Abstract:
A gate structure of a negative capacitance field effect transistor (NCFET) is disclosed. The NCFET includes a gate stack disposed over a substrate. The gate stack includes a dielectric material layer, a ferroelectric ZrO2 layer and a first conductive layer. The NCFET also includes a source/drain feature disposed in the substrate adjacent the gate stack.
Abstract:
A semiconductor device includes a semiconductor substrate, an epitaxy structure present in the semiconductor substrate, and a silicide present on a textured surface of the epitaxy structure. A plurality of sputter ions are present between the silicide and the epitaxy structure. Since the surface of the epitaxy structure is textured, the contact area provided by the silicide is increased accordingly, thus the resistance of a interconnection structure in the semiconductor device is reduced.
Abstract:
A method and structure for providing a GAA device. In some embodiments, a substrate including an insulating layer disposed thereon is provided. By way of example, a first metal portion is formed within the insulating layer. In various embodiments, a first lateral surface of the first metal portion is exposed. After exposure of the first lateral surface of the first metal portion, a first graphene layer is formed on the exposed first lateral surface. In some embodiments, the first graphene layer defines a first vertical plane parallel to the exposed first lateral surface. Thereafter, in some embodiments, a first nanobar is formed on the first graphene layer, where the first nanobar extends in a first direction normal to the first vertical plane defined by the first graphene layer.
Abstract:
A FinFET device includes a substrate, a fin formed on the substrate, and a gate electrode crossing the fin. The gate electrode includes a head portion and a tail portion, and the tail portion is connected to the head portion and extended toward the substrate. The width of the head portion is greater than that of the tail portion.
Abstract:
A field effect transistor (FET) includes a gate dielectric layer, a two-dimensional (2D) channel layer formed on the gate dielectric layer and a gate electrode. The 2D channel layer includes a body region having a first side and a second side opposite to the first side, the body region being a channel of the FET. The 2D channel layer further includes first finger regions each protruding from the first side of the body region and second finger regions each protruding from the second side of the body region. A source electrode covers the first finger regions, and a drain electrode covers the second finger regions.
Abstract:
In a method of fabricating a field effect transistor, a fin structure made of a first semiconductor material is formed so that the fin structure protrudes from an isolation insulating layer disposed over a substrate. A gate structure is formed over a part of the fin structure, thereby defining a channel region, a source region and a drain region in the fin structure. After the gate structure is formed, laser annealing is performed on the fin structure.
Abstract:
Some embodiments of the present disclosure relate to an integrated chip having a vertical transistor device. The integrated chip may have a semiconductor body with a trench extending along first sides of a source region, a channel region over the source region, and a drain region over the channel region. A gate electrode is arranged along a first sidewall of the trench, and a metal contact is arranged on the drain region. An isolation dielectric material is disposed within the trench. The isolation dielectric material is vertically over a top surface of the gate electrode and is laterally adjacent to the gate electrode.
Abstract:
A semiconductor device includes a FinFET component, a plurality of patterned dummy semiconductor fins arranged aside a plurality of fins of the FinFET component, an isolation structure formed on the patterned dummy semiconductor fins, and a tuning component formed on the patterned dummy semiconductor fins and electrically connected to the FinFET component. A height of the patterned dummy semiconductor fins is shorter than that of the fins of the FinFET component.
Abstract:
A semiconductor device structure is provided. The semiconductor device structure includes a substrate. The semiconductor device structure includes a semiconductor layer over the substrate. The semiconductor layer includes a transition metal chalcogenide. The semiconductor device structure includes a source electrode and a drain electrode over and connected to the semiconductor layer and spaced apart from each other by a gap. The source electrode and the drain electrode are made of graphene.
Abstract:
Some embodiments of the present disclosure relate to a memory array comprising memory cells having vertical gate-all-around (GAA) selection transistors. In some embodiments, the memory array has a source region disposed within an upper surface of a semiconductor body, and a semiconductor pillar of semiconductor material extending outward from the upper surface of the semiconductor body and having a channel region and an overlying drain region. A gate region vertically overlies the source region at a position laterally separated from sidewalls of the channel region by a gate dielectric layer. A first metal contact couples the drain region to a data storage element that stores data. The vertical GAA selection transistors provide for good performance, while decreasing the size of the selection transistor relative to a planar MOSFET, so that the selection transistors do not negatively impact the size of the memory array.