Patents by Inventor Sandeep Rekhi

Sandeep Rekhi 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: 20240076429
    Abstract: Described herein are conductive fluorinated elastomeric materials and methods of making and using the same. The conductive fluorinated elastomeric materials include a fluorinated polymeric matrix and one or more high aspect-ratio fillers, wherein a surface resistance of the elastomeric material is 15 ohm/square or less and/or a bulk conductivity of the elastomeric material is 0.7 Ohm-cm or less. Also described herein are liquid fluorinated elastomeric compositions, including a fluorinated polymer, one or more high aspect-ratio fillers, and a solvent. Further described herein are molded products including the conductive fluorinated elastomeric materials as described herein and wearable devices including the molded products.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 7, 2024
    Inventors: Wenyang Pan, Shawn Reese, Li Yao, Ziyan Liu, Fang He, Robert Cole Bolger-Cruz, Sandeep Rekhi
  • Patent number: 11796819
    Abstract: Systems, methods, and apparatuses may provide optical lenses comprising liquid crystal metasurfaces. Systems and methods may include a lens system comprising a first optical lens and a liquid crystal metasurface formed on the first optical lens, and a pair of electrodes positioned on opposite sides of the first optical lens. The pair of electrodes may individually tune sections of the liquid crystal metasurface to adjust an optical characteristic of the optical signal. A waveguide may be configured to receive the adjusted optical signal passed through the first optical lens and may provide the optical signal to an image sensor for an image.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: October 24, 2023
    Assignee: Meta Platforms, Inc.
    Inventors: Pradip Sairam Pichumani, Sandeep Rekhi, Thomas John Farrell Wallin
  • Publication number: 20230326840
    Abstract: According to examples, an interconnect system for integrated circuits (ICs) may be fabricated by processing a substrate implanted with copper wells with a photoresist layer such that remaining portions of the photoresist layer expose portions of the copper wells; depositing a barrier layer over a top surface of the wafer, depositing a seed copper layer over the barrier layer; depositing a copper layer over the seed copper layer; planarizing the copper layer and portions of the barrier layer; depositing another copper layer over exposed portions of the substrate, the copper wells, and the interconnect cores; removing portions of the other copper layer between interconnects by processing the second copper layer with another photoresist layer; and removing remaining portions of the other photoresist layer on the interconnects.
    Type: Application
    Filed: March 23, 2022
    Publication date: October 12, 2023
    Applicant: Meta Platforms, Inc.
    Inventors: Pradip Sairam PICHUMANI, Sandeep REKHI, Ahmad BYAGOWI
  • Publication number: 20230299035
    Abstract: Embodiments relate to an integrated circuit package having an integrated circuit die connected to a package substrate through conductors of a flex cable. The flex cable includes an insulating housing made of an insulating material and a plurality of conductors disposed inside the insulating housing. Each conductor of the plurality of conductors is connected to a first contact of a plurality of contacts of the integrated circuit die and a second contact of a plurality of contacts of the package substrate.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 21, 2023
    Inventors: Sandeep Rekhi, Pradip Sairam Pichumani
  • Patent number: 11756814
    Abstract: A system for polishing a sample is provided. The system may comprise a motor. The system may also include a polishing element that is actuated by the motor. The system may also have a sample holder. The sample holder may hold a sample to be polished by the polishing element. In some examples, the sample holder has multiple degrees of movement in order to precisely polish, grind, or bevel the sample. In some examples, the system may further include an arm having a slurry dispenser, inlets for fluid, and a squeegee-like element to clean, wash, or brush off debris from the polishing element during a polishing process.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: September 12, 2023
    Assignee: META PLATFORMS, INC.
    Inventors: Sandeep Rekhi, Pradip Sairam Pichumani
  • Publication number: 20230280530
    Abstract: A semiconductor design that uses high refractive index material between low refractive index material. This structure may act as an optical waveguide.
    Type: Application
    Filed: March 7, 2022
    Publication date: September 7, 2023
    Inventors: Pradip Sairam Pichumani, Sandeep Rekhi
  • Patent number: 11639559
    Abstract: An optical element is provided. The optical element includes a solid crystal including crystal molecules aligned in a predetermined alignment pattern at least partially defined by an alignment structure.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: May 2, 2023
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Tanya Malhotra, Tingling Rao, Andrew John Ouderkirk, Arman Boromand, Lafe Joseph Purvis, Oleg Yaroshchuk, Sheng Ye, Sandeep Rekhi
  • Publication number: 20230123834
    Abstract: Embodiments of the present disclosure relate to a photomask. The photomask may include: a substrate; and one or more pixel units formed over the substrate. Each pixel unit may include: at least one polymer crystal element configured to interact with extreme ultraviolet (EUV) light based on an orientation of the polymer crystal element; and a plurality of electrodes configured to control the orientation of the polymer crystal element by applying voltage across the polymer crystal element. Each pixel unit is controlled by the respective plurality of electrodes independently, and the one or more pixel units generate a pattern for lithography upon exposure to the EUV light.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 20, 2023
    Inventors: Pradip Sairam Pichumani, Sandeep Rekhi, Thomas John Farrell Wallin
  • Patent number: 11604212
    Abstract: The disclosed apparatus may include support portions, a frame (such as a base) configured to maintain the support portions in a spaced-apart configuration, a sample holder configured to receive a sample, and a probe assembly including micromanipulators configured to position one or more probes in contact with the sample. The sample holder may rotate between the support portions, and the probe assembly may rotate with the sample holder so that the one or more probes may maintain contact with a sample in the sample holder as the sample holder is rotated, for example, to expose a portion of the sample for processing. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: March 14, 2023
    Assignee: Meta Platforms, Inc.
