Patents Examined by Savitri Mulpuri
  • Patent number: 11812671
    Abstract: Systems and techniques facilitating antenna-based thermal annealing of qubits are provided. In one example, a radio frequency emitter, transmitter, and/or antenna can be positioned above a superconducting qubit chip having a Josephson junction coupled to a set of one or more capacitor pads. The radio frequency emitter, transmitter, and/or antenna can emit an electromagnetic signal onto the set of one or more capacitor pads. The capacitor pads can function as receiving antennas and therefore receive the electromagnetic signal. Upon receipt of the electromagnetic signal, an alternating current and/or voltage can be induced in the capacitor pads, which current and/or voltage thereby heat the pads and the Josephson junction. The heating of the Josephson junction can change its physical properties, thereby annealing the Josephson junction. In another example, the emitter can direct the electromagnetic signal to avoid unwanted annealing of neighboring qubits on the superconducting qubit chip.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: November 7, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sami Rosenblatt, Rasit Onur Topaloglu
  • Patent number: 11804573
    Abstract: A group III-V light-emitting diode is provided. The light-emitting diode includes a light generating portion including an active layer interposed between a first conductivity type semiconductor layer and a second conductivity type semiconductor layer. The active layer generates light. The light-emitting diode further includes an optical trap disposed on an optical path of light generated from the active layer. The optical trap includes a light absorption layer interposed between light guide layers. The light-emitting diode further includes a side reflector disposed on a side surface of the optical trap.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: October 31, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Toshiya Yokogawa, Chae Hon Kim, Chung Hoon Lee
  • Patent number: 11804409
    Abstract: The present disclosure provides a semiconductor device with a profiled work-function metal gate electrode. The semiconductor structure includes a metal gate structure formed in an opening of an insulating layer. The metal gate structure includes a gate dielectric layer, a barrier layer, a work-function metal layer between the gate dielectric layer and the barrier layer and a work-function adjustment layer over the barrier layer, wherein the work-function metal has an ordered grain orientation. The present disclosure also provides a method of making a semiconductor device with a profiled work-function metal gate electrode.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: October 31, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Da-Yuan Lee, Hung-Chin Chung, Hsien-Ming Lee, Kuan-Ting Liu, Syun-Ming Jang, Weng Chang, Wei-Jen Lo
  • Patent number: 11804574
    Abstract: Light Emitting Diodes (LEDs) made with GaN and related materials are used to realize high efficiency devices which emit visible radiation. These GaN-based LEDs consists of a multi-layer structure which include p-type electron confinement layers, and p-type current spreading and ohmic contacts layers located above the active region. The alignment of the etched features which penetrate near or through the active region and the ohmic contact is critical and is currently a technological challenge in the fabrication process. Any errors in this alignment and successive layers will short across the active layers of the device and result in reduced yield of functional devices. The invention described herein provides a method and apparatus to realize the successful alignment and streamlined fabrication of high-density LED array devices. The result is a higher pixel density GaN-based LED device with higher current handling capability resulting in a brighter device of the same area.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: October 31, 2023
    Assignee: Odyssey Semiconductor, Inc.
    Inventors: Richard J. Brown, Christopher M. Martin, Shikhar Bajracharya
  • Patent number: 11799051
    Abstract: A nitride semiconductor light-emitting element includes a light-emitting layer comprising a well layer comprising AlGaN and emitting ultraviolet light; an electron blocking layer being located on the light-emitting layer and comprising AlGaN with a first Al composition ratio higher than an Al composition ratio of the well layer; and a p-type cladding layer being located on the electron blocking layer, comprising AlGaN with a second Al composition ratio higher than the Al composition ratio of the well layer and lower than the first Al composition ratio, and being doped with a predetermined concentration of a p-type dopant. An interface between the electron blocking layer and the p-type cladding layer is doped with not less than a predetermined amount of an n-type dopant.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: October 24, 2023
    Assignee: Nikkiso Co., Ltd.
