Patents by Inventor DHEERAJ SUBBAREDDY

DHEERAJ SUBBAREDDY 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: 20230049681
    Abstract: An integrated circuit die includes input buffer circuits that are enabled during an input mode of operation in response to first control signals to transmit input signals into the integrated circuit die from conductive bumps. Each of the input buffer circuits is coupled to one of the conductive bumps. The integrated circuit die also includes output buffer circuits that are each coupled to one of the conductive bumps. The output buffer circuits are enabled during an output mode of operation in response to second control signals to transmit output signals from the integrated circuit die to the conductive bumps. The input buffer circuits are disabled from transmitting signals during the output mode of operation in response to the first control signals. The output buffer circuits are disabled from transmitting signals during the input mode of operation in response to the second control signals.
    Type: Application
    Filed: October 25, 2022
    Publication date: February 16, 2023
    Applicant: Intel Corporation
    Inventors: Jeffrey Chromczak, Chooi Pei Lim, Lai Guan Tang, Chee Hak Teh, MD Altaf Hossain, Dheeraj Subbareddy, Ankireddy Nalamalpu
  • Patent number: 11557541
    Abstract: Embodiments disclosed herein include electronic packages. In an embodiment, the electronic package comprises, a package substrate, an interposer on the package substrate, a first die cube and a second die cube on the interposer, wherein the interposer includes conductive traces for electrically coupling the first die cube to the second die cube, a die on the package substrate, and an embedded multi-die interconnect bridge (EMIB) in the package substrate, wherein the EMIB electrically couples the interposer to the die.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: January 17, 2023
    Assignee: Intel Corporation
    Inventors: Md Altaf Hossain, Ankireddy Nalamalpu, Dheeraj Subbareddy, Robert Sankman, Ravindranath V. Mahajan, Debendra Mallik, Ram S. Viswanath, Sandeep B. Sane, Sriram Srinivasan, Rajat Agarwal, Aravind Dasu, Scott Weber, Ravi Gutala
  • Patent number: 11528029
    Abstract: An IC, operable at a first clock phase, includes first and second IOs and a PLL. The PLL includes a control circuit, an input to receive a first clock signal, an output to output a second clock signal, and a first detector to generate a first phase difference signal from the first and second clock signals. The IC includes a second phase detector that is coupled to the PLL's output to receive the second clock signal and is coupled to the first IO to receive a third clock single from a second IC, which is operable at a second clock phase. The second detector generates a second phase difference signal from the second and third clock signals. If the PLL uses the second phase difference signal to generate the second clock signal, then the second clock signal is synchronized with the third clock signal for synchronous data transfer.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: December 13, 2022
    Assignee: Intel Corporation
    Inventors: Lai Guan Tang, Ankireddy Nalamalpu, Dheeraj Subbareddy
  • Patent number: 11500412
    Abstract: A circuit system includes an interposer that has a first clock network and first and second integrated circuit dies that are mounted on the interposer. The first integrated circuit die includes a phase detector circuit, an adjustable delay circuit that generates a second clock signal in response to a first clock signal received from the first clock network, and a second clock network that generates a third clock signal in response to the second clock signal. The second integrated circuit die comprises a third clock network that generates a fourth clock signal in response to the first clock signal received from the first clock network. The phase detector circuit controls a delay provided by the adjustable delay circuit to the second clock signal based on a phase comparison between phases of the third and fourth clock signals.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: November 15, 2022
    Assignee: Intel Corporation
    Inventors: Jeffrey Chromczak, Chooi Pei Lim, Lai Guan Tang, Chee Hak Teh, MD Altaf Hossain, Dheeraj Subbareddy, Ankireddy Nalamalpu
  • Patent number: 11476185
    Abstract: Embodiments of the invention include a stacked die system and methods for forming such systems. In an embodiment, the stacked die system may include a first die. The first die may include a device layer and a plurality of routing layers formed over the device layer. The plurality of routing layers may be segmented into a plurality of sub regions. In an embodiment no conductive traces in the plurality of routing layers pass over a boundary between any of the plurality of sub regions. In an embodiment, the stacked die system may also include a plurality of second dies stacked over the first die. According to an embodiment, at least a two of the second dies are communicatively coupled to each other by a die to die interconnect formed entirely within a single sub region in the first die.
    Type: Grant
    Filed: April 1, 2017
    Date of Patent: October 18, 2022
    Assignee: Intel Corporation
    Inventors: MD Altaf Hossain, Dinesh Somasekhar, Dheeraj Subbareddy
  • Publication number: 20220198115
    Abstract: Systems or methods of the present disclosure may improve scalability (e.g., component scalability, product variation scalability) of integrated circuit systems by disaggregating periphery intellectual property (IP) circuitry into modular periphery IP tiles that can be installed as modules. Such an integrated circuit system may include a first die that includes programmable fabric circuitry and a second die that that includes a periphery IP tile. The periphery IP tile may be disaggregated from the programmable fabric die and may be communicatively coupled to the first die via a modular interface.
