Patents by Inventor Ravindranath Mahajan

Ravindranath Mahajan 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: 20210328589
    Abstract: A programmable device may have logic circuitry formed in a top die and memory and specialized processing blocks formed in a bottom die, where the top die is stacked directly on top of the bottom die in a face-to-face configuration. The logic circuitry may include logic sectors, logic array blocks, logic elements, and other types of logic regions. The memory blocks may include large banks of multiport memory for storing data. The specialized processing blocks may include multipliers, adders, and other arithmetic components. The logic circuitry may access the memory and specialized processing blocks via an address encoded scheme. Configured in this way, the maximum operating frequency of the programmable device can be optimized such that critical paths will no longer need to traverse any unused memory and specialized processing blocks.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 21, 2021
    Inventors: Dheeraj Subbareddy, MD Altaf Hossain, Ankireddy Nalamalpu, Robert Sankman, Ravindranath Mahajan, Gregg William Baeckler
  • Publication number: 20210296225
    Abstract: An integrated circuit package comprising an integral structural member embedded within dielectric material and at least partially surrounding a keep-out zone of a co-planar package metallization layer. The integral structural member may increase stiffness of the package without increasing the package z-height. The structural member may comprise a plurality of intersecting elements. Individual structural elements may comprise conductive vias that are non-orthogonal to a plane of the package. An angle of intersection and thickness of the structural elements may be varied to impart more or less local or global rigidity to a package according to a particular package application. Intersecting openings may be patterned in a mask material by exposing a photosensitive material through a half-penta prism. Structural material may be plated or otherwise deposited into the intersecting openings.
    Type: Application
    Filed: March 23, 2020
    Publication date: September 23, 2021
    Applicant: Intel Corporation
    Inventors: Suddhasattwa Nad, Ravindranath Mahajan, Brandon Marin, Jeremy Ecton, Mohammad Mamunar Rahman
  • Publication number: 20210242104
    Abstract: A multi-chip unit suitable for chip-level packaging may include multiple IC chips that are interconnected through a metal redistribution structure, and that are directly bonded to an integrated heat spreader. Bonding of the integrated heat spreader to the multiple IC chips may be direct so that no thermal interface material (TIM) is needed, resulting in a reduced bond line thickness (BLT) and lower thermal resistance. The integrated heat spreader may further serve as a structural member of the multi-chip unit, allowing a second side of the redistribution structure to be further interconnected to a host by solder interconnects. The redistribution structure may be fabricated on a sacrificial interposer that may facilitate planarizing IC chips of differing thickness prior to bonding the heat spreader. The sacrificial interposer may be removed to expose the RDL for further interconnection to a substrate without the use of through-substrate vias.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Applicant: Intel Corporation
    Inventors: Debendra Mallik, Ravindranath Mahajan, Digvijay Raorane
  • Publication number: 20210235596
    Abstract: An integrated circuit assembly may be formed comprising an electronic substrate, at least one integrated circuit device electrically attached to the electronic substrate, a heat dissipation device comprising a main body portion and a resilient portion extending from the main body portion, wherein the resilient portion has a plurality of extensions, a thermal interface material between the at least one integrated circuit device and the heat dissipation device, and a stiffener attached to the electronic substrate, wherein at least a portion of the plurality of extensions of the resilient portion of the heat dissipation device are biased against the stiffener.
    Type: Application
    Filed: January 23, 2020
    Publication date: July 29, 2021
    Applicant: Intel Corporation
    Inventors: Aastha Uppal, Je-Young Chang, Ravindranath Mahajan
  • Patent number: 11070209
    Abstract: A programmable device may have logic circuitry formed in a top die and memory and specialized processing blocks formed in a bottom die, where the top die is stacked directly on top of the bottom die in a face-to-face configuration. The logic circuitry may include logic sectors, logic array blocks, logic elements, and other types of logic regions. The memory blocks may include large banks of multiport memory for storing data. The specialized processing blocks may include multipliers, adders, and other arithmetic components. The logic circuitry may access the memory and specialized processing blocks via an address encoded scheme. Configured in this way, the maximum operating frequency of the programmable device can be optimized such that critical paths will no longer need to traverse any unused memory and specialized processing blocks.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: July 20, 2021
    Assignee: Intel Corporation
    Inventors: Dheeraj Subbareddy, Md Altaf Hossain, Ankireddy Nalamalpu, Robert Sankman, Ravindranath Mahajan, Gregg William Baeckler
  • Publication number: 20210210478
    Abstract: Embodiments disclosed herein include electronic packages for optical to electrical switching. In an embodiment, an electronic package comprises a first package substrate and a second package substrate attached to the first package substrate. In an embodiment, a die is attached to the second package substrate. In an embodiment, a plurality of photonic engines are attached to a first surface and a second surface of the first package substrate. In an embodiment, the plurality of photonic engines are communicatively coupled to the die through the first package substrate and the second package substrate.
