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Class 438/300 - Having elevated source or drain (e.g., epitaxially formed source or drain, etc.)


Subclass of Class 438 - Semiconductor device manufacturing: process
Definition: Process including a step of forming the source or drain
No. of patents: 914
Last issue date: 05/22/2012


1                      
NumberTitleIssue Date
8183117Device layout in integrated circuits to reduce stress from embedded silicon-germanium
An integrated circuit including one or more transistors in which source and drain regions are formed as embedded silicon-germanium (eSiGe). Guard ring structures in the integrated circuit are formed in single-crystal silicon, rather than in eSiGe. In one example, p-...
05/22/2012
8183118Method for fabricating MOS transistor
The invention discloses a method for fabricating a MOS transistor. A substrate having thereon a gate structure is provided. A silicon nitride layer is deposited on the gate structure. A dry etching process is then performed to define a silicon nitride spacer on each...
05/22/2012
8178414NMOS architecture involving epitaxially-grown in-situ N-type-doped embedded eSiGe:C source/drain targeting
An NMOS transistor is formed with improved manufacturability. An embodiment includes forming N-type doped embedded silicon germanium containing carbon (eSiGe:C) in source/drain regions of a substrate, and amorphizing the eSiGe:C. The use of eSiGe:C provides a reduct...
05/15/2012
8168503Method for forming an SOI schottky source/drain device to control encroachment and delamination of silicide
A method of fabricating a Schottky field effect transistor is provided that includes providing a substrate having at least a first semiconductor layer overlying a dielectric layer, wherein the first semiconductor layer has a thickness of less than 10.0 nm. A gate st...
05/01/2012
8153494Nanowire MOSFET with doped epitaxial contacts for source and drain
A FET structure with a nanowire forming the FET channel, and doped source and drain regions formed by radial epitaxy from the nanowire body is disclosed. A top gated and a bottom gated nanowire FET structures are discussed. The source and drain fabrication can use e...
04/10/2012
8138055Semiconductor devices having pFET with SiGe gate electrode and embedded SiGe source/drain regions and methods of making the same
In a method of making a semiconductor device, a first gate stack is formed on a substrate at a pFET region, which includes a first gate electrode material. The source/drain regions of the substrate are etched at the pFET region and the first gate electrode material ...
03/20/2012
8138053Method of forming source and drain of field-effect-transistor and structure thereof
Embodiments of the invention provide a method of forming a field-effect-transistor (FET). The method includes implanting one or more n-type dopants to create one or more implanted regions with at least a portion of the implanted regions being designated as regions f...
03/20/2012
8138054Enhanced field effect transistor
An enhanced FET capable of controlling current above and below a gate of the FET. The FET is formed on a semiconductor substrate. A source and drain are formed in the substrate (or in a well in the substrate). A first epitaxial layer of similar doping to the source ...
03/20/2012
8129247Omega shaped nanowire field effect transistors
A method for forming a nanowire field effect transistor (FET) device includes forming a nanowire on a semiconductor substrate, forming a first gate structure on a first portion of the nanowire, forming a first protective spacer adjacent to sidewalls of the first gat...
03/06/2012
8124487Method for enhancing tensile stress and source/drain activation using Si:C
A method is disclosed for enhancing tensile stress in the channel region of a semiconductor structure. The method includes performing a series of ion implantation steps at predetermined implant energies to implant carbon ions deep within the semiconductor structure ...
02/28/2012
8114747Method for creating 3-D single gate inverter
A 3-D (Three Dimensional) inverter having a single gate electrode. The single gate electrode has a first gate dielectric between the gate electrode and a body of a first FET (Field Effect transistor) of a first doping type, the first FET having first source/drain re...
02/14/2012
8097517Method for manufacturing semiconductor device with improved short channel effect of a PMOS and stabilized current of a NMOS
The present invention relates to a semiconductor device which is capable of simultaneously improving a short channel effect of a PMOS and the current of an NMOS and a method for manufacturing the same. The semiconductor device includes first and second gates formed ...
