摘要:
One method disclosed herein includes, among other things, forming a line-end protection layer in an opening on an entirety of each opposing, spaced-apart first and second end face surfaces of first and second spaced-apart gate electrode structures, respectively, and forming a sidewall spacer adjacent opposing sidewall surfaces of each of the gate electrode structures but not adjacent the opposing first and second end face surfaces having the line-end protection layer positioned thereon.
摘要:
Embodiments of the present invention provide a method of forming semiconductor structure. The method includes forming a set of device features on top of a substrate; forming a first dielectric layer directly on top of the set of device features and on top of the substrate, thereby creating a height profile of the first dielectric layer measured from a top surface of the substrate, the height profile being associated with a pattern of an insulating structure that fully surrounds the set of device features; and forming a second dielectric layer in areas that are defined by the pattern to create the insulating structure. A structure formed by the method is also disclosed.
摘要:
Integrated circuits and methods for fabricating integrated circuits are provided. In an exemplary embodiment, a method for fabricating integrated circuits includes providing a sacrificial gate structure over a semiconductor substrate. The sacrificial gate structure includes two spacers and sacrificial gate material between the two spacers. The method recesses a portion of the sacrificial gate material between the two spacers. Upper regions of the two spacers are etched while using the sacrificial gate material as a mask. The method includes removing a remaining portion of the sacrificial gate material and exposing lower regions of the two spacers. A first metal is deposited between the lower regions of the two spacers. A second metal is deposited between the upper regions of the two spacers.
摘要:
Disclosed herein are illustrative methods and devices that involve forming spacers with internally trimmed internal surfaces to increase the width of the upper portions of a gate cavity. In some embodiments, the internal surface of the spacer has a stepped cross-sectional configuration or a tapered cross-sectional configuration. In one example, a device is disclosed wherein the P-type work function metal for a PMOS device is positioned only within the lateral space defined by the untrimmed internal surfaces of the spacers, while the work function adjusting metal for the NMOS device is positioned laterally between the lateral spaces defined by both the trimmed and untrimmed internal surfaces of the sidewall spacers.
摘要:
Disclosed herein are illustrative methods and devices that involve forming spacers with internally trimmed internal surfaces to increase the width of the upper portions of a gate cavity. In some embodiments, the internal surface of the spacer has a stepped cross-sectional configuration or a tapered cross-sectional configuration. In one example, a device is disclosed wherein the P-type work function metal for a PMOS device is positioned only within the lateral space defined by the untrimmed internal surfaces of the spacers, while the work function adjusting metal for the NMOS device is positioned laterally between the lateral spaces defined by both the trimmed and untrimmed internal surfaces of the sidewall spacers.
摘要:
Embodiments of the invention provide approaches for forming gate and source/drain (S/D) contacts. Specifically, the semiconductor device includes a gate transistor formed over a substrate, a S/D contact formed over a trench-silicide (TS) layer and positioned adjacent the gate transistor, and a gate contact formed over the gate transistor, wherein at least a portion of the gate contact is aligned over the TS layer. This structure enables contact with the TS layer, thereby decreasing the distance between the gate contact and the source/drain, which is desirable for ultra-area-scaling.
摘要:
A diode for integration with finFET devices is disclosed. An in-situ doped epitaxial silicon region is grown on the cathode or anode of the diode to increase the surface area of the junction and overall silicon volume for improved heat dissipation during an ESD event.
摘要:
A dielectric metal compound liner can be deposited on a semiconductor fin prior to formation of a disposable gate structure. The dielectric metal compound liner protects the semiconductor fin during the pattering of the disposable gate structure and a gate spacer. The dielectric metal compound liner can be removed prior to formation of source and drain regions and a replacement gate structure. Alternately, a dielectric metal compound liner can be deposited on a semiconductor fin and a gate stack, and can be removed after formation of a gate spacer. Further, a dielectric metal compound liner can be deposited on a semiconductor fin and a disposable gate structure, and can be removed after formation of a gate spacer and removal of the disposable gate structure. The dielectric metal compound liner can protect the semiconductor fin during formation of the gate spacer in each embodiment.
摘要:
A transistor device includes a gate structure positioned above a semiconductor substrate and spaced-apart sidewall spacers positioned above the substrate and adjacent sidewalls of the gate structure, wherein an internal sidewall surface of each of the spaced-apart sidewall spacers has a stepped cross-sectional configuration
摘要:
Integrated circuits and methods of forming integrated circuits are provided. An integrated circuit includes a gate electrode structure overlying a base substrate. The gate electrode structure includes a gate electrode, with a cap disposed over the gate electrode and sidewall spacers disposed adjacent to sidewalls of the gate electrode structure. A source and drain region are formed in the base substrate aligned with the gate electrode structure. A first dielectric layer is disposed adjacent to the sidewall spacers. The sidewall spacers and the cap have recessed surfaces below a top surface of the first dielectric layer, and a protecting layer is disposed over the recessed surfaces. A second dielectric layer is disposed over the first dielectric layer and the protecting layer. Electrical interconnects are disposed through the first dielectric layer and the second dielectric layer, and the electrical interconnects are in electrical communication with the respective source and drain regions.