Patents by Inventor Arnab Sarkar

Arnab Sarkar 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: 20240006332
    Abstract: An integrated circuit (IC) device comprises a host component and an IC die directly bonded to the host component. The IC die comprises a substrate material layer and a die metallization level between the substrate material layer and host component. The IC die includes an upper die alignment fiducial between the die metallization level and host component. The upper die alignment fiducial at least partially overlaps one or more metallization features within the die metallization level. In embodiments, at least two orthogonal edges of the upper die alignment fiducial do not overlap any of the metallization features within the die metallization level. In embodiments, the IC die includes a lower die alignment fiducial between the substrate material layer and the die metallization level. The lower die alignment fiducial may at least partially overlap one or more second metallization features within a second die metallization level of the IC die.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 4, 2024
    Applicant: Intel Corporation
    Inventors: Dimitrios Antartis, Nitin A. Deshpande, Siyan Dong, Omkar Karhade, Gwang-soo Kim, Shawna Liff, Siddhartha Mal, Debendra Mallik, Khant Minn, Haris Khan Niazi, Arnab Sarkar, Yi Shi, Botao Zhang
  • Publication number: 20230260884
    Abstract: Guard ring designs enabling in-line testing of silicon bridges for semiconductor packages, and the resulting silicon bridges and semiconductor packages, are described. In an example, a semiconductor structure includes a substrate having an insulating layer disposed thereon. A metallization structure is disposed on the insulating layer. The metallization structure incudes conductive routing disposed in a dielectric material stack. The semiconductor structure also includes a first metal guard ring disposed in the dielectric material stack and surrounding the conductive routing. The first metal guard ring includes a plurality of individual guard ring segments. The semiconductor structure also includes a second metal guard ring disposed in the dielectric material stack and surrounding the first metal guard ring. Electrical testing features are disposed in the dielectric material stack, between the first metal guard ring and the second metal guard ring.
    Type: Application
    Filed: April 24, 2023
    Publication date: August 17, 2023
    Inventors: Arnab SARKAR, Sujit SHARAN, Dae-Woo KIM
  • Patent number: 11728258
    Abstract: A package substrate, comprising a package comprising a substrate, the substrate comprising a dielectric layer, a via extending to a top surface of the dielectric layer; and a bond pad stack having a central axis and extending laterally from the via over the first layer. The bond pad stack is structurally integral with the via, wherein the bond pad stack comprises a first layer comprising a first metal disposed on the top of the via and extends laterally from the top of the via over the top surface of the dielectric layer adjacent to the via. The first layer is bonded to the top of the via and the dielectric layer, and a second layer is disposed over the first layer. A third layer is disposed over the second layer. The second layer comprises a second metal and the third layer comprises a third metal. The second layer and the third layer are electrically coupled to the via.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: August 15, 2023
    Assignee: Intel Corporation
    Inventors: Aleksandar Aleksov, Veronica Strong, Kristof Darmawikarta, Arnab Sarkar
  • Publication number: 20230197520
    Abstract: Embodiments herein relate to systems, apparatuses, or processes for attaching dummy dies to a wafer that includes a plurality of active dies, where the dummy dies are placed along or in dicing streets where the wafer is to be cut during singulation. In embodiments, the dummy dies may be attached to the wafer using a die attach film, or may be attached using hybrid bonding. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 22, 2023
    Inventors: Yi SHI, Omkar KARHADE, Shawna M. LIFF, Zhihua ZOU, Ryan MACKIEWICZ, Nitin A. DESHPANDE, Debendra MALLIK, Arnab SARKAR
  • Publication number: 20230197637
    Abstract: Stacked die assemblies having a moisture sealant layer according to embodiments are described herein. A microelectronic package structure having a first die with a second and an adjacent third die on the first die. Each of the second and third die comprise hybrid bonding interfaces with the first die. A first layer is on a region of the first die adjacent sidewalls of the second and the third dies, and adjacent an edge portion of the first die. The first layer comprises a diffusion barrier material A second layer is over the first layer, the second layer, wherein a top surface of the second layer is substantially coplanar with the top surfaces of the second and third dies. The first layer provides a hermetic moisture sealant layer for stacked die package structures.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 22, 2023
