Patents by Inventor Valluri Rao

Valluri Rao 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: 20090152684
    Abstract: The present invention describes a method including: providing a substrate; forming a buffer layer epitaxially over the substrate with a manufacture-friendly process; forming a bottom electrode epitaxially over the buffer layer; and forming a ferroelectric layer epitaxially over the bottom electrode.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 18, 2009
    Inventors: Li-Peng Wang, Qing Ma, Valluri Rao
  • Patent number: 7514942
    Abstract: Patterning of microelectronic and micromechanical devices is described using probes. In one example, a plurality of probe tips are driven into a processing layer of a substrate. The probe tips are carried by movable sleds. The sleds are moved to write patterns into the processing layer using the probes, and the processing layer is processed to form features on the substrate.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: April 7, 2009
    Assignee: Intel Corporation
    Inventor: Valluri Rao
  • Patent number: 7465578
    Abstract: The methods, compositions and apparatus disclosed herein are of use for nucleic acid sequence determination. The methods involve isolation of one or more nucleic acid template molecules and polymerization of a nascent complementary strand of nucleic acid, using a DNA or RNA polymerase or similar synthetic reagent. As the nascent strand is extended one nucleotide at a time, the disappearance of nucleotide precursors from solution is monitored by Raman spectroscopy or FRET. The nucleic acid sequence of the nascent strand, and the complementary sequence of the template strand, may be determined by tracking the order of incorporation of nucleotide precursors during the polymerization reaction. Certain embodiments concern apparatus comprising a reaction chamber and detection unit, of use in practicing the claimed methods. The methods, compositions and apparatus are of use in sequencing very long nucleic acid templates in a single sequencing reaction.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: December 16, 2008
    Assignee: Intel Corporation
    Inventors: Andrew Berlin, Steven J. Kirch, Gabi Neubauer, Valluri Rao, Mineo Yamakawa
  • Publication number: 20080105937
    Abstract: A Seek and Scan Probe (SSP) memory device is disclosed. The memory device includes a moving part having microelectromechanical (MEMS) structures fabricated on a first wafer and CMOS and memory medium components fabricating on a second wafer bonded to the first wafer.
    Type: Application
    Filed: December 28, 2007
    Publication date: May 8, 2008
    Inventors: Eyal Bar-Sadeh, Tsung-Kuan Chou, Valluri Rao, Krishnamurthy Murali
  • Patent number: 7364851
    Abstract: The methods, compositions and apparatus disclosed herein are of use for nucleic acid sequence determination. The methods involve isolation of one or more nucleic acid template molecules and polymerization of a nascent complementary strand of nucleic acid, using a DNA or RNA polymerase or similar synthetic reagent. As the nascent strand is extended one nucleotide at a time, the disappearance of nucleotide precursors from solution is monitored by Raman spectroscopy or FRET. The nucleic acid sequence of the nascent strand, and the complementary sequence of the template strand, may be determined by tracking the order of incorporation of nucleotide precursors during the polymerization reaction. Certain embodiments concern apparatus comprising a reaction chamber and detection unit, of use in practicing the claimed methods. The methods, compositions and apparatus are of use in sequencing very long nucleic acid templates in a single sequencing reaction.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: April 29, 2008
    Assignee: Intel Corporation
    Inventors: Andrew Berlin, Steven J. Kirch, Gabi Neubauer, Valluri Rao, Mineo Yamakawa
  • Patent number: 7358579
    Abstract: A microelectromechanical system switch may include a relatively stiff cantilevered beam coupled, on its free end, to a more compliant or flexible extension. A contact may be positioned at the free end of the cantilevered beam. The extension reduces the actuation voltage that is needed and compensates for the relative stiffness of the cantilevered beam in closing the switch. In opening the switch, the stiffness of the cantilevered beam may advantageously enable quicker operation which may be desirable in higher frequency situations.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 15, 2008
    Assignee: Intel Corporation
    Inventors: Qing Ma, Tsung-Kuan Allen Chou, Valluri Rao
  • Patent number: 7354788
    Abstract: A method is disclosed. The method includes fabricating microelectromechanical (MEMS) structures of a Seek and Scan Probe (SSP) memory device on a first wafer, and fabricating CMOS and memory medium components of the SSP memory device on a second wafer.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: April 8, 2008
    Assignee: Intel Corporation
    Inventors: Eyal Bar-Sadeh, Tsung-Kuan Chou, Valluri Rao, Krishnamurthy Murali
  • Publication number: 20080074126
    Abstract: Patterning of microelectronic and micromechanical devices is described using probes. In one example, a plurality of probe tips are driven into a processing layer of a substrate. The probe tips are carried by movable sleds. The sleds are moved to write patterns into the processing layer using the probes, and the processing layer is processed to form features on the substrate.
