Abstract:
In an embodiment, a structure includes: a nano-structure; an epitaxial source/drain region adjacent the nano-structure; a gate dielectric wrapped around the nano-structure; a gate electrode over the gate dielectric, the gate electrode having an upper portion and a lower portion, a first width of the upper portion increasing continually in a first direction extending away from a top surface of the nano-structure, a second width of the lower portion being constant along the first direction; and a gate spacer between the gate dielectric and the epitaxial source/drain region.
Abstract:
In an embodiment, a structure includes: a nano-structure; an epitaxial source/drain region adjacent the nano-structure; a gate dielectric wrapped around the nano-structure; a gate electrode over the gate dielectric, the gate electrode having an upper portion and a lower portion, a first width of the upper portion increasing continually in a first direction extending away from a top surface of the nano-structure, a second width of the lower portion being constant along the first direction; and a gate spacer between the gate dielectric and the epitaxial source/drain region.
Abstract:
Presented herein is a device including an insulator layer disposed over a substrate. An adhesion layer is disposed over the insulator layer and includes a semiconductor oxide, the semiconductor oxide includes a compound of a semiconductor element and oxygen. A semiconductor film layer is over the adhesion layer, the semiconductor film layer being a material that includes the semiconductor element, the semiconductor film layer having a different composition than the adhesion layer. Bonds at an interface between the insulator layer and the adhesion layer comprise oxygen-hydrogen bonds and oxygen-semiconductor element bonds. An interface between a dummy gate and a gate dielectric layer of a gate-last transistor structure may be similarly formed.
Abstract:
Presented herein is a method for forming a semiconductor film using an adhesion layer, comprising providing an oxide layer disposed over a substrate, forming at least one adhesion layer over the oxide layer, and forming a film layer over the at least one adhesion layer in a same process step as the forming the at least one adhesion layer. Forming the at least one adhesion layer further comprises at least forming a first adhesion layer over the oxide layer and forming a second adhesion layer over the first adhesion layer. Forming the first adhesion layer comprises providing the terminating gas at a substantially constant first flow rate, and wherein the forming the second adhesion layer comprises ramping a flow rate of the terminating gas to a zero flow rate from the first flow rate.
Abstract:
A semiconductor device includes a semiconductor substrate and a first dielectric layer. The semiconductor substrate includes at least one fin. The first dielectric layer is disposed on the at least one fin. A thickness of the first dielectric layer located on a top surface of the at least one fin is greater than a thickness of the first dielectric layer located on a sidewall of the at least one fin.
Abstract:
Presented herein is a device including an insulator layer disposed over a substrate. An adhesion layer is disposed over the insulator layer and includes a semiconductor oxide, the semiconductor oxide includes a compound of a semiconductor element and oxygen. A semiconductor film layer is over the adhesion layer, the semiconductor film layer being a material that includes the semiconductor element, the semiconductor film layer having a different composition than the adhesion layer. Bonds at an interface between the insulator layer and the adhesion layer comprise oxygen-hydrogen bonds and oxygen-semiconductor element bonds. An interface between a dummy gate and a gate dielectric layer of a gate-last transistor structure may be similarly formed.
Abstract:
A method of forming a nitrogen-containing oxide film is disclosed. The method comprises (a) exposing a substrate to a first gas pulse having one of an oxygen-containing gas and a metal-containing gas; (b) exposing the substrate to a second gas pulse having the other of the oxygen-containing gas and the metal-containing gas to form an oxide film over the substrate; and (c) exposing the oxide film to a third gas pulse having a nitrogen-containing plasma to form a nitrogen-containing oxide film, wherein the nitrogen-containing oxide film has a nitrogen concentration between about 0.1 and about 3 atomic percent (at %).
Abstract:
Resistors and method of forming the same are provided. A device structure according to the present disclosure includes a substrate, a first intermetal dielectric (IMD) layer over the substrate, a resistor that includes a first resistor layer over the first IMD layer, a second resistor layer over the first resistor layer, and a third resistor layer over the second resistor layer, a second IMD layer over the first IMD layer and the resistor, a first contact via extending through the second IMD layer and the third resistor layer and terminating in the first resistor layer, and a second contact via extending through the second IMD layer and the third resistor layer and terminating in the first resistor layer.
Abstract:
Various embodiments of the present disclosure are directed towards an integrated chip including a resistor structure overlying a semiconductor substrate. A dielectric structure overlies the semiconductor substrate. The resistor structure is disposed within the dielectric structure. The resistor structure includes a thin film resistor (TFR) layer and a first capping structure disposed on the TFR layer. A first cavity is disposed within the dielectric structure and abuts a first sidewall of the first capping structure.
Abstract:
A device includes a first channel layer, a second channel layer, a gate structure, a source/drain epitaxial structure, and a source/drain contact. The first channel layer and the second channel layer are arranged above the first channel layer in a spaced apart manner over a substrate. The gate structure surrounds the first and second channel layers. The source/drain epitaxial structure is connected to the first and second channel layers. The source/drain contact is connected to the source/drain epitaxial structure. The second channel layer is closer to the source/drain contact than the first channel layer is to the source/drain contact, and the first channel layer is thicker than the second channel layer.