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Document Number
US Patent 7032287
Issued Date
April 25, 2006
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Abstract
An actuated edge grip chuck includes tabs with raised portions that press against the side of a substrate as opposed clamping on the top or bottom surfaces. The edge grip chuck includes a solid-state actuator to move a moveable tab into an open position. The solid-state actuator may be, e.g., a piezoelectric actuator or a shape memory alloy. The tab may be biased into the closed position such that when a substrate is held by the edge by the moveable tab and one or more fixed tabs. If desired, more than one moveable tab may be used.
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Number of Claims:
26
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Published
April 25, 2006
Application Number
10/198,948
Filed
July 19, 2002
US Classification
29/559   118/500 118/503 269/268 269/287 279/110 279/123
Int'l Classification
B23Q   7/00   (20060101)   B05C   13/00   (20060101)   B05C   13/02   (20060101)  
Examiner
USPTO Field of Search
29/559   29/283   279/110   279/123   279/121   279/119   269/268   269/287   269/134   269/136   269/138   118/500   118/503  
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