Patent ID: 8551291

Claim:
A debonder apparatus for debonding a temporary bonded wafer pair comprising a first wafer bonded to a second wafer at a bonding interface, said debonder apparatus comprising: a clam-shell shaped reactor comprising first and second isolated chambers; an upper chuck contained within the first chamber and comprising a lower surface protruding into the second chamber and an edge configured to be held in fixed position via clamping means; a lower chuck contained within the second chamber and having an upper surface oriented parallel and opposite to the lower surface of the upper chuck; means for holding an unbonded surface of the first wafer of the temporary bonded wafer pair onto the lower surface of the upper chuck; means for pressurizing the first chamber and wherein said first chamber pressurizing means applies pressure onto an upper surface of the upper chuck while the upper chuck edge is held in fixed position via the clamping means, and thereby causes the lower surface of the upper chuck and the attached wafer pair to bow downward; means for initiating a separation front at a point of the bonding interface of the temporary bonded wafer pair; means for pressurizing the second chamber while the first chamber pressure is reduced thereby causing removal of the downward bowing of the upper chuck and the attached wafer pair and propagation of the separation front through the entire bond interface; and means for holding the unbonded surface of the separated second wafer onto the upper surface of the lower chuck.