Patents by Inventor Robert A. Street

Robert A. Street has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140000108
    Abstract: A method of forming a three-dimensional electronic device includes forming at least one electronic device on a two-dimensional, flexible substrate, the electronic device being formed according to a three-dimensional structure, cutting the two-dimensional, flexible substrate, the cuts being located to allow the two-dimensional substrate to be shaped, the cuts having at least one stress relief feature, and shaping the two-dimensional, flexible substrate to form the three-dimensional structure, the stress relief features arranged to alleviate stress in the three-dimensional structure.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 2, 2014
    Inventors: WILLIAM S. WONG, BRENT S. KRUSOR, ROBERT A. STREET
  • Patent number: 8492876
    Abstract: A method of forming a three-dimensional electronic device includes forming at least one electronic device on a two-dimensional, flexible substrate, the electronic device being formed according to a three-dimensional structure, cutting the two-dimensional, flexible substrate, the cuts being located to allow the two-dimensional substrate to be shaped, the cuts having at least one stress relief feature, and shaping the two-dimensional, flexible substrate to form the three-dimensional structure, the stress relief features arranged to alleviate stress in the three-dimensional structure.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: July 23, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventors: William S. Wong, Brent S. Krusor, Robert A. Street
  • Publication number: 20130157447
    Abstract: A method can include depositing a thin metal film on a substrate of a sample, establishing a metal island on the substrate by patterning the thin metal film, and annealing the sample to de-wet the metal island and form a metal droplet from the metal island. The method can also include growing a nanowire on the substrate using the metal droplet as a catalyst, depositing a thin film of a semiconductor material on the sample, annealing the sample to allow for lateral crystallization to form a crystal grain, and patterning the crystal grain to establish a crystal island. An electronic device can be fabricated using the crystal island.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Robert A. Street, Sourobh Raychaudhuri
  • Publication number: 20130115846
    Abstract: A first side has a first surface on which is located a material, at least a portion of which is to be formed into at least one tip. A second side has a second surface which is heated. At least one of the first and second surfaces being moved so material located on the first surface comes into physical contact with the second surface. Then at least one of the first side and the second side are moved, wherein the physical contact between the material and the second surface is maintained, causing the material to stretch between the second surface and the first surface, generating at least one capillary bridge. Movement is continued until the physical contact between the material and the second surface is broken resulting in the formation of at least one sharp conductive tip.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 9, 2013
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Sanjiv Sambandan, John E. Northrup, Gregory L. Whiting, Robert A. Street
  • Patent number: 8430705
    Abstract: A first side has a first surface on which is located a material, at least a portion of which is to be formed into at least one tip. A second side has a second surface which is heated. At least one of the first and second surfaces being moved so material located on the first surface comes into physical contact with the second surface. Then at least one of the first side and the second side are moved, wherein the physical contact between the material and the second surface is maintained, causing the material to stretch between the second surface and the first surface, generating at least one capillary bridge. Movement is continued until the physical contact between the material and the second surface is broken resulting in the formation of at least one sharp conductive tip.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: April 30, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Sanjiv Sambandan, John E. Northrup, Gregory L. Whiting, Robert A. Street
  • Patent number: 8411075
    Abstract: A pixel circuit including a first transistor; a second transistor, the first transistor and the second transistor serially coupled between a first power supply terminal and a second power supply terminal; and a first capacitor coupled between a gate of the first transistor and a gate of the second transistor, and an electronic sheet including the same.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: April 2, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Sanjiv Sambandan, William S. Wong, Robert A. Street
  • Patent number: 8405832
    Abstract: A compact, optical measurement system has a non-flat detector array having multiple detector elements arranged on a flexible substrate in a monolithic fashion, one or more illumination sources arranged to provide more than one angle of incidence of light on a subject being measured, and a detection system in electrical communication with the detector array, the detection system arranged to receive inputs from the detector array and provide a measurement from the inputs. A method of measuring reflectance of a surface includes placing the surface adjacent a hemispherical detector array, illuminating the surface from a predetermined angle of incidence, simultaneously detecting reflectance at multiple emission angles using the hemispherical detector array, and repeating the illuminating and detecting processes at different angles of incidence. Optional arrays of lenses, baffles and filters may be employed by the system.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: March 26, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Philipp Helmut Schmaelzle, Robert A. Street
  • Patent number: 8368731
