Abstract:
A method of forming air gaps between adjacent raised features on a substrate includes forming a carbon-containing material in a bottom region between the adjacent raised features using a flowable deposition process. The method also includes forming a silicon-containing film over the carbon-containing material using a flowable deposition process, where the silicon-containing film fills an upper region between the adjacent raised features and extends over the adjacent raised features. The method also includes curing the carbon-containing material and the silicon-containing material at an elevated temperature for a period of time to form the air gaps between the adjacent raised features.
Abstract:
An interconnect structure is provided that includes at least one patterned and cured photo- patternable low k material located on a surface of a patterned and cured oxygen-doped SiC antireflective coating (ARC). A conductively filled region is located within the at least one patterned and cured photo-patternable low k material and the patterned and cured oxygen- doped SiC ARC. The oxygen-doped SiC ARC, which is a thin layer (i.e., less than 400 angstroms), does not produce standing waves that may degrade the diffusion barrier and the electrically conductive feature that are embedded within the patterned and cured photo- patternable low k dielectric material and, as such, structural integrity is maintained. Furthermore, since a thin oxygen-doped SiC ARC is employed, the plasma etch process time used to open the material stack of the ARC/dielectric cap can be reduced, thus reducing potential plasma damage to the patterned and cured photo-patternable low k material. Also, the oxygen-doped SiC ARC can withstand current BEOL processing conditions.
Abstract:
A method for depositing a silicon nitride based dielectric layer is provided. The method includes introducing a silicon precursor and a radical nitrogen precursor to a deposition chamber. The silicon precursor has a N-Si-H bond, N-Si-Si bond and/or Si-Si-H bond. The radical nitrogen precursor is substantially free from included oxygen. The radical nitrogen precursor is generated outside the deposition chamber. The silicon precursor and the radical nitrogen precursor interact to form the silicon nitride based dielectric layer.
Abstract:
The present invention concerns a method of making a porous material comprising the following steps in the order a-b-c-d: (a) reacting at least one organosilane (A) with water in the presence of a solvent (C) to form a polymeric material, (b) subjecting said polymeric material to a first heat treatment, (c) bringing said polymeric material into contact with at least one dehydroxylation agent (D), (d) subjecting said polymeric material to electromagnetic radiation and/or to a further heat treatment. The present invention furthermore concerns the porous material obtainable by the inventive method, semiconductor devices and electronic components comprising said porous material, and the use of said material for electrical insulation and in microelectronic devices, membranes, displays and sensors.