Peter S Burke

US Patent:

7645482, Jan 12, 2010

Filed:

Sep 12, 2005

Appl. No.:

11/224917

Inventors:

Peter J. Burke - Irvine CA, US
Zhen Yu - Irvine CA, US
Shengdong Li - Irvine CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

C23C 16/00

US Classification:

4272481, 4272491, 427903

Abstract:

Systems and methods for synthesizing long carbon nanotubes and using the nanotube as an electrical conductor. A substrate is provided with one or more metal underlayer platforms that allow the nanotube to grow freely suspended from the substrate. A modified gas-flow injector is used to reduce the gas flow turbulence during nanotube growth. Nanotube electrodes are formed by growing arrays of aligned nanotubes between two metal underlayer platforms.

US Patent:

7718224, May 18, 2010

Filed:

Aug 4, 2005

Appl. No.:

11/198902

Inventors:

Peter J. Burke - Irvine CA, US
Zhen Yu - Irvine CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

C23C 16/00

US Classification:

4272481, 4272491, 427903

Abstract:

Systems and methods for synthesizing ultra long carbon nanotubes comprising one or more metal underlayer platforms that allow the nanotube to grow freely suspended from the substrate. A modified gas-flow injector is used to reduce the gas flow turbulence during nanotube growth. Nanotube electrodes are formed by growing arrays of aligned nanotubes between two metal underlayer platforms.

US Patent:

7721347, May 18, 2010

Filed:

May 22, 2008

Appl. No.:

12/125865

Inventors:

Peter J. Burke - Irvine CA, US

Assignee:

RF Nano Corporation - Newport Beach CA

International Classification:

G01N 13/16

US Classification:

850 63, 850 21, 73105

Abstract:

A method and device are provided for determining, without contact, the physical and electrical properties of nanotube materials. The device includes a scanning probe configured to generate a signal of certain frequency onto the nanotube material and measure a reflected signal from the nanotube material, and a processor coupled to the scanning probe and configured to determine the physical and electrical properties of the nanotube material from the measured reflected signal. The method includes positioning a scanning probe relative to the nanotube material, generating a signal of certain frequency onto the nanotube material, and measuring a reflected signal from the nanotube material.

US Patent:

7857956, Dec 28, 2010

Filed:

Feb 27, 2004

Appl. No.:

10/789779

Inventors:

Peter J. Burke - Irvine CA, US
Shengdong Li - Irvine CA, US
Lifeng Zheng - Pasadena CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

B03C 5/02

US Classification:

204547, 204643

Abstract:

Systems and methods are provided for the manipulation of a polarizable object with a pair of elongated nanoelectrodes using dielectrophoresis. The nanoelectrodes can be carbon nanotubes and are coupled with one or more time-varying voltage sources to create an electric field gradient in a gap between the nanotubes. The gradient induces the movement of a polarizable object in proximity with the field. The nanotube pair can be used to trap a single polarizable object in the gap. A method of fabricating a nanoelectrode dielectrophoretic system is also provided. Applications extend to self-fabricating nanoelectronics, nanomachines, nanochemistry and nanobiochemistry. A nanoelectrode dielectrophoretic system having an extended nanoelectrode for use in applications including the self-fabrication of a nanowire, as well as methods for fabricating the same, are also provided.

US Patent:

8039870, Oct 18, 2011

Filed:

Jan 28, 2008

Appl. No.:

12/021042

Inventors:

Peter J. Burke - Irvine CA, US
Steffen McKernan - San Clemente CA, US
Dawei Wang - Irvine CA, US
Zhen Yu - Irvine CA, US

Assignee:

RF Nano Corporation - Newport Beach CA

International Classification:

H01L 29/66

US Classification:

257192, 257236, 977742, 977936

Abstract:

A multifinger carbon nanotube field-effect transistor (CNT FET) is provided in which a plurality of nanotube top gated FETs are combined in a finger geometry along the length of a single carbon nanotube, an aligned array of nanotubes, or a random array of nanotubes. Each of the individual FETs are arranged such that there is no geometrical overlap between the gate and drain finger electrodes over the single carbon nanotube so as to minimize the Miller capacitance (Cgd) between the gate and drain finger electrodes. A low-K dielectric may be used to separate the source and gate electrodes in the multifinger CNT FET so as to further minimize the Miller capacitance between the source and gate electrodes.

US Patent:

8149170, Apr 3, 2012

Filed:

Dec 17, 2008

Appl. No.:

12/337473

Inventors:

Peter J. Burke - Irvine CA, US
Christopher Rutherglen - Tustin CA, US

Assignee:

The Regents of the University of California - oakland CA

International Classification:

H01Q 1/38

US Classification:

343700MS, 343848, 356 51

Abstract:

A carbon nano-tube based variable frequency patch antennas which utilizes a dense network of semiconducting carbon nanotubes as the antenna patch is provided. In preferred embodiments, the resonant frequency of the antenna can be tuned electrically by adjusting appropriate sections of its back-gate, thus altering the effective size of the patch antenna and radiation beam direction can be formed and stirred. In one embodiment, a patch antenna comprises a dense network or thick layer of semiconducting carbon nanotubes grown or deposited on an oxide layer to form a carbon nanotube patch and a partitioned backgate is positioned below the oxide layer with a ground-plane formed from a thin layer of metal. In other embodiments, a patch antenna includes an array of carbon nanotube patches and the ground-plane doubles as the backgate.

US Patent:

8279120, Oct 2, 2012

Filed:

Aug 12, 2005

Appl. No.:

11/573443

Inventors:

Peter J. Burke - Irvine CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

H01Q 1/38

US Classification:

343700MS, 343893, 343702

Abstract:

Communication to or from a nanodevice is provided with a nanostructure-based antenna, preferably formed from, but not limited to, a single wall nanotube (SWNT). Other nanostructure-based antennas include double walled nanotubes, semiconducting nanowires, metal nanowires and the like. The use of a nanostructure-based antenna eliminates the need to provide a physical communicative connection to the nanodevice, while at the same time allowing communication between the nanodevice and other nanodevices or outside systems, i. e. , systems larger than nanoscale such as those formed from semiconductor fabrication processes such as CMOS, GaAs, bipolar processes and the like.

US Patent:

8343581, Jan 1, 2013

Filed:

Apr 30, 2007

Appl. No.:

11/742032

Inventors:

Peter J. Burke - Irvine CA, US
Zhen Yu - Irvine CA, US

Assignee:

Regents of the University of California - Oakland CA

International Classification:

C23C 16/00

US Classification:

4272491, 977842, 977843, 977848

Abstract:

An improved method of synthesizing nanotubes that avoids the slow process and the impurities or defects that are usually encountered with regard to as-grown carbon nanotubes. In a preferred embodiment, nanotubes are synthesized from nanotubes providing a novel catalyst-free growth method for direct growth of single- or multi-walled, metallic or semiconducting nanotubes.