Patents by Inventor Kangkang Wang

Kangkang Wang 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: 20250231362
    Abstract: A tray for carrying workpieces, such as optical waveguides, is disclosed. The tray includes a plurality of openings, each opening having a plurality of fingers extending toward the center of the opening. The top surface of each finger is sloped downward and comprises an elastomer. In this way, the workpieces contact the fingers along their edges and any nanostructures disposed on the workpiece are not contacted. Further, in some embodiments, the tray is stackable and includes a retention mechanism located on the bottom side of the tray. The retention mechanism on a first tray serves to secure the workpiece disposed on a second tray positioned directly below the first tray. The tray may optionally be used for shipping and other purposes.
    Type: Application
    Filed: January 12, 2024
    Publication date: July 17, 2025
    Inventors: Yaseer Arafath Ahamed, Sudhakar Koppa Hanumanthe Gowda, Charles T. Carlson, Kangkang Wang, Neal Ricks, Anandhakannan Shanmugavel
  • Publication number: 20250102928
    Abstract: Systems and methods for managing multi-objective alignments in imprinting (e.g., single-sided or double-sided) are provided. An example system includes rollers for moving a template roll, a stage for holding a substrate, a dispenser for dispensing resist on the substrate, a light source for curing the resist to form an imprint on the substrate when a template of the template roll is pressed into the resist on the substrate, a first inspection system for registering a fiducial mark of the template to determine a template offset, a second inspection system for registering the imprint on the substrate to determine a wafer registration offset between a target location and an actual location of the imprint, and a controller for controlling to move the substrate with the resist below the template based on the template offset, and determine an overlay bias of the imprint on the substrate based on the wafer registration offset.
    Type: Application
    Filed: December 10, 2024
    Publication date: March 27, 2025
    Inventors: Jeremy Lee Sevier, Satish Sadam, Joseph Michael Imhof, Kang LUO, Kangkang Wang, Roy Matthew Patterson, Qizhen XUE, Brett William Best, Charles Scott Carden, Matthew S. Shafran, Michael Nevin MILLER
  • Patent number: 12231616
    Abstract: Implementations are described herein for performing depth estimation in the agricultural domain, including generating synthetic training data. In various implementations, one or more three-dimensional synthetic plants may be generated in in a three-dimensional space, wherein the one or more three-dimensional synthetic plants include homogenous and densely-distributed synthetic plant parts. The plurality of three-dimensional synthetic plants may be projected onto two-dimensional planes from first and second perspectives in the three-dimensional space to form a pair of synthetic stereoscopic images. The first and second synthetic stereoscopic images of the pair may be annotated to create a mapping between the individual synthetic plant parts across the first synthetic stereoscopic images. A feature matching machine learning model may be trained based on the mapping.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: February 18, 2025
    Assignee: Deere & Company
    Inventors: Kangkang Wang, Alexander Ngai, Zachary Beaver
  • Patent number: 12204258
    Abstract: Systems and methods for managing multi-objective alignments in imprinting (e.g., single-sided or double-sided) are provided. An example system includes rollers for moving a template roll, a stage for holding a substrate, a dispenser for dispensing resist on the substrate, a light source for curing the resist to form an imprint on the substrate when a template of the template roll is pressed into the resist on the substrate, a first inspection system for registering a fiducial mark of the template to determine a template offset, a second inspection system for registering the imprint on the substrate to determine a wafer registration offset between a target location and an actual location of the imprint, and a controller for controlling to move the substrate with the resist below the template based on the template offset, and determine an overlay bias of the imprint on the substrate based on the wafer registration offset.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: January 21, 2025
    Assignee: Magic Leap, Inc.
