Patent ID: 7302378

Claim:
An electrostatic discharge (ESD) protection device modeling method of modeling an electrical characteristic of an electrostatic discharge (ESD) protection device for simulating a circuit that includes said ESD protection device, comprising the steps of: forming an impurity profile representing a density distribution of an impurity in the ESD protection device with a secondary ion mass analysis method; using the impurity profile to determine a parameter of at least one specific element; setting the parameter of at least the one specific element that affects said electrical characteristic of said ESD protection device, said specific element including at least one selected from the group consisting of a source-drain diffusion layer density, a pocket implantation, a source-drain diffusion depth, a gate-source-drain overlap length, a saliside block length, an impact ionization coefficient, a source-drain resistance, and a substrate resistance; and modeling said electrical characteristic of said ESD protection device with said parameter of said specific element.