Suppression of oxidation-induced stacking faults and microdefects in a Si wafer, subjected to bending during thermal oxidation, was studied. Straight dislocations were introduced only at the neutral plane in Si bulk, during bending in a furnace and retained as sinks through all subsequent high-temperature processings, thereby continuing to suppress the formation of oxidation-induced stacking faults and microdefects. Gettering while applying bending stress to the wafer is described, including the formation mechanism for dislocations at the neutral region.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)