Patent ID: 7872329
Filing Date: 2011-01-18
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a substrate; a capacitor and an isolation insulating layer provided in the vicinity of a surface of said substrate; wherein said substrate includes: a plurality of first recessed portions provided on a main surface of said substrate; a second recessed portion provided on said main surface of said substrate in a region other than where said first recessed portions are provided; and a third recessed portion provided on a bottom portion of at least one of said plurality of first recessed portions; said second recessed portion and said third recessed portion have generally the same depth; said capacitor is provided over a region including at least one of said first recessed portions and said third recessed portion provided therein, and said isolation insulating layer is provided so as to fill the remaining first recessed portions; and said second recessed portion is filled with at least a portion of a gate electrode.