Patent ID: 7803642

Claim:
An evaluation method of a semiconductor device, comprising: manufacturing a semiconductor device defined as a sample with a copper electrodeposited film grown on a semiconductor substrate, and growing said copper electrodeposited film on said semiconductor substrate by causing a flow of an electric current having an application pattern which transitions to a state of a first current density in which a per-unit-area current density of a deposition current flowing on said semiconductor substrate is a predetermined current density and to a state of a second current density defined as a current density different from the first current density so that a distribution of an impurity concentration in said grown copper electrodeposited film becomes a desired concentration distribution; analyzing said semiconductor device manufactured and acquiring a distribution of the concentration of the impurity contained in said copper electrodeposited film of said semiconductor device; thermal treating said semiconductor device; analyzing said semiconductor device that the distribution of the impurity concentration changed by said thermal treating, and acquiring a distribution of the concentration of the impurity contained in said copper electrodeposited film of said semiconductor device; and comparing the distribution of the impurity concentration acquired by analyzing said semiconductor device before thermal treating with the distribution of the impurity concentration acquired by analyzing said semiconductor device after thermal treating, and analyzing the impurity diffusion on the occasion of the thermal treatment.