    Type: Application
    Filed: March 3, 2021
    Publication date: July 8, 2021
    Inventors: Susheel JADHAV, Juan DOMINGUEZ, Ankur AGRAWAL, Kenneth BROWN, Yi LI, Jing CHEN, Aditi MALLIK, Xiaoyu HONG, Thomas LILJEBERG, Andrew C. ALDUINO, Ling LIAO, David HUI, Ren-Kang CHIOU, Harinadh POTLURI, Hari MAHALINGAM, Lobna KAMYAB, Sasanka KANUPARTHI, Sushrutha Reddy GUJJULA, Saeed FATHOLOLOUMI, Priyanka DOBRIYAL, Boping XIE, Abiola AWUJOOLA, Vladimir TAMARKIN, Keith MEASE, Stephen KEELE, David SCHWEITZER, Brent ROTHERMEL, Ning TANG, Suresh POTHUKUCHI, Srikant NEKKANTY, Zhichao ZHANG, Kaiyuan ZENG, Baikuan WANG, Donald TRAN, Ravindranath MAHAJAN, Baris BICEN, Grant SMITH
  • Patent number: 11031288
    Abstract: Integrated passive components in a stacked integrated circuit package are described. In one embodiment an apparatus has a substrate, a first die coupled to the substrate over the substrate, the first die including a power supply circuit coupled to the substrate to receive power, a second die having a processing core and coupled to the first die over the first die, the first die being coupled to the power supply circuit to power the processing core, a via through the first die, and a passive device formed in the via of the first die and coupled to the power supply circuit.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 8, 2021
    Assignee: Intel Corporation
    Inventors: Sujit Sharan, Ravindranath Mahajan, Stefan Rusu, Donald S. Gardner
  • Patent number: 11011448
    Abstract: A multi-chip unit suitable for chip-level packaging may include multiple IC chips that are interconnected through a metal redistribution structure, and that are directly bonded to an integrated heat spreader. Bonding of the integrated heat spreader to the multiple IC chips may be direct so that no thermal interface material (TIM) is needed, resulting in a reduced bond line thickness (BLT) and lower thermal resistance. The integrated heat spreader may further serve as a structural member of the multi-chip unit, allowing a second side of the redistribution structure to be further interconnected to a host by solder interconnects. The redistribution structure may be fabricated on a sacrificial interposer that may facilitate planarizing IC chips of differing thickness prior to bonding the heat spreader. The sacrificial interposer may be removed to expose the RDL for further interconnection to a substrate without the use of through-substrate vias.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: May 18, 2021
    Assignee: Intel Corporation
    Inventors: Debendra Mallik, Ravindranath Mahajan, Digvijay Raorane
  • Publication number: 20210035881
    Abstract: A multi-chip unit suitable for chip-level packaging may include multiple IC chips that are interconnected through a metal redistribution structure, and that are directly bonded to an integrated heat spreader. Bonding of the integrated heat spreader to the multiple IC chips may be direct so that no thermal interface material (TIM) is needed, resulting in a reduced bond line thickness (BLT) and lower thermal resistance. The integrated heat spreader may further serve as a structural member of the multi-chip unit, allowing a second side of the redistribution structure to be further interconnected to a host by solder interconnects. The redistribution structure may be fabricated on a sacrificial interposer that may facilitate planarizing IC chips of differing thickness prior to bonding the heat spreader. The sacrificial interposer may be removed to expose the RDL for further interconnection to a substrate without the use of through-substrate vias.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 4, 2021
    Applicant: Intel Corporation
    Inventors: Debendra Mallik, Ravindranath Mahajan, Digvijay Raorane
  • Publication number: 20210005542
    Abstract: Embodiments disclosed herein include electronic packages and methods of forming electronic packages. In an embodiment, an electronic package comprises an interposer, where the interposer comprises a cavity that passes through the interposer, a through interposer via (TIV), and an interposer pad electrically coupled to the TIV. In an embodiment, the electronic package further comprises a nested component in the cavity, where the nested component comprises a component pad, and a die coupled to the interposer pad by a first interconnect and coupled to the component pad by a second interconnect. In an embodiment, the first interconnect and the second interconnect each comprise an intermediate pad, and a bump over the intermediate pad.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 7, 2021
    Inventors: Debendra MALLIK, Ravindranath MAHAJAN, Robert SANKMAN, Rahul MANEPALLI, Srinivas PIETAMBARAM
  • Publication number: 20200395313
