Paul S Weiss

US Patent:

6430511, Aug 6, 2002

Filed:

Jan 20, 2000

Appl. No.:

09/488339

Inventors:

James M Tour - Bellaire TX
Mark A Reed - Monroe CT
Jorge M Seminario - Columbia SC
David L Allara - State College PA
Paul S Weiss - State College PA

Assignee:

University of South Carolina - Columbia SC

International Classification:

G01N 3348

US Classification:

702 19, 702 20, 702 22, 435 6, 435 71, 703 13, 703 14, 703 15, 703 16, 708 1, 708100, 710100, 712 1, 713 1, 716 1

Abstract:

A molecular computer is formed by establishing arrays of spaced-apart input and output pins on opposing sides of a containment, injecting moleware in solution into the containment and then allowing the moleware to bridge the input and output pins. Moleware includes molecular alligator clip-bearing 2-, 3-, and molecular 4-, or multi-terminal wires, carbon nanotube wires, molecular resonant tunneling diodes, molecular switches, molecular controllers that can be modulated via external electrical or magnetic fields, massive interconnect stations based on single nanometer-sized particles, and dynamic and static random access memory (DRAM and SRAM) components composed of molecular controller/nanoparticle or fullerene hybrids. The current-voltage characteristics that result from the bridging between input and output arrays can be ascertained using another computer to identify the bundles of inputs and corresponding outputs that provide a truth table for the specific functions of the computer.

US Patent:

6597194, Jul 22, 2003

Filed:

Jun 15, 2001

Appl. No.:

09/882967

Inventors:

Paul S. Weiss - State College PA
Gregory S. McCarty - State College PA

Assignee:

The Penn State Research Foundation - University Park PA
Atolytics, Inc. - State College PA

International Classification:

G01R 3126

US Classification:

324765, 324763, 324764

Abstract:

A tunable high frequency AC scanning tunneling microscope (ACSTM) has been utilized to image and to record spectra for semiconductor characterization. A difference frequency mixing technique sensitive to dopant type and concentration is applied both to uniformly doped and to patterned semiconductor substrates. Uniformly doped silicon substrates were used to characterize the difference frequency spectral signature for both p- and n-type Si. Comparison of the measured difference frequency to such signature can be used for distinguishing between the two types of dopants in samples with unknown dopant type. Patterned substrates were then fabricated, and a spectroscopic imaging mode was used to map out dopant density at ultrahigh resolution, and to distinguish between areas of different concentration and different dopant type. By measuring samples of known dopant dosages to form a reference database, the unknown dosage of the same dopant in a portion of a sample may be found by comparing the difference signal measured from the sample to the reference database.

US Patent:

6835534, Dec 28, 2004

Filed:

Oct 26, 2001

Appl. No.:

10/032649

Inventors:

Paul S. Weiss - State College PA
Ray L. Funk - Port Matilda PA

Assignee:

The Penn State Research Foundation - University Park PA

International Classification:

G03F 700

US Classification:

430311, 430296, 430322, 430394, 427402

Abstract:

The present invention discloses devices and methods relating to patterning substrates using chemical functionalization. The methods include covering the surface of a substrate with a first plurality of molecules, selecting at least one internal bond from the plurality of molecules, and reacting the at least one internal bond to form at least one second functional group. Either or both of the functional groups can then be further reacted.

US Patent:

7015062, Mar 21, 2006

Filed:

Jun 4, 2001

Appl. No.:

09/873614

Inventors:

Paul S. Weiss - State College PA, US
Anat Hatzor - State College PA, US

Assignee:

The Penn State Research Foundation - University Park PA

International Classification:

H01L 51/40

US Classification:

438 99, 257 40

Abstract:

The present invention is a method and apparatus relating to manufacturing nanostructure patterns and components using molecular science. The method includes overlaying a multilayer organic molecule resist on at least a portion of a parent structure selectively deposited on a substrate, depositing a layer over the parent structure and in contact with at least a portion of the multilayer organic resist, and removing the multilayer organic molecule resist to leave a residual structure.

