Abstract:
One method herein includes forming a gate structure above an active area of a semiconductor substrate, forming sidewall spacer structures adjacent the gate structure, forming a masking layer that allows implantation of ions into the gate electrode but not into areas of the active region where source/drain regions for the transistor will be formed, performing a gate ion implantation process to form a gate ion implant region in the gate electrode and performing an anneal process. An N-type transistor including sidewall spacer structures positioned adjacent a gate structure, a plurality of source/drain regions for the transistor and a gate implant region positioned in a gate electrode, wherein the gate implant region is comprised of ions of phosphorous, arsenic or an implant material with an atomic size that is equal to or greater than the atomic size of phosphorous at a concentration level that falls within the range of 5e18-5e21 ions/cm3.
Abstract:
Methods are provided for fabricating an integrated circuit that includes gate to active contacts. One method includes forming a dummy gate structure including a dummy gate electrode having sidewalls and overlying a semiconductor substrate and first and second sidewall spacers on the sidewalls of the dummy gate electrode. The method includes removing the dummy gate electrode to form a trench bounded by the first and second sidewall spacers. The method removes an upper portion of the first sidewall spacer and deposits a layer of metal in the trench and over a remaining portion of the first sidewall spacer to form a gate electrode and an interconnect.
Abstract:
One illustrative method disclosed herein includes forming a gate insulation layer on a semiconducting substrate, performing an ion implantation process to implant a rare earth element into the gate insulation layer, and forming a silicon-containing gate electrode above the gate insulation layer comprising the implanted rare earth element. One illustrative device disclosed herein includes a gate insulation layer positioned on a semiconducting substrate, wherein the gate insulation layer is comprised of silicon dioxide and a rare earth element, and a silicon-containing gate electrode positioned on the gate insulation layer.
Abstract:
Three-dimensional transistors may be formed on the basis of high mobility semiconductor materials, which may be provided locally restricted in the channel region by selective epitaxial growth processes without using a mask material for laterally confining the growing of the high mobility semiconductor material. That is, by controlling process parameters of the selective epitaxial growth process, the cross-sectional shape may be adjusted without requiring a mask material, thereby reducing overall process complexity and providing an additional degree of freedom for adjusting the transistor characteristics in terms of threshold voltage, drive current and electrostatic control of the channel region.
Abstract:
The present disclosure provides in one aspect a semiconductor device including a substrate structure comprising an active semiconductor material formed over a base substrate and a buried insulating material formed between the active semiconductor material and the base substrate, a ferroelectric gate structure disposed over the active semiconductor material in an active region of the substrate structure, the ferroelectric gate structure comprising a gate electrode and a ferroelectric material layer, and a contact region formed in the base substrate under the ferroelectric gate structure.
Abstract:
The present disclosure provides in one aspect a semiconductor device including a substrate structure comprising an active semiconductor material formed over a base substrate and a buried insulating material formed between the active semiconductor material and the base substrate, a ferroelectric gate structure disposed over the active semiconductor material in an active region of the substrate structure, the ferroelectric gate structure comprising a gate electrode and a ferroelectric material layer, and a contact region formed in the base substrate under the ferroelectric gate structure.
Abstract:
A method includes providing a semiconductor-on-insulator structure including a semiconductor substrate, a layer of electrically insulating material over the semiconductor substrate and a layer of semiconductor material over the layer of electrically insulating material. A first transistor is formed. The formation of the first transistor includes forming a dummy gate structure over the layer of semiconductor material, forming a source region of the first transistor and a drain region of the first transistor in portions of the semiconductor substrate adjacent the dummy gate structure, forming an electrically insulating structure annularly enclosing the dummy gate structure and performing a replacement gate process. The replacement gate process includes removing the dummy gate structure and a portion of the layer of semiconductor material below the dummy gate structure, wherein a recess is formed in the electrically insulating structure. The recess is filled with an electrically conductive material.
Abstract:
A semiconductor device includes a semiconductor substrate and a fin positioned above the semiconductor substrate, wherein the fin includes a semiconductor material. Additionally, a ferroelectric high-k spacer covers sidewall surfaces of the fin and a non-ferroelectric high-k material layer covers the ferroelectric high-k spacer and the fin, wherein a portion of the non-ferroelectric high-k material layer is positioned on and in direct contact with the semiconductor material at the upper surface of the fin.
Abstract:
E-fuses are used in integrated circuits in order to permit real-time dynamic reprogramming of the circuit after manufacturing. An e-fuse is hereby proposed wherein the metal element adapted to be blown upon passage of a current is not comprised of a silicide layer but is rather a metal layer above which a semiconductor layer is formed. A dielectric layer is then formed on the semiconductor layer, in order to prevent metal silicide from forming over the metal layer. The process of manufacturing the e-fuse can be easily integrated in an HKMG manufacturing flow. In particular, fully silicided metal gates may be manufactured in conjunction with the e-fuse, without jeopardizing the correct functioning of the e-fuse.
Abstract:
A method of manufacturing a semiconductor device is provided including forming replacement gates over a semiconductor layer, forming sidewall spacers at sidewalls of the replacement gates, forming a dielectric layer in interspaces between the sidewall spacers of neighboring replacement gates, removing the replacement gates and sidewall spacers to form openings in the dielectric layer, and forming gate electrodes in the openings.