    Abstract: Embodiments disclosed herein include electronic packages and methods of fabricating electronic packages. In an embodiment, an electronic package comprises an interposer, where a cavity passes through the interposer, and a nested component in the cavity. In an embodiment, the electronic package further comprises a die coupled to the interposer by a first interconnect and coupled to the nested component by a second interconnect. In an embodiment, the first and second interconnects comprise a first bump, a bump pad over the first bump, and a second bump over the bump pad.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 17, 2020
    Inventors: Debendra MALLIK, Ravindranath MAHAJAN, Robert SANKMAN, Shawna LIFF, Srinivas PIETAMBARAM, Bharat PENMECHA
  • Publication number: 20200286814
    Abstract: Embodiments disclosed herein include electronic packages and methods of forming such electronic packages. In an embodiment, the electronic package comprises a base substrate. The base substrate may have a plurality of through substrate vias. In an embodiment, a first die is over the base substrate. In an embodiment a first cavity is disposed into the base substrate. In an embodiment, the first cavity is at least partially within a footprint of the first die. In an embodiment, a first component is in the first cavity.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 10, 2020
    Inventors: Ravindranath MAHAJAN, Debendra MALLIK, Sujit SHARAN, Digvijay RAORANE
  • Publication number: 20200273811
    Abstract: IC package including a material preform comprising graphite. The material preform may have a thermal conductivity higher than that of other materials in the package and may therefore mitigate the formation of hot spots within an IC die during device operation. The preform may have high electrical conductivity suitable for EMI shielding. The preform may comprise a graphite sheet that can be adhered to a package assembly with an electrically conductive adhesive, applied, for example over an IC die surface and a surrounding package dielectric material. Electrical interconnects of the package may be coupled to the graphite sheet as an EMI shield. The package preform may be grounded to a reference potential through electrical interconnects of the package, which may be further coupled to a system-level ground plane. System-level thermal solutions may interface with the package-level graphite sheet.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 27, 2020
    Applicant: Intel Corporation
    Inventors: Debendra Mallik, Mitul Modi, Sanka Ganesan, Edvin Cetegen, Omkar Karhade, Ravindranath Mahajan, James C. Matayabas, Jr., Jan Krajniak, Kumar Singh, Aastha Uppal
  • Publication number: 20200227341
    Abstract: A heat exchange module, comprising an array of microchannels, where the array of microchannels extends in a first direction, and are separated from one another by a first sidewall. The array of microchannels is over a cold plate. A first array of fluid distribution channels is stacked over the array of microchannels and extend in a second direction that is substantially orthogonal to the first direction. The first array of fluid distribution channels extends from the first manifold and terminate between a first manifold and a second manifold. A second array of fluid distribution channels is stacked over the array of microchannels. The first array of fluid distribution channels and the second array of the fluid distribution channels are fluidically coupled to the microchannel array. A wall extends into the microchannel array below a second sidewall separating ones of the first array and ones of the second array of fluid distribution channels.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 16, 2020
    Applicant: Intel Corporation
    Inventors: Nicholas Neal, Je-Young Chang, Jae Kim, Ravindranath Mahajan
  • Publication number: 20200227332
    Abstract: An integrated circuit package may be formed having at least one heat dissipation structure within the integrated circuit package itself. In one embodiment, the integrated circuit package may include a substrate; at least one integrated circuit device, wherein the at least one integrated circuit device is electrically attached to the substrate; a mold material on the substrate and adjacent to the at least one integrated circuit device; and at least one heat dissipation structure contacting the at least one integrated circuit, wherein the at least one heat dissipation structure is embedded either within the mold material or between the mold material and the substrate.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 16, 2020
    Applicant: Intel Corporation
    Inventors: Kumar Abhishek Singh, Omkar Karhade, Nitin Deshpande, Mitul Modi, Edvin Cetegen, Aastha Uppal, Debendra Mallik, Sanka Ganesan, Yiqun Bai, Jan Krajniak, Manish Dubey, Ravindranath Mahajan, Ram Viswanath, James C. Matayabas, JR.
