Patent ID: 7968404
Filing Date: 2011-06-28
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate; a plurality of bit lines formed in first regions of the semiconductor substrate; an ONO film provided at a plurality of locations on the semiconductor substrate and centered above second regions of the semiconductor substrate, each of the second regions located between adjacent ones of the first regions; a plurality of word lines formed over portions of the ONO film; and one or more contacts provided on each of the plurality of bit lines and connected to the plurality of bit lines only in bit line connecting regions defined between selected pairs of adjacent ones of the plurality of word lines, the semiconductor substrate having trench isolation regions formed therein and provided only within the bit line connecting regions, the trench isolation regions provided at both sides of each of the plurality of bit lines within the bit line connecting regions and located adjacent to each of the one or more contacts, the one or more contacts interposed between the adjacent ones of the selected pairs of adjacent ones of the plurality of word lines, wherein the trench isolation regions are only provided between the contacts in each of the bit line connecting regions.