The Smart-Cut((R)) process, based on ion implantation (hydrogen, helium) an
d wafer bonding, appears more and more as a generic process. The first part
of the paper is dedicated to the specific case of thermally-induced splitt
ing. Cavity growth by the Ostwald ripening mechanism and crack propagation
are responsible for thermally-induced splitting. In this case, the splittin
g kinetics are controlled by hydrogen diffusion. In the second part, the la
test results concerning new structures are presented.