Patent ID: 8941156
Filing Date: 2015-01-27
Classification: H01L

Abstract:
1. A method comprising: forming a set of device features on top of a substrate, said set of device features including at least a first group of device features and a second group of device features; forming a first dielectric layer directly on top of said set of device features and on top of said substrate, thereby creating a height profile of said first dielectric layer measured from a top surface of said substrate, said height profile being associated with and creating a pattern of an insulating structure that fully surrounds said set of device features, said pattern of said insulating structure separating said first group of device features from said second group of device features in two enclosures; and forming a second dielectric layer in areas that are defined by said pattern to create said insulating structure, wherein forming said first dielectric layer comprises depositing a conformal dielectric layer on top of said first group and said second group of device features, said conformal dielectric layer having a thickness that is sufficiently thick to fill up any gap between any two neighboring said device features either within said first group or within said second group.