Patents Examined by Ratisha Mehta
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Patent number: 11573494Abstract: A photoresist film is patterned into an array of island shapes with improved critical dimension uniformity and no phase edges by using two alternating phase shifting masks (AltPSMs) and one post expose bake (PEB). The photoresist layer is exposed with a first AltPSM having a line/space (L/S) pattern where light through alternating clear regions on each side of an opaque line is 180° phase shifted. Thereafter, there is a second exposure with a second AltPSM having a L/S pattern where opaque lines are aligned orthogonal to the lengthwise dimension of opaque lines in the first exposure, and with alternating 0° and 180° clear regions. Then, a PEB and subsequent development process are used to form an array of island shapes. The double exposure method enables smaller island shapes than conventional photolithography and uses relatively simple AltPSM designs that are easier to implement in production than other optical enhancement techniques.Type: GrantFiled: November 9, 2020Date of Patent: February 7, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Jesmin Haq, Tom Zhong, Zhongjian Teng
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Patent number: 11575069Abstract: The invention is directed towards enhanced systems and methods for employing a pulsed photon (or EM energy) source, such as but not limited to a laser, to electrically couple, bond, and/or affix the electrical contacts of a semiconductor device to the electrical contacts of another semiconductor devices. Full or partial rows of LEDs are electrically coupled, bonded, and/or affixed to a backplane of a display device. The LEDs may be ?LEDs. The pulsed photon source is employed to irradiate the LEDs with scanning photon pulses. The EM radiation is absorbed by either the surfaces, bulk, substrate, the electrical contacts of the LED, and/or electrical contacts of the backplane to generate thermal energy that induces the bonding between the electrical contacts of the LEDs' electrical contacts and backplane's electrical contacts. The temporal and spatial profiles of the photon pulses, as well as a pulsing frequency and a scanning frequency of the photon source, are selected to control for adverse thermal effects.Type: GrantFiled: January 21, 2020Date of Patent: February 7, 2023Assignee: Meta Platforms Technologies, LLCInventors: Daniel Brodoceanu, Oscar Torrents Abad, Jeb Wu, Zheng Sung Chio, Sharon Nanette Farrens, Ali Sengul
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Patent number: 11563158Abstract: Solid-state transducers (“SSTs”) and vertical high voltage SSTs having buried contacts are disclosed herein. An SST die in accordance with a particular embodiment can include a transducer structure having a first semiconductor material at a first side of the transducer structure, and a second semiconductor material at a second side of the transducer structure. The SST can further include a plurality of first contacts at the first side and electrically coupled to the first semiconductor material, and a plurality of second contacts extending from the first side to the second semiconductor material and electrically coupled to the second semiconductor material. An interconnect can be formed between at least one first contact and one second contact. The interconnects can be covered with a plurality of package materials.Type: GrantFiled: December 23, 2020Date of Patent: January 24, 2023Assignee: Micron Technology, Inc.Inventors: Vladimir Odnoblyudov, Martin F. Schubert
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Patent number: 11552161Abstract: The present disclosure provides display panels and methods for manufacturing the same. The display panel includes a pixel definition layer, a cathode, and a compensation electrode. The pixel definition layer defines a plurality of pixel definition openings and a spacing region located between two adjacent pixel definition openings of the plurality of pixel definition openings. The cathode covers the pixel definition layer. The compensation electrode is located in the spacing region. The pixel definition layer covers the compensation electrode and defines a contact hole, the cathode and the compensation electrode are connected via the contact hole.Type: GrantFiled: January 20, 2020Date of Patent: January 10, 2023Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.Inventors: Xinnan Wang, Rusheng Liu
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Patent number: 11552087Abstract: Various embodiments of the present application are directed towards an integrated memory chip comprising a memory array with a strap-cell architecture that reduces the number of distinct strap-cell types and that reduces strap-line density. In some embodiments, the memory array is limited to three distinct types of strap cells: a source line/erase gate (SLEG) strap cell; a control gate/word line (CGWL) strap cell; and a word-line strap cell. The small number of distinct strap-cell types simplifies design of the memory array and further simplifies design of a corresponding interconnect structure. Further, in some embodiments, the three distinct strap-cell types electrically couple word lines, erase gates, and control gates to corresponding strap lines in different metallization layers of an interconnect structure. By spreading the strap lines amongst different metallization layers, strap-line density is reduced.Type: GrantFiled: March 3, 2021Date of Patent: January 10, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wen-Tuo Huang, Ping-Cheng Li, Hung-Ling Shih, Po-Wei Liu, Yu-Ling Hsu, Yong-Shiuan Tsair, Chia-Sheng Lin, Shih Kuang Yang
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Patent number: 11545607Abstract: Provided is an upper substrate for a miniature LED component, a miniature LED component, and a miniature LED display device, wherein the upper substrate for the miniature LED component comprises: a bottom substrate; a metal layer formed on the bottom substrate and having a pattern capable of covering a non-opening region of the lower substrate for the miniature LED component; a graphene layer formed on the bottom substrate; a transparent adhesive layer formed on the bottom substrate to cover the metal layer and the graphene layer.Type: GrantFiled: December 4, 2017Date of Patent: January 3, 2023Assignees: TUNGHSU GROUP CO., LTD., TUNGHSU OPTOELECTRONIC TECHNOLOGY CO., LTD.Inventor: Yihau Shiau