    Abstract: Embodiments pertain to a novel imaging member, namely, an electrostatic latent image generating member, and methods for using the same, that can generate an electrostatic latent image digitally with fewer steps and without using a raster output scanner (ROS) or free charge carriers. Embodiments provide a novel way of generating an electrostatic latent image without the shortfalls suffered by current photoreceptors, such as for example, charge mobility issues, unstable cycling, surface wear, lateral charge migration and sensitivity to light shock.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: February 5, 2013
    Assignees: Xerox Corporation, Palo Alto Research Center Incorporated
    Inventors: Richard A. Klenkler, Gregory McGuire, Johann Junginger, Vladislav Skorokhod, Robert Street
  • Patent number: 8354628
    Abstract: A luminescent solar concentrator including a light-guiding slab containing a luminescent material that generates light emissions in response to received sunlight, spaced-apart outcoupling structures that provide a distributed outcoupling of the light emissions through predetermined locations on one of the “broadside” (e.g., upper or lower) surfaces of the light-guiding slab, and optical elements positioned to redirect the outcoupled light emissions such that the light emissions are concentrated onto a predetermined target (e.g., a PV cell). Each optical element includes a collimating surface portion and optional returner surface.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: January 15, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Philipp H. Schmaelzle, Robert A. Street
  • Publication number: 20130001689
    Abstract: A textured thin film transistor is comprised of an insulator sandwiched between a textured gate electrode and a semi-conductor. A source electrode and drain electrode are fabricated on a surface of the semi-conductor. The textured gate electrode is fabricated such that a surface is modified in its texture and/or geometry, such modifications affecting the transistor current.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Sanjiv Sambandan, Robert A. Street
  • Patent number: 8269219
    Abstract: A method is used to form a self-aligning thin film transistor. The thin film transistor includes a gate contact formed with a state-switchable material, and a dielectric layer to isolate the gate contact. A source-drain layer, which includes a source contact, and a drain contact are formed with a source-drain material. An area of the gate contact is exposed to a form of energy, wherein the energy transforms a portion of the state switchable material from a non-conductive material to a conductive material, the conductive portion defining the gate contact. A semiconductor material is formed between the source contact and the drain contact.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 18, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventor: Robert A. Street
  • Patent number: 8268725
    Abstract: A modified coffee-stain method for producing self-organized line structures and other very fine features that involves disposing a solution puddle on a target substrate, and then controlling the peripheral boundary shape of the puddle using a control structure that contacts the puddle's upper surface. The solution is made up of a fine particle solute dispersed in a liquid solvent wets and becomes pinned to both the target substrate and the control structure. The solvent is then caused to evaporate at a predetermined rate such that a portion of the solute forms a self-organized “coffee-stain” line structure on the target substrate surface that is contacted by the peripheral puddle boundary. The target structure is optionally periodically raised to generate parallel lines that are subsequently processed to form, e.g., TFTs for large-area electronic devices.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: September 18, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Sanjiv Sambandan, Robert A. Street, Ana Claudia Arias
  • Publication number: 20120164781
    Abstract: A disordered nanowire solar cell includes doped silicon nanowires disposed in a disordered nanowire mat, a thin (e.g., 50 nm) p-i-n coating layer formed on the surface of the silicon nanowires, and a conformal conductive layer disposed on the upper (e.g., n-doped) layer of the p-i-n coating layer. The disordered nanowire mat is grown from a seed layer using VLS processing at a high temperature (e.g., 450° C.), whereby the crystalline silicon nanowires assume a random interwoven pattern that enhances light scattering. Light scattered by the nanowires is absorbed by p-i-n layer, causing, e.g., electrons to pass along the nanowires to the first electrode layer, and holes to pass through the conformal conductive layer to an optional upper electrode layer. Fabrication of the disordered nanowire solar cell is large-area compatible.
    Type: Application
    Filed: March 1, 2012
    Publication date: June 28, 2012
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Robert A. Street, William S. Wong
  • Patent number: 8198127
    Abstract: A memory cell array including a data line; a capacitor; and a transistor coupled between the data line and the capacitor. At least one of the capacitor and the transistor includes a material with a mutable electrical characteristic. A memory cell array including a first transistor coupled between a first node, a second node, and a third node; and a second transistor coupled between the second node and a fourth node. The first transistor includes a material with a mutable electrical characteristic.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: June 12, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventors: William S. Wong, Sanjiv Sambandan, Tse Nga Ng, Robert A. Street
  • Publication number: 20120107786
    Abstract: A method is provided for creating a foundational instructional design model for shareable content object (SCO) by pre-defining a semantically structured reusable learning type (RLT), and joining individual or repeated RLT's with sequence or choice indicators to form an instructional design model. The instructional design model is itself a semantically structured document that can be used and reused to create SCOs.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Applicant: Agile.net Inc.