01/17/2012
8093130Method of manufacturing a semiconductor device having raised source and drain of differing heights
This semiconductor device has an MOS transistor equipped with a gate electrode formed on a semiconductor substrate, a source region next to one side of the gate electrode, and a drain region next to another side of the gate electrode, wherein an upper end of the sou...
01/10/2012
8062947Semiconductor device and method of manufacturing the same
The present invention relates to a method of manufacturing a semiconductor device having a shared contact for connection between a source/drain region and a gate electrode. After formation of a gate electrode via a gate insulating film on a semiconductor substrate, ...
11/22/2011
8062948Method of fabricating transistor for semiconductor device
A method of fabricating a transistor in a semiconductor device includes forming a gate structure over a substrate, forming a first trench by etching the substrate on either side of the gate structure to a first depth, ion-implanting dopants of a first conductivity t...
11/22/2011
8058133Method of fabrication of metal oxide semiconductor field effect transistor
A method of fabrication of a metal oxide semiconductor field effect transistor includes first providing a substrate on which a gate structure is formed. Afterwards, a portion of the substrate is removed to form a first recess in the substrate at both ends of the gat...
11/15/2011
8043920finFETS and methods of making same
A method of fabricating and a structure of a merged multi-fin finFET. The method includes forming single-crystal silicon fins from the silicon layer of an SOI substrate having a very thin buried oxide layer and merging the end regions of the fins by growing vertical...
10/25/2011
8043919Method of fabricating semiconductor device
A method of fabricating a semiconductor device is provided. A gate structure is formed on a substrate and then a first spacer is formed at a sidewall of the gate structure. Next, recesses are respectively formed in the substrate at two sides of the first spacer. The...
10/25/2011
8039350Methods of fabricating MOS transistors having recesses with elevated source/drain regions
Methods of fabricating metal-oxide-semiconductor (MOS) transistors having elevated source/drain regions are provided. The MOS transistors formed by these methods may include a gate pattern formed to cross over a predetermined region of a substrate. Recessed regions ...
10/18/2011
8026144Method for manufacturing semiconductor device
In a semiconductor device having a raised source and drain structure, in forming a raised region by etching, etching of an island-like semiconductor film which is an active layer is inhibited. In a method for manufacturing a semiconductor device, an insulating film ...
09/27/2011
8017487Method to control source/drain stressor profiles for stress engineering
A strained channel transistor structure and methods of forming a semiconductor device are presented. The transistor structure includes a strained channel region having a first semiconductor material with a first natural lattice constant. A gate dielectric layer over...
09/13/2011
8012839Method for fabricating a semiconductor device having an epitaxial channel and transistor having same
A transistor having an epitaxial channel and a method for fabricating a semiconductor device having an epitaxial channel, the method including forming a hardmask on a substrate and forming an opening in the hardmask. The opening is geometrically characterized by a l...
09/06/2011
8012840Semiconductor device and method of manufacturing semiconductor device
A semiconductor device includes a side wall spacer formed on the side surface of a gate electrode formed on the upper side of a semiconductor substrate with a gate insulation film therebetween, extension regions built up on the semiconductor substrate, and source/dr...
09/06/2011
8008157CMOS device with raised source and drain regions
A method of forming a semiconductor structure includes forming a PMOS device and an NMOS device. The step of forming the PMOS device includes forming a first gate stack on a semiconductor substrate; forming a first offset spacer on a sidewall of the first gate stack...
08/30/2011
8003472Method of manufacturing semiconductor device
When transistors having different gate lengths are formed on one substrate and an ESD structure is applied to at least a transistor having longer gate length, a method including: depositing a gate insulating film and a gate electrode material layer on the substrate;...
08/23/2011
8003470Strained semiconductor device and method of making the same
In a method for forming a semiconductor device, a gate electrode is formed over a semiconductor body (e.g., bulk silicon substrate or SOI layer). The gate electrode is electrically insulated from the semiconductor body. A first sidewall spacer is formed along a side...
