Patent ID: 7498232
Filing Date: 2009-03-03
Classification: H01L

Abstract:
1. A method of fabricating a semiconductor device, the method comprising: providing a workpiece having a top surface and a plurality of trenches formed therein; forming a liner over the plurality of trenches and over the top surface of the workpiece; forming a layer of photosensitive material over the liner that fills the plurality of trenches; removing the layer of photosensitive material from over the workpiece except from over at least a portion of each of the plurality of trenches; and partially removing the layer of photosensitive material from over the plurality of trenches leaving a portion of the layer of photosensitive material remaining within a lower portion of the plurality, said portion extending from a bottom of said trenches to a top level in said trenches that is below said top surface of said workpiece and that protects the liner.