Patents by Inventor Madhusudan Krishnan Iyengar

Madhusudan Krishnan Iyengar 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: 10468359
    Abstract: The subject matter of this specification generally relates to electronic packages. In some implementations, a lidless electronic package includes a substrate having a surface and a die disposed on the surface of the substrate. The die has an outside perimeter, a bottom surface adjacent to the surface of the substrate, and a top surface. The electronic package includes a stiffener disposed on the surface of the substrate. The stiffener includes a first surface that is a first distance from the surface of the substrate and a second surface disposed between the die and the first surface. The first distance is greater than a distance between the surface of the substrate and the top surface of the die. The second surface is a second distance from the surface of the substrate that is less than the distance between the surface of the substrate and the top surface of the die.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: November 5, 2019
    Assignee: Google LLC
    Inventors: William Edwards, Erick Tuttle, Madhusudan Krishnan Iyengar, Yuan Li, Jorge Padilla, Woon-Seong Kwon, TeckGyu Kang
  • Publication number: 20190327860
    Abstract: A data center cooling system includes a server rack sub-assembly that includes a motherboard mounted on a support member and a heat generating electronic devices mounted on the a motherboard; a cold plate positioned in thermal communication with at least a portion of the heat generating electronic devices, the cold plate configured to receive a flow of a cooling liquid circulated through a supply conduit fluidly coupled to a liquid inlet of the cold plate, through the cold plate, and through a return conduit fluidly coupled to a liquid outlet of the cold plate; and a modulating control valve attached to either of the motherboard or the support member and positioned in either of the supply conduit or the return conduit, the modulating control valve configured to adjust a rate of the flow of the cooling liquid based on an operating condition of at least one of the heat generating electronic devices.
    Type: Application
    Filed: April 20, 2018
    Publication date: October 24, 2019
    Inventors: William Edwards, Madhusudan Krishnan Iyengar, Sundar Rajan, Jorge Padilla, Norman Paul Jouppi
  • Publication number: 20190327859
    Abstract: A server tray package includes a motherboard assembly that includes a plurality of data center electronic devices, the plurality of data center electronic devices including at least one heat generating processor device; and a liquid cold plate assembly. The liquid cold plate assembly includes a base portion mounted to the motherboard assembly, the base portion and motherboard assembly defining a volume that at least partially encloses the plurality of data center electronic devices; and a top portion mounted to the base portion and including a heat transfer member shaped to thermally contact the heat generating processor device, the heat transfer member including an inlet port and an outlet port that are in fluid communication with a cooling liquid flow path defined through the heat transfer member.
    Type: Application
    Filed: April 19, 2018
    Publication date: October 24, 2019
    Inventors: Madhusudan Krishnan Iyengar, Christopher Gregory Malone, Yuan Li, Jorge Padilla, Woon Seong Kwon, Teckgyu Kang, Norman Paul Jouppi
  • Publication number: 20190237411
    Abstract: The subject matter of this specification generally relates to electronic packages. In some implementations, a lidless electronic package includes a substrate having a surface and a die disposed on the surface of the substrate. The die has an outside perimeter, a bottom surface adjacent to the surface of the substrate, and a top surface. The electronic package includes a stiffener disposed on the surface of the substrate. The stiffener includes a first surface that is a first distance from the surface of the substrate and a second surface disposed between the die and the first surface. The first distance is greater than a distance between the surface of the substrate and the top surface of the die. The second surface is a second distance from the surface of the substrate that is less than the distance between the surface of the substrate and the top surface of the die.
    Type: Application
    Filed: August 23, 2018
    Publication date: August 1, 2019
    Inventors: William Edwards, Erick Tuttle, Madhusudan Krishnan Iyengar, Yuan Li, Jorge Padilla, Woonseong Kwon, TeckGyu Kang
  • Patent number: 10083920
    Abstract: The subject matter of this specification generally relates to electronic packages. In some implementations, a lidless electronic package includes a substrate having a surface and a die disposed on the surface of the substrate. The die has an outside perimeter, a bottom surface adjacent to the surface of the substrate, and a top surface. The electronic package includes a stiffener disposed on the surface of the substrate. The stiffener includes a first surface that is a first distance from the surface of the substrate and a second surface disposed between the die and the first surface. The first distance is greater than a distance between the surface of the substrate and the top surface of the die. The second surface is a second distance from the surface of the substrate that is less than the distance between the surface of the substrate and the top surface of the die.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: September 25, 2018
    Assignee: Google LLC
    Inventors: William Edwards, Erick Tuttle, Madhusudan Krishnan Iyengar, Yuan Li, Jorge Padilla, Woon Seong Kwon, TeckGyu Kang
  • Patent number: 9448599
    Abstract: Technology is provided for a high-density storage server chassis. The storage server chassis comprises a frame and an opposed pair of support ledges disposed in the frame and positioned to support a storage device therebetween. The support ledges are disposed on corresponding partitions mounted in the frame. The support ledges include at least one protrusion positioned to space the storage device away from the support ledge thereby defining an air flow region between the storage device and the support ledge. The storage server chassis further comprises a retainer moveably attached to a corresponding partition and operative to retain a corresponding storage device in the frame, wherein the retainer is movable between an open position and a closed position.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: September 20, 2016
    Assignee: FACEBOOK, INC.
    Inventors: Jon Brian Ehlen, Madhusudan Krishnan Iyengar, Jason David Adrian
  • Patent number: 9408329
    Abstract: The principles described herein provide a server device having a cooling system that provides an efficient cooling of server device components. The cooling system can include a radiator block having air passageways that are oriented substantially orthogonal to the initial airflow path direction. In addition, the server device can include one or more baffles that create an airflow path that passes through the radiator block multiple times. Moreover, the server device can include various additional features that provide convenient access to electronic components within the server device without diminishing the effectiveness of the cooling system.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 2, 2016
    Assignee: FACEBOOK, INC.
    Inventors: Madhusudan Krishnan Iyengar, Jacob Na
  • Publication number: 20150293566
    Abstract: Technology is provided for a high-density storage server chassis. The storage server chassis comprises a frame and an opposed pair of support ledges disposed in the frame and positioned to support a storage device therebetween. The support ledges are disposed on corresponding partitions mounted in the frame. The support ledges include at least one protrusion positioned to space the storage device away from the support ledge thereby defining an air flow region between the storage device and the support ledge. The storage server chassis further comprises a retainer moveably attached to a corresponding partition and operative to retain a corresponding storage device in the frame, wherein the retainer is movable between an open position and a closed position.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 15, 2015
    Applicant: Facebook, Inc.
    Inventors: Jon Brian Ehlen, Madhusudan Krishnan Iyengar, Jason David Adrian
  • Publication number: 20150282389
    Abstract: The principles described herein provide a server device having a cooling system that provides an efficient cooling of server device components. The cooling system can include a radiator block having air passageways that are oriented substantially orthogonal to the initial airflow path direction. In addition, the server device can include one or more baffles that create an airflow path that passes through the radiator block multiple times. Moreover, the server device can include various additional features that provide convenient access to electronic components within the server device without diminishing the effectiveness of the cooling system.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 1, 2015
    Applicant: Facebook, Inc.
    Inventors: Madhusudan Krishnan Iyengar, Jacob Na