Kinematical Simulation of HOLZ Pattern for 110 Uniaxial Strain Determination

摘要

Strained silicon induced by the CMOS device process has been considered an important technology for improving the performance of MOSFETs by increasing local carrier mobility in the current channel. In order to evaluate the feasibility of using convergent beam electron diffraction (CBED) in lattice strain determination, high-order Laue zone (HOLZ) lines inside the center disc of a CBED pattern with specific zone axes were kinematically simulated. The intersecting HOLZ lines shift was plotted against the lattice parameter for the determination of uniaxial strain.