Patent ID: 7781294

Claim:
A method for producing an integrated circuit including a semiconductor, comprising: providing an underlying semiconductor substrate having a front side and a rear side; producing crystal defects by irradiation via the front side or via the rear side as entrance surface for the radiation in a material of the semiconductor substrate, including producing an inhomogeneous crystal defect density measured from the front side to the rear side of the semiconductor substrate, and establishing a corresponding inhomogeneous distribution of the carrier lifetime by way of the crystal defects as condensation nuclei, measured from the front side to the rear side of the semiconduct substrate; measuring a proportion of the ion current from the implantation process which is absorbed in the semiconductor substrate by using a first measuring device; measuring a proportion of the ion current from the implantation process which is transmitted through the semiconductor substrate by using a second measuring device; and setting and adapting the implantation energy to a vertical thickness of the semiconductor substrate by using a determination and evaluating the ratio of a transmitted proportion of the ion current from the implantation process to an absorbed proportion of the ion current from the implantation process.