We have identified the kinetics and thermodynamics constraints that determine the gettering efficiency of Pt in crystalline Si at sites as diverse as P-doped regions, cavities and ion-impantation damage. These results have been used to achieve a precise and uniform lifetime control by Pt doping in various silicon power devices avoiding the inhomogeneities associated with partial Pt gettering at the heavely doped regions and/or residual defects of the device structure.
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