Coating apparatus – Projection or spray type – Plural projectors
Reexamination Certificate
2011-06-07
2011-06-07
Hassanzadeh, Parviz (Department: 1716)
Coating apparatus
Projection or spray type
Plural projectors
C118S300000, C118S500000, C279S003000, C269S021000
Reexamination Certificate
active
07954449
ABSTRACT:
A solar cell production system utilizes self-contained vacuum chucks that hold and cool solar cell wafers during transport on a conveyor between processing stations during a fabrication process. Each self-contained vacuum chuck includes its own local vacuum pump and a closed-loop cooling system. After each wafer is processed, it is removed from its vacuum chuck, and the vacuum chuck is returned to the start of the production line by a second conveyor belt. In one embodiment, each vacuum chuck includes an inductive power supply that is inductively coupled to an external source to drive that vacuum chuck's vacuum pump and cooling system. An optional battery is recharged by the inductive power supply, and is used to power the vacuum pump and cooling system during hand-off between adjacent processing stations.
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Duff David G.
Eldershaw Craig
Bever Patrick T.
Bever Hoffman & Harms LLP
Capozzi Charles J
Hassanzadeh Parviz
Palo Alto Research Center Incorporated
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