Stacked via pillars, such as metal via pillars, are provided at different
and designated locations in IC chips to support the chip structure during
processing and any related processing stresses such as thermal and
mechanical stresses. These stacked via pillars connect and extend from a
base substrate of the strip to a top oxide cap of the chip. The primary
purpose of the stacked via pillars is to hold the chip structure together
to accommodate any radial deformations and also to relieve any stress,
thermal and/or mechanical, build-up during processing or reliability
testing. The stacked via pillars are generally not electrically connected
to any active lines or vias, however in some embodiments the stacked via
pillars can provide an additional function of providing an electrical
connection in the chip.