    Type: Application
    Filed: August 2, 2021
    Publication date: June 23, 2022
    Inventors: Chee Hak Teh, Ankireddy Nalamalpu, MD Altaf Hossain, Dheeraj Subbareddy, Sean R. Atsatt, Lai Guan Tang
  • Patent number: 11368158
    Abstract: A method of handling integrated circuit dies with defects is provided. After forming a plurality of dies on one or more silicon wafers, test equipment may be used to identify defects on the dies and to create corresponding defect maps. The defect maps can be combined to form an aggregate defect map. Circuit design tools may create keep-out zones from the aggregate defect map and run learning experiments on each die, while respecting the keep-out zones, to compute design metrics. The circuit design tools may further create larger keep-out zones and run additional learning experiments on each die while respecting the larger keep-out zones to compute additional design metrics. The dies can be binned into different Stock Keeping Units (SKUs) based on one or more of the computed design metrics. Circuit design tools automatically respect the keep-out regions for these dies to program them correctly in the field.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: June 21, 2022
    Assignee: Intel Corporation
    Inventors: Dheeraj Subbareddy, Ankireddy Nalamalpu, Mahesh A. Iyer
  • Patent number: 11342238
    Abstract: A multi-chip packaged device may include a first integrated circuit die with a first integrated circuit, such that the first integrated circuit may include a first plurality of ports disposed on a first side and a second plurality of ports disposed on a second side of the first integrated circuit die. The multi-chip packaged device may also include a second integrated circuit die, such that the second integrated circuit may include a third plurality of ports disposed on a third side of the second integrated circuit die. The first integrated circuit may communicate with the first side of the second integrated circuit when placed adjacent to the first side and communicate with the second side of the first integrated circuit die when placed adjacent to the second side.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 24, 2022
    Assignee: Intel Corporation
    Inventors: MD Altaf Hossain, Ankireddy Nalamalpu, Dheeraj Subbareddy
  • Patent number: 11342918
    Abstract: Techniques described herein may relate to providing a programmable interconnect network (e.g., a programmable network-on-chip (NOC)). A method may include determining a transmission parameter, bonding one or more channels of an interconnect network based at least in part on the transmission parameter, and power-gating any unused channels after the bonding.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: May 24, 2022
    Assignee: Intel Corporation
    Inventors: Sharath Raghava, Ankireddy Nalamalpu, Dheeraj Subbareddy, Harsha Gupta, James Ball, Kavitha Prasad, Sean R. Atsatt
  • Publication number: 20220116042
    Abstract: Embodiments of the present disclosure are related to dynamically adjusting a timing and/or power model for a programmable logic device. In particular, the present disclosure is directed to adjusting a timing and/or power model of the programmable logic device that operates at a voltage level that is not other than a predefined voltage defined by a voltage library. A system of the present disclosure may interpolate between voltage levels defined by the voltage libraries to generate a new voltage library for the programmable logic device. A timing and/or power model may be generated for the programmable logic device based on the new voltage library and the programmable logic device may be analyzed using the timing and/or power model at the interpolated voltage. The timing and/or power model may be used to generate a bitstream that is used to program the integrated circuit.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Inventors: Atul Maheshwari, Mahesh Iyer, Mahesh K. Kumashikar, Ian Kuon, Yuet Li, Ankireddy Nalamalpu, Dheeraj Subbareddy
  • Publication number: 20220114125
    Abstract: A processor having a system on a chip (SOC) architecture comprises one or more central processing units (CPUs) comprising multiple cores. An optical Compute Express Link (CXL) communication path incorporating a logical optical CXL protocol stack path transmits and receives an optical bit stream directly after the link layer, bypassing multiple levels of the CXL protocol stack. A CXL interface controller is connected to the one or more CPUs to enable communication between the CPUs and one or more CXL devices over the optical CXL communication path.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 14, 2022
    Inventors: Anshuman THAKUR, Dheeraj SUBBAREDDY, MD Altaf HOSSAIN, Ankireddy NALAMALPU, Mahesh KUMASHIKAR
  • Publication number: 20220115959
    Abstract: Systems or methods of the present disclosure may provide for operating a programmable fabric including multiple programmable elements organized into a number of power domains that utilize a common voltage within the respective power domains. A current sensor senses a current of the programmable fabric. When the sensed current has crossed a threshold, the programmable fabric changes the number of power domains.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Inventors: MD Altaf Hossain, Ankireddy Nalamalpu, Mahesh K. Kumashikar, Dheeraj Subbareddy, Atul Maheshwari, Mahesh A. Iyer
  • Publication number: 20220113350
    Abstract: Systems or methods of the present disclosure may provide a programmable logic device including multiple logic array blocks each having multiple programmable elements. The multiple logic array blocks are arranged in multiple rows that are segmented into multiple segments. The programmable logic device also includes repair circuitry disposed between the multiple segments. The repair circuitry remaps logic within a first segment of the multiple segments when a first logic array block of the multiple logic array blocks has failed. Moreover, the first segment includes the first logic array block.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Inventors: Dheeraj Subbareddy, Arun Jangity, Ramya Yeluri, Mahesh K. Kumashikar, Atul Maheshwari, Ankireddy Nalamalpu
