Patent ID: 8686492
Filing Date: 2014-04-01
Classification: G11C,H01L

Abstract:
1. An electronic device, comprising: a substrate having a semiconducting surface, said semiconducting surface comprising a plurality of fin-type projections with an inverted T -shaped cross-section comprising a proximal base portion and a distal extension portion; a plurality of dielectric layers disposed on said distal extension portion of said plurality of fin-type projections; a plurality of dielectric isolation features arranged between said plurality of fin-type projections and extending over sidewall portions of said proximal base portion and having a height being greater than a height of said proximal base portion of said plurality of fin-type projections, wherein a portion of said plurality of dielectric layers substantially fill a region that extends between a portion of a sidewall of said distal extension portion of said plurality of fin-type projections and a sidewall of said plurality of dielectric isolation features and that extends between said height of said proximal base portion and said height of said plurality of dielectric isolation features; and a plurality of control gate layers disposed on said plurality of dielectric isolation features and other portions of said plurality of dielectric layers.