    Applicant: Intel Corporation
    Inventors: Debendra Mallik, Mohammad Enamul Kabir, Nitin Deshpande, Omkar Karhade, Arnab Sarkar, Sairam Agraharam, Christopher Pelto, Gwang-Soo Kim, Ravindranath Mahajan
  • Patent number: 11676889
    Abstract: Guard ring designs enabling in-line testing of silicon bridges for semiconductor packages, and the resulting silicon bridges and semiconductor packages, are described. In an example, a semiconductor structure includes a substrate having an insulating layer disposed thereon. A metallization structure is disposed on the insulating layer. The metallization structure incudes conductive routing disposed in a dielectric material stack. The semiconductor structure also includes a first metal guard ring disposed in the dielectric material stack and surrounding the conductive routing. The first metal guard ring includes a plurality of individual guard ring segments. The semiconductor structure also includes a second metal guard ring disposed in the dielectric material stack and surrounding the first metal guard ring. Electrical testing features are disposed in the dielectric material stack, between the first metal guard ring and the second metal guard ring.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: June 13, 2023
    Assignee: Intel Corporation
    Inventors: Arnab Sarkar, Sujit Sharan, Dae-Woo Kim
  • Publication number: 20220155539
    Abstract: Embodiments disclosed herein include optical packages. In an embodiment, an optical package comprises a package substrate, and a photonics die coupled to the package substrate. In an embodiment, a compute die is coupled to the package substrate, where the photonics die is communicatively coupled to the compute die by a bridge in the package substrate. In an embodiment, the optical package further comprises an optical waveguide embedded in the package substrate. In an embodiment, a first end of the optical waveguide is below the photonics die, and a second end of the optical waveguide is substantially coplanar with an edge of the package substrate.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 19, 2022
    Inventors: Srinivas V. PIETAMBARAM, Brandon C. MARIN, Sameer PAITAL, Sai VADLAMANI, Rahul N. MANEPALLI, Xiaoqian LI, Suresh V. POTHUKUCHI, Sujit SHARAN, Arnab SARKAR, Omkar KARHADE, Nitin DESHPANDE, Divya PRATAP, Jeremy ECTON, Debendra MALLIK, Ravindranath V. MAHAJAN, Zhichao ZHANG, Kemal AYGÜN, Bai NIE, Kristof DARMAWIKARTA, James E. JAUSSI, Jason M. GAMBA, Bryan K. CASPER, Gang DUAN, Rajesh INTI, Mozhgan MANSURI, Susheel JADHAV, Kenneth BROWN, Ankar AGRAWAL, Priyanka DOBRIYAL
  • Publication number: 20220148981
    Abstract: Apparatuses, systems and methods associated with over void signal trace design are disclosed herein. In embodiments, an integrated circuit (IC) package may include a first layer that has a void and a guard trace, wherein a first portion of the void is located on a first side of the guard trace and a second portion of the void is located on a second side of the guard trace. The IC package may further include a second layer located adjacent to the first layer, wherein the second layer has a signal trace that extends along the guard trace. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 12, 2022
    Inventors: Ananth PRABHAKUMAR, Krishna SRINIVASAN, Arnab SARKAR
  • Publication number: 20220130743
    Abstract: Guard ring designs enabling in-line testing of silicon bridges for semiconductor packages, and the resulting silicon bridges and semiconductor packages, are described. In an example, a semiconductor structure includes a substrate having an insulating layer disposed thereon. A metallization structure is disposed on the insulating layer. The metallization structure incudes conductive routing disposed in a dielectric material stack. The semiconductor structure also includes a first metal guard ring disposed in the dielectric material stack and surrounding the conductive routing. The first metal guard ring includes a plurality of individual guard ring segments. The semiconductor structure also includes a second metal guard ring disposed in the dielectric material stack and surrounding the first metal guard ring. Electrical testing features are disposed in the dielectric material stack, between the first metal guard ring and the second metal guard ring.