08/23/2011
8003471Formation of a super steep retrograde channel
Systems and methods for raised source/drain with super steep retrograde channel. In accordance with a first embodiment of the present invention, in one embodiment, a semiconductor device comprises a substrate comprising a surface and a gate oxide disposed above the ...
08/23/2011
7994014Semiconductor devices having faceted silicide contacts, and related fabrication methods
The disclosed subject matter relates to semiconductor transistor devices and associated fabrication techniques that can be utilized to form silicide contacts having an increased effective size, relative to conventional silicide contacts. A semiconductor device fabri...
08/09/2011
7989298Transistor having V-shaped embedded stressor
A semiconductor device and a method of making the device are provided. The method can include forming a gate conductor overlying a major surface of a monocrystalline semiconductor region and forming first spacers on exposed walls of the gate conductor. Using the gat...
08/02/2011
7989299Semiconductor device, method of manufacturing the same, and method of evaluating semiconductor device
A semiconductor device has: a silicon (semiconductor) substrate; a gate insulating film and a gate electrode, which are formed on the silicon substrate in this order; and source/drain material layers formed in recesses (holes) in the silicon substrate, the recesses ...
08/02/2011
7989297Asymmetric epitaxy and application thereof
The present invention provides a method of forming asymmetric field-effect-transistors. The method includes forming a gate structure on top of a semiconductor substrate, the gate structure including a gate stack and spacers adjacent to sidewalls of the gate stack, a...
08/02/2011
7989296Semiconductor device and method of manufacturing same
A semiconductor device and related method of manufacture are disclosed. The semiconductor device comprises a gate electrode formed on a semiconductor substrate, an active region containing spaces formed below the gate electrode, a channel region formed between the g...
08/02/2011
7981751Structure and method for fabricating self-aligned metal contacts
A semiconductor structure including at least one transistor is provided which has a stressed channel region that is a result of having a stressed layer present atop a gate conductor that includes a stack comprising a bottom polysilicon (polySi) layer and a top metal...
07/19/2011
7981750Methods of fabrication of channel-stressed semiconductor devices
In one aspect, a method of fabricating a semiconductor device is provided. The method includes forming at least one capping layer over epitaxial source/drain regions of a PMOS device, forming a stress memorization (SM) layer over the PMOS device including the at lea...
07/19/2011
7968413Methods for forming a transistor
Methods are provided for depositing materials in forming semiconductor devices on a substrate, such as metal oxide transistors. In one embodiment, the invention generally provides a method of processing a substrate including forming a gate dielectric on a substrate ...
06/28/2011
7968414Semiconductor device and production method thereof
A method of fabricating a semiconductor device is disclosed that is able to suppress a short channel effect and improve carrier mobility. In the method, trenches are formed in a silicon substrate corresponding to a source region and a drain region. When epitaxially ...
06/28/2011
7960237Structure and method for mosfet with reduced extension resistance
The present invention provides a method in which a low-resistance connection between the MOS channel and silicided source/drain regions is provided that has an independence from the extension ion implant process as well as device overlap capacitance. The method of t...
06/14/2011
7960236Phosphorus containing Si epitaxial layers in N-type source/drain junctions
Methods for formation of epitaxial layers containing n-doped silicon are disclosed. Specific embodiments pertain to the formation and treatment of epitaxial layers in semiconductor devices, for example, Metal Oxide Semiconductor Field Effect Transistor (MOSFET) devi...
06/14/2011
7955936Semiconductor fabrication process including an SiGe rework method
A method for fabricating a semiconductor device includes forming an SiGe region. The SiGe region can be an embedded source and drain region, or a compressive SiGe channel layer, or other SiGe regions within a semiconductor device. The SiGe region is exposed to an SC...
06/07/2011
7951680Integrated circuit system employing an elevated drain
A method for manufacturing an integrated circuit system that includes: providing a substrate including an active device; forming a drift region in the substrate, the drift region bounded in part by a top surface of the substrate and spaced apart from a source; and f...
05/31/2011
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