Patent ID: 9299772
Filing Date: 2016-03-29
CPC Classification: H01L

Claim Text:
1. A semiconductor device including a substrate, a transistor formed in the substrate, a first region formed in the substrate and including a drain region of the transistor, a field insulation film formed in the substrate and surrounding the first region in a plan view, a second region formed in the substrate, situated outside the first region by way of the field insulation film in the plan view and including a source region of the transistor, and a metal interconnect situated over the field insulation film, wherein the metal interconnect is formed of a metal having an electric resistivity at 25° C. of 40 μΩ·cm or more and 200 μΩ·cm or less, and repeatedly provided while being turned back or spirally in the direction along the edges of the first region, electrically connected at the innermost circumference with the drain region, and electrically connected at the outermost circumference with the source region or a ground potential.