Patent ID: 8310010
Filing Date: 2012-11-13
Classification: H01L

Abstract:
1. A semiconductor device with an electrostatic discharge protection element having first and second semiconductor regions, which are formed within a substrate area electrically isolated by non-conductive regions extending into the substrate, that form a first pn junction, said device comprising: a first metal layer formed above the electrostatic discharge protection element, the first metal layer being electrically connected to a pad at a position outside of the electrically isolated area; and a plurality of first contacts connecting the first semiconductor region and said first metal layer within the electrically isolated area, wherein said first metal layer has at least one first wiring trace extending in a first direction, in which the first pn junction extends, and a plurality of second wiring traces that intersect said first wiring trace, the first wiring trace and the plurality of second wiring traces having a same lower surface and a same upper surface, and wherein said first contacts are connected to intersection between said first wiring trace and said second wiring traces.