A method for implementing a desired offset in device characteristics of an
integrated circuit includes forming a first device of a first
conductivity type on a first portion of a substrate having a first
crystal lattice orientation, and forming a second device of the first
conductivity type on a second portion of the substrate having a second
crystal lattice orientation. The carrier mobility of the first device
formed on the first crystal lattice orientation is greater than the
carrier mobility of the second device formed on the second crystal
lattice orientation.