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Patent number: 11538958Abstract: A display apparatus and a manufacturing method thereof. The display apparatus includes a chassis, a plurality of modular displays disposed and tiled on the chassis, each of the plurality of modular displays including a plurality of light emitting diodes (LEDs) constituting each of a plurality of pixels, and a patterned molding layer formed on the each of the plurality of modular displays, wherein the patterned molding layer is formed to correspond to a boundary line between modular displays adjacent to each other among the plurality of modular displays.Type: GrantFiled: July 9, 2020Date of Patent: December 27, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyunsun Kim, Seungryong Han
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Patent number: 11538968Abstract: A display device and a manufacturing method of a display device are provided. A display device includes a base substrate; an electrode on the base substrate, a light emitting element on the base substrate and electrically connected to the electrode, and a solution layer between the base substrate and the light emitting element, the solution layer including a light blocking material.Type: GrantFiled: April 3, 2020Date of Patent: December 27, 2022Assignee: Samsung Display Co., Ltd.Inventors: Daeho Song, Minwoo Kim, Byungchoon Yang, Hyung-Il Jeon, Jinwoo Choi
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Manufacturing method and manufacturing machine for reducing non-radiative recombination of micro LED
Patent number: 11532665Abstract: The present disclosure is a manufacturing method for reducing non-radiative recombination of micro LED. At least one etched LED epitaxial wafer includes a plurality of etching grooves and mesas, an etched sidewall of the mesa includes a stack of a first type semiconductor layer, an active layer and a second type semiconductor layer. Two stages of ALD are performed on the etched LED epitaxial wafer with different temperature ranges. The first ALD can be used to repair dangling bonds and defects on the etched side walls of the mesa, and the second ALD can be used to form a passivation layer on the etched side walls of the mesa. By the manufacturing method of the present disclosure, non-radiative recombination of the micro LED can be reduced, and the luminous brightness and luminous efficiency of the micro LED can be improved.Type: GrantFiled: December 21, 2020Date of Patent: December 20, 2022Assignee: SKY TECH INC.Inventor: Jing-Cheng Lin -
Patent number: 11527465Abstract: A method includes forming a plurality of dielectric layers, forming a plurality of redistribution lines in the plurality of dielectric layers, forming stacked vias in the plurality of dielectric layers with the stacked vias forming a continuous electrical connection penetrating through the plurality of dielectric layers, forming a dielectric layer over the stacked vias and the plurality of dielectric layers, forming a plurality of bond pads in the dielectric layer, and bonding a device die to the dielectric layer and a first portion of the plurality of bond pads through hybrid bonding.Type: GrantFiled: April 5, 2021Date of Patent: December 13, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chen-Hua Yu, Sung-Feng Yeh, Ming-Fa Chen, Hsien-Wei Chen
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Patent number: 11522007Abstract: The present disclosure provides a display panel and a display device. The display panel includes: a base substrate; a plurality of micro-LED groups located on the base substrate, wherein each of the plurality of micro-LED groups includes at least three micro-LEDs, and at least two micro-LEDs of each said micro-LED group have their longer sides arranged in different directions; and a shielding layer comprising a plurality of apertures located in shielding portions, wherein the shielding portions are located between adjacent micro-LEDs, and wherein the plurality of apertures each correlates one of the micro-LEDs.Type: GrantFiled: June 24, 2020Date of Patent: December 6, 2022Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Xiaoyue Su, Yang Zeng, Shihao Tang
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Patent number: 11515155Abstract: Methods of improved selectively for SAM-based selective depositions are described. Some of the methods include forming a SAM on a second surface and a carbonized layer on the first surface. The substrate is exposed to an oxygenating agent to remove the carbonized layer from the first surface, and a film is deposited on the first surface over the protected second surface. Some of the methods include overdosing a SAM molecule to form a SAM layer and SAM agglomerates, depositing a film, removing the agglomerates, reforming the SAM layer and redepositing the film.Type: GrantFiled: March 10, 2021Date of Patent: November 29, 2022Assignee: APPLIED MATERIALS, INC.Inventors: Chang Ke, Michael S. Jackson, Liqi Wu, Lei Zhou, Shuyi Zhang, David Thompson, Paul F. Ma, Biao Liu, Cheng Pan
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Patent number: 11508892Abstract: This specification discloses heatsinks comprising a continuous sheet of thermally conductive material folded into a structure comprising a plurality of fins defined by bends in the sheet and arranged to transfer heat to surrounding air. The sheet may be further folded to form a planar surface defined by one or more bends in the sheet and on which one or more LEDs may be mounted. Optionally, the sheet may be further folded to partially enclose the fins within a tunnel formed by side walls defined by bends in the sheet.Type: GrantFiled: April 27, 2020Date of Patent: November 22, 2022Assignee: Lumileds LLCInventors: Jeroen Den Breejen, Zongjie Yuan, Ronan Letoquin