    Inventors: Pradip Sairam Pichumani, Sandeep Rekhi, Howard Lee Davidson
  • Publication number: 20230042659
    Abstract: The disclosed system may include a slicing component that has a cutting blade. The cutting blade may be configured to cut a semiconductor wafer into multiple wafer strips, where the wafer strips have flat top surfaces and multiple edges. The system may also include a chuck that has rotatable wafer plate strips that are respectively configured to support the wafer strips. The system may further include a pivot arm that rotates the chuck from a cutting position facing the slicing component to a rotated, polishing position that faces a polishing component. As such, an exposed edge of each wafer strip faces the polishing component. The system may also include a polishing component that is configured to polish at least a portion of the exposed edge of each wafer strip that is facing the polishing component. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: Pradip Sairam Pichumani, Sandeep Rekhi
  • Publication number: 20220035075
    Abstract: An optical film includes an organic solid crystal film formed of a contiguous organic solid crystal having a first dimension no less than 100 micrometer and a second dimension distinct from the first dimension no less than one centimeter. Methods for making the organic solid crystal film are also described.
    Type: Application
    Filed: July 7, 2021
    Publication date: February 3, 2022
    Inventors: Tingling RAO, Tanya MALHOTRA, Andrew John OUDERKIRK, Lafe Joseph PURVIS, II, Sandeep REKHI, Arman BOROMAND, Sheng YE, Oleg YAROSHCHUK, Anurag TYAGI
  • Publication number: 20210263313
    Abstract: An optical element is provided. The optical element includes a solid crystal including crystal molecules aligned in a predetermined alignment pattern at least partially defined by an alignment structure.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 26, 2021
    Inventors: Tanya MALHOTRA, Tingling RAO, Andrew John OUDERKIRK, Arman BOROMAND, Lafe Joseph PURVIS, Oleg YAROSHCHUK, Sheng YE, Sandeep REKHI
  • Publication number: 20210262116
    Abstract: A method is provided. The method includes providing an alignment structure at least partially defining a predetermined alignment pattern. The method also includes forming a solid crystal on the alignment structure. Crystal molecules of the solid crystal are aligned in the predetermined alignment pattern.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 26, 2021
    Inventors: Tingling RAO, Tanya MALHOTRA, Andrew John OUDERKIRK, Arman BOROMAND, Lafe Joseph PURVIS, Oleg YAROSHCHUK, Sheng YE, Sandeep REKHI
  • Patent number: 10784506
    Abstract: A cathode for a solid-state battery comprises a composite cathode active material formed of a layered lithium cobalt oxide (LCO) in a solid solution matrix of lithium oxide (Li2O) and a cobalt oxide phase. For example, the composite cathode active material can be layered LCO in a solid solution matrix of one of Li2O—LixCo1-xO—Co3O4, Li2O—LixCo1-xO and Li2O—Co3O4, with 0?x?0.5. The LCO is at least 80 wt. % of the composite cathode active material. The cathode is a sintered solid-state cathode wafer that is free-standing, upon which solid-state battery cells are fabricated.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 22, 2020
    Assignee: Apple Inc.
    Inventors: Shawn W. Snyder, Damon E. Lytle, Jeffrey J. Kelly, Ronald D. Brost, Sandeep Rekhi, Bernd Jurgen Neudecker, Terry Tiegs
  • Publication number: 20120089983
    Abstract: System and methods for assessing process deployment are described. In one implementation, the method includes collecting at least one metric value associated with at least one operating unit within an organization. Further, the method describes normalizing the at least one collected metric value to a common scale to obtain normalized metric values. The method further describes analyzing the metric value to calculate a process deployment index which indicates the extent of deployment of the one or more processes within the organization.
    Type: Application
    Filed: September 20, 2011
    Publication date: April 12, 2012
    Applicant: Tata Consultancy Services Limited
    Inventors: Arunava Chandra, Pradip Pradhan, Balakrishnan Subramani, Kamna Tyagi, Nina Modi, Jyoti Mohile, Alka Chawla, Sandeep Rekhi, Sandhya Kakkar, Vasu Padmanabhan