Abstract:
Methods of forming non-mandrel cuts. A dielectric layer is formed on a metal hardmask layer, and a patterned sacrificial layer is formed on the dielectric layer. The dielectric layer is etched to form a non-mandrel cut in the dielectric layer that is vertically aligned with the opening in the patterned sacrificial layer. A metal layer is formed on an area of the metal hardmask layer exposed by the non-mandrel cut in the dielectric layer. The metal hardmask layer is patterned with the metal layer masking the metal hardmask layer over the area.
Abstract:
Methods are provided for fabricating integrated circuits. In accordance with one embodiment, the method includes forming a portion of a semiconductor substrate at least partially bounded by a confinement isolation material. A liner dielectric is formed overlying the confinement isolation material and is treated to passivate a surface thereof. An epitaxial layer of semiconductor material is then grown overlying the portion of semiconductor substrate.
Abstract:
Methods are provided for fabricating integrated circuits. In accordance with one embodiment, the method includes forming a portion of a semiconductor substrate at least partially bounded by a confinement isolation material. A liner dielectric is formed overlying the confinement isolation material and is treated to passivate a surface thereof An epitaxial layer of semiconductor material is then grown overlying the portion of semiconductor substrate.
Abstract:
One method includes performing an etching process to define a gate cavity that exposes an upper surface and at least a portion of the sidewalls of a gate structure and forming a replacement spacer structure adjacent the exposed sidewalls of the gate structure, wherein the replacement spacer structure exposes a portion of the upper surface of the gate structure and includes at least one air space. In this example, the method also includes forming a conformal etch stop layer and a replacement gate cap structure in the gate cavity, selectively removing a portion of the replacement gate cap structure and a portion of the conformal etch stop layer so as to thereby expose the upper surface of the gate structure, and forming a conductive gate contact structure (CB) in the conductive gate contact opening, wherein the entire conductive gate contact structure (CB) is positioned vertically above the active region.
Abstract:
Methods of forming non-mandrel cuts. A dielectric layer is formed on a metal hardmask layer, and a patterned sacrificial layer is formed on the dielectric layer. The dielectric layer is etched to form a non-mandrel cut in the dielectric layer that is vertically aligned with the opening in the patterned sacrificial layer. A metal layer is formed on an area of the metal hardmask layer exposed by the non-mandrel cut in the dielectric layer. The metal hardmask layer is patterned with the metal layer masking the metal hardmask layer over the area.
Abstract:
One method includes performing an etching process to define a gate cavity that exposes an upper surface and at least a portion of the sidewalls of a gate structure and forming a replacement spacer structure adjacent the exposed sidewalls of the gate structure, wherein the replacement spacer structure exposes a portion of the upper surface of the gate structure and includes at least one air space. In this example, the method also includes forming a conformal etch stop layer and a replacement gate cap structure in the gate cavity, selectively removing a portion of the replacement gate cap structure and a portion of the conformal etch stop layer so as to thereby expose the upper surface of the gate structure, and forming a conductive gate contact structure (CB) in the conductive gate contact opening, wherein the entire conductive gate contact structure (CB) is positioned vertically above the active region.