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Class 257/E21.197 - Final conductor layer next to insulator being silicon e.g., polysilicon, with or without impurities (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E21.195. This subclass
No. of patents: 173
Last issue date: 04/29/2008


1          
NumberTitleIssue Date
7365027ALD of amorphous lanthanide doped TiOfilms
The use of atomic layer deposition (ALD) to form an amorphous dielectric layer of titanium oxide (TiOx) doped with lanthanide elements, such as samarium, europium, gadolinium, holmium, erbium and thulium, produces a reliable structure for use in a variety...
04/29/2008
7224026Nanoelectronic devices and circuits
Diode devices with superior and pre-settable characteristics and of nanometric dimensions, comprise etched insulative lines (8, 16, 18) in a conductive substrate to define between the lines charge carrier flow paths, formed as elongate channels (20) at...
05/29/2007
6703672Polysilicon/amorphous silicon composite gate electrode
A polysilicon/amorphous silicon composite layer for improved linewidth control in the patterning of gate electrodes, in the manufacture of metal oxide semiconductor (MOS) devices. The formation of a composite polysilicon/amorphous silicon gate in an integ...
03/09/2004
6682994Methods for transistor gate formation using gate sidewall implantation
Methods are disclosed for semiconductor device fabrication in which MOS transistor gates are to be formed. Polysilicon gate structures and sidewall spacers are formed, with upper portions of the gate sidewalls exposed. Angled implantation processing is em...
01/27/2004
6670263Method of reducing polysilicon depletion in a polysilicon gate electrode by depositing polysilicon of varying grain size
Polysilicon electrical depletion in a polysilicon gate electrode is reduced by depositing the polysilicon under controlled conditions so as to vary the crystal grain size through the thickness of the polysilicon. The resulting structure may have two or mo...
12/30/2003
6664153Method to fabricate a single gate with dual work-functions
A method for forming a single gate having a dual work-function is described. A gate electrode is formed overlying a gate dielectric layer on a substrate. Sidewalls of the gate electrode are selectively doped whereby the doped sidewalls have a first work-f...
12/16/2003
6660608Method for manufacturing CMOS device having low gate resistivity using aluminum implant
A CMOS device (10) having p-channel and n-channel transistors with aluminum implanted gates (20). When making the device (10), aluminum is non-selectively implanted to form a source and drain for the n-channel transistor and to reduce the resistivity of t...
12/09/2003
6653699Polysilicon/Amorphous silicon gate structures for integrated circuit field effect transistors
Gate electrodes for integrated circuit field effect transistors are fabricated by forming a polysilicon layer on a gate insulating layer opposite an integrated circuit substrate, forming an amorphous impurity layer on the polysilicon layer opposite the ga...
11/25/2003
6645840Multi-layered polysilicon process
A method for forming a notched MOS gate structure is described. A multi-layer gate structure is formed (150) where the top layer (140) oxidizes at a faster rate compared to the bottom layer (130). This results in the formation of a notch (165) in the gate...
11/11/2003
6627971Polysilicon structures with different resistance values for gate electrodes, resistors, and capacitor plates
A device with a plurality of structures with different resistance values is formed on a substrate. A polysilicon layer is formed upon the substrate. A silicon oxide layer is formed over the substrate. A hard masking layer is formed over the silicon oxide ...
09/30/2003
6620671Method of fabricating transistor having a single crystalline gate conductor
A method of manufacturing an integrated circuit on a substrate provides a gate structure including single crystalline material. The method can provide a first amorphous or polycrystalline semiconductor layer above a top surface of the substrate and patter...
09/16/2003
6620713Interfacial layer for gate electrode and high-k dielectric layer and methods of fabrication
Method of fabricating a semiconductor device. The semiconductor device comprises a substrate, a high-k gate dielectric layer formed on the substrate, and a hydrogen-free gate electrode deposited on the high-k gate dielectric layer wherein the hydrogen-fre...
09/16/2003
6613695Surface preparation prior to deposition
Methods are provided herein for treating substrate surfaces in preparation for subsequent nucleation-sensitive depositions (e.g., polysilicon or poly-SiGe) and adsorption-driven deposition (e.g. atomic layer deposition or ALD). Prior to depositing, the su...
