Patent ID: 8603593

Claim:
A method for providing a hard bias structure comprising: providing a seed layer for a hard bias layer, the seed layer having a seed layer lattice constant and a natural growth texture; depositing the hard bias layer for the hard bias structure on the seed layer, the natural growth texture corresponding to a texture for the hard bias layer, the hard bias layer having a bulk lattice constant; wherein the step of providing the seed layer includes forming a first plasma of a first deposition gas configured to expand the seed layer lattice constant if the bulk lattice constant is greater than the seed layer constant; and wherein the step of depositing the hard bias layer further includes forming a second plasma of a second deposition gas configured to expand the bulk lattice constant if the seed layer lattice constant is greater than the bulk lattice constant; wherein the first deposition gas is lighter than the second deposition gas if the bulk lattice constant is greater than the seed layer lattice constant and wherein the second deposition gas is lighter than the first deposition gas if the seed layer lattice constant is greater than the bulk lattice constant.