A hydrogen (H) exfoliation gettering method is provided for attaching
fabricated circuits to receiver substrates. The method comprises:
providing a Si substrate; forming a Si active layer overlying the
substrate with circuit source/drain (S/D) regions; implanting a p-dopant
into the S/D regions; forming gettering regions underling the S/D
regions; implanting H in the Si substrate, forming a cleaving plane (peak
concentration (Rp) H layer) in the Si substrate about as deep as the
gettering regions; bonding the circuit to a receiver substrate; cleaving
the Si substrate along the cleaving plane; and binding the implanted H
underlying the S/D regions with p-dopant in the gettering regions, as a
result of post-bond annealing.