Patents Assigned to ZettaCore, Inc.
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Patent number: 8445695Abstract: A method of making a phosphono-substituted dipyrromethane comprises reacting an aldehyde or acetal having at least one phosphono group substituted thereon with pyrrole to produce a phosphono-substituted dipyrromethane; and wherein the phosphono is selected from the group consisting of dialkyl phosphono, diaryl phosphono, and dialkylaryl phosphono. Additional methods, intermediates and products are also described.Type: GrantFiled: August 29, 2012Date of Patent: May 21, 2013Assignees: North Carolina State University, ZettaCore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe, Kannan Muthukumaran, Arounaguiry Ambroise
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Patent number: 8278439Abstract: A method of making a phosphono-substituted dipyrromethane comprises reacting an aldehyde or acetal having at least one phosphono group substituted thereon with pyrrole to produce a phosphono-substituted dipyrromethane; and wherein the phosphono is selected from the group consisting of dialkyl phosphono, diaryl phosphono, and dialkylaryl phosphono. Additional methods, intermediates and products are also described.Type: GrantFiled: November 18, 2011Date of Patent: October 2, 2012Assignees: North Carolina State University, ZettaCore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe, Kannan Muthukumaran, Arounaguiry Ambroise
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Publication number: 20120125514Abstract: Embodiments of the present invention relates generally to the manufacture of printed circuit boards (PCB's) or printed wiring boards (PWB's), and particularly to methods for treating smooth copper surfaces to increase the adhesion between a copper surface and an organic substrate. More particularly, embodiments of the present invention related to methods of achieving improved bonding strength of PCBs without roughening the topography of the copper surface. The bonding interface between the treated copper and the resin layer of the PCB exhibits excellent resistance to heat, moisture, and chemicals involved in post-lamination process steps.Type: ApplicationFiled: July 6, 2010Publication date: May 24, 2012Applicant: ZettaCore, Inc.Inventors: Jen-Chieh Wei, Zhiming Liu, Steven Z. Shi, Werner G. Kuhr
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Patent number: 8173630Abstract: This invention provides redox-active molecules attached to polypodal (e.g., bipodal, tripodal, quadrapodal, pentapodal, etc.) tethers that can be used for attachment of the redox-active molecules to a substrate (e.g., an electrode). The tethered redox-active molecules are useful for the fabrication of memory devices.Type: GrantFiled: June 1, 2006Date of Patent: May 8, 2012Assignees: The Regents of the University of California, The North Carolina State University, Zettacore, Inc.Inventors: Jonathan S. Lindsey, David F. Bocian, Robert Loewe, Ignacio Sanchez, Werner G. Kuhr, Kisari Padmaja, Lingyun Wei
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Patent number: 8080653Abstract: A method of making a phosphono-substituted dipyrromethane comprises reacting an aldehyde or acetal having at least one phosphono group substituted thereon with pyrrole to produce a phosphono-substituted dipyrromethane; and wherein the phosphono is selected from the group consisting of dialkyl phosphono, diaryl phosphono, and dialkylaryl phosphono. Additional methods, intermediates and products are also described.Type: GrantFiled: May 28, 2009Date of Patent: December 20, 2011Assignees: North Carolina State University, Zettacore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe, Kannan Muthukumaran, Arounaguiry Ambroise
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Patent number: 7799598Abstract: Molecular memories, i.e., memories that incorporate molecules for charge storage, are disclosed. Molecular memory cells, molecular memory arrays, and electronic devices including molecular memory are also disclosed, as are processing systems and methods for manufacturing molecular memories. Methods of manufacturing molecular memories that enable semiconductor devices and interconnections to be manufactured monolithically with molecular memory are also disclosed.Type: GrantFiled: March 14, 2008Date of Patent: September 21, 2010Assignee: ZettaCore, Inc.Inventors: Werner G. Kuhr, Ritu Shrivastava, Antonio R. Gallo, Kenneth J. Mobley, Tom DeBolske
