Patents Examined by Mohammad M Choudhry
  • Patent number: 11367656
    Abstract: Provided is a wafer processing method for dividing a wafer having devices formed on a front side thereof into individual device chips, the front side being partitioned by a plurality of crossing division lines having a testing metal pattern formed in part thereof into a plurality of regions where the respective devices are formed. The method includes a first modified layer forming step of applying a laser beam of a wavelength having a transmitting property to the wafer with a focal point of the laser beam positioned inside the wafer at a first depth from the back side, thereby forming a first modified layer along a division line, and a second modified layer forming step of applying the laser beam with the focal point positioned at a second depth shallower than the first depth, thereby forming a second modified layer along the same division line.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: June 21, 2022
    Assignee: DISCO CORPORATION
    Inventor: Masaru Nakamura
  • Patent number: 11362186
    Abstract: A non-volatile memory device is provided. The non-volatile memory device includes a substrate, a first gate structure disposed on the substrate, a second gate structure disposed on the substrate, and a memory gate structure disposed on the substrate and between the first gate structure and the second gate structure. The memory gate structure at least covers the first gate structure and the second gate structure. The memory gate structure includes a charge storage layer disposed on the substrate and a memory gate layer disposed on the charge storage layer.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: June 14, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Kuo-Lung Li, Chih-Hao Pan, Szu-Ping Wang, Po-Hsuan Chen, Chi-Cheng Huang
  • Patent number: 11361998
    Abstract: A method for manufacturing an electronic device is provided. The method includes the following steps: providing a first mother substrate including a plurality of first substrate areas; performing a first half-cutting step on the first mother substrate to produce a first crack to define the plurality of first substrate areas; disposing a first optical film on the first mother substrate having the first crack, wherein the first optical film has a first cutting region corresponding to the first crack; performing a first cutting step in the first cutting region of the first optical film; and separating the plurality of first substrate areas to form a plurality of first substrates.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: June 14, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: I-Chang Liang, Chien-Lin Lin, Chin-Lung Ting
  • Patent number: 11362012
    Abstract: In a semiconductor device, a first protection film covers an end portion of a first metal layer disposed on a semiconductor substrate, and has a first opening above the first metal layer. A second metal layer is disposed on the first metal layer in the first opening. An oxidation inhibition layer is disposed on the second metal layer in the first opening. A second protection film has a second opening and covers an end portion of the oxidation inhibition layer and the first protection film. The second protection film has an opening peripheral portion on a periphery of the second opening, and covers the end portion of the oxidation inhibition layer. An adhesion portion adheres to a portion of a lower surface of the opening peripheral portion. The adhesion portion has a higher adhesive strength with the second protection film than the oxidation inhibition layer.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: June 14, 2022
    Assignee: DENSO CORPORATION
    Inventor: Yasushi Okura
  • Patent number: 11362102
    Abstract: A semiconductor device includes a substrate having thereon at least one active area and at least one trench isolation region adjacent to the at least one active area. A charge trapping structure is disposed on the at least one active area and at least one trench isolation region. At least one divot is disposed in the at least one trench isolation region adjacent to the charge trapping structure. A silicon oxide layer is disposed in the at least one divot. A gate oxide layer is disposed on the at least one active area around the charge trapping structure.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: June 14, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Chia-Wen Wang
  • Patent number: 11361972
    Abstract: Some embodiments include a method in which an assembly is formed to have a first silicon-dioxide-containing-material and a second silicon-dioxide-containing-material. The first silicon-dioxide-containing-material has a higher concentration of dopant therein than does the second silicon-dioxide-containing-material. The first silicon-dioxide-containing-material is selectively removed relative to the second silicon-dioxide-containing-material using a mixture which includes hydrofluoric acid, a second acid and an organic solvent. The organic solvent may include at least one ester and/or at least one ether. The second acid may have a pKa of less than about 5.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: June 14, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Jerome A. Imonigie, Ramaswamy Ishwar Venkatanarayanan, Pranav P. Sharma, Eric E. Kron, Sanjeev Sapra
  • Patent number: 11352253
    Abstract: A semiconductor device comprises a structured metal layer. The structured metal layer lies above a semiconductor substrate. In addition, a thickness of the structured metal layer is more than 100 nm. Furthermore, the semiconductor device comprises a covering layer. The covering layer lies adjacent to at least one part of a front side of the structured metal layer and adjacent to a side wall of the structured metal layer. In addition, the covering layer comprises amorphous silicon carbide.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: June 7, 2022
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Markus Kahn, Anna-Katharina Kaiser, Soenke Pirk, Juergen Steinbrenner, Julia-Magdalena Straeussnigg
  • Patent number: 11355394
    Abstract: Methods of dicing semiconductor wafers, each wafer having a plurality of integrated circuits, are described. In an example, a method of dicing a semiconductor wafer having a plurality of integrated circuits involves forming a mask above the semiconductor wafer, the mask including a layer covering and protecting the integrated circuits. The mask is patterned with a laser scribing process to provide a patterned mask with gaps, exposing regions of the semiconductor wafer between the integrated circuits. Subsequent to patterning the mask, a breakthrough treatment is performed, the breakthrough treatment comprising a first physical bombardment operation, a second iterative isotropic and directional plasma etch operation, and a third directional breakthrough operation. Subsequent to performing the breakthrough treatment, the semiconductor wafer is plasma etched through the gaps in the patterned mask to singulate the integrated circuits.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 7, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Wei-Sheng Lei, Brad Eaton, Ajay Kumar
  • Patent number: 11348846
    Abstract: Embodiments include devices and methods for detecting material deposition and material removal performed by a wafer processing tool. In an embodiment, one or more micro sensors mounted on a process chamber of the wafer processing tool are capable of operating under vacuum conditions and/or may measure material deposition and removal rates in real-time during a plasma-less wafer fabrication process. Other embodiments are also described and claimed.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: May 31, 2022
    Assignee: Applied Materials, Inc.
