Device for the separation of substrates from a stack

Details Device for the separation of substrates from a stack Device for the separation of substrates from a stack

2006-05-18

2011-11-01

Adams, Gregory (Department: 3652)

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Unstacking apparatus

C271S137000, C271S165000

Reexamination Certificate

active

08047761

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lowest wafer is displaced under a doctor strip through a wafer-thin gap between the roller plane and doctor strip and withdrawn from the wafer stack by elastic pressure by a pair of superimposed delivery rollers driven at the same speed.

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