Abstract:
A semiconductor device includes an active region formed in a semiconductor substrate, a gate structure disposed over the active region, source/drain regions formed in the active region in alignment with the gate structure, and a buried insulating material region disposed in the active region under the gate structure. The buried insulating material region is surrounded by the active region and borders a channel region in the active region below the gate structure along a depth of the active region. The source/drain regions have a depth greater than a top surface of the buried insulating material region.
Abstract:
The present disclosure provides, in a first aspect, a semiconductor device, including a semiconductor substrate and a gate structure formed over the semiconductor substrate, wherein the gate structure comprises a fin and a ferroelectric high-k material formed at least over sidewall surfaces of the fin. Herein, a first thickness defined by a thickness of the ferroelectric high-k material formed over sidewalls of the fin is substantially greater than a second thickness defined by a thickness of the ferroelectric high-k material formed over an upper surface of the fin.
Abstract:
Performance and/or uniformity of sophisticated transistors may be enhanced by incorporating a carbon species in the active regions of the transistors prior to forming complex high-k metal gate electrode structures. For example, a carbon species may be incorporated by ion implantation into the active region of a P-channel transistor and an N-channel transistor after selectively forming a threshold adjusted semiconductor material for the P-channel transistor, while the active region of the N-channel transistor is still masked.
Abstract:
The present disclosure provides a method of forming a semiconductor device and a semiconductor device. An SOI substrate portion having a semiconductor layer, a buried insulating material layer and a bulk substrate is provided, wherein the buried insulating material layer is interposed between the semiconductor layer and the bulk substrate. The SOI substrate portion is subsequently patterned so as to form a patterned bi-layer stack on the bulk substrate, which bi-layer stack comprises a patterned semiconductor layer and a patterned buried insulating material layer. The bi-layer stack is further enclosed with a further insulating material layer and an electrode material is formed on and around the further insulating material layer. Herein a gate electrode is formed by the bulk substrate and the electrode material such that the gate electrode substantially surrounds a channel portion formed by a portion of the patterned buried insulating material layer.
Abstract:
Methods for forming a semiconductor device are provided. In one embodiment, a gate structure having a gate insulating layer and a gate electrode structure formed on the gate insulating layer is provided. The methods provide reducing a dimension of the gate electrode structure relative to the gate insulating layer along a direction extending in parallel to a direction connecting the source and drain. A semiconductor device structure having a gate structure including a gate insulating layer and a gate electrode structure formed above the gate insulating layer is provided, wherein a dimension of the gate electrode structure extending along a direction which is substantially parallel to a direction being oriented from source to drain is reduced relative to a dimension of the gate insulating layer. According to some examples, gate structures are provided having a gate silicon length which is decoupled from the channel width induced by the gate structure.
Abstract:
A method of forming a semiconductor device structure includes providing a substrate with a semiconductor-on-insulator (SOI) configuration, the SOI substrate comprising a semiconductor layer formed on a buried oxide (BOX) layer which is disposed on a semiconductor bulk substrate, forming trench isolation structures delineating a first region and a second region within the SOI substrate, removing the semiconductor layer and the BOX layer in the first region for exposing the semiconductor bulk substrate within the first region, forming a first semiconductor device with an electrode in and over the exposed semiconductor bulk substrate in the first region, forming a second semiconductor device in the second region, the second semiconductor device comprising a gate structure disposed over the semiconductor layer and the BOX layer in the second region, and performing a polishing process for defining a common height level to which the electrode and the gate structure substantially extend.
Abstract:
Methods for fabricating integrated circuits are provided. In an embodiment, a method for fabricating an integrated circuit includes providing a structure having an n-channel gate stack and a p-channel gate stack formed over a semiconductor substrate. The method includes forming halo implant regions in the semiconductor substrate adjacent the p-channel gate stack and forming extension implant regions in the semiconductor substrate adjacent the p-channel gate stack. The method further includes annealing the halo implant regions and the extension implant regions in the semiconductor substrate adjacent the p-channel gate stack. Also, the method forms extension implant regions in the semiconductor substrate adjacent the n-channel gate stack.
Abstract:
The present invention relates to a semiconductor structure comprising at least a first and a second three-dimensional transistor, wherein the first transistor and the second transistor are electrically connected in parallel to each other, and wherein each transistor comprises a source and a drain, wherein the source and/or drain of the first transistor is at least partially separated from, respectively, the source and/or drain of the second transistor. The invention further relates to a process for realizing such a semiconductor structure.
Abstract:
A method to implant dopants onto fin-type field-effect-transistor (FINFET) fin surfaces with uniform concentration and depth levels of the dopants and the resulting device are disclosed. Embodiments include a method for pulsing a dopant perpendicular to an upper surface of a substrate, forming an implantation beam pulse; applying an electric or a magnetic field to the implantation beam pulse to effectuate a curvilinear trajectory path of the implantation beam pulse; and implanting the dopant onto a sidewall surface of a target FINFET fin on the upper surface of the substrate via the curvilinear trajectory path of the implantation beam pulse.
Abstract:
The present disclosure provides in one aspect for a semiconductor device structure which may be formed by providing source/drain regions within a semiconductor substrate in alignment with a gate structure formed over the semiconductor substrate, wherein the gate structure has a gate electrode structure, a first sidewall spacer and a second sidewall spacer, the first sidewall spacer covering sidewall surfaces of the gate electrode structure and the sidewall spacer being formed on the first sidewall spacer. Furthermore, forming the semiconductor device structure may include removing the second sidewall spacer so as to expose the first sidewall spacer, forming a third sidewall spacer on a portion of the first sidewall spacer such that the first sidewall spacer is partially exposed, and forming silicide regions in alignment with the third sidewall spacer in the source/drain regions.