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Patent number: 11508703Abstract: A light emitting device is provided. The light emitting device includes a package structure, a first light emitting chip, a second light emitting chip, a third light emitting chip, a first encapsulant, a second encapsulant, and a third encapsulant. The first light emitting chip, the second light emitting chip, and the third light emitting chip are disposed in a first cavity, a second cavity, and a third cavity of a body of the package structure, and electrically connected with a first electrode pair, a second electrode pair, and a third electrode pair that are covered by the body. The first encapsulant, the second encapsulant, and the third encapsulant are filled in the first cavity, the second cavity, and the third cavity. A first opening of the first cavity is larger in size than a second opening of the second cavity and a third opening of the third cavity.Type: GrantFiled: August 12, 2020Date of Patent: November 22, 2022Assignees: LITE-ON OPTO TECHNOLOGY (CHANGZHOU) CO., LTD., LITE-ON TECHNOLOGY CORPORATIONInventors: Chen-Hsiu Lin, Yu-Yu Chang, Chien-Shun Huang
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Patent number: 11501966Abstract: Methods and systems for selectively depositing dielectric films on a first surface of a substrate relative to a passivation layer previously deposited on a second surface are provided. The methods can include at least one cyclical deposition process used to deposit material on the first surface while the passivation layer is removed, thereby preventing deposition over the passivation layer.Type: GrantFiled: December 7, 2020Date of Patent: November 15, 2022Assignee: ASM IP HOLDING B.V.Inventors: Eva E. Tois, Viljami J. Pore
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Patent number: 11502232Abstract: A pixel structure including a substrate, a first conductor, a second conductor, and a plurality of dies is provided. The first conductor is disposed on the substrate and includes a plurality of first body portions extending along a first direction, a plurality of first branch portions extending along a second direction, and a plurality of second branch portions extending along the first direction. The second conductor is disposed on the substrate and includes a plurality of second body portions extending along the second direction and a plurality of third branch portions extending along the first direction. The die includes two electrodes, wherein the first branch portions are connected between the first body portions and the second branch portions, and the two electrodes are respectively connected to the first branch portions and the second body portions or respectively connected to the second branch portions and the third branch portions.Type: GrantFiled: July 14, 2020Date of Patent: November 15, 2022Assignee: Industrial Technology Research InstituteInventors: Ming-Hsien Wu, Yao-Jun Tsai
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Patent number: 11495662Abstract: Semiconductor devices and methods are provided. A semiconductor device according to the present disclosure includes a first gate-all-around (GAA) transistor having a first plurality of channel members, and a second GAA transistor having a second plurality of channel members. A pitch of the first plurality of channel members is substantially identical to a pitch of the second plurality of channel members. The first plurality of channel members has a first channel member thickness (MT1) and the second plurality of channel members has a second channel member thickness (MT2) greater than the first channel member thickness (MT1).Type: GrantFiled: September 16, 2019Date of Patent: November 8, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventor: Jhon Jhy Liaw
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Patent number: 11489004Abstract: A display substrate is provided. The display substrate includes a substrate layer. A functional layer is disposed on the substrate layer, and a first positioning layer is disposed on the functional layer. A constituent material of the first positioning layer includes a magnetic material. The provided display substrate utilizes a novel magnetic positioning function layer structure, so that it can self-align with the other functional layer structure disposed on the magnetic positioning layer structure, thereby improving an alignment precision between the two structures, and reducing a repair cost which may be caused due to insufficient alignment precision. At the same time, a self-alignment process also simplifies the corresponding alignment operation.Type: GrantFiled: November 4, 2019Date of Patent: November 1, 2022Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Macai Lu
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Patent number: 11482511Abstract: A lighting device and a related manufacturing method are provided. The lighting device includes a substrate and at least one lighting unit formed on the substrate. The lighting unit includes an accommodating hole and a first light emitting diode spaced apart from the accommodating hole. The accommodating hole is for a second light emitting diode.Type: GrantFiled: June 28, 2020Date of Patent: October 25, 2022Assignee: InnoLux CorporationInventors: Jia-Yuan Chen, Tsung-Han Tsai, Kuan-Feng Lee
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Patent number: 11476387Abstract: In one approach, an LED array uses a combination of a half cavity and straight reflective sidewalls to improve the power distribution so that more light falls within the collection angle of the projection optics. From the bottom upwards, the LEDs in the array include a reflector, a thinner p-layer and a thicker n-layer. An active region (such as quantum wells) between the p-layer and the p-layer generates light. Without additional structures, the generated light would have an isotropic distribution and not much of the light would fall within the collection angle of the projection optics. However, the bottom reflector and p-layer form a half cavity for the light emitted from the active region. This alters the angular power distribution. Straight reflective sidewalls extending from the active region upwards into the n-layer further reflect light from the altered power distribution into the collection angle of the projection optics.Type: GrantFiled: January 21, 2021Date of Patent: October 18, 2022Assignee: Tectus CorporationInventors: Kwong-Hin Henry Choy, Ewelina Natalia Lucow, Paul Scott Martin