    Inventor: Leonard Tedeschi
  • Patent number: 11335659
    Abstract: Various semiconductor chip solder bump and underbump metallization (UBM) structures and methods of making the same are disclosed. In one aspect, a method is provided that includes forming a first underbump metallization layer on a semiconductor chip is provided. The first underbump metallization layer has a hub, a first portion extending laterally from the hub, and a spoke connecting the hub to the first portion. A polymer layer is applied to the first underbump metallization layer. The polymer layer includes a first opening in alignment with the hub and a second opening in alignment with the spoke. A portion of the spoke is removed via the second opening to sever the connection between the hub and the first portion.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: May 17, 2022
    Assignee: ATI TECHNOLOGIES ULC
    Inventors: Roden R. Topacio, Suming Hu, Yip Seng Low
  • Patent number: 11335816
    Abstract: A metal-insulator-metal (MIM) capacitor and a process of forming the same are disclosed. The process includes steps of: forming a lower electrode that provides a lower layer and an upper layer; forming an opening in the upper layer; forming a supplemental layer on the lower layer exposed in the opening; heat treating the lower electrode and the supplemental layer; covering at least the upper layer of the lower electrode with an insulating film; and forming an upper electrode in an area on the insulating film, where the area is not overlapped with the supplemental layer and within 100 ?m at most from the supplemental layer. A feature of the MIM capacitor is that the supplemental layer is made of a same metal as a metal contained in the lower layer of the lower electrode.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: May 17, 2022
    Assignee: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
    Inventor: Yoshihide Komatsu
  • Patent number: 11328965
    Abstract: In an embodiment, a system includes: a pad comprising a first side and a second side opposite the first side, wherein the first side is configured to receive a wafer during chemical mechanical planarization (CMP), and a platen adjacent the pad along the second side, wherein the platen comprises a suction opening that interfaces with the second side; a pump configured to produce suction at the suction opening to adhere the second side to the platen; and a sensor configured to collect sensor data characterizing a uniformity of adherence between the pad and the platen, wherein the pump is configured to produce the suction at the suction opening based on the sensor data.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: May 10, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yu-Hsiang Chao, Chi-Ping Lei
  • Patent number: 11309350
    Abstract: This disclosure discloses a light-emitting display module display. The light-emitting display module comprises: a board; and a plurality of light-emitting diode modules arranged in an array configuration on the board; wherein one of the light-emitting diode modules comprises a plurality of encapsulated light-emitting units spaced apart from each other; and one of the encapsulated light-emitting units comprises a plurality of optoelectronic units, a first supporting, and a fence; and wherein the plurality of optoelectronic units are covered by the first supporting structure, and the fence surrounds the first supporting structure and the plurality of optoelectronic units.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: April 19, 2022
    Assignee: EPISTAR CORPORATION
    Inventors: Min Hsun Hsieh, Hsin-Mao Liu
  • Patent number: 11302546
    Abstract: A system includes a plurality of masks and a scanner device. A pattern of a semiconductor device is defined by each of the plurality of masks in a photolithography process. A first mask of the plurality of masks includes a first identification code configured to distinguish the first mask from remaining masks of the plurality of masks. The scanner device is configured to read the first identification code to select the first mask from the plurality of mask, in order to form the pattern of the semiconductor device on a substrate according to the first mask.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: April 12, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Shih-Ming Chin, Hsiao-Chi Huang, Han-Ming Liang
  • Patent number: 11295994
    Abstract: A system may include a wafer that includes ICs and defines cavities. Each cavity may be formed in a BEOL layer of the wafer and proximate a different IC. The system may also include an interposer that includes a transparent layer configured to permit optical signals to pass through. The interposer may also include at least one waveguide located proximate the transparent layer. The at least one waveguide may be configured to adiabatically couple at least one optical signal out of the multiple ICs. Further, the interposer may include a redirecting element optically coupled to the at least one the waveguide. The redirecting element may be located proximate the transparent layer and may be configured to receive the at least one optical signal from the at least one waveguide. The redirecting element may also be configured to vertically redirect the at least one optical signal towards the transparent layer.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: April 5, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventors: Shiyun Lin, Daniel Mahgerefteh, Bryan Park, Jin-Hyoung Lee