    Inventors: Yusuke Matsukura, Tetsuhiko Inazu, Cyril Pernot
  • Patent number: 11799058
    Abstract: In one embodiment, the optoelectronic semiconductor chip comprises a semiconductor layer sequence with an active zone for generating radiation with a wavelength of maximum intensity L. A mirror comprises a cover layer. The cover layer is made of a material transparent to the radiation and has an optical thickness between 0.5 L and 3 L inclusive. The cover layer is followed in a direction away from the semiconductor layer sequence by between inclusive two and inclusive ten intermediate layers of the mirror. The intermediate layers alternately have high and low refractive indices. An optical thickness of at least one of the intermediate layers is not equal to L/4. The intermediate layers are followed in the direction away from the semiconductor layer sequence by at least one metal layer of the mirror as a reflection layer.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: October 24, 2023
    Assignee: OSRAM OLED GMBH
    Inventors: Anna Strozecka-Assig, Johannes Saric
  • Patent number: 11791189
    Abstract: Various embodiments include a reflectometer and a reflectometry system for monitoring movements of a substrate, such as a silicon wafer. In one embodiment, a reflectometry system monitors and controls conditions associated with a substrate disposed within a process chamber. The process chamber includes a substrate-holding device having an actuator mechanism to control movement of the substrate with respect to the substrate-holding device. The reflectometry system includes a light source configured to emit a beam of light directed at the substrate, collection optics configured to receive light reflected from the substrate by the beam of light directed at the substrate and output a signal related to one or more conditions associated with the substrate, and a processor configured to process the signal and direct the actuator mechanism to control the movement of the substrate with respect to the substrate-holding device based on the signal. Other devices and methods are disclosed.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 17, 2023
    Assignee: Lam Research Corporation
    Inventors: Eric A. Pape, Dmitry Opaits, Jorge Luque, Jeffrey D. Bonde, Siyuan Tian
  • Patent number: 11784286
    Abstract: Described are light emitting diode (LED) devices comprising a plurality of mesas defining pixels, each of the mesas comprising semiconductor layers, an N-contact material in a space between each of the plurality of mesas, a dielectric material which insulates sidewalls of the P-type layer and the active region from the metal. A hard mask layer is above the semiconductor layers, the hard mask layer having a plurality of openings therein, each partially filled with a liner layer and partially filled with a P-metal material plug, the P-metal material plug having a width; and a passivation film is on the hard mask layer, the passivation film having a plurality of passivation film openings therein defining a width, the width of each passivation film opening being less than the width of a combination of the P-metal material plug and the liner layer.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: October 10, 2023
    Assignee: Lumileds LLC
    Inventors: Erik William Young, Yu-Chen Shen, Chee Yin Foo, Yeow Meng Teo
  • Patent number: 11777060
    Abstract: A semiconductor light-emitting element includes: an n-type semiconductor layer made of an n-type AlGaN-based semiconductor material; an active layer made of an AlGaN-based semiconductor material provided on the n-type semiconductor layer; a p-type semiconductor layer provided on the active layer; a p-side contact electrode made of Rh and in contact with the p-type semiconductor layer; a p-side electrode covering layer made of TiN that covers the p-side contact electrode; a dielectric protective layer that covers the n-type semiconductor layer, the active layer, the p-type semiconductor layer, and the p-side electrode covering layer; and a p-side pad electrode in contact with the p-side electrode covering layer in a p-side opening that extends through the dielectric protective layer on the p-side contact electrode.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: October 3, 2023
    Assignee: NIKKISO CO., LTD.
    Inventors: Noritaka Niwa, Tetsuhiko Inazu
  • Patent number: 11769860
    Abstract: The semiconductor light-emitting element has an n-type semiconductor layer; an active layer provided on a first upper surface of the n-type semiconductor layer; a p-type semiconductor layer provided on the active layer; a p-side contact electrode provided in contact with the upper surface of the p-type semiconductor layer; a p-side current diffusion layer provided on the p-side contact electrode in a region narrower than a formation region of the p-side contact electrode; a p-side pad electrode provided on the p-side current diffusion layer; an n-side contact electrode provided in contact with a second upper surface of the n-type semiconductor layer; an n-side current diffusion layer provided on the n-side contact electrode over a region wider than a formation region of the n-side contact electrode, and including a TiN layer; and an n-side pad electrode provided on the n-side current diffusion layer.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: September 26, 2023
    Assignee: NIKKISO CO., LTD.
