Patent ID: 8158451

Claim:
A method for manufacturing a junction with a controlled dopant profile, the method comprising: forming a first semiconductor material doped with a first dopant; then depositing directly on the first semiconductor material by Atomic Layer Epitaxy or Vapor Phase Doping at least a fraction of a monolayer of a precursor for a second dopant different than the first dopant, the deposition of the precursor for the second dopant being performed without concomitant deposition of a semiconductor material; then forming a second semiconductor material doped with the second dopant on the precursor of the second dopant and the first semiconductor material, then performing a rapid thermal treatment performed after the formation of the second semiconductor material doped with the second dopant, thereby forming a junction between the first semiconductor material and the second semiconductor material, wherein the amount of precursor for the second dopant deposited in the deposition step is selected such that the concentration of the second dopant in the second semiconductor material is higher at the junction between the first semiconductor material and the second semiconductor material than it is in the bulk second semiconductor material.