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Patent number: 7737433Abstract: The electronic properties of molecular junctions of the general type carbon/molecule/TiO2/Au as examples of “molecular heterojunctions” consisting of a molecular monolayer and a semiconducting oxide. Junctions containing fluorene bonded to pyrolyzed photoresist film (PPF) were compared to those containing Al2O3 instead of fluorene, and those with only the TiO2 layer. The responses to voltage sweep and pulse stimulation were strongly dependent on junction composition and temperature. A transient current response lasting a few milliseconds results from injection and trapping of electrons in the TiO2 layer, and occurred in all three junction types studied. Conduction in PPF/TiO2/Au junctions is consistent with space charge limited conduction at low voltage, then a sharp increase in current once the space charge fills all the traps. With fluorene present, there is a slower, persistent change in junction conductance which may be removed by a reverse polarity pulse.Type: GrantFiled: September 28, 2006Date of Patent: June 15, 2010Assignees: The Ohio State University Research Foundation, Zettacore, Inc.Inventors: Richard L. McCreery, Kenneth J. Mobley, Jing Wu
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Patent number: 7718794Abstract: Porphyrin compounds having a surface attachment group coupled thereto at the 5 position are described. The surface attachment group has the formula: wherein R is —CHCH2 or —CCH and Ar is an aromatic group. Methods and intermediates useful for making such compounds are also described.Type: GrantFiled: March 20, 2008Date of Patent: May 18, 2010Assignees: North Carolina State University, ZettaCore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe
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Patent number: 7695756Abstract: A tool for manufacturing molecular electronic devices having a coating unit contained in a controlled ambient environment. The coating unit is coupled to a source of active device molecules in solution. The coating unit is configured to apply a selected quantity of the solution to a surface of a substrate and the process tool processes the coated substrate in conditions that cause the active device molecules to attach to active areas of the substrate.Type: GrantFiled: April 29, 2004Date of Patent: April 13, 2010Assignee: ZettaCore, Inc.Inventors: Antonio R. Gallo, Werner G. Kuhr
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Patent number: 7642546Abstract: According to some embodiments, an article of manufacture comprises a substrate; a molecular layer on the substrate comprising at least one charge storage molecule coupled to the substrate by a molecular linker; a solid barrier dielectric layer directly on the molecular layer; and a conductive layer directly on the solid barrier dielectric layer. In some embodiments, the solid barrier dielectric layer is configured to provide a voltage drop across the molecular layer that is greater than a voltage drop across the solid barrier dielectric layer when a voltage is applied to the conductive layer. In some embodiments, the molecular layer has a thickness greater than that of the solid barrier dielectric layer. The article of manufacture contains no electrolyte between the molecular layer and the conductive layer.Type: GrantFiled: November 30, 2006Date of Patent: January 5, 2010Assignees: Zettacore, Inc., North Carolina State UniversityInventors: Veena Misra, Ritu Shrivastava, Zhong Chen, Guru Mathur
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Patent number: 7553977Abstract: A method of making a phosphono-substituted dipyrromethane comprises reacting an aldehyde or acetal having at least one phosphono group substituted thereon with pyrrole to produce a phosphono-substituted dipyrromethane; and wherein the phosphono is selected from the group consisting of dialkyl phosphono, diaryl phosphono, and dialkylaryl phosphono. Additional methods, intermediates and products are also described.Type: GrantFiled: November 9, 2007Date of Patent: June 30, 2009Assignees: North Carolina State University, ZettaCore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe, Kannan Muthukumaran, Arounaguiry Ambroise
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Publication number: 20080269501Abstract: A method of making a phosphono-substituted dipyrromethane comprises reacting an aldehyde or acetal having at least one phosphono group substituted thereon with pyrrole to produce a phosphono-substituted dipyrromethane; and wherein the phosphono is selected from the group consisting of dialkyl phosphono, diaryl phosphono, and dialkylaryl phosphono. Additional methods, intermediates and products are also described.Type: ApplicationFiled: November 9, 2007Publication date: October 30, 2008Applicants: North Carolina State University, ZettaCore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe, Kannan Muthukumaran, Arounaguiry Ambroise
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Publication number: 20080209876Abstract: A solvent composition comprising an organic solvent; dispersed nanoparticles; and a non-volatile electrolyte.Type: ApplicationFiled: February 7, 2008Publication date: September 4, 2008Applicant: Zettacore, Inc.Inventor: Seth A. Miller
