Adhesive bonding and miscellaneous chemical manufacture – Differential fluid etching apparatus – With microwave gas energizing means
Patent
1995-02-16
1996-10-29
Kunemund, Robert
Adhesive bonding and miscellaneous chemical manufacture
Differential fluid etching apparatus
With microwave gas energizing means
118723E, 118728, 118729, 118500, 20429815, C23F 102, C23C 1600
Patent
active
055693504
ABSTRACT:
A mechanism for completely separating a substrate, such as a semiconductor substrate, from at base in such a way that the substrate is in a horizontal position and can be easily removed from an electrostatic chuck. The substrate is mounted on a pedestal which is placed on a base such as an electrode. Pins are mounted within the base beneath a central portion of the substrate. The pins can be moved vertically through the circular pedestal to lift the substrate from the pedestal. A ring is mounted around the pedestal and underneath the outer edge of the substrate. When the pins are protrude beyond the top surface of the circular pedestal the substrate is lifted and caused to tilt. The ring then is lifted to act on the outer edge of the rear surface of the substrate, thus separating the substrate from the circular pedestal and returning the substrate to a horizontal position.
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Osada Tomoaki
Shirai Yasuyuki
Anelva Corporation
Kunemund Robert
Lund Jeffrie R.
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