Patents by Inventor Haijiang Yu

Haijiang Yu 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: 20240361541
    Abstract: Method and apparatus for vision assisted optical alignment. In the apparatus, one or more main waveguides of a photonic integrated circuit (PIC) are selected, and respective one or more corresponding auxiliary waveguides are terminated with a respective scattering structure. The scattering structures deflect externally supplied light out of the PIC for detection by a camera or photo detector to provide feedback on the amount of light coupled into the main waveguides during the optical alignment process. The method and apparatus eliminate the need to power up the PIC circuitry, speed up the subsequent alignment process, and allow control and failure analysis of multiple channels at once.
    Type: Application
    Filed: April 28, 2023
    Publication date: October 31, 2024
    Applicant: Intel Corporation
    Inventors: Alexander Krichevsky, Boping Xie, Sunil Priyadarshi, Chao Tian, Guojiang Hu, Hari Mahalingam, Haijiang Yu
  • Publication number: 20230087429
    Abstract: Embodiments herein relate to a photonic integrated circuit (PIC). The PIC may include a transmit module and a receive module. An optical port of the PIC may be coupled to the transmit module or the receive module. A semiconductor optical amplifier (SOA) may be positioned in a signal pathway between the optical port and the transmit module or the receive module. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Inventors: Giovanni Gilardi, Haijiang Yu, Ansheng Liu, Xiaoxing Zhu, Yuliya Akulova, Raghuram Narayan, Pierre Doussiere, Christian Malouin, Olufemi Dosunmu
  • Publication number: 20160176130
    Abstract: Disclosed herein is a method of making an optical device, such as a photo diode or vertical cavity surface emitting laser (VCSEL). The method entails forming an active device within a substrate, forming a layer of surfactant over the active device; injecting microlens material over the surfactant layer directly above the active device, and curing the injected microlens material to form a microlens over the surfactant layer above the active device, such that the active device is capable of receiving or transmitting an optical signal by way of the microlens. An inkjet printing device may be used to inject the microlens material over the active device.
    Type: Application
    Filed: December 21, 2014
    Publication date: June 23, 2016
    Inventors: Haijiang Yu Yu, June Nguyen, Devang Parekh, Michael Cheng, Chien-Yu Kuo, Wenbin Jiang
  • Patent number: 8236693
    Abstract: The gate and active regions of a device are formed and alternating steps of applying and removing nitride and oxide layers allows exposing silicon in different areas while keeping silicon or polysilicon in other area covered with nitride. Metal layers are deposited over the exposed silicon or polysilicon and annealing forms a silicide layer in the selected exposed areas. The oxide and/or nitride layers are removed from the covered areas and another metal layer is deposited. The anneal process is repeated with silicide of one thickness formed over the second exposed areas with additional thickness of silicide formed over the previous silicide thickness.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: August 7, 2012
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Wen Yu, Paul Besser, Bin Yang, Haijiang Yu, Simon S. Chan
  • Publication number: 20080286921
    Abstract: The gate and active regions of a device are formed and alternating steps of applying and removing nitride and oxide layers allows exposing silicon in different areas while keeping silicon or polysilicon in other area covered with nitride. Metal layers are deposited over the exposed silicon or polysilicon and annealing forms a silicide layer in the selected exposed areas. The oxide and/or nitride layers are removed from the covered areas and another metal layer is deposited. The anneal process is repeated with silicide of one thickness formed over the second exposed areas with additional thickness of silicide formed over the previous silicide thickness.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 20, 2008
    Applicants: Advanced Micro Devices, Inc., SPANSION LLC
    Inventors: Wen Yu, Paul Besser, Bin Yang, Haijiang Yu, Simon S. Chan