    Type: Application
    Filed: January 11, 2022
    Publication date: April 28, 2022
    Inventors: Arnab SARKAR, Sujit SHARAN, Dae-Woo KIM
  • Publication number: 20220084927
    Abstract: A package substrate, comprising a package comprising a substrate, the substrate comprising a dielectric layer, a via extending to a top surface of the dielectric layer; and a bond pad stack having a central axis and extending laterally from the via over the first layer. The bond pad stack is structurally integral with the via, wherein the bond pad stack comprises a first layer comprising a first metal disposed on the top of the via and extends laterally from the top of the via over the top surface of the dielectric layer adjacent to the via. The first layer is bonded to the top of the via and the dielectric layer, and a second layer is disposed over the first layer. A third layer is disposed over the second layer. The second layer comprises a second metal and the third layer comprises a third metal. The second layer and the third layer are electrically coupled to the via.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Applicant: INTEL CORPORATION
    Inventors: Aleksandar Aleksov, Veronica Strong, Kristof Darmawikarta, Arnab Sarkar
  • Patent number: 11264338
    Abstract: Apparatuses, systems and methods associated with over void signal trace design are disclosed herein. In embodiments, an integrated circuit (IC) package may include a first layer that has a void and a guard trace, wherein a first portion of the void is located on a first side of the guard trace and a second portion of the void is located on a second side of the guard trace. The IC package may further include a second layer located adjacent to the first layer, wherein the second layer has a signal trace that extends along the guard trace. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: March 1, 2022
    Assignee: Intel Corporation
    Inventors: Ananth Prabhakumar, Krishna Srinivasan, Arnab Sarkar
  • Patent number: 11257745
    Abstract: A package substrate, comprising a package comprising a substrate, the substrate comprising a dielectric layer, a via extending to a top surface of the dielectric layer; and a bond pad stack having a central axis and extending laterally from the via over the first layer. The bond pad stack is structurally integral with the via, wherein the bond pad stack comprises a first layer comprising a first metal disposed on the top of the via and extends laterally from the top of the via over the top surface of the dielectric layer adjacent to the via. The first layer is bonded to the top of the via and the dielectric layer, and a second layer is disposed over the first layer. A third layer is disposed over the second layer. The second layer comprises a second metal and the third layer comprises a third metal. The second layer and the third layer are electrically coupled to the via.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 22, 2022
    Assignee: Intel Corporation
    Inventors: Aleksandar Aleksov, Veronica Strong, Kristof Darmawikarta, Arnab Sarkar
  • Patent number: 11257743
    Abstract: Guard ring designs enabling in-line testing of silicon bridges for semiconductor packages, and the resulting silicon bridges and semiconductor packages, are described. In an example, a semiconductor structure includes a substrate having an insulating layer disposed thereon. A metallization structure is disposed on the insulating layer. The metallization structure includes conductive routing disposed in a dielectric material stack. The semiconductor structure also includes a first metal guard ring disposed in the dielectric material stack and surrounding the conductive routing. The first metal guard ring includes a plurality of individual guard ring segments. The semiconductor structure also includes a second metal guard ring disposed in the dielectric material stack and surrounding the first metal guard ring. Electrical testing features are disposed in the dielectric material stack, between the first metal guard ring and the second metal guard ring.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: February 22, 2022
    Assignee: Intel Corporation
    Inventors: Arnab Sarkar, Sujit Sharan, Dae-Woo Kim
  • Publication number: 20200258827
    Abstract: A package substrate, comprising a package comprising a substrate, the substrate comprising a dielectric layer, a via extending to a top surface of the dielectric layer; and a bond pad stack having a central axis and extending laterally from the via over the first layer. The bond pad stack is structurally integral with the via, wherein the bond pad stack comprises a first layer comprising a first metal disposed on the top of the via and extends laterally from the top of the via over the top surface of the dielectric layer adjacent to the via. The first layer is bonded to the top of the via and the dielectric layer, and a second layer is disposed over the first layer. A third layer is disposed over the second layer. The second layer comprises a second metal and the third layer comprises a third metal. The second layer and the third layer are electrically coupled to the via.
    Type: Application
    Filed: September 29, 2017
    Publication date: August 13, 2020
    Applicant: INTEL CORPORATION
    Inventors: Aleksandar Aleksov, Veronica Strong, Kristof Darmawikarta, Arnab Sarkar
  • Publication number: 20200066640
    Abstract: Embodiments are generally directed to hybrid technology 3-D die stacking. An embodiment of an apparatus includes a TSV array substrate including through silicon vias (TSVs) and wire bond contacts; a stack of one or more wire bond dies; and a package coupled with the TSV substrate by a first interconnect, wherein the one or more wire bond dies are connected via one or more wires to one or more wire bond contacts of the TSV array substrate, and wherein the TSV array substrate provides connections to the for each of the one or more wire bond dies.