    Inventors: Noritaka Niwa, Tetsuhiko Inazu
  • Patent number: 11769856
    Abstract: The manufacture of an optoelectronic device includes the formation of wire-like shaped light-emitting diodes and the formation of spacing walls transparent to the light radiation originating from the diodes. The lateral sidewalls of each diode are surrounded by at least one of the spacing walls. Light confinement walls directly cover the lateral sidewalls of the spacing walls by being in contact with the latter. The radiation originating from each diode and directed in the direction of the adjacent diodes is blocked by the confinement wall. The upper borders of the diodes are covered by the light confinement material so as to ensure a light extraction by the rear face of the optoelectronic device. An optoelectronic device is also described as such.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: September 26, 2023
    Assignee: ALEDIA
    Inventors: Olivier Jeannin, Erwan Dornel, Eric Pourquier, Tiphaine Dupont
  • Patent number: 11764327
    Abstract: A light-emitting diode includes an n-type aluminum nitride layer formed on a substrate, a multiple quantum well formed on the n-type aluminum nitride layer, and a p-type aluminum nitride hole-injection layer formed adjacent to the multiple quantum well. The multiple quantum well includes a first aluminum nitride quantum well layer having a fixed composition and surrounded by first and second aluminum nitride quantum barrier layers, and a second aluminum nitride quantum well layer having a fixed composition and surrounded by the second aluminum nitride quantum barrier layer and a third aluminum nitride quantum barrier layer. At least one of the first, second, and third aluminum nitride quantum barrier layers has a graded aluminum composition. The first aluminum nitride quantum barrier layer is adjacent to the n-type aluminum nitride layer and the third aluminum nitride quantum barrier layer is adjacent to the p-type aluminum nitride hole-injection layer.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: September 19, 2023
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: Xiaohang Li
  • Patent number: 11764330
    Abstract: In an embodiment, an optoelectronic semiconductor component includes a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, wherein a respective semiconductor material of the first and second semiconductor layers are each a compound semiconductor material including a first, a second and a third composition element, and a second contact region configured to electrically contact the second semiconductor layer, wherein the first semiconductor layer is patterned and arranged over the second semiconductor layer, wherein the second contact region is arranged between patterned regions of the first semiconductor layer, wherein the second contact region comprises a second metallic contact layer and a semiconductor contact layer between the second metallic contact layer and the second semiconductor layer, wherein a semiconductor material of the semiconductor contact layer includes the first, second and third composition elements, and wherein a concentration
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: September 19, 2023
    Assignee: OSRAM OLED GmbH
    Inventors: Mohammad Tollabi Mazraehno, Mariel Grace Jama, Hans-J├╝rgen Lugauer, Alexander Pfeuffer
  • Patent number: 11764334
    Abstract: A light emitting device includes a package having an upper surface and an upward-opening recess defined in a portion of the upper surface, at least one light-emitting element in the recess, a light-transmissive member covering the opening of the recess, and an antireflection film on a lower surface of the light-transmissive member, the antireflection film located between the lower surface of the light-transmissive member and an upper surface of the package at a location where a portion of the lower surface of the light-transmissive member is bonded to the upper surface of the package via the antireflection film. A coating film is disposed on at least a portion of an outer surfaces of the light emitting device, the portion including a region where the antireflection film located between the lower surface of the light-transmissive member and the upper surface of the package is exposed.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: September 19, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Naoki Ishida, Takuya Yamanoi, Hirofumi Yoshida
  • Patent number: 11739420
    Abstract: A deposition mask includes a metal mask body in which a deposition opening is defined; and a coating layer including aluminum oxynitride, on an outer surface of the metal mask body.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyosung Kim, JinYoung Choi, Sungmin Hur, Hyunsang Seo, Hyun-Ju Lee, Manjae Park, Nari Ahn, Hyeongsuk Yoo, Dongwon Han