US Patent:

20020190759, Dec 19, 2002

Filed:

Mar 4, 2002

Appl. No.:

10/090211

Inventors:

James Tour - Houston TX, US
Jiping Yang - Houston TX, US
Philipp Harder - , US
David Allara - , US
Paul Weiss - State College PA, US

International Classification:

G01R001/00
H03D001/00
H03K005/00
H03K009/00

US Classification:

327/001000

Abstract:

A method for selectively assembling a molecular device on a substrate comprises contacting the first substrate with a solution containing molecular devices; impeding bonding of the molecular devices to the substrate such that application of a voltage potential to the substrate results in assembly of the molecular device on the substrate at a rate that is at least 1.5 times the rate of assembly of the molecular device on a voltage-neutral substrate; and applying a voltage potential to the substrate so as to cause the molecular devices to assemble on the substrate. More specifically, selective assembly can be obtained by providing a mixture comprising protected molecular devices in solution; removing protective groups from some of the molecular devices; activating the de-protected molecular devices; contacting the substrate with the solution; and allowing the activated devices to bond to the substrate such that the they assemble on the first substrate.

US Patent:

20070297216, Dec 27, 2007

Filed:

Apr 25, 2007

Appl. No.:

11/740170

Inventors:

James Tour - Bellaire TX, US
Jiping Yang - Houston TX, US
Philipp Harder - Hauenstein, DE
David Allara - State College PA, US
Paul Weiss - State College PA, US
Long Cheng - Sunnyvale CA, US
Paul Franzon - Holly Springs NC, US
David Nackashi - Raleigh NC, US

Assignee:

William Marsh Rice University - Houston TX

International Classification:

G11C 11/56
B05D 1/04
C25D 5/00
H01L 45/00
H01L 21/62
C25D 5/10

US Classification:

365151000, 205170000, 205080000, 257004000, 427472000, 438139000, 977750000, 977709000

Abstract:

A method for selectively assembling a molecular device on a substrate comprises contacting the first substrate with a solution containing molecular devices; impeding bonding of the molecular devices to the substrate such that application of a voltage potential to the substrate results in assembly of the molecular device on the substrate at a rate that is at least 1.5 times the rate of assembly of the molecular device on a voltage-neutral substrate; and applying a voltage potential to the substrate so as to cause the molecular devices to assemble on the substrate. A nanoscale computing device is described that includes a substrate, a pair of conductive input/output electrodes carried on this substrate and disposed in spaced-apart relationship and a substantially disordered assembly of nanowires formed on the substrate in a region between the electrodes, thereby forming at least one programmable conductive pathway between the pair of electrodes.

US Patent:

20130244037, Sep 19, 2013

Filed:

Mar 13, 2013

Appl. No.:

13/801349

Inventors:

Paul S. Weiss - Los Angeles CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

B01J 8/16

US Classification:

4284022, 264 4

Abstract:

Methods and assemblies for the construction of liquid-phase alloy nanoparticles are presented. Particle formation is directed by molecular self-assembly and assisted by sonication. In some embodiments, eutectic gallium-indium (EGaIn) nanoparticles are formed. In these embodiments, the bulk liquid alloy is ultrasonically dispersed, fast thiolate self-assembly at the EGaIn interface protects the material against oxidation. The assembly shell has been designed to include intermolecular hydrogen bonds, which induce surface strain, assisting in cleavage of the alloy particles to the nanoscale. X-ray diffraction and TEM analyses reveal that the nanoscale particles are in an amorphous or liquid phase, with no observed faceting.

US Patent:

58586660, Jan 12, 1999

Filed:

Aug 29, 1996

Appl. No.:

8/697871

Inventors:

Paul S. Weiss - Seattle WA

Assignee:

Biotechnology Research and Development Corporation - Peoria IL
The Penn State Research Foundation - University Park PA

International Classification:

C12Q 168
G01N 2726
G01N 3353
G01N 33552

US Classification:

435 6

Abstract:

A transducer for detecting biomolecules comprises a bottom and a top unit. The bottom unit has a set of parallel electrically conductive transmission lines thereon and probes attached to selected locations along each transmission line for binding with the target molecule. The top unit has thereon a second set of parallel transmission lines transverse to those on the bottom unit. By applying AC signals sequentially to the two sets of transmission lines, each of the probe locations at the intersection of the two transmission lines can be addressed and the response of the probe in an unfilled detector location or a complex formed by the probe and the target in a filled detector location can be measured. If the target has been labelled, than the label at each of the locations may also be detected. The device can also be used for measuring binding constants between the probe and the target and concentrations of target solutions.