Patent ID: 6064095
Filing Date: 2000-05-16
Classification: H01L

Abstract:
An electrostatic discharge (ESD) protection device formed on a first type semiconductor substrate, comprising:a gate having a continuous structure located above the first type semiconductor substrate;a common source region in the first type semiconductor substrate located on one side of the gate;a plurality of drain regions in the first type semiconductor substrate located on the other side of the gate just opposite the common source region, wherein each of the drain regions is electrically isolated from each other and has separated connection to the gate;a plurality of contacts distributed over the common source region and the drain regions; anda plurality of separated metal runners electrically connected to the drain regions, respectively, wherein anyone of the metal runners is melted away when an over-high ESD current flows through one of the metal runners into a corresponding one of the drain regions, resulting in a disconnection from the over-high ESD current.