Patent ID: 6600176
Filing Date: 2003-07-29
Classification: H01L

Abstract:
A semiconductor device comprising:a metal oxide semiconductor (MOS) transistor having a gate dielectric film, a gate electrode formed on said gate dielectric film, and source/drain regions formed in a semiconductor substrate of a first conductivity type; a protective element having a comb-like protective electrode overlaying said semiconductor substrate with an intervention of a dielectric film, and a plurality of diffused regions, at least one diffused region being adjacent to said protective electrode, wherein said comb-like protective electrode comprises a plurality of linear elements each having a uniform shape and is connected to said gate electrode of said MOS transistor, and wherein said plurality of diffused regions comprises: a first diffused region having a second conductivity-type adjacent to said protective electrode; and a second diffused region having a first conductivity-type; and a conductive element which connects said first diffused region and said second diffused region.