A semiconductor structure and method for chip dicing. The method includes
(a) providing a semiconductor substrate and (b) forming first and second
device regions in and at top of the substrate. The first and second
device regions are separated by a semiconductor border region of the
substrate. The method further includes (c) forming N interconnect layers,
in turn, directly above the semiconductor border region and the first and
second device regions. N is a positive integer greater than one. Each of
the N interconnect layers includes an etchable portion directly above the
semiconductor border region. The etchable portions of the N interconnect
layers form a continuous etchable block directly above the semiconductor
border region. The method further includes (d) removing the continuous
etchable block by etching, and (e) cutting with a laser through the
semiconductor border region via an empty space of the removed continuous
etchable block.