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Class 257/412 - Gate electrode of refractory material (e.g., polysilicon or a silicide of a refractory or platinum group metal)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: Subject matter wherein the device has a gate electrode which
No. of patents: 1036
Last issue date: 04/17/2012


1                      
NumberTitleIssue Date
8159038Self aligned silicided contacts
Structures and methods of forming self aligned silicided contacts are disclosed. The structure includes a gate electrode disposed over an active area, a liner disposed over the gate electrode and at least a portion of the active area, an insulating layer disposed ov...
04/17/2012
8115263Laminated silicon gate electrode
Within a method for forming a silicon layer, there is employed at least one sub-layer formed of a higher crystalline silicon material and at least one sub-layer formed of a lower crystalline silicon material. The lower crystalline silicon material is formed employin...
02/14/2012
8115264Semiconductor device having a metal gate with a low sheet resistance and method of fabricating metal gate of the same
Provided is a semiconductor device that comprises a metal gate having a low sheet resistance characteristic and a high diffusion barrier characteristic and a method of fabricating the metal gate of the semiconductor device. The semiconductor device includes a metal ...
02/14/2012
8110880Systems and methods for interconnect metallization using a stop-etch layer
Systems and methods for single lithography step interconnection metallization using a stop-etch layer are described. A method that includes depositing a stop-etch layer over a semiconductor device, depositing an interconnect metallization material over the stop-etch...
02/07/2012
8063453Gate in semiconductor device and method of fabricating the same
A gate of a semiconductor device includes a substrate, and a polysilicon layer over the substrate, wherein the polysilicon layer is doped with first conductive type impurities having a concentration that decreases when receding from the substrate and counter-doped w...
11/22/2011
8058695Semiconductor device
A semiconductor device includes a silicon substrate, and a NiSi layer provided on the silicon substrate aiming to suppress oxidation of the surface of a NiSi layer and the resistivity increase. The NiSi layer includes a bottom NiSi region and a top NiSi region. The ...
11/15/2011
8039907Semiconductor device and method for fabricating the same
A transistor, comprising a first gate structure formed on a substrate, and having a stacked structure of a first gate electrode and a first gate hard mask, a first gate spacer formed on sidewalls of the first gate structure, a second gate structure having a stacked ...
10/18/2011
8039908Damascene gate having protected shorting regions
The present invention relates generally to semiconductor devices and, more specifically, to damascene gates having protected shorting regions and related methods for their manufacture. A first aspect of the invention provides a method of forming a damascene gate wit...
10/18/2011
8030718Local charge and work function engineering on MOSFET
The present disclosure provides a semiconductor device. The semiconductor device includes a semiconductor substrate having a source region and a drain region, defining a first dimension from the source to drain; and a gate stack disposed on the semiconductor substra...
10/04/2011
7968954Intermediate semiconductor device having nitrogen concentration profile
A method for reducing the effective thickness of a gate oxide using nitrogen implantation and anneal subsequent to dopant implantation and activation is provided. More particularly, the present invention provides a method for fabricating semiconductor devices, for e...
06/28/2011
7968956Semiconductor device
A semiconductor device includes a semiconductor substrate, a p-channel MIS transistor formed on the substrate, the p-channel transistor having a first gate dielectric formed on the substrate and a first gate electrode layer formed on the first dielectric, and an n-c...
06/28/2011
7968955Gate in semiconductor device and method of fabricating the same
A gate of a semiconductor device includes a substrate, and a polysilicon layer over the substrate, wherein the polysilicon layer is doped with first conductive type impurities having a concentration that decreases when receding from the substrate and counter-doped w...
06/28/2011
7944005Semiconductor device and method for fabricating the same
A semiconductor device includes a semiconductor substrate including an NMOS region and a PMOS region, active regions of the semiconductor substrate defined by a device isolation structure formed in the semiconductor substrate, the active regions including an NMOS ac...
05/17/2011
7944006Metal gate electrode stabilization by alloying
Stabilized metal gate electrode for complementary metal-oxide-semiconductor (“CMOS”) applications and methods of making the stabilized metal gate electrodes are disclosed. Specifically, the metal gate electrodes are stabilized by alloying wherein the alloy compr...
05/17/2011
7915695Semiconductor device comprising gate electrode
A semiconductor device capable of reducing deterioration of electron mobility while suppressing depletion of gate electrodes is provided. This semiconductor device includes a metal-containing layer so formed that at least either a first gate electrode or a second ga...
03/29/2011
7902614Semiconductor device with gate stack structure
A semiconductor device includes a first conductive layer, a first intermediate structure over the first conductive layer, a second intermediate structure over the first intermediate structure, and a second conductive layer over the second intermediate structure. The...
03/08/2011
7898042Two-terminal switching devices and their methods of fabrication
Two-terminal switching devices characterized by high on/off current ratios and by high breakdown voltage are provided. These devices can be employed as switches in the driving circuits of active matrix displays, e.g., in electrophoretic, rotataing element and liquid...
03/01/2011
7884428Semiconductor device and method for manufacturing the same
A semiconductor device includes an Nch transistor having a first gate electrode and a Pch transistor having a second gate electrode. The first gate electrode and the second gate electrode are made of materials causing stresses of different magnitudes. ...
02/08/2011
7880243Simple low power circuit structure with metal gate and high-k dielectric
FET device structures are disclosed with the PFET and NFET devices having high-k dielectric gate insulators and metal containing gates. The metal layers of the gates in both the NFET and PFET devices have been fabricated from a single common metal layer. Due to the ...
