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Class 257/E51.04 - Carbon nanotubes (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E51.038. This subclass
No. of patents: 56
Last issue date: 10/21/2008


1    
NumberTitleIssue Date
7439562Process for modifying at least one electrical property of a nanotube or a nanowire and a transistor incorporating it
The present invention concerns a method for modyfing at least an electronic property of a carbon nanotube or nanowire comprising exposing said nanotube or nanowire to an acid having the formula (I) wherein R1, R2 and R3 are chosen in...
10/21/2008
7439081Method for making integrated circuit chip utilizing oriented carbon nanotube conductive layers
A conductive layer in an integrated circuit is formed as a sandwich having multiple sublayers, including at least one sublayer of oriented carbon nanotubes. The conductive layer sandwich preferably contains two sublayers of carbon nanotubes, in which the carbon nano...
10/21/2008
7432217Method of achieving uniform length of carbon nanotubes (CNTS) and method of manufacturing field emission device (FED) using such CNTS
In a method of achieving uniform lengths of Carbon NanoTubes (CNTs) and a method of manufacturing a Field Emission Device (FED) using such CNTs, an organic film is coated to cover CNTs formed on a predetermined material layer. The organic film is etched to a predete...
10/07/2008
7417320Substrate structure and manufacturing method of the same
A Ti film is pattern-formed on a desired portion on a silicon substrate, and a Co film is formed on the substrate so as to cover the Ti film. CNTs are formed only on a portion, under which the Ti film is formed, of the surface of the Co film at approximately 600° C...
08/26/2008
7413924Plasma etch process for defining catalyst pads on nanoemissive displays
A process for forming a catalyst layer for carbon nanotube growth comprising forming a catalyst layer having a first and second portion over one of a cathode metal layer or a ballast resistor layer; patterning a photoresist over the first portion; etching the second...
08/19/2008
7399691Methods of forming nanoscopic wire-based devices and arrays
Electrical devices comprised of nanoscopic wires are described, along with methods of their manufacture and use. The nanoscopic wires can be nanotubes, preferably single-walled carbon nanotubes. They can be arranged in crossbar arrays using chemically patterned surf...
07/15/2008
7390947Forming field effect transistors from conductors
A nanotube transistor, such as a carbon nanotube transistor, may be formed with a top gate electrode and a spaced source and drain. Conduction along the transistor from source to drain is controlled by the gate electrode. Underlying the gate electrode are at least t...
06/24/2008
7381983N-type carbon nanotube field effect transistor and method of fabricating the same
Provided are an n-type carbon nanotube field effect transistor (CNT FET) and a method of fabricating the n-type CNT FET. The n-type CNT FET may include a substrate; electrodes formed on the substrate and separated from each other; a CNT forrmed on the substrate and ...
06/03/2008
7371696Carbon nanotube structure and method of vertically aligning carbon nanotubes
A Carbon NanoTube (CNT) structure includes a substrate, a CNT support layer, and a plurality of CNTs. The CNT support layer is stacked on the substrate and has pores therein. One end of each of the CNTs is attached to portions of the substrate exposed through the po...
05/13/2008
7371674Nanostructure-based package interconnect
An embodiment of the present invention is an interconnect technique. A nanostructure bump is formed on a die. The nanostructure bump has a template defining nano-sized openings and metallic nano-wires extending from the nano-sized openings. The die is attached to a ...
05/13/2008
7352607Non-volatile switching and memory devices using vertical nanotubes
Non-volatile and radiation-hard switching and memory devices using vertical nano-tubes and reversibly held in state by van der Waals' forces and methods of fabricating the devices. Methods of sensing the state of the devices include measuring capacitance, and tunnel...
04/01/2008
7348675Microcircuit fabrication and interconnection
Embodiments of methods in accordance with the present invention provide three-dimensional carbon nanotube (CNT) integrated circuits comprising layers of arrays of CNT's separated by dielectric layers with conductive traces formed within the dielectric layers to elec...