  • Patent number: 11721789
    Abstract: A light-emitting diode (LED) device includes a substrate, an epitaxial layered structure disposed on the substrate, a current-spreading layer disposed on the epitaxial layered structure, a current-blocking unit disposed on the current-spreading layer, and a distributed Bragg reflector. The epitaxial layered structure, the current-spreading layer and the current-blocking unit are covered by the distributed Bragg reflector. One of the current-spreading layer, the current-blocking unit, and a combination thereof has a patterned rough structure. A method for manufacturing the LED device is also disclosed.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: August 8, 2023
    Inventors: Jiangbin Zeng, Anhe He, Ling-yuan Hong, Kang-Wei Peng, Su-hui Lin, Chia-Hung Chang
  • Patent number: 11715818
    Abstract: A wavelength-converting element includes a substrate, a wavelength-converting layer and a diffuse reflection layer. The wavelength-converting layer is disposed above the substrate. The diffuse reflection layer is disposed between the substrate and the wavelength-converting layer. The diffuse reflection layer includes an inorganic binder and a plurality of diffuse reflection particles. The diffuse reflection particles are mixed with the inorganic binder. The inorganic binder includes an alcohol-soluble inorganic binder or a water-soluble inorganic binder. A projection apparatus using the wavelength-converting element and a manufacturing method of the wavelength-converting element are also provided.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: August 1, 2023
    Assignee: Coretronic Corporation
    Inventor: I-Hua Chen
  • Patent number: 11705538
    Abstract: A semiconductor light emitting element includes: an n-type semiconductor layer made of an n-type aluminum gallium nitride (AlGaN)-based semiconductor material provided on a substrate; an active layer made of an AlGaN-based semiconductor material provided on the n-type semiconductor layer; a p-type semiconductor layer provided on the active layer; and a covering layer made of a dielectric material that covers the n-type semiconductor layer, the active layer, and the p-type semiconductor layer. Each of the active layer and the p-type semiconductor layer has a sloped surface that is sloped at a first angle with respect to the substrate and is covered by the covering layer. The n-type semiconductor layer has a sloped surface that is sloped at a second angle larger than the first angle with respect to the substrate and is covered by the covering layer.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: July 18, 2023
    Assignee: NIKKISO CO., LTD.
    Inventors: Noritaka Niwa, Tetsuhiko Inazu
  • Patent number: 11706941
    Abstract: Disclosed is an organic light emitting display device which may improve reliability. The organic light emitting display device includes light emitting elements arranged in an active area, crack prevention layers arranged in a non-active area along the perimeter of the active area, and at least one crack detection line arranged between the active area and the crack prevention layers, and judges whether or not a crack is generated through an output resistance value from the at least one crack detection line and may thus raise yield.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: July 18, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Chi-Woong Kim, Min-Ho Kim
  • Patent number: 11688829
    Abstract: A light emitting diode (LED) device includes a substrate and a plurality of mesa structures. Each mesa structure includes a layer of a first semiconductor material, a porous layer of the first semiconductor material on the layer of the first semiconductor material, and a layer of a second semiconductor material on the porous layer. The porous layer is characterized by an areal porosity ?15%. The second semiconductor material is characterized by a lattice constant greater than a lattice constant of the first semiconductor material. Each mesa structure also includes an active region on the layer of the second semiconductor material and configured to emit red light, a p-contact layer on the active region, a dielectric layer on sidewalls of the p-contact layer and the active region, and an n-contact layer in physical contact with at least a portion of sidewalls of the layer of the second semiconductor material.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: June 27, 2023
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Wei Sin Tan, Andrea Pinos, John Lyle Whiteman