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).
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Publication number: 20250110338Abstract: A near-eye display includes a display panel (e.g., a liquid crystal display (LCD) panel or organic light emitting diode (OLED) display panel) configured to generate a display image, and display optics configured to project the display image to a user. The near-eye display also includes an optical attenuation layer formed on the display optics, between the display optics and the display panel and spaced apart from the display panel, or on a side of the display optics opposing the display panel. The optical attenuation layer includes, for example, a polarization film, an infrared (IR) blocking coating, an IR blocking optically clear adhesive layer, a photochromic (or UV blocking) coating, or a combination thereof. In some examples, the optical attenuation layer is formed on an accessory device (e.g., a prescription lens or a lens cover) of the near-eye display.Type: ApplicationFiled: September 11, 2024Publication date: April 3, 2025Inventors: Jie LUO, Xinyu ZHU, Jie XIANG, Sandeep REKHI
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Publication number: 20250052926Abstract: 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: ApplicationFiled: October 1, 2024Publication date: February 13, 2025Inventors: Tingling Rao, Tanya Malhotra, Andrew John Ouderkirk, Lafe Joseph Purvis, II, Sandeep Rekhi, Arman Boromand, Sheng Ye, Oleg Yaroshchuk, Anurag Tyagi
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Patent number: 12218076Abstract: A semiconductor design that uses high refractive index material between low refractive index material. This structure may act as an optical waveguide.Type: GrantFiled: March 7, 2022Date of Patent: February 4, 2025Assignee: Meta Platforms, Inc.Inventors: Pradip Sairam Pichumani, Sandeep Rekhi
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Patent number: 12140730Abstract: 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: GrantFiled: July 7, 2021Date of Patent: November 12, 2024Assignee: Meta Platforms Technologies, Inc.Inventors: Tingling Rao, Tanya Malhotra, Andrew John Ouderkirk, Lafe Joseph Purvis, II, Sandeep Rekhi, Arman Boromand, Sheng Ye, Oleg Yaroshchuk, Anurag Tyagi
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Publication number: 20240076429Abstract: 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: ApplicationFiled: September 1, 2023Publication date: March 7, 2024Inventors: Wenyang Pan, Shawn Reese, Li Yao, Ziyan Liu, Fang He, Robert Cole Bolger-Cruz, Sandeep Rekhi
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Patent number: 11796819Abstract: 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: GrantFiled: June 30, 2022Date of Patent: October 24, 2023Assignee: Meta Platforms, Inc.Inventors: Pradip Sairam Pichumani, Sandeep Rekhi, Thomas John Farrell Wallin
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Publication number: 20230326840Abstract: 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: ApplicationFiled: March 23, 2022Publication date: October 12, 2023Applicant: Meta Platforms, Inc.Inventors: Pradip Sairam PICHUMANI, Sandeep REKHI, Ahmad BYAGOWI
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Publication number: 20230299035Abstract: 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: ApplicationFiled: March 18, 2022Publication date: September 21, 2023Inventors: Sandeep Rekhi, Pradip Sairam Pichumani
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Patent number: 11756814Abstract: 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: GrantFiled: May 27, 2021Date of Patent: September 12, 2023Assignee: META PLATFORMS, INC.Inventors: Sandeep Rekhi, Pradip Sairam Pichumani
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Publication number: 20230280530Abstract: A semiconductor design that uses high refractive index material between low refractive index material. This structure may act as an optical waveguide.Type: ApplicationFiled: March 7, 2022Publication date: September 7, 2023Inventors: Pradip Sairam Pichumani, Sandeep Rekhi
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Patent number: 11639559Abstract: 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: GrantFiled: January 27, 2021Date of Patent: May 2, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Tanya Malhotra, Tingling Rao, Andrew John Ouderkirk, Arman Boromand, Lafe Joseph Purvis, Oleg Yaroshchuk, Sheng Ye, Sandeep Rekhi
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Publication number: 20230123834Abstract: 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: ApplicationFiled: October 6, 2022Publication date: April 20, 2023Inventors: Pradip Sairam Pichumani, Sandeep Rekhi, Thomas John Farrell Wallin
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Patent number: 11604212Abstract: 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: GrantFiled: June 2, 2021Date of Patent: March 14, 2023Assignee: Meta Platforms, Inc.Inventors: Pradip Sairam Pichumani, Sandeep Rekhi, Howard Lee Davidson
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Publication number: 20230042659Abstract: 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: ApplicationFiled: August 3, 2021Publication date: February 9, 2023Inventors: Pradip Sairam Pichumani, Sandeep Rekhi
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Publication number: 20220035075Abstract: 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: ApplicationFiled: July 7, 2021Publication date: February 3, 2022Inventors: Tingling RAO, Tanya MALHOTRA, Andrew John OUDERKIRK, Lafe Joseph PURVIS, II, Sandeep REKHI, Arman BOROMAND, Sheng YE, Oleg YAROSHCHUK, Anurag TYAGI
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Publication number: 20210262116Abstract: 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: ApplicationFiled: January 27, 2021Publication date: August 26, 2021Inventors: Tingling RAO, Tanya MALHOTRA, Andrew John OUDERKIRK, Arman BOROMAND, Lafe Joseph PURVIS, Oleg YAROSHCHUK, Sheng YE, Sandeep REKHI
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Publication number: 20210263313Abstract: 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: ApplicationFiled: January 27, 2021Publication date: August 26, 2021Inventors: Tanya MALHOTRA, Tingling RAO, Andrew John OUDERKIRK, Arman BOROMAND, Lafe Joseph PURVIS, Oleg YAROSHCHUK, Sheng YE, Sandeep REKHI
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Patent number: 10784506Abstract: 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: GrantFiled: August 27, 2018Date of Patent: September 22, 2020Assignee: Apple Inc.Inventors: Shawn W. Snyder, Damon E. Lytle, Jeffrey J. Kelly, Ronald D. Brost, Sandeep Rekhi, Bernd Jurgen Neudecker, Terry Tiegs
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Publication number: 20120089983Abstract: 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: ApplicationFiled: September 20, 2011Publication date: April 12, 2012Applicant: Tata Consultancy Services LimitedInventors: Arunava Chandra, Pradip Pradhan, Balakrishnan Subramani, Kamna Tyagi, Nina Modi, Jyoti Mohile, Alka Chawla, Sandeep Rekhi, Sandhya Kakkar, Vasu Padmanabhan