Patents by Inventor Himanshu Pokharna

Himanshu Pokharna 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).

  • Patent number: 6837057
    Abstract: A docking station is provided with a thermoelectric module to generate cool air of a first temperature to be fed into a docked computer.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: January 4, 2005
    Assignee: Intel Corporation
    Inventors: Himanshu Pokharna, Eric DiStefano
  • Publication number: 20040261421
    Abstract: A tablet air cooling dock. In one embodiment, the dock includes a cooling unit a tablet cradle to receive and support a tablet computer. The cradle includes a passageway to receive air from the cooling unit and to provide the air to a vent of the tablet computer. In one embodiment, the tablet cradle is pivotally mounted to provide multiple viewing positions of the tablet computer.
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: Shawn S. McEuen, Brian Wilk, Himanshu Pokharna
  • Publication number: 20040223302
    Abstract: An apparatus including a heat pipe having an evaporator portion and a condenser portion, the evaporator portion to be thermally coupled to a heat generating component; and an actuation membrane unit to generate air movement in a direction of the condenser portion of the heat pipe.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 11, 2004
    Inventor: Himanshu Pokharna
  • Publication number: 20040201959
    Abstract: A technique for increasing the thermal capability of a portable electronic device includes transferring dissipated heat from a heat source disposed within the portable electronic device to at least one heat exchanger via at least one respective thermal transfer device. This may be in addition to another heat exchanger connected to the heat source via another thermal transfer device. At least one external fan is disposed adjacent to the at least one heat exchanger and dissipated heat transferred from the heat source to the at least one heat exchanger is removed via a flow of air generated by the at least one external fan. This may be in addition to an internal fan disposed adjacent the another heat exchanger to dissipate heat transferred from the heat source to the anther heat exchanger via flow of air generated by the internal fan. The at least one thermal transfer device may be a heat pipe. The portable electronic device may be a notebook computer and the heat source disposed therein may be a processor.
    Type: Application
    Filed: January 6, 2004
    Publication date: October 14, 2004
    Inventors: Himanshu Pokharna, Eric Distefano
  • Patent number: 6801430
    Abstract: An apparatus including an actuation membrane unit to generate air movement in a direction of a heat generating device to reduce an ambient temperature of the device.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: October 5, 2004
    Assignee: Intel Corporation
    Inventor: Himanshu Pokharna
  • Patent number: 6795311
    Abstract: A method and apparatus for cooling a portable computer system using a computer cooler with a cold plate that comes into contact with the portable computer system to transfer heat from the portable computer system to the environment surrounding the computer cooler.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: September 21, 2004
    Assignee: Intel Corporation
    Inventors: Himanshu Pokharna, Gregory M. Chrysler, Eric DiStefano
  • Publication number: 20040125562
    Abstract: A system and a method for using parallel heat exchangers to disperse heat from a mobile computing system are disclosed. In one possible embodiment, multiple heat exchangers are thermally coupled to a thermal attach platform. Multiple remote heat exchangers may be thermally coupled to the thermal attach platform using a heat pipe for each remote heat exchanger or a single heat pipe for all the remote heat exchangers. In one embodiment, the thermal attach platform may be a copper block or a heat pipe chamber. An air circulation unit may be coupled adjacent to each remote heat exchanger. Direct attachment heat exchangers may be directly attached to the thermal attach platform. An air circulation unit, such as a fan, may be coupled adjacent to the direct attachment heat exchanger, either vertically or horizontally.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 1, 2004
    Inventors: Eric DiStefano, Ravi S. Prasher, Himanshu Pokharna
  • Publication number: 20040123977
    Abstract: An external heat exchanger to be attached external to a computer to force air into an internal chamber of the computer, to reduce an ambient temperature within the chamber of the computer.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 1, 2004
    Inventors: Himanshu Pokharna, Eric DiStefano
  • Publication number: 20040123604
    Abstract: A docking station is provided with a thermoelectric module to generate cool air of a first temperature to be fed into a docked computer.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 1, 2004
    Inventors: Himanshu Pokharna, Eric DiStefano
  • Patent number: 6674640
    Abstract: A technique for increasing the thermal capability of a portable electronic device includes transferring dissipated heat from a heat source disposed within the portable electronic device to at least one heat exchanger via at least one respective thermal transfer device. This may be in addition to another heat exchanger connected to the heat source via another thermal transfer device. At least one external fan is disposed adjacent to the at least one heat exchanger and dissipated heat transferred from the heat source to the at least one heat exchanger is removed via a flow of air generated by the at least one external fan. This may be in addition to an internal fan disposed adjacent the another heat exchanger to dissipate heat transferred from the heat source to the anther heat exchanger via flow of air generated by the internal fan. The at least one thermal transfer device may be a heat pipe. The portable electronic device may be a notebook computer and the heat source disposed therein may be a processor.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: January 6, 2004
    Assignee: Intel Corporation
    Inventors: Himanshu Pokharna, Eric Distefano
  • Publication number: 20030221621
    Abstract: A method and apparatus for processing semiconductor substrates by reacting hydroxyl radicals with a precursor to cause the precursor to decompose and form a film which deposits on a substrate. Hydroxyl radicals, which are produced in a hydroxyl-ion producing apparatus outside of a chemical vapor deposition reactor, are mixed with a precursor to form a hydroxyl ions-precursor mixture. The hydroxyl ions-precursor mixture is introduced into the chemical vapor deposition reactor.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 4, 2003
    Applicant: Applied Materials Inc.