09/02/2003
6607958Semiconductor device and method of manufacturing the same
Disclosed is a semiconductor device, comprising a semiconductor substrate, an insulating film and a gate electrode formed on the semiconductor substrate, source-drain regions formed in the semiconductor substrate, and a metal oxide layer formed selectivel...
08/19/2003
65934502,7-aryl-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers
The invention relates to 2,7-substituted-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers. The fluorenes, oligomers and polymers are substituted at the 9-position with two hydrocarbyl moieties which may optionally contain one or m...
07/15/2003
6566210Method of improving gate activation by employing atomic oxygen enhanced oxidation
The present invention provides a method of preparing a Si-based metal-insulator-semiconductor (MIS) transistor which prevents the polycrystalline grains of the gate conductor from getting significantly larger by reducing the thermal budget of the sidewall...
05/20/2003
6563154Polysilicon layer having improved roughness after POCl3 doping
An improved method for depositing the polysilicon layer from which a gate pedestal is later formed is described. Deposition takes place in two stages. Initially, the conventional deposition temperature of about 630° C. is used. Then, when the intended th...
05/13/2003
6562687MIS transistor and method for making same on a semiconductor substrate
The invention relates to an MIS transistor comprising a channel region (118), source (114) and drain (116) regions arranged on either side of the channel, and a gate (150) set closely above the channel region. According to the invention, the channel has a...
05/13/2003
6559037Process for producing semiconductor device having crystallized film formed from deposited amorphous film
A semiconductor device containing a polycrystalline silicon thin film wherein crystal grains of the silicon thin film have mainly a columnar structure and a crystal orientation of individual crystal grains is almost in a uniform direction can be produced ...
05/06/2003
6548862Structure of semiconductor device and method for manufacturing the same
A semiconductor device and a method for manufacturing the same are provided. The structure of a semiconductor device includes gate electrodes having a T-shaped structure comprised of first and second gate electrodes having low gate resistance and low para...
04/15/2003
6507072Insulated gate field effect semiconductor device and forming method thereof
In an insulated gate field effect semiconductor device, the gate electrode formed on the gate insulating film includes the first and second semiconductor layers as a double layer. An impurity for providing one conductivity type is not contained in first s...
01/14/2003
6495890Field-effect transistor with multidielectric constant gate insulation layer
A field-effect transistor comprises a semiconductor substrate, a gate insulation film formed selectively on the semiconductor substrate, a gate electrode formed on the gate insulation film, source/drain regions formed in surface portions of the semiconduc...
12/17/2002
6489207Method of doping a gate and creating a very shallow source/drain extension and resulting semiconductor
The present invention relates to a method of forming a very shallow source-drain (S/D) extension while simultaneously highly doping a very narrow polysilicon gate through to the gate dielectric interface. The invention also relates to the resulting semico...
12/03/2002
6482709Manufacturing process of a MOS transistor
A manufacturing method of a MOS transistor. A gate oxide layer and a polysilicon layer are successively formed on a substrate. A nitrogen ion implantation is performed to implant nitrogen ions into the contact region of the polysilicon layer with the gate...
11/19/2002
6482725Gate formation method for reduced poly-depletion and boron penetration
Depletion of dopant from polysilicon gate layers with attendant dopant penetration of underlying gate oxide layers of silicon-based MOS and CMOS transistor devices are reduced or substantially eliminated by a process wherein a thin, high-quality silicon o...
11/19/2002
6475887Method of manufacturing semiconductor device
A semiconductor device which can effectively prevent impurity diffusion in heat treatment for electrically activating the impurity, and a manufacturing method thereof are disclosed. In the semiconductor device, a diffusion preventing layer having a depth ...
11/05/2002
6475842Process for gate oxide side-wall protection from plasma damage to form highly reliable gate dielectrics
The present invention provides a method for manufacturing a semiconductor device. The method includes forming an oxidized portion of an initial gate structure and a sacrificial gate layer, and further includes removing the oxidized portion of the initial ...
