The dynamic behavior of dislocations in highly boron (B)-doped Si crystals
with concentration up to 2.5x10(20) cm(-3) is investigated using the etch p
it technique. Suppression of the generation of dislocations from a surface
scratch is found for B-doped Si and the critical stress for dislocation gen
eration increases with B concentration, which is interpreted in terms of di
slocation locking due to impurity segregation. The velocity of dislocations
in B-doped crystals is revealed to increase by increasing the B concentrat
ion. (C) 2001 American Institute of Physics.