Abstract:
Integrated circuits having resistor structures formed from gate metal and methods for fabricating such integrated circuits are provided. In an embodiment, a method for fabricating an integrated circuit includes providing a semiconductor substrate with a resistor area and a transistor area. The method deposits a gate metal over the resistor area and the transistor area of the semiconductor substrate, and the gate metal forms a gate metal layer in the resistor area. The method includes etching the gate metal to form a resistor structure from the gate metal layer in the resistor area. Further, the method includes forming contacts to the resistor structure in the resistor area.
Abstract:
Methods for forming gates without spacers and the resulting devices are disclosed. Embodiments may include forming a channel layer on a substrate; forming a dummy gate on the channel layer; forming an interlayer dielectric (ILD) on the channel layer and surrounding the dummy gate; forming a trench within the ILD and the channel layer by removing the dummy gate and the channel layer below the dummy gate; forming an un-doped channel region at the bottom of the trench; and forming a gate above the un-doped channel region within the trench.
Abstract:
A semiconductor device includes a semiconductor material positioned above a substrate and a gate structure positioned above a surface of the semiconductor material, the gate structure covering a non-planar surface portion of the surface. A sidewall spacer is positioned adjacent to the gate structure and includes first dopants having one of an N-type and a P-type conductivity, wherein the sidewall spacer covers an entire sidewall surface of the gate structure and partially covers the surface of the semiconductor material. Source/drain extension regions that include the first dopants are positioned within the non-planar surface portion and in alignment with the sidewall spacer, wherein a concentration of the first dopants within a portion of the sidewall spacer proximate the non-planar surface portion substantially corresponds to a concentration of the first dopants within the source/drain extension regions proximate the non-planar surface portion.
Abstract:
The present disclosure provides a method of forming a semiconductor device structure with selectively fabricating semiconductor device structures having fully silicided (FuSi) gates and partially silicided gates. In aspects of the present disclosure, a semiconductor device structure with a first semiconductor device and a second semiconductor device is provided, wherein each of the first and second semiconductor devices includes a gate structure over an active region, each of the gate structures having a gate electrode material and a gate dielectric material. The gate electrode material of the first semiconductor device is recessed, resulting in a recessed first gate electrode material which is fully silicided during a subsequent silicidation process. On the gate electrode material of the second semiconductor device, a silicide portion is formed during the silicidation process.
Abstract:
A semiconductor product with certain devices having a first device with a fully silicided (FuSi) gate and a second device with a partially silicided gate is disclosed. In one example, the first semiconductor device is recessed, resulting in a recessed first gate electrode material which is fully silicided during a subsequent silicidation process. On the gate electrode material of the second semiconductor device, a silicide portion is formed above a layer of polysilicon or amorphous silicon during the silicidation process.
Abstract:
Integrated circuits having resistor structures formed from gate metal and methods for fabricating such integrated circuits are provided. In an embodiment, a method for fabricating an integrated circuit includes providing a semiconductor substrate with a resistor area and a transistor area. The method deposits a gate metal over the resistor area and the transistor area of the semiconductor substrate, and the gate metal forms a gate metal layer in the resistor area. The method includes etching the gate metal to form a resistor structure from the gate metal layer in the resistor area. Further, the method includes forming contacts to the resistor structure in the resistor area.
Abstract:
A semiconductor device includes a semiconductor material positioned above a substrate and a gate structure positioned above a surface of the semiconductor material, the gate structure covering a non-planar surface portion of the surface. A sidewall spacer is positioned adjacent to the gate structure and includes first dopants having one of an N-type and a P-type conductivity, wherein the sidewall spacer covers an entire sidewall surface of the gate structure and partially covers the surface of the semiconductor material. Source/drain extension regions that include the first dopants are positioned within the non-planar surface portion and in alignment with the sidewall spacer, wherein a concentration of the first dopants within a portion of the sidewall spacer proximate the non-planar surface portion substantially corresponds to a concentration of the first dopants within the source/drain extension regions proximate the non-planar surface portion.
Abstract:
The present disclosure provides a method of forming a semiconductor device structure with selectively fabricating semiconductor device structures having fully silicided (FuSi) gates and partially silicided gates. In aspects of the present disclosure, a semiconductor device structure with a first semiconductor device and a second semiconductor device is provided, wherein each of the first and second semiconductor devices includes a gate structure over an active region, each of the gate structures having a gate electrode material and a gate dielectric material. The gate electrode material of the first semiconductor device is recessed, resulting in a recessed first gate electrode material which is fully silicided during a subsequent silicidation process. On the gate electrode material of the second semiconductor device, a silicide portion is formed during the silicidation process.
Abstract:
Integrated circuits having improved contacts and improved methods for fabricating integrated circuits having contacts are provided. In an embodiment, a method for fabricating an integrated circuit includes providing a semiconductor substrate with a source/drain region. The method deposits an interlayer dielectric material over the semiconductor substrate. Further, the method etches the interlayer dielectric material to form a hole defining an exposed portion of the source/drain region. The method includes forming a contact forming a contact in the hole over the exposed portion of the source/drain region and forming an interconnect in the hole over the contact.