    Inventors: Himanshu Pokharna, Shankar Chandran, Srinivas D. Nemani, Chen-an Chen, Francimar Campana, Ellie Yieh, Li-Qun Xia
  • Patent number: 6646874
    Abstract: A computer system is described having additional cooling capabilities in a docking station for a mobile computer. The docking station includes P- and N-doped semiconductor thermoelectric components. The thermoelectric components are connected in series when the mobile computer engages with the docking station. A current flowing through a doped semiconductor causes heat to be transferred either in a direction of a current through the semiconductor component or in a direction opposite to a current in the thermoelectric components, depending on their doping. The thermoelectric components alternate from being P-doped to N-doped and the direction in which current flows alternates accordingly so that heat is transferred in one direction only. A heat pumping effect is created by the thermoelectric components which does not require high-pressure contact upon engagement of the mobile computer with the docking station.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: November 11, 2003
    Assignee: Intel Corporation
    Inventors: Himanshu Pokharna, Gregory M. Chrysler
  • Patent number: 6596343
    Abstract: A method for processing semiconductor substrates by reacting hydroxyl radicals with a precursor to cause the precursor to decompose and form a film which deposits on a substrate. Hydroxyl radicals, which are produced in a hydroxyl-ion producing apparatus outside of a chemical vapor deposition reactor, are mixed with a precursor to form a hydroxyl ions-precursor mixture. The hydroxyl ions-precursor mixture is introduced into the chemical vapor deposition reactor.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: July 22, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Himanshu Pokharna, Shankar Chandran, Srinivas D. Nemani, Chen-an Chen, Francimar Campana, Ellie Yieh, Li-Qun Xia
  • Patent number: 6595022
    Abstract: A computer system is described having a refrigeration cycle for a logic processor each utilizes first and second refrigeration cycles, each including a respective adsorber/desorber. Each adsorber/desorber is alternatingly cooled and heated. A liquid is adsorbed into the adsorber/desorber when being cooled and desorbed when the adsorber/desorber is heated. When the liquid is desorbed from the adsorber/desorber, and a checkvalve is closed, a pressure of the liquid increases. The adsorber/desorber together with the checkvalve act as a compressor in the respective refrigeration cycle. Heating and cooling is alternated so that one adsorber/desorber always adsorbs liquid while the other adsorber/desorber desorbes liquid. Thermal swings of the logic processor are thereby avoided.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: July 22, 2003
    Assignee: Intel Corporation
    Inventors: Himanshu Pokharna, Eric Distefano, Joseph D. Walters
  • Publication number: 20030123223
    Abstract: A method and apparatus for cooling a portable computer system using a computer cooler with a cold plate that comes into contact with the portable computer system to transfer heat from the portable computer system to the environment surrounding the computer cooler.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventors: Himanshu Pokharna, Gregory M. Chrysler, Eric DiStefano
  • Publication number: 20030017087
    Abstract: Method and apparatus for abating F2 from byproducts generated during cleaning of a processing chamber. F2 abatement is efficiently performed by directly injecting H2 in line with a foreline exiting the processing chamber. A tube which is highly resistant to oxidation and corrosive gases, even at high temperature, is connected in line with the foreline as part of the exhaust line of the processing chamber. A cooling jacket may be provided for cooling the tube, since the reaction between F2 and H2 is exothermic. A pressure monitoring arrangement may also be employed to insure that pressure within a hydrogen line, that feed the injection of H2 into the tube, does not exceed a predetermined pressure value.