11/05/2002
6476462MOS-type semiconductor device and method for making same
An MOS-type semiconductor device comprises two semiconductors separated by an insulator. The two semiconductors comprise monocrystal semiconductors, each having a crystallographic orientation with respect to the insulator (or other crystallographic/semico...
11/05/2002
6476454Semiconductor device and method of manufacturing the same
Disclosed is a semiconductor device, comprising a semiconductor substrate, an insulating film and a gate electrode formed on the semiconductor substrate, source-drain regions formed in the semiconductor substrate, and a metal oxide layer formed selectivel...
11/05/2002
6441464Gate oxide stabilization by means of germanium components in gate conductor
A semi-conductor device includes a silicon substrate. A gate oxide dielectric layer is on the silicon substrate. A gate conductor includes a relatively thin layer of germanium on the dielectric layer. A relatively thick layer of gate conductor material is...
08/27/2002
6432779Selective removal of a metal oxide dielectric
A method for forming a semiconductor device is disclosed in which a metal oxide gate dielectric layer is formed over a substrate. A gate electrode is then formed over the metal oxide layer thereby exposing a portion of the metal oxide layer. The exposed p...
08/13/2002
6432763Field effect transistor having doped gate with prevention of contamination from the gate during implantation
For fabricating a field effect transistor on a semiconductor substrate, a gate dielectric of the field effect transistor is formed on a semiconductor substrate. A doped gate electrode, which may be comprised of silicon germanium (SiGe) for example, is for...
08/13/2002
6413841MOS type semiconductor device and manufacturing method thereof
First, a polysilicon film is formed on a gate oxide film. Next, a polysilicon oxide film is formed on the polysilicon film. Thereafter, the polysilicon film is thermally treated to allow a crystal grain in the polysilicon film to grow from the gate oxide ...
07/02/2002
6380055Dopant diffusion-retarding barrier region formed within polysilicon gate layer
A diffusion-retarding barrier region is incorporated into the gate electrode to reduce the downward diffusion of dopant toward the gate dielectric. The barrier region is a nitrogen-containing diffusion retarding barrier region formed between two separatel...
04/30/2002
6376323Fabrication of gate of P-channel field effect transistor with added implantation before patterning of the gate
For fabricating a PMOS (P-channel Metal Oxide Semiconductor) field effect transistor on a semiconductor substrate, a layer of gate dielectric material containing nitrogen is deposited on the semiconductor substrate, and a layer of gate electrode material ...
04/23/2002
6368926Method of forming a semiconductor device with source/drain regions having a deep vertical junction
The present invention is directed to a method of forming source/drain regions in a semiconductor device. In one illustrative embodiment, the method comprises forming a gate stack above a semiconducting substrate, forming a recess in said substrate proxima...
04/09/2002
6362033Self-aligned LDD formation with one-step implantation for transistor formation
A method for forming a transistor is formed where a gate electrode of the transistor is formed over a substrate defining a gate channel portion of the substrate. A mask is also formed over the substrate, a portion of the mask extending over a first portio...
03/26/2002
6337264Simplified method of patterning polysilicon gate in a semiconductor device including an oxime layer as a mask
Polysilicon gates are formed with greater accuracy and consistency by depositing an antireflective layer of silicon oxime on the polysilicon layer before patterning. Embodiments also include depositing the polysilicon layer and the silicon oxime layer in ...
01/08/2002
6313021PMOS device having a layered silicon gate for improved silicide integrity and enhanced boron penetration resistance
The present invention provides a process for forming a sub-micron p-type metal oxide semiconductor (PMOS) structure on a semiconductor substrate. The process includes forming a gate oxide on the semiconductor substrate, forming a gate layer on the gate ox...
11/06/2001
6306710Fabrication of a gate structures having a longer length toward the top for formation of a rectangular shaped spacer
The gate structure of the MOSFET of the present invention is formed to have a longer length toward the top of the gate structure such that a spacer having a substantially rectangular shaped is formed at the sidewalls of the gate structure. For fabricating...
10/23/2001
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