Patent ID: 7323745

Claim:
A mosgated device comprising: a silicon chip having top and bottom parallel surfaces and including: a drain region adjacent to said top surface; a channel region under said drain region; and a source region under said channel region; said mosgated device having a drain electrode facing a first direction and a source electrode facing a second direction opposite said first direction, said drain electrode being disposed on said top surface and covering a full surface of said drain region exposed at said top surface, and said source electrode being disposed on said bottom surface, a plurality of parallel trenches formed in said top surface; a first group of said trenches each containing a mosgate electrode having a silicide layer atop thereof to reduce lateral resistance, and extending along said channel region to enable and prevent conduction between said drain and source electrodes, a second group of parallel trenches; each of said second group of trenches having a silicide layer at the bottom thereof which connects said channel region and said source region; and an implant region of the same conductivity as, and doped to a greater concentration than, said source region under each silicide layer.