Abstract:
Damascene plug and tab patterning with photobuckets for back end of line (BEOL) spacer-based interconnects is described. In an example, a back end of line (BEOL) metallization layer for a semiconductor structure includes an inter-layer dielectric (ILD) layer disposed above a substrate. A plurality of conductive lines is disposed in the ILD layer along a first direction. A conductive tab is disposed in the ILD layer. The conductive tab couples two of the plurality of conductive lines along a second direction orthogonal to the first direction.
Abstract:
Image tone-reversal with a dielectric using bottom-up cross-linking for back end of line (BEOL) interconnects is described. In an example, a semiconductor structure including a metallization layer includes a plurality of trenches in an interlayer dielectric (ILD) layer above a substrate. A pre-catalyst layer is on sidewalls of one or more, but not all, of the plurality of trenches. Cross-linked portions of a dielectric material are proximate the pre-catalyst layer, in the one or more of the plurality of trenches. Conductive structures are in remaining ones of the trenches.
Abstract:
Precursor and process design for photo-assisted metal atomic layer deposition (ALD) and chemical vapor deposition (CVD) is described. In an example, a method of fabricating a thin metal film involves introducing precursor molecules proximate to a surface on or above a substrate, each of the precursor molecules having one or more metal centers surrounded by ligands. The method also involves depositing a metal layer on the surface by dissociating the ligands from the precursor molecules using a photo-assisted process.