03/25/2008
7335603System and method for fabricating logic devices comprising carbon nanotube transistors
Carbon nanotube devices and methods for fabricating these devices, wherein in one embodiment, the fabrication process consists of the following process steps: (1) generation of a template, (2) catalyst deposition, and (3) nanotube synthesis within the template. In a...
02/26/2008
7335528Methods of nanotube films and articles
Nanotube films and articles and methods of making the same. A conductive article includes an aggregate of nanotube segments which contact other nanotube segments to define a plurality of conductive pathways along the article. Segments may have different lengths and ...
02/26/2008
7329902IR-light emitters based on SWNT's (single walled carbon nanotubes), semiconducting SWNTs-light emitting diodes and lasers
The present invention relates to a new light emitters that exploit the use of semiconducting single walled carbon nanotubes (SWNTs). Experimental evidences are given on how it is possible, within the standard silicon technology, to devise light emitting diodes (LEDs...
02/12/2008
7323730Optically-configurable nanotube or nanowire semiconductor device
The invention relates to a semiconductor device comprising at least two electrodes and at least one nanotube or nanowire, in particular a carbon nanotube or nanowire, the device including at least one semiconductive nanotube or nanowire having at least one region th...
01/29/2008
7316982Controlling carbon nanotubes using optical traps
An embodiment of the present invention is a technique to control carbon nanotubes (CNTs). A laser beam is focused to a carbon nanotube (CNT) in a fluid. The CNT is responsive to a trapping frequency. The CNT is manipulated by controlling the focused laser beam. ...
01/08/2008
7294877Nanotube-on-gate FET structures and applications
Nanotube on gate FET structures and applications of such, including n2 crossbars requiring only 2n control lines. A non-volatile transistor device includes a source region and a drain region of a first semiconductor type of material and a channel region o...
11/13/2007
7288490Increased alignment in carbon nanotube growth
Method and system for fabricating an array of two or more carbon nanotube (CNT) structures on a coated substrate surface, the structures having substantially the same orientation with respect to a substrate surface. A single electrode, having an associated voltage s...
10/30/2007
7273732Systems and methods for nanowire growth and harvesting
The present invention is directed to systems and methods for nanowire growth and harvesting. In an embodiment, methods for nanowire growth and doping are provided, including methods for epitaxial oriented nanowire growth using a combination of silicon precursors. In...
09/25/2007
7268077Carbon nanotube reinforced metallic layer
A method and apparatus including an interconnect structure having a surface, a plurality of nanotubes disposed adjacent to the surface, and a metallic layer disposed adjacent to the surface and substantially including the nanotubes. An assembly may include a first e...
09/11/2007
7262501Large-area nanoenabled macroelectronic substrates and uses therefor
A method and apparatus for an electronic substrate having a plurality of semiconductor devices is described. A thin film of nanowires is formed on a substrate. The thin film of nanowires is formed to have a sufficient density of nanowires to achieve an operational c...
08/28/2007
7262991Nanotube- and nanocrystal-based non-volatile memory
An embodiment is a transistor for non-volatile memory that combines nanocrystal and nanotube paradigm shifts. In particular an embodiment is a transistor-based non-volatile memory element that utilizes a carbon nanotube channel region and nanocrystal charge storage ...
08/28/2007
7253434Suspended carbon nanotube field effect transistor
The invention provides a carbon nanotube field effect transistor including a nanotube having a length suspended between source and drain electrodes. A gate dielectric material coaxially coats the suspended nanotube length and at least a portion of the source and dra...
08/07/2007
7233071Low-k dielectric layer based upon carbon nanostructures
A low-k dielectric material for use in the manufacture of semiconductor devices, semiconductor structures using the low-k dielectric material, and methods of forming such dielectric materials and fabricating such structures. The low-k dielectric material comprises c...
06/19/2007
7229847Forming electrical contacts to a molecular layer
The present invention provides a process for forming electrical contacts to a molecular layer in a nanoscale device, the nanoscale device, and a method of manufacturing an integrated circuit comprise such devices. The process includes coating a surface of a stamp wi...