    Type: Application
    Filed: September 27, 2006
    Publication date: March 27, 2008
    Inventor: Valluri Rao
  • Publication number: 20080032297
    Abstract: The methods and apparatus disclosed herein concern nucleic acid sequencing by enhanced Raman spectroscopy. In certain embodiments of the invention, nucleotides are covalently attached to Raman labels before incorporation into a nucleic acid. In other embodiments, unlabeled nucleic acids are used. Exonuclease treatment of the nucleic acid results in the release of labeled or unlabeled nucleotides that are detected by Raman spectroscopy. In alternative embodiments of the invention, nucleotides released from a nucleic acid by exonuclease treatment are covalently cross-linked to nanoparticles and detected by surface enhanced Raman spectroscopy (SERS), surface enhanced resonance Raman spectroscopy (SERRS) and/or coherent anti-Stokes Raman spectroscopy (CARS). Other embodiments of the invention concern apparatus for nucleic acid sequencing.
    Type: Application
    Filed: February 9, 2007
    Publication date: February 7, 2008
    Applicant: INTEL CORPORATION
    Inventors: Xing Su, Andrew Berlin, Selena Chan, Steven Kirch, Tae-Woong Koo, Gabi Neubauer, Valluri Rao, Narayanan Sundararajan, Mineo Yamakawa
  • Patent number: 7291561
    Abstract: The present invention relates to a chip package that includes a semiconductor device and at least one micro electromechanical structure (MEMS) such that the semiconductor device and the MEMS form an integrated package. One embodiment of the present invention includes a semiconductor device, a first MEMS device disposed in a conveyance such as a film, and a second MEMS device disposed upon the semiconductor device through a via in the conveyance. The present invention also relates to a process of forming a chip package that includes providing a conveyance such as a tape automated bonding (TAB) structure, that may hold at least one MEMS device. The method is further carried out by disposing the conveyance over the active surface of the device in a manner that causes the at least one MEMS to communicate electrically to the active surface. Where appropriate, a sealing structure such as a solder ring may be used to protect the MEMS.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: November 6, 2007
    Assignee: Intel Corporation
    Inventors: Qing Ma, Peng Cheng, Valluri Rao
  • Publication number: 20070224629
    Abstract: A method and apparatus for forming a polymer array on a substrate suitable for synthesizing polymer sequences. This includes forming an array, each location of the array having at least one strand end, forming photosensitive protection on the strand ends, and selectively scanning and modulating at least one energy beam to expose a pattern on the photosensitive protection. In some embodiments, the method further includes removing a protective group from selected strand ends based on the exposed pattern. The method then includes adding a predetermined one or more polymeric subunits to the deprotected strand ends. In some embodiments the photosensitive protection includes a layer of photoresist to cover the strand ends. Some embodiments use an ultra-violet laser.
    Type: Application
    Filed: June 1, 2007
    Publication date: September 27, 2007
    Inventors: Valluri Rao, Mineo Yamakawa, Andrew Berlin
  • Patent number: 7245057
    Abstract: The invention relates to a microbeam oscillator. Tuning of the oscillator is carried out by addition or subtraction of material to an oscillator member in order to change the mass of the oscillator member.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: July 17, 2007
    Assignee: Intel Corporation
    Inventors: Qing Ma, Peng Cheng, Valluri Rao
  • Patent number: 7238477
    Abstract: The methods and apparatus disclosed herein concern nucleic acid sequencing by enhanced Raman spectroscopy. In certain embodiments of the invention, nucleotides are covalently attached to Raman labels before incorporation into a nucleic acid. In other embodiments, unlabeled nucleic acids are used. Exonuclease treatment of the nucleic acid results in the release of labeled or unlabeled nucleotides that are detected by Raman spectroscopy. In alternative embodiments of the invention, nucleotides released from a nucleic acid by exonuclease treatment are covalently cross-linked to nanoparticles and detected by surface enhanced Raman spectroscopy (SERS), surface enhanced resonance Raman spectroscopy (SERRS) and/or coherent anti-Stokes Raman spectroscopy (CARS). Other embodiments of the invention concern apparatus for nucleic acid sequencing.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: July 3, 2007
    Assignee: Intel Corporation
    Inventors: Xing Su, Andrew A. Berlin, Selena Chan, Steven J. Kirch, Tac-Woong Koo, Gabi Neubauer, Valluri Rao, Narayanan Sundararajan, Mineo Yamakawa
  • Publication number: 20070139140
    Abstract: Multiple FBARs may be manufactured on a single wafer and later diced. Ideally, all devices formed in a wafer would have the same resonance frequency. However, due to manufacturing variances, the frequency response of the FBAR devices may vary slightly across the wafer. An RF map may be created to determine zones over the wafer where FBARs in that zone all vary from a target frequency by a similar degree. A tuning layer may be deposited over the wafer. Lithographically patterned features to the tuning layer based on the zones identified by the RF map may be used to correct the FBARs to a target resonance frequency with the FBARs still intact on the wafer.
