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Clamping mechanism for semiconductor device

Image Number 2 for United States Patent #8118940.

A clamping mechanism for a semiconductor substrate includes: a C-shaped pickup plate; a susceptor top plate having a periphery adapted to receive and support an inner periphery portion of the C-shaped pickup plate thereon; and a clamp comprising (i) a top ring portion for clamping the substrate by sandwiching a periphery of the substrate between the top ring portion and the susceptor top plate and (ii) a pickup plate supporting portion adapted to support an outer periphery portion of the C-shaped pickup plate, wherein the C-shaped pickup plate is movable between the top ring portion and the pickup plate supporting portion, and the clamp is movable upward together with the C-shaped pickup plate and the susceptor top plate.

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