    Type: Application
    Filed: December 26, 2015
    Publication date: February 27, 2020
    Inventors: Arnab SARKAR, Ravindranath V. MAHAJAN
  • Publication number: 20190371719
    Abstract: Guard ring designs enabling in-line testing of silicon bridges for semiconductor packages, and the resulting silicon bridges and semiconductor packages, are described. In an example, a semiconductor structure includes a substrate having an insulating layer disposed thereon. A metallization structure is disposed on the insulating layer. The metallization structure includes conductive routing disposed in a dielectric material stack. The semiconductor structure also includes a first metal guard ring disposed in the dielectric material stack and surrounding the conductive routing. The first metal guard ring includes a plurality of individual guard ring segments. The semiconductor structure also includes a second metal guard ring disposed in the dielectric material stack and surrounding the first metal guard ring. Electrical testing features are disposed in the dielectric material stack, between the first metal guard ring and the second metal guard ring.
    Type: Application
    Filed: August 15, 2019
    Publication date: December 5, 2019
    Inventors: Arnab SARKAR, Sujit SHARAN, Dae-Woo KIM
  • Patent number: 10475736
    Abstract: Aspects of the embodiments are directed to an IC chip that includes a substrate comprising a first metal layer, a second metal layer, and a ground plane residing on the first metal layer. The second metal layer can include a first signal trace, the first signal trace electrically coupled to a first signal pad residing in the first metal layer by a first signal via. The second metal layer can include a second signal trace, the second signal trace electrically coupled to a second signal pad residing in the first metal layer by a second signal via. The substrate can also include a ground trace residing in the second metal layer between the first signal trace and the second signal trace, the ground trace electrically coupled to the ground plane by a ground via. The vias coupled to the traces can include self-aligned or zero-misaligned vias.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: November 12, 2019
    Assignee: Intel Corporation
    Inventors: Aleksandar Aleksov, Arnab Sarkar, Arghya Sain, Kristof Darmawikarta, Henning Braunisch, Prashant D. Parmar, Sujit Sharan, Johanna M. Swan, Feras Eid
  • Publication number: 20190295961
    Abstract: Apparatuses, systems and methods associated with over void signal trace design are disclosed herein. In embodiments, an integrated circuit (IC) package may include a first layer that has a void and a guard trace, wherein a first portion of the void is located on a first side of the guard trace and a second portion of the void is located on a second side of the guard trace. The IC package may further include a second layer located adjacent to the first layer, wherein the second layer has a signal trace that extends along the guard trace. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 26, 2019
    Inventors: Ananth PRABHAKUMAR, Krishna SRINIVASAN, Arnab SARKAR
  • Patent number: 10418312
    Abstract: Guard ring designs enabling in-line testing of silicon bridges for semiconductor packages, and the resulting silicon bridges and semiconductor packages, are described. In an example, a semiconductor structure includes a substrate having an insulating layer disposed thereon. A metallization structure is disposed on the insulating layer. The metallization structure includes conductive routing disposed in a dielectric material stack. The semiconductor structure also includes a first metal guard ring disposed in the dielectric material stack and surrounding the conductive routing. The first metal guard ring includes a plurality of individual guard ring segments. The semiconductor structure also includes a second metal guard ring disposed in the dielectric material stack and surrounding the first metal guard ring. Electrical testing features are disposed in the dielectric material stack, between the first metal guard ring and the second metal guard ring.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: September 17, 2019
    Assignee: Intel Corporation
    Inventors: Arnab Sarkar, Sujit Sharan, Dae-Woo Kim
  • Publication number: 20190096798
    Abstract: Aspects of the embodiments are directed to an IC chip that includes a substrate comprising a first metal layer, a second metal layer, and a ground plane residing on the first metal layer. The second metal layer can include a first signal trace, the first signal trace electrically coupled to a first signal pad residing in the first metal layer by a first signal via. The second metal layer can include a second signal trace, the second signal trace electrically coupled to a second signal pad residing in the first metal layer by a second signal via. The substrate can also include a ground trace residing in the second metal layer between the first signal trace and the second signal trace, the ground trace electrically coupled to the ground plane by a ground via. The vias coupled to the traces can include self-aligned or zero-misaligned vias.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 28, 2019
    Applicant: Intel Corporation
    Inventors: Aleksandar Aleksov, Arnab Sarkar, Arghya Sain, Kristof Darmawikarta, Henning Braunisch, Prashant D. Parmar, Sujit Sharan, Johanna M. Swan, Feras Eid