    Inventors: Doug Brian Wallace, Isobel Sarah Jane Wallace, Steve Joseph Horvath, Kimberly Lianne Levo, Campbell James Macmillan, Smarandita Andreea Putinelu, Radu Pogaceanu, Joel Benjamin Aufgang, Dale Robert Street
  • Patent number: 8158973
    Abstract: An organic non-volatile memory array including multiple pixels and associated signal lines that are disposed on and between a substrate, a single ferroelectric dielectric layer, and a single organic dielectric layer, where each pixel includes a ferroelectric field-effect transistor (FeFET) and at least one organic thin-film field effect transistor (FET) that are connected to associated signal lines in a way that facilitates addressable reading and writing to the FeFET of a selected pixel without disturbing the data stored in adjacent pixels. Analog data storage in the FeFET array is also introduced that does not require analog-to-digital conversion of the stored data.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: April 17, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Tse Nga Ng, Ana C. Arias, Sanjiv Sambandan, Robert A. Street, Jurgen H. Daniel
  • Patent number: 8158465
    Abstract: A “vertical” coffee-stain method for producing self-organized line structures and other very fine features that involves disposing a target structure in a solution made up of a fine particle solute dispersed in a liquid solvent such that a “waterline” is formed by the upper (liquid/air) surface of the solution on a targeted linear surface region of the substrate. The solvent is then caused to evaporate at a predetermined rate such that a portion of the solute forms a self-organized “coffee-stain” line structure on the straight-line portion of the substrate surface contacted by the receding waterline. The substrate and staining solution are selected such that the liquid solvent has a stronger attraction to the substrate surface than to itself to produce the required pinning and upward curving waterline. The target structure is optionally periodically raised to generate parallel lines that are subsequently processed to form, e.g., TFTs for large-area electronic devices.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: April 17, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Sanjiv Sambandan, Robert A. Street, Ana Claudia Arias
  • Publication number: 20120069122
    Abstract: Embodiments pertain to a novel imaging member, namely, an electrostatic latent image generating member, and methods for using the same, that can generate an electrostatic latent image digitally with fewer steps and without using a raster output scanner (ROS) or free charge carriers. Embodiments provide a novel way of generating an electrostatic latent image without the shortfalls suffered by current photoreceptors, such as for example, charge mobility issues, unstable cycling, surface wear, lateral charge migration and sensitivity to light shock.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Applicants: PALO ALTO RESEARCH CENTER INCORPORATED, XEROX CORPORATION
    Inventors: Richard A. Klenkler, Gregory McGuire, Johann Junginger, Vladislav Skorokhod, Robert Street
  • Patent number: 8120232
    Abstract: A device has a substrate, a piezo polymer layer arranged adjacent the substrate, a first electrode in contact with a first side of the layer, and a second electrode arranged adjacent the first electrode, such that when the piezo layer flexes, the first and second electrodes are arranged to detect one of a change in voltage or resistance, wherein at least one of the piezo polymer layer or the electrodes are deposited by printing. A method including depositing a spacer layer onto a substrate, depositing a piezo polymer layer onto the substrate, patterning an array of first electrodes in contact with the piezo polymer layer, and patterning an array of second electrodes adjacent the array of first electrodes, wherein depositing includes one of printing and laminating and pattering includes one of printing and etching.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: February 21, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Jurgen H. Daniel, Ana C. Arias, Robert A. Street
  • Publication number: 20120037992
    Abstract: A method is used to form a self-aligning thin film transistor. The thin film transistor includes a gate contact formed with a state-switchable material, and a dielectric layer to isolate the gate contact. A source-drain layer, which includes a source contact, and a drain contact are formed with a source-drain material. An area of the gate contact is exposed to a form of energy, wherein the energy transforms a portion of the state switchable material from a non-conductive material to a conductive material, the conductive portion defining the gate contact. A semiconductor material is formed between the source contact and the drain contact.
    Type: Application
    Filed: October 25, 2011
    Publication date: February 16, 2012
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventor: Robert A. Street