Integrated circuit device and electrostatic discharge protection device thereof

An electrostatic discharge (ESD) protection device of an integrated circuit (IC), wherein the IC has a substrate, a core and a power mesh, wherein the power mesh has at least one power electrode, a grounding electrode and a seal ring, the core is formed on the substrate and is located inside the grounding electrode, and the power mesh is located between the grounding electrode and the seal ring, the ESD protection device comprising:

• multiple discharging units formed on the substrate to correspond to a portion of the substrate covered by the power mesh, each discharging unit electrically connected between a corresponding power electrode and the grounding electrode or between a corresponding power electrode and the seal ring;
• multiple switch triggering units, each switch triggering unit electrically connected between a corresponding power electrode and the grounding electrode or between a corresponding power electrode and the seal ring to detect occurrence of static electricity;
• and
• multiple switching units, each switching unit electrically connected between a corresponding power electrode and the grounding electrode, and electrically connected between a corresponding switch triggering unit and a corresponding discharging unit for the corresponding switch triggering unit to turn on the corresponding discharging unit upon detecting occurrence of static electricity.