    Inventors: Jeremy Lee Sevier, Satish Sadam, Joseph Michael Imhof, Kang Luo, Kangkang Wang, Roy Matthew Patterson, Qizhen Xue, Brett William Best, Charles Scott Carden, Matthew S. Shafran, Michael Nevin Miller
  • Patent number: 12185480
    Abstract: The present disclosure relates to a flexible pad and a display device. The flexible pad includes a bottom surface; a contact curved surface opposite to the bottom surface, wherein the contact curved surface is configured to be bonded with a display panel; a first side surface; a second side surface opposite to the first side surface; a third side surface; and a fourth side surface opposite to the third side surface; wherein a preset connecting line direction between the first side surface and the second side surface is a first direction, and in the first direction, a distance between the third side surface and the fourth side surface gradually increases from a middle to two sides.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: December 31, 2024
    Assignees: MIANYANG BOE OPTOELECTRONICS TECHNOLOGY CO., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hongbing Zheng, Kangkang Wang, Mu Zeng, Kuan Zhao, Longli Sun, Bo Zhang
  • Publication number: 20240409449
    Abstract: A method includes forming a plurality of voids within a substrate along a dicing path by exposing the substrate to a first burst of laser pulses at a first location along the dicing path of a respective waveguide combiner. The substrate has a plurality of waveguides. Each laser pulse within the first burst forms a respective void within a first column at the first location to form the plurality of voids. The method further includes exposing the substrate to a second burst of laser pulses at a second location along the dicing path of the respective waveguide combiner. Each laser pulse within the second burst forms the respective void within a second column at the second location to form the plurality of voids. The first column and the second column are spaced by a pitch between a center of the first column and the second column along the dicing path.
    Type: Application
    Filed: August 14, 2024
    Publication date: December 12, 2024
    Inventors: Wei-Sheng LEI, Mahendran CHIDAMBARAM, Kangkang WANG, Ludovic GODET, Visweswaren SIVARAMAKRISHNAN
  • Patent number: 12121925
    Abstract: An optical device coating assembly is provided. The optical device coating assembly includes a substrate support operable to retain an optical device substrate. The coating assembly further includes a first actuator connected to the substrate support. The first actuator is configured to rotate the substrate support. The coating assembly includes a holder configured to hold a coating applicator against an edge of the optical device substrate when the optical device substrate is rotated on the substrate support and a second actuator operable to apply a force on the holder in a direction towards the substrate support. The second actuator is a constant force actuator.
    Type: Grant
    Filed: November 10, 2023
    Date of Patent: October 22, 2024
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kangkang Wang, Yaseer Arafath Ahamed, Yige Gao, Benjamin B. Riordon, Rami Hourani, James D. Strassner, Ludovic Godet, Thinh Nguyen
  • Patent number: 12091349
    Abstract: A method and apparatus for substrate dicing are described. The method includes utilizing a laser to dice a substrate along a dicing path to form a perforated line around each device within the substrate. The dicing path is created by exposing the substrate to bursts of laser pulses at different locations around each device. The laser pulses are delivered to the substrate and may have a pulse repetition frequency of greater than about 25 MHz, a pulse width of less than about 15 picoseconds, and a laser wavelength of about 1.0 ?m to about 5 ?m.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: September 17, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Wei-Sheng Lei, Mahendran Chidambaram, Kangkang Wang, Ludovic Godet, Visweswaren Sivaramakrishnan
  • Patent number: 12001512
    Abstract: Implementations are described herein for automatically labeling synthetic plant parts in synthetic training images, where the synthetic training images and corresponding labels can be used as training data for training machine learning models to detect, segment, and/or classify various parts of plants in digital images. In various implementations, a digital image may be obtained that captures an area. The synthetic training image may be generated to depict one or more three-dimensional synthetic plants in the area. In many implementations, a plant mask, identifying individual plants as a whole in the synthetic training image, as well as a part mask, uniquely identifying one or more parts of the synthetic plant models, can be overlaid on the synthetic training image to label the one or more parts of the synthetic plant models.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: June 4, 2024
    Assignee: MINERAL EARTH SCIENCES LLC
    Inventors: Kangkang Wang, Hong Wu, Bodi Yuan, Zihao Li
  • Patent number: 11975422
    Abstract: Embodiments described herein provide for devices and methods for retaining optical devices. The devices and methods described herein provide for retention of the substrate without contacting sensitive portions of the substrate. The devices and methods utilize retention pads or vacuum pins to contact the exclusion zones i.e., inactive areas of the substrate to retain the substrate and prevent the substrate from moving laterally. Additionally, a holding force retains the substrate in the vertical direction, without contacting the substrate. The methods provide for adjusting the devices to account for multiple geometries of the substrate. The methods further provide for adjusting the devices, such as adjusting a gap between the optical device and a suction pad, to alter the holding force of the devices on the optical devices.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: May 7, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Yaseer Arafath Ahamed, Kangkang Wang, Benjamin B. Riordon, James D. Strassner, Ludovic Godet
  • Patent number: 11930307
    Abstract: The present application provides an image processing method, an image processing apparatus, an electronic device and a computer-readable storage medium, and relates to the field of image processing technologies. An implementation includes: acquiring an image to be processed; converting the image to be processed into a three-channel YUV image; performing a convolution operation on a Y-channel image, a U-channel image and a V-channel image in the three-channel YUV image to generate an R-channel image, a G-channel image and a B-channel image, respectively, and acquiring a three-channel RGB image; and pre-processing the three-channel RGB image. According to the present application, the image pre-processing speed can be improved.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: March 12, 2024
    Assignee: Beijing Baidu Netcom Science Technology Co., Ltd.