  • Publication number: 20200186149
    Abstract: A programmable device may have logic circuitry formed in a top die and memory and specialized processing blocks formed in a bottom die, where the top die is stacked directly on top of the bottom die in a face-to-face configuration. The logic circuitry may include logic sectors, logic array blocks, logic elements, and other types of logic regions. The memory blocks may include large banks of multiport memory for storing data. The specialized processing blocks may include multipliers, adders, and other arithmetic components. The logic circuitry may access the memory and specialized processing blocks via an address encoded scheme. Configured in this way, the maximum operating frequency of the programmable device can be optimized such that critical paths will no longer need to traverse any unused memory and specialized processing blocks.
    Type: Application
    Filed: February 12, 2020
    Publication date: June 11, 2020
    Applicant: Intel Corporation
    Inventors: Dheeraj Subbareddy, MD Altaf Hossain, Ankireddy Nalamalpu, Robert Sankman, Ravindranath Mahajan, Gregg William Baeckler
  • Publication number: 20200105639
    Abstract: Embodiments include a microelectronic device package structure having a first die on the substrate. One or more additional dice are on the first die, and a thermal electric cooler (TEC) is on the first die adjacent at least one of the one or more additional dice. A dummy die is on the TEC, wherein the dummy die is thermally coupled to the first die.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 2, 2020
    Applicant: Intel Corporation
    Inventors: Krishna Vasanth Valavala, Ravindranath Mahajan, Chandra Mohan Jha, Kelly Lofgreen, Weihua Tang
  • Patent number: 10601426
    Abstract: A programmable device may have logic circuitry formed in a top die and memory and specialized processing blocks formed in a bottom die, where the top die is stacked directly on top of the bottom die in a face-to-face configuration. The logic circuitry may include logic sectors, logic array blocks, logic elements, and other types of logic regions. The memory blocks may include large banks of multiport memory for storing data. The specialized processing blocks may include multipliers, adders, and other arithmetic components. The logic circuitry may access the memory and specialized processing blocks via an address encoded scheme. Configured in this way, the maximum operating frequency of the programmable device can be optimized such that critical paths will no longer need to traverse any unused memory and specialized processing blocks.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 24, 2020
    Assignee: Intel Corporation
    Inventors: Dheeraj Subbareddy, Md Altaf Hossain, Ankireddy Nalamalpu, Robert Sankman, Ravindranath Mahajan, Gregg William Baeckler
  • Patent number: 10595409
    Abstract: Embodiments of the present disclosure are directed towards electro-magnetic interference (EMI) shielding techniques and configurations. In one embodiment, an apparatus includes a first substrate, a die having interconnect structures coupled with the first substrate to route input/output (I/O) signals between the die and the first substrate and a second substrate coupled with the first substrate, wherein the die is disposed between the first substrate and the second substrate and at least one of the first substrate and the second substrate include traces configured to provide electro-magnetic interference (EMI) shielding for the die. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 17, 2020
    Assignee: INTEL CORPORATION
    Inventors: Adel A. Elsherbini, Ravindranath Mahajan, John S. Guzek, Nitin A. Deshpande
  • Publication number: 20200083890
    Abstract: A programmable device may have logic circuitry formed in a top die and memory and specialized processing blocks formed in a bottom die, where the top die is stacked directly on top of the bottom die in a face-to-face configuration. The logic circuitry may include logic sectors, logic array blocks, logic elements, and other types of logic regions. The memory blocks may include large banks of multiport memory for storing data. The specialized processing blocks may include multipliers, adders, and other arithmetic components. The logic circuitry may access the memory and specialized processing blocks via an address encoded scheme. Configured in this way, the maximum operating frequency of the programmable device can be optimized such that critical paths will no longer need to traverse any unused memory and specialized processing blocks.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 12, 2020
    Applicant: Intel Corporation
    Inventors: Dheeraj Subbareddy, MD Altaf Hossain, Ankireddy Nalamalpu, Robert Sankman, Ravindranath Mahajan, Gregg William Baeckler