  • Patent number: 11289344
    Abstract: When a carrier storing a plurality of dummy wafers therein is transported into a heat treatment apparatus, the carrier is registered as a dummy carrier exclusive to the dummy wafers. A dummy database in which a treatment history of each of the dummy wafers is associated with the carrier is held in a storage part. The treatment history of each of the dummy wafers registered in the dummy database is displayed on a display part of the heat treatment apparatus. An operator of the heat treatment apparatus views the displayed information to thereby appropriately grasp and manage the treatment history of each of the dummy wafers.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: March 29, 2022
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Tomohiro Ueno, Kazuhiko Fuse, Mao Omori
  • Patent number: 11282932
    Abstract: A semiconductor memory device includes a stacked structure and a memory pillar. The stacked structure includes electrode layers and insulating layers alternately provided on a substrate. The memory pillar extends through the stacked structure in a thickness direction. The memory pillar includes a semiconductor layer extending along the thickness direction, and a first insulating film, a charge storage layer, and a second insulating film provided around the semiconductor layer. The charge storage layer contains fluorine, and a fluorine concentration in the charge storage layer has a gradient along a plane direction of the substrate with a peak. A first distance from an inner end of the charge storage layer to the peak in the plane direction is shorter than a second distance from an outer end of the charge storage layer to the peak in the plane direction.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: March 22, 2022
    Assignee: KIOXIA CORPORATION
    Inventors: Shunsuke Okada, Tatsunori Isogai, Masaki Noguchi
  • Patent number: 11282726
    Abstract: A method for measuring wafer bow value comprising the following steps is provided. Place a wafer on a wafer chuck apparatus. A gas inlet process is performed on gas inlet passageways of a passageway pair of the wafer chuck apparatus. A gas outlet process is performed on gas outlet passageways of a passageway pair of the wafer chuck apparatus. A leak rate of each channel pair is measured by the control unit when the wafer is placed on the wafer chuck apparatus and during the gas inlet process and gas outlet process are performed. A wafer bow value of the wafer on the wafer chuck apparatus is estimated by the leak rate of the passageway pair. A wafer chuck apparatus is provided. A semiconductor process flow is provided.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 22, 2022
    Assignee: Powerchip Semiconductor Manufacturing Corporation
    Inventors: Cheng-Yen Tsai, Wei-Sheng Chen
  • Patent number: 11276569
    Abstract: Embodiments described herein relate to manufacturing layer stacks of oxide/nitride (ON) layers with minimized in-plane distortion (IPD) and lithographic overlay errors. A method of forming a layer stack ON layers includes flowing a first silicon-containing gas, an oxygen-containing gas, and a first dilution gas. A RF power is symmetrically applied to form a first material layer of SiO2. A second silicon-containing gas, a nitrogen-containing gas, and a second dilution gas are flowed. A second RF power is symmetrically applied to form a second material layer of Si3N4. The flowing the first silicon-containing gas, the oxygen-containing gas, and the first dilution gas, the symmetrically applying the first RF power, the flowing the second silicon-containing gas, the nitrogen-containing gas, and the second dilution gas, and the symmetrically applying the second RF power is repeated until a desired number of first material layers and second material layers make up a layer stack.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: March 15, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Yongjing Lin, Tza-Jing Gung, Masaki Ogata, Yusheng Zhou, Xinhai Han, Deenesh Padhi, Juan Carlos Rocha, Amit Kumar Bansal, Mukund Srinivasan
  • Patent number: 11276797
    Abstract: An optical module and a method of manufacturing an optical module are provided. The optical module includes a carrier, an electronic component, a lid, a diffuser and a bonding layer. The electronic component is disposed on the carrier. The lid is disposed on the carrier. The lid has a first cavity to accommodate the electronic component. The lid defines a first aperture over the first cavity. The diffuser is disposed within the first aperture. The bonding layer is disposed between the diffuser and a sidewall of the first aperture.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: March 15, 2022
    Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventors: Hsiang-Cheng Tsai, Lu-Ming Lai, Hsun-Wei Chan, Ying-Chung Chen