient element coupled to the movable grip member, and the resilient member further coiled around the pivot such that when the rotary chuck is stationary, the resilient member causes the movable grip member to rotate to a disengaged position.