Patent ID: 7045859

Claim:
A power semiconductor device comprising: a semiconductor die, said semiconductor die including a drift region of a first conductivity type; a channel region of a second conductivity type over said drift region; a plurality of trenches extending to a depth below said channel region; gate insulation formed on sidewalls of each trench; a gate electrode disposed inside each trench; a silicide body formed over each gate electrode; an oxide plug comprised of TEOS formed over each silicide body; conductive regions of said first conductivity each formed adjacent a respective trench, each conductive region being overlapped entirely by a respective gate electrode; and a first contact formed over said die and in electrical contact with each one of said conductive regions of said first conductivity, wherein no other insulation is disposed between said oxide plug and said silicide body and said oxide plug extends over said suicide body and at least a portion of said each one of said conductive regions.