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:
Nov. 01, 2011
Filed:
May. 18, 2006
Felix Jaeger, Stockach, DE;
Wolfgang Schmutz, Zimmern, DE;
Michael Kieninger, Weinheim, DE;
ACI ecoTec GmbH, Zimmern ob Rottweil, DE;
Abstract
A device for separation of damp silicon wafers from a wafer stack, whereby the damp wafers may be removed individually from the stack, transferred to a subsequent conveyor device and the damp thin fragile wafers held in the stack can be rapidly separated and isolated even in large format. The device comprises separation rollers on which the wafer stack may be placed. On rotation of the separation rollers, the lowest wafer is displaced under a doctor strip through a wafer-thin gap between the roller plane and doctor strip and withdrawn from the wafer stack by elastic pressure by a pair of superimposed delivery rollers driven at the same speed.