06/12/2007
7223811Nanocomposite: products, process for obtaining them and uses thereof
The present invention is related to nanocomposites comprising polymers, carbon nanotubes and layered silicate nanoparticles. The present invention also concerns methods for obtaining said nanocomposites as well as their uses. ...
05/29/2007
7224039Polymer nanocomposite structures for integrated circuits
In accordance with certain embodiments consistent with the present invention, diamond nanoparticles are mixed with polymers. This mixture is expected to provide improved properties in interlayer dielectrics used in integrated circuit applications. This abstract is n...
05/29/2007
7215021Electronic device
The conductor wire surface for constituting a circuit formed by print or junction on a substrate formed from a composite member of ceramics, resin, and an inorganic member and from a resin member is coated with glass, resin, solder, or silver paste, thus the corrosi...
05/08/2007
7211854Field effect devices having a gate controlled via a nanotube switching element
Field effect devices having a gate controlled via a nanotube switching element. Under one embodiment, a non-volatile transistor device includes a source region and a drain region of a first semiconductor type of material and each in electrical communication with a r...
05/01/2007
7190049Nanocylinder arrays
Pathways to rapid and reliable fabrication of nanocylinder arrays are provided. Simple methods are described for the production of well-ordered arrays of nanopores, nanowires, and other materials. This is accomplished by orienting copolymer films and removing a comp...
03/13/2007
7183131Process for producing a nanoelement arrangement, and nanoelement arrangement
A process for producing a nanoelement arrangement and to a nanoelement arrangement. A first nanoelement is at least partially covered with catalyst material for catalyzing the growth of nanoelements. Furthermore, at least one second nanoelement is grown on the catal...
02/27/2007
7176099Hetero-junction bipolar transistor and manufacturing method thereof
A hetero-junction bipolar transistor that satisfies high resistance required to avoid a potential breakdown includes: an n-type sub-collector layer 110 that is made of GaAs; an n-type first collector 121 that is made of a semiconductor material with a ...
02/13/2007
7135773Integrated circuit chip utilizing carbon nanotube composite interconnection vias
Conductive paths in an integrated circuit are formed using multiple undifferentiated carbon nanotubes embedded in a conductive metal, which is preferably copper. Preferably, conductive paths include vias running between conductive layers. Preferably, composite vias ...
11/14/2006
7135728Large-area nanoenabled macroelectronic substrates and uses therefor
A method and apparatus for an electronic substrate having a plurality of semiconductor devices is described. A thin film of nanowires is formed on a substrate. The thin film of nanowires is formed to have a sufficient density of nanowires to achieve an operational c...
11/14/2006
7132304Field emission device, display adopting the same and method of manufacturing the same
A field emission device comprises a glass substrate, an emitter electrode formed on the glass substrate, a carbon nanotube (CNT) emitter formed on the emitter electrode, and a gate stack formed around the CNT emitter for extracting electron beams from the CNT emitte...
11/07/2006
7129097Integrated circuit chip utilizing oriented carbon nanotube conductive layers
A conductive layer in an integrated circuit is formed as a sandwich having multiple sublayers, including at least one sublayer of oriented carbon nanotubes. The conductive layer sandwich preferably contains two sublayers of carbon nanotubes, in which the carbon nano...
10/31/2006
7126207Capacitor with carbon nanotubes
In one embodiment, a capacitor comprises a substrate defining a first electrical terminal; a catalyst layer disposed on the substrate; a plurality of carbon nanotubes disposed on the catalyst layer; a dielectric layer disposed over the plurality of carbon nanotubes;...
10/24/2006
7115916System and method for molecular optical emission
A light emitting device comprises a gate electrode, a channel comprising a molecule for electrically stimulated optical emission, wherein the molecule is disposed within an effective range of the gate electrode, a source coupled to a first end of the channel injecti...
10/03/2006
7105851Nanotubes for integrated circuits
One or more semiconducting or conducting regions of a device such as a transistor may comprise molecular materials such as nanotubes or similar materials. Regions of a conductive alignment pattern used to align the nanotubes may be proximate to one or more ends of t...
09/12/2006
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