Patent ID: 6927451
Filing Date: 2005-08-09
Classification: H01L

Abstract:
1. A semiconductor die comprising a trench MIS device, said die comprising a first layer of a first conductivity type and a second layer of a second conductivity type overlying said first layer, said die comprising a termination region comprising: a half-trench formed in said second layer adjacent an edge of said die; a region of said first conductivity type extending from a bottom of said half-trench to said first layer, an insulating layer extending from said bottom of said half-trench, up a wall of said half-trench and over a surface of said second layer; and a source metal layer over said insulating layer, said source metal layer extending from a location within said half-trench and over a surface of said second layer, said source metal layer being in electrical contact with a source region of said MIS device, an edge of said source metal layer in said half-trench being laterally spaced from said edge of said die.