    Type: Application
    Filed: July 18, 2001
    Publication date: January 23, 2003
    Applicant: Applied Materials Inc.
    Inventors: Himanshu Pokharna, Phong Le, Srinivas D. Nemani
  • Patent number: 6506994
    Abstract: A heating chamber assembly for heating or maintaining the temperature of at least one wafer, employs thick film heater plates stacked at an appropriate distance to form a slot between each pair of adjacent heater plate surfaces. The heating chamber assembly may be employed adjacent one or more processing chambers to form a preheat station separate from the processing chambers, or may be incorporated in the load lock of one or more such processing chambers. The thick film heater plates are more efficient and have a better response time than conventional heat plates. A chamber surrounding the stack of heater plates is pressure sealable and nay include a purge gas inlet for supply purge gas thereto under pressure. A door to the chamber opens to allow wafers to be inserted or removed and forms a pressure seal upon closing. The slots in the stack are alignable with the door for loading and unloading of wafers.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: January 14, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Yen-Kun Victor Wang, Mark Fodor, Chen-An Chen, Himanshu Pokharna, Son T. Nguyen, Kelly Fong, Inna Shmurun
  • Publication number: 20030002252
    Abstract: A technique for increasing the thermal capability of a portable electronic device includes transferring dissipated heat from a heat source disposed within the portable electronic device to at least one heat exchanger via at least one respective thermal transfer device. This may be in addition to another heat exchanger connected to the heat source via another thermal transfer device. At least one external fan is disposed adjacent to the at least one heat exchanger and dissipated heat transferred from the heat source to the at least one heat exchanger is removed via a flow of air generated by the at least one external fan. This may be in addition to an internal fan disposed adjacent the another heat exchanger to dissipate heat transferred from the heat source to the anther heat exchanger via flow of air generated by the internal fan. The at least one thermal transfer device may be a heat pipe. The portable electronic device may be a notebook computer and the heat source disposed therein may be a processor.
    Type: Application
    Filed: July 2, 2001
    Publication date: January 2, 2003
    Inventors: Himanshu Pokharna, Eric Distefano
  • Publication number: 20030000231
    Abstract: A computer system is described having a refrigeration cycle for a logic processor each utilizes first and second refrigeration cycles, each including a respective adsorber/desorber. Each adsorber/desorber is alternatingly cooled and heated. A liquid is adsorbed into the adsorber/desorber when being cooled and desorbed when the adsorber/desorber is heated. When the liquid is desorbed from the adsorber/desorber, and a checkvalve is closed, a pressure of the liquid increases. The adsorber/desorber together with the checkvalve act as a compressor in the respective refrigeration cycle. Heating and cooling is alternated so that one adsorber/desorber always adsorbs liquid while the other adsorber/desorber desorbes liquid.
    Type: Application
    Filed: June 27, 2001
    Publication date: January 2, 2003
    Inventors: Himanshu Pokharna, Eric Distefano, Joseph D. Walters
  • Publication number: 20020190051
    Abstract: A heating chamber assembly for heating or maintaining the temperature of at least one wafer, employs thick film heater plates stacked at an appropriate distance to form a slot between each pair of adjacent heater plate surfaces. The heating chamber assembly may be employed adjacent one or more processing chambers to form a preheat station separate from the processing chambers, or may be incorporated in the load lock of one or more such processing chambers. The thick film heater plates are more efficient and have a better response time than conventional heat plates. A chamber surrounding the stack of heater plates is pressure sealable and may include a purge gas inlet for supply purge gas thereto under pressure. A door to the chamber opens to allow wafers to be inserted or removed and forms a pressure seal upon closing. The slots in the stack are alignable with the door for loading and unloading of wafers.
    Type: Application
    Filed: June 15, 2001
    Publication date: December 19, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Yen-Kun Victor Wang, Mark Fodor, Chen-An Chen, Himanshu Pokharna, Son T. Nguyen, Kelly Fong, Inna Shmurun