    Type: Application
    Filed: December 20, 2005
    Publication date: June 21, 2007
    Inventors: Valluri Rao, Theodore Doros, Qing Ma, Krishna Seshan, Li-Peng Wang
  • Publication number: 20070119582
    Abstract: An apparatus and system, as well as fabrication methods therefor, may include a thermal interface material comprised of an array of carbon nanotubes and a buffer layer disposed between the thermal interface material and one of a die or a heat spreader. In some embodiments the carbon nanotubes may be formed above a buffer layer formed above a surface of the head spreader.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Inventors: Yuegang Zhang, C. Garner, Andrew Berlin, Valluri Rao, Bryan White, Paul Koning
  • Publication number: 20070105132
    Abstract: The methods and apparatus disclosed herein are useful for detecting nucleotides, nucleosides, and bases and for nucleic acid sequence determination. The methods involve detection of a nucleotide, nucleoside, or base using surface enhanced Raman spectroscopy (SERS). The detection can be part of a nucleic acid sequencing reaction to detect uptake of a deoxynucleotide triphosphate during a nucleic acid polymerization reaction, such as a nucleic acid sequencing reaction. The nucleic acid sequence of a synthesized nascent strand, and the complementary sequence of the template strand, can be determined by tracking the order of incorporation of nucleotides during the polymerization reaction.
    Type: Application
    Filed: June 5, 2006
    Publication date: May 10, 2007
    Inventors: Andrew Berlin, Steven Kirch, Gabi Neubauer, Valluri Rao, Mineo Yamakawa
  • Patent number: 7168484
    Abstract: An apparatus and system, may include a thermal interface material comprised of an array of carbon nanotubes and a buffer layer disposed between the thermal interface material and one of a die or a heat spreader. In some embodiments the carbon nanotubes may be formed above a buffer layer formed above a surface of the heat spreader.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: January 30, 2007
    Assignee: Intel Corporation
    Inventors: Yuegang Zhang, C. Michael Garner, Andrew A. Berlin, Valluri Rao, Bryan M. White, Paul A. Koning
  • Patent number: 7167135
    Abstract: An antenna for a wireless device may be kept dynamically tuned to a desired center frequency to compensate for detuning which may be caused by environmental influences. A sensor provides a feedback signal to a controller to select an appropriate capacitance value from a variable capacitor to tune the antenna for the wireless device. The variable capacitor may comprise a plurality of fixed capacitors and MEMS switches arranged in parallel or may comprise a variable MEMS capacitor having a fixed lower plate and a flexible upper plate.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: January 23, 2007
    Assignee: Intel Corporation
    Inventors: Issy Kipnis, Valluri Rao, Balakrishnan Srinivasan, Joe Hayden, III
  • Publication number: 20070000305
    Abstract: An FBAR device may be chemically functionalized by depositing an interactive layer so that targeted chemicals are preferentially adsorbed. Such miniaturized chemical sensors may be combined with wireless network technology. For example, a chemical sensor may be integrated in a cell phone, PDA, a watch, or a car with wireless connection and GPS. Since such devices are widely populated, a national sensor network may be established. Consequently, a national toxicity map can be generated in real time. Detailed chemical information may be obtained, such as if a chemical is released by a source fixed on ground or by a moving object, or if is spread by explosives or by wind and so on.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Inventors: Qing Ma, Li-Peng Wang, Valluri Rao
  • Publication number: 20060290445
    Abstract: According to an embodiment of the present invention, a microelectromechanical system (MEMS) element tunes a resonator to a frequency.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 28, 2006
    Inventors: Jun Su, Dong Shim, Oing Ma, Valluri Rao