Patent ID: 7572699
Filing Date: 2009-08-11
Classification: H01L

Abstract:
1. A process of forming an electronic device comprising: forming a first trench and a second trench within a substrate, wherein a portion of the substrate lies between the first trench and the second trench, and has a width of no more than approximately 90 nm; forming discontinuous storage elements within the first trench and the second trench; forming a first gate electrode within the first trench and a second gate electrode within the second trench; removing a portion of the discontinuous storage elements to form a first set of discontinuous storage elements and a second set of discontinuous storage elements, wherein the first set of the discontinuous storage elements lies between the first gate electrode and the portion of the substrate, and the second set of the discontinuous storage elements lies between the second gate electrode and the portion of the substrate; and forming a doped region within an uppermost part of the portion of the substrate that lies between the first and second trenches, wherein in a finished device, the doped region electrically floats.