    Inventor: Kangkang Wang
  • Publication number: 20240075492
    Abstract: An optical device coating assembly is provided. The optical device coating assembly includes a substrate support operable to retain an optical device substrate. The coating assembly further includes a first actuator connected to the substrate support. The first actuator is configured to rotate the substrate support. The coating assembly includes a holder configured to hold a coating applicator against an edge of the optical device substrate when the optical device substrate is rotated on the substrate support and a second actuator operable to apply a force on the holder in a direction towards the substrate support. The second actuator is a constant force actuator.
    Type: Application
    Filed: November 10, 2023
    Publication date: March 7, 2024
    Inventors: Kangkang WANG, Yaseer Arafath AHAMED, Yige GAO, Benjamin B. RIORDON, Rami HOURANI, James D. STRASSNER, Ludovic GODET, Thinh NGUYEN
  • Patent number: 11850621
    Abstract: An optical device coating assembly is provided. The optical device coating assembly includes a substrate support operable to retain an optical device substrate. The coating assembly further includes a first actuator connected to the substrate support. The first actuator is configured to rotate the substrate support. The coating assembly includes a holder configured to hold a coating applicator against an edge of the optical device substrate when the optical device substrate is rotated on the substrate support and a second actuator operable to apply a force on the holder in a direction towards the substrate support. The second actuator is a constant force actuator.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: December 26, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Kangkang Wang, Yaseer Arafath Ahamed, Yige Gao, Benjamin B. Riordon, Rami Hourani, James D. Strassner, Ludovic Godet, Thinh Nguyen
  • Publication number: 20230296993
    Abstract: Systems and methods for managing multi-objective alignments in imprinting (e.g., single-sided or double-sided) are provided. An example system includes rollers for moving a template roll, a stage for holding a substrate, a dispenser for dispensing resist on the substrate, a light source for curing the resist to form an imprint on the substrate when a template of the template roll is pressed into the resist on the substrate, a first inspection system for registering a fiducial mark of the template to determine a template offset, a second inspection system for registering the imprint on the substrate to determine a wafer registration offset between a target location and an actual location of the imprint, and a controller for controlling to move the substrate with the resist below the template based on the template offset, and determine an overlay bias of the imprint on the substrate based on the wafer registration offset.
    Type: Application
    Filed: August 6, 2021
    Publication date: September 21, 2023
    Inventors: Jeremy Lee SEVIER, Satish SADAM, Joseph Michael IMHOF, Kang LUO, Kangkang WANG, Roy Matthew PATTERSON, Qizhen XUE, Brett William BEST, Charles Scott CARDEN, Matthew S. SHAFRAN, Michael Nevin MILLER
  • Publication number: 20230273355
    Abstract: Methods of dicing optical devices from an optical device substrate are disclosed. The methods include disposing a protective coating only over the optical devices. The optical device substrate includes the optical devices disposed on the surface of the optical device substrate with areas therebetween. The areas of the optical device substrate are exposed by the protective coating. The protective coating includes a polymer, a solvent, and an additive. The methods further include curing the protective coating via a cure process so that the protective coating is water-soluble after the solvent is removed by the cure process, dicing the optical devices from the optical device substrate by projecting a laser beam to the areas between the optical devices, and exposing the protective coating to water to remove the protective coating from the optical devices that are diced.