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Publication number: 20080194839Abstract: Porphyrin compounds having a surface attachment group coupled thereto at the 5 position are described. The surface attachment group has the formula: wherein R is —CHCH2 or —CCH and Ar is an aromatic group. Methods and intermediates useful for making such compounds are also described.Type: ApplicationFiled: March 20, 2008Publication date: August 14, 2008Applicants: North Carolina State University, ZettaCore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe
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Patent number: 7378520Abstract: Porphyrin compounds having a surface attachment group coupled thereto at the 5 position are described. The surface attachment group has the formula: wherein R is —CHCH2 or —CCH and Ar is an aromatic group. Methods and intermediates useful for making such compounds are also described.Type: GrantFiled: July 8, 2004Date of Patent: May 27, 2008Assignees: North Carolina State University, ZettaCore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe
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Patent number: 7358113Abstract: Molecular memories, i.e., memories that incorporate molecules for charge storage, are disclosed. Molecular memory cells, molecular memory arrays, and electronic devices including molecular memory are also disclosed, as are processing systems and methods for manufacturing molecular memories. Methods of manufacturing molecular memories that enable semiconductor devices and interconnections to be manufactured monolithically with molecular memory are also disclosed.Type: GrantFiled: April 29, 2005Date of Patent: April 15, 2008Assignee: Zettacore, Inc.Inventors: Ritu Shrivastava, Antonio R. Gallo, Kenneth J. Mobley, Tom DeBolske
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Patent number: 7324385Abstract: Molecular memories, i.e., memories that incorporate molecules for charge storage, are disclosed. Molecular memory cells, molecular memory arrays, and electronic devices including molecular memory are also disclosed, as are processing systems and methods for manufacturing molecular memories. Methods of manufacturing molecular memories that enable semiconductor devices and interconnections to be manufactured monolithically with molecular memory are also disclosed.Type: GrantFiled: April 29, 2005Date of Patent: January 29, 2008Assignee: Zettacore, Inc.Inventors: J. Kenneth Mobley, Werner Kuhr
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Patent number: 7314941Abstract: A method of making a phosphono-substituted dipyrromethane comprises reacting an aldehyde or acetal having at least one phosphono group substituted thereon with pyrrole to produce a phosphono-substituted dipyrromethane; and wherein the phosphono is selected from the group consisting of dialkyl phosphono, diaryl phosphono, and dialkylaryl phosphono. Additional methods, intermediates and products are also described.Type: GrantFiled: October 27, 2006Date of Patent: January 1, 2008Assignees: North Carolina State University, ZettaCore, Inc.Inventors: Jonathan S. Lindsey, Robert S. Loewe, Kannan Muthukumaran, Arounaguiry Ambroise
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Patent number: 7307870Abstract: A molecular memory element comprising a switching device; at least a first bit line and a first word line coupled to said switching device; and an array of storage locations, each coupled to a bit line and a word line, said elements comprising a first electrode with storage molecules comprising redox active molecules, and said array comprising a second electrode.Type: GrantFiled: October 7, 2005Date of Patent: December 11, 2007Assignee: Zettacore, Inc.Inventors: Werner G. Kuhr, Antonio R. Gallo
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Publication number: 20070090348Abstract: The electronic properties of molecular junctions of the general type carbon/molecule/TiO2/Au as examples of “molecular heterojunctions” consisting of a molecular monolayer and a semiconducting oxide. Junctions containing fluorene bonded to pyrolyzed photoresist film (PPF) were compared to those containing Al2O3 instead of fluorene, and those with only the TiO2 layer. The responses to voltage sweep and pulse stimulation were strongly dependent on junction composition and temperature. A transient current response lasting a few milliseconds results from injection and trapping of electrons in the TiO2 layer, and occurred in all three junction types studied. Conduction in PPF/TiO2/Au junctions is consistent with space charge limited conduction at low voltage, then a sharp increase in current once the space charge fills all the traps. With fluorene present, there is a slower, persistent change in junction conductance which may be removed by a reverse polarity pulse.Type: ApplicationFiled: September 28, 2006Publication date: April 26, 2007Applicants: The Ohio State University Research Foundation, ZettaCore, Inc.Inventors: Richard McCreery, Kenneth Mobley, Jing Wu