The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 1977
Filed:
May. 11, 1976
Gary Hillman, Livingston, NJ (US);
Michael J Devico, Chatham, NJ (US);
Machine Technology, Inc., East Hanover, NJ (US);
Abstract
Apparatus is provided for transferring a selected one of a plurality of workpieces, such as silicon wafers or masks, from within a cassette containing the workpieces to a processing station for scrubbing, etching, etc. The apparatus includes a wafer-supporting arm which is movable between a retracted position within the cassette and a scrubbing station for moving the selected one of the silicon wafers from its position within the cassette to the scrubbing station and for returning the selected wafer from the scrubbing station to the cassette. A selection device then operates to move the cassette downwardly so that the next silicon wafer to be cleaned is in position to be picked up by the wafer-supporting arm when it is next moved between its retracted position and the scrubbing station.