    Type: Application
    Filed: February 23, 2023
    Publication date: August 31, 2023
    Inventors: Yingdong LUO, Kangkang WANG, Wei-Sheng LEI, Xiaopei DENG, Erica CHEN, Kang LUO, Daihua ZHANG, Rami HOURANI, Ludovic GODET
  • Publication number: 20230227276
    Abstract: Embodiments of the present disclosure generally relate to optical devices. More specifically, embodiments described herein relate to apparatuses and methods for gripping optical devices. In an embodiment, an apparatus for gripping an optical device includes a base coupled to a proximal end of a stem extending from a bottom surface of the base. The apparatus also includes a plurality of arms movably coupled to the bottom surface of the base. The plurality of arms are coupled to an actuator operable to move the plurality of arms laterally along a X-Y plane parallel to the bottom surface of the base. In some embodiments, the apparatus includes a suction pad operable to provide a noncontact vertical suction force.
    Type: Application
    Filed: January 9, 2023
    Publication date: July 20, 2023
    Inventors: Yaseer Arafath AHAMED, Neal RICKS, James D. STRASSNER, Kangkang WANG
  • Patent number: 11698506
    Abstract: Embodiments of the present disclosure relate to a carrier mechanism for retaining optical devices. The carrier mechanism includes adjacent tray assemblies stacked such that a plurality of optical device lenses are retained therebetween. The carrier mechanism retains the plurality of optical device lenses without damaging the plurality of optical device lenses by contacting corners of the optical device lenses. The plurality of optical device lenses are retained with a plurality of support pins and a plurality of capture pins disposed in the tray assemblies. Each tray includes a plurality of openings corresponding to the plurality of optical device lenses such that fluids may contact the plurality of optical device lenses. The carrier mechanism may be utilized in multiple processing methods of the plurality of optical device lenses.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: July 11, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Benjamin B. Riordon, Kangkang Wang
  • Patent number: 11679533
    Abstract: In an example method of forming an optical film for an eyepiece, a curable material is dispensed into a space between a first and a second mold surface. A position of the first mold surface relative to the second mold surface is measured using a plurality of sensors. Each sensor measures a respective relative distance along a respective measurement axis between a respective point on a planar portion of the first mold surface and a respective point on a planar portion of the second mold surface. The measurement axes are parallel to each other, and the points define corresponding triangles on the first and second mold surfaces, respectively. The position of the first mold surface is adjusted relative to the second mold surface based on the measured position, and the curable material is cured to form the optical film.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: June 20, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Jeremy Lee Sevier, Matthew S. Shafran, Satish Sadam, Roy Matthew Patterson, Kangkang Wang, Chieh Chang, Charles Scott Carden
  • Publication number: 20230133026
    Abstract: Implementations are described herein for performing depth estimation in the agricultural domain, including generating synthetic training data. In various implementations, one or more three-dimensional synthetic plants may be generated in in a three-dimensional space, wherein the one or more three-dimensional synthetic plants include homogenous and densely-distributed synthetic plant parts. The plurality of three-dimensional synthetic plants may be projected onto two-dimensional planes from first and second perspectives in the three-dimensional space to form a pair of synthetic stereoscopic images. The first and second synthetic stereoscopic images of the pair may be annotated to create a mapping between the individual synthetic plant parts across the first synthetic stereoscopic images. A feature matching machine learning model may be trained based on the mapping.
    Type: Application
    Filed: February 8, 2022
    Publication date: May 4, 2023
    Inventors: Kangkang Wang, Alexander Ngai, Zachary Beaver
  • Patent number: 11640704
    Abstract: Implementations are described herein for automatically generating synthetic training images that are usable, for instance, as training data for training machine learning models to detect and/or classify various types of plant diseases at various stages in digital images. In various implementations, one or more environmental features associated with an agricultural area may be retrieved. One or more synthetic plant models may be generated to visually simulate one or more stages of a progressive plant disease, taking into account the one or more environmental features associated with the agricultural area. The one or more synthetic plant models may be graphically incorporated into a synthetic training image that depicts the agricultural area.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: May 2, 2023
    Assignee: MINERAL EARTH SCIENCES LLC
    Inventors: Lianghao Li, Kangkang Wang, Zhiqiang Yuan