02/01/2011
7875939Semiconductor device including an ohmic layer
In an ohmic layer and methods of forming the ohmic layer, a gate structure including the ohmic layer and a metal wiring having the ohmic layer, the ohmic layer is formed using tungsten silicide that includes tungsten and silicon with an atomic ratio within a range o...
01/25/2011
7851874Semiconductor device and method for manufacturing the same
A semiconductor device according to an embodiment includes device isolating layers having a top surface lower than a sheet height of a semiconductor substrate; a gate insulating layer and a gate electrode sequentially stacked on the upper surface of an active region...
12/14/2010
7812415Apparatus having gate structure and source/drain over semiconductor substrate
A semiconductor device including a gate insulating layer formed over a semiconductor substrate; a gate insulating layer pattern formed over an exposed uppermost surface of the semiconductor substrate along the same horizontal plane as the gate insulating layer; an i...
10/12/2010
7812414Hybrid process for forming metal gates
A semiconductor structure and methods for forming the same are provided. The semiconductor structure includes a first MOS device of a first conductivity type and a second MOS device of a second conductivity type opposite the first conductivity type. The first MOS de...
10/12/2010
7808058Method of forming a transistor having gate protection and transistor formed according to the method
A microelectronic device and a method of forming same. The method comprises: a transistor gate; a first spacer and a second spacer respectively adjacent a first side and a second side of the gate; a diffusion layer supra-adjacent the gate; contact regions super-adja...
10/05/2010
7781849Semiconductor devices and methods of fabricating the same
Provided are semiconductor devices and methods of fabricating the same, and more specifically, semiconductor devices having a W—Ni alloy thin layer that has a low resistance, and methods of fabricating the same. The semiconductor devices include the W—Ni alloy t...
08/24/2010
7759748Semiconductor device with reduced diffusion of workfunction modulating element
A semiconductor device is disclosed that comprises a fully silicided electrode formed of an alloy of a semiconductor material and a metal, a workfunction modulating element for modulating a workfunction of the alloy, and a dielectric in contact with the fully silici...
07/20/2010
7745889Metal oxide semiconductor transistor with Y shape metal gate
A metal oxide semiconductor (MOS) transistor with a Y structure metal gate is provided. The MOS transistor includes a substrate, a Y structure metal gate positioned on the substrate, two doping regions disposed in the substrate on two sides of the Y structure metal ...
06/29/2010
7732878MOS devices with continuous contact etch stop layer
A semiconductor structure includes a substrate, a gate stack on the substrate, a source/drain region adjacent the gate stack, a source/drain silicide region on the source/drain region, a protection layer on the source/drain silicide region, wherein a region over the...
06/08/2010
7732879Semiconductor device and method for manufacturing semiconductor device
Provided are a semiconductor device and a method for manufacturing the semiconductor device. The semiconductor device includes: a gate electrode formed of polysilicon on a substrate with a gate insulating layer interposed between the gate electrode and the substrate...
06/08/2010
7728394Semiconductor device and manufacturing method thereof
A semiconductor device includes a substrate, a p-channel MIS transistor formed on an n-type well on the substrate, having a first gate dielectric and a first gate electrode formed thereon and formed of a Ta—C alloy wherein a crystal orientation ratio of a TaC (111...
06/01/2010
7709910Semiconductor structure for low parasitic gate capacitance
A semiconductor structure provides lower parasitic capacitance between the gate electrode and contact vias while providing substantially the same level of stress applied by a nitride liner as conventional MOSFETs by reducing the height of the gate electrode and main...
05/04/2010
7696585Semiconductor device and manufacturing method of semiconductor device
In one aspect of the present invention, a semiconductor device may include a semiconductor substrate; a first gate dielectric layer provided on the semiconductor substrate, the relative dielectric constant ratio of the first gate dielectric layer being no less than ...
04/13/2010
7696586Cobal disilicide structure
A structure. The structure may include a layer of cobalt disilicide that is substantially free of cobalt monosilicide and there is substantially no stringer of an oxide of titanium on the layer of cobalt disilicide. The structure may include a substrate that include...
04/13/2010
7683443MOS devices with multi-layer gate stack
An embodiment of a semiconductor device includes a semiconductor substrate having a principal surface, spaced-apart source and drain regions separated by a channel region at the principal surface, and a multilayered gate structure located over the channel region. Th...
03/23/2010
7683442Raised source/drain with 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 ...
03/23/2010
7679149Method of removing refractory metal layers and of siliciding contact areas
A method of formation of contacts with cobalt silicide since is disclosed. For example, after siliciding with the SOM solution, both unreacted sections of the deposition layer including, for example, cobalt as initial layer for the siliciding and an oxidation protec...
03/16/2010
7576399Semiconductor device and method of manufacture thereof
A dielectric material layer is formed over a workpiece, a metal layer is formed over the dielectric material layer, and a semiconductive material layer is formed over the metal layer. The workpiece is heated, causing a top portion of the metal layer to interact with...
08/18/2009
7511350Nickel alloy silicide including indium and a method of manufacture therefor
The invention provides a semiconductor device, a method of manufacture therefore and a method for manufacturing an integrated circuit including the same. The semiconductor device, among other elements, may include a gate structure located over a substrate, the gate ...
03/31/2009
7495298Insulating buffer film and high dielectric constant semiconductor device and method for fabricating the same
A semiconductor device includes: an n-transistor including a first gate insulating film made of a high-dielectric-constant material and a first gate electrode fully silicided with a metal, the first gate insulating film and the first gate electrode being formed in t...
02/24/2009
7495299Semiconductor device
The following steps are carried out: forming a gate electrode on a semiconductor substrate with a gate insulating film interposed therebetween, forming a dummy gate electrode on the semiconductor substrate with a dummy gate insulating film interposed therebetween an...
02/24/2009
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