Patents by Inventor Chuen Tan

Chuen Tan 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).

  • Patent number: 11776859
    Abstract: Embodiments may include methods, systems, and apparatuses for care area based swath speed for throughput and sensitivity improvement. A method may comprise receiving scan region of a die. The scan region of the die may have a first care area at a controller configured to control an inspection tool, wherein the inspection tool includes a stage having the die disposed thereon. The method may then include scanning a first portion of the scan region at a fast feed rate and the first care area at a slow feed rate. Scanning may include emitting particles in a particle beam toward the die resulting an incidence on the die. Emitting may be performed using a particle emitter. Scanning may then include detecting a portion of particles reflected from the incidence. Detecting may be performed using a detector. Scanning may then include changing a position of the stage relative to the incidence.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: October 3, 2023
    Assignee: KLA CORPORATION
    Inventors: Anuj Pandey, Dong Chen, Kwok-Chuen Tan
  • Publication number: 20200203237
    Abstract: Embodiments may include methods, systems, and apparatuses for care area based swath speed for throughput and sensitivity improvement. A method may comprise receiving scan region of a die. The scan region of the die may have a first care area at a controller configured to control an inspection tool, wherein the inspection tool includes a stage having the die disposed thereon. The method may then include scanning a first portion of the scan region at a fast feed rate and the first care area at a slow feed rate. Scanning may include emitting particles in a particle beam toward the die resulting an incidence on the die. Emitting may be performed using a particle emitter. Scanning may then include detecting a portion of particles reflected from the incidence. Detecting may be performed using a detector. Scanning may then include changing a position of the stage relative to the incidence.
    Type: Application
    Filed: October 31, 2019
    Publication date: June 25, 2020
    Inventors: Anuj Pandey, Dong Chen, Kwok-Chuen Tan
  • Publication number: 20150048509
    Abstract: A wafer bonding layer and a process for using the same for bonding wafers are presented. The wafer bonding process includes providing a first wafer, providing a second type wafer and providing a water bonding layer. The wafer bonding layer is provided separately on a contact surface layer of the first or second wafer as part of a CMOS compatible processing recipe.
    Type: Application
    Filed: August 14, 2014
    Publication date: February 19, 2015
    Inventors: Ranganathan NAGARAJAN, Fu Chuen TAN, Kia Hwee Samuel LOW, Chun Hoe YIK, Jiaqi WU, Jingze TIAN, Pradeep Ramachandramurthy YELEHANKA, Rakesh KUMAR
  • Publication number: 20070055896
    Abstract: An on-die voltage regulator having a suspend mode voltage generator and an active mode voltage generator. Output drivers of the active mode voltage generator are disabled in stages to reduce voltage droop when transitioning between the active mode voltage generator and the suspend mode voltage generator.
    Type: Application
    Filed: September 2, 2005
    Publication date: March 8, 2007
    Inventors: Kim Er, Yick Ho, Chuen Tan