Abstract:
A device includes an isolation region that defines an active region in a semiconducting substrate and a gate structure, wherein the gate structure has an axial length in a long axis direction thereof such that a first portion of the gate structure is positioned above the active region and a second portion of the gate structure is positioned above the isolation region. Additionally, a gate cap layer is positioned above the gate structure, wherein a first portion of the gate cap layer that is positioned above the first portion of the gate structure is thicker than a second portion of the gate cap layer that is positioned above the second portion of the gate structure.
Abstract:
An integrated circuit transistor is formed on a substrate. A trench in the substrate is at least partially filled with a metal material to form a source (or drain) contact buried in the substrate. The substrate further includes a source (or drain) region in the substrate which is in electrical connection with the source (or drain) contact. The substrate further includes a channel region adjacent to the source (or drain) region. A gate dielectric is provided on top of the channel region and a gate electrode is provided on top of the gate dielectric. The substrate may be of the silicon on insulator (SOI) or bulk type. The buried source (or drain) contact makes electrical connection to a side of the source (or drain) region using a junction provided at a same level of the substrate as the source (or drain) and channel regions.
Abstract:
An integrated circuit transistor is formed on a substrate. A trench in the substrate is at least partially filed with a metal material to form a source (or drain) contact buried in the substrate. The substrate further includes a source (or drain) region in the substrate which is in electrical connection with the source (or drain) contact. The substrate further includes a channel region adjacent to the source (or drain) region. A gate dielectric is provided on top of the channel region and a gate electrode is provided on top of the gate dielectric. The substrate may be of the silicon on insulator (SOI) or bulk type. The buried source (or drain) contact makes electrical connection to a side of the source (or drain) region using a junction provided at a same level of the substrate as the source (or drain) and channel regions.
Abstract:
A device includes a first epi semiconductor material positioned in a source/drain region of the device, the first epi semiconductor material having a first lateral width at an upper surface thereof. An extended-height epi contact structure having an upper surface and first and second side surfaces is positioned on the first epi semiconductor material, the upper surface and the first and second side surfaces collectively defining a contact length of the extended-height epi contact structure that is greater than the first lateral width. A metal silicide region is positioned on the upper surface and the first and second side surfaces of the extended-height epi contact structure.
Abstract:
An integrated circuit transistor is formed on a substrate. A trench in the substrate is at least partially filled with a metal material to form a source (or drain) contact buried in the substrate. The substrate further includes a source (or drain) region in the substrate which is in electrical connection with the source (or drain) contact. The substrate further includes a channel region adjacent to the source (or drain) region. A gate dielectric is provided on top of the channel region and a gate electrode is provided on top of the gate dielectric. The substrate may be of the silicon on insulator (SOI) or bulk type. The buried source (or drain) contact makes electrical connection to a side of the source (or drain) region using a junction provided at a same level of the substrate as the source (or drain) and channel regions.
Abstract:
An integrated circuit transistor is formed on a substrate. A trench in the substrate is at least partially filed with a metal material to form a source (or drain) contact buried in the substrate. The substrate further includes a source (or drain) region in the substrate which is in electrical connection with the source (or drain) contact. The substrate further includes a channel region adjacent to the source (or drain) region. A gate dielectric is provided on top of the channel region and a gate electrode is provided on top of the gate dielectric. The substrate may be of the silicon on insulator (SOI) or bulk type. The buried source (or drain) contact makes electrical connection to a side of the source (or drain) region using a junction provided at a same level of the substrate as the source (or drain) and channel regions.