Substrate layer cutting device and method

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se

Reexamination Certificate

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Details

C156S345420, C438S458000, C083S468100, C083S468930

Reexamination Certificate

active

07406994

ABSTRACT:
An automatic high-precision layer cutting device for separating a layer from a semiconductor substrate. The device includes a fixed positioning member for receiving at least a portion of a semiconductor substrate that has a weakened area therein and a peripheral annular notch located below the weakened area. The positioning member maintains the position of the substrate on a moveable support. A cutting mechanism having at least one blade is provided for contacting the substrate and inducing a cleaving wave therein. The cutting mechanism is operatively associated with the positioning member so that the as at least one blade contacts the annular notch, the positioning member prevents movement of the substrate and the moveable support moves away from the substrate to allow the cleaving wave to both divide the substrate at the notch into first and second parts and detach the layer from the substrate along the weakened area.

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