  • Publication number: 20220116044
    Abstract: Techniques described herein may relate to providing a programmable interconnect network (e.g., a programmable network-on-chip (NOC)). A method may include determining a transmission parameter, bonding one or more channels of an interconnect network based at least in part on the transmission parameter, and power-gating any unused channels after the bonding.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 14, 2022
    Inventors: Sharath Raghava, Ankireddy Nalamalpu, Dheeraj Subbareddy, Harsha Gupta, James Ball, Kavitha Prasad, Sean R. Atsatt
  • Publication number: 20220116041
    Abstract: Systems or methods of the present disclosure may provide efficient electric power consumption of programmable logic devices based on providing different voltage levels to different portions (e.g., voltage islands) of the programmable logic device. For example, the programmable logic device may include circuitry to provide different voltage levels to different voltage islands. The programmable logic device may implement and operate logic configurations with different operating parameters using different operating voltages for efficient electric power consumption.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Inventors: Mahesh K. Kumashikar, Ankireddy Nalamalpu, MD Altaf Hossain, Dheeraj Subbareddy, Atul Maheshwari, Yuet Li, Mahesh A. Iyer
  • Publication number: 20220102281
    Abstract: A digitally communicative circuit may use standardized interfaces for connection and communication with other circuit components. Such digitally communicative circuit may benefit from using wider variety of interconnect schemes with the respective interfaces for transmission and reception of data. Some chiplets may communicate using a high data bandwidth interface while other chiplets may communicate using interfaces with lower data bandwidth. Alternate interface is introduced that may facilitate scaled communication with Advanced Interface Bus 2.0 without translation circuitry and with different data bandwidth.
    Type: Application
    Filed: September 25, 2020
    Publication date: March 31, 2022
    Inventors: Dheeraj Subbareddy, Ankireddy Nalamalpu, Lai Guan Tang, Mahesh K. Kumashikar
  • Publication number: 20220100692
    Abstract: Embodiments herein relate to systems, apparatuses, or processes for improving off-package edge bandwidth by overlapping electrical and optical serialization/deserialization (SERDES) interfaces on an edge of the package. In other implementations, off-package bandwidth for a particular edge of a package may use both an optical fanout and an electrical fanout on the same edge of the package. In embodiments, the optical fanout may use a top surface or side edge of a die and the electrical fanout may use the bottom side edge of the die. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: September 25, 2020
    Publication date: March 31, 2022
    Inventors: Dheeraj SUBBAREDDY, Ankireddy NALAMALPU, Anshuman THAKUR, MD Altaf HOSSAIN, Mahesh KUMASHIKAR, Kemal AYGÜN, Casey THIELEN, Daniel KLOWDEN, Sandeep B. SANE
  • Publication number: 20220092009
    Abstract: Systems and method include one or more die coupled to an interposer. The interposer includes interconnection circuitry configured to electrically connect the one or more die together via the interposer. The interposer also includes translation circuitry configured to translate communications as they pass through the interposer. For instance, in the interposer, the translation circuitry translates communications, in the interposer, from a first protocol of a first die of the one or more die to a second protocol of a second die of the one or more die.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Inventors: Lai Guan Tang, Ankireddy Nalamalpu, Dheeraj Subbareddy, Chee Hak Teh, MD Altaf Hossain
  • Publication number: 20220092016
    Abstract: Embodiments herein relate to systems, apparatuses, or techniques for using an optical physical layer die within a system-on-a-chip to optically couple with an optical physical layer die on another package to provide high-bandwidth memory access between the system-on-a-chip and the other package. In embodiments, the other package may be a large optically connected memory device that includes a memory controller coupled with an optical physical layer die, where the memory controller is coupled with memory. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: September 24, 2020
    Publication date: March 24, 2022
    Inventors: Mahesh K. KUMASHIKAR, Dheeraj SUBBAREDDY, Anshuman THAKUR, MD Altaf HOSSAIN, Ankireddy NALAMALPU, Casey G. THIELEN, Daniel S. KLOWDEN, Kevin P. MA, Sergey Yuryevich SHUMARAYEV, Sandeep SANE, Conor O'KEEFFE
  • Publication number: 20220094434
    Abstract: Embodiments described herein may be related to apparatuses, processes, and techniques related to characterizing data being transferred from one device to another via an optical link based upon the wavelengths within the optical link on which the data is being carried. In embodiments, the characteristics of this data may include quality of service for the data to be implemented by a field programmable gate array within a heterogeneous storage pool coupled with storage devices, where the quality of service includes minimum threshold values for bandwidth and latency. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: September 24, 2020
    Publication date: March 24, 2022
    Inventors: Dheeraj SUBBAREDDY, Anshuman THAKUR, Ankireddy NALAMALPU, MD Altaf HOSSAIN