Patents by Inventor Frederick LIE

Frederick LIE 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: 20260057547
    Abstract: A system includes a memory and at least one processing device, operatively coupled to the memory, to detect, in an image of a plurality of dies on a substrate, a plurality of alignment marks, wherein each die of the plurality of dies includes at least one alignment mark of the plurality of alignment marks, select an alignment mark from the plurality of alignment marks, determine an identity of the alignment mark, and determine a location of the alignment mark.
    Type: Application
    Filed: August 26, 2024
    Publication date: February 26, 2026
    Inventors: Chi-Ming Tsai, Thomas L. Laidig, Aidyn Kemeldinov, Shih-Hao Kuo, Frederick Lie, Min-Sheng Suen
  • Patent number: 12189299
    Abstract: A digital lithography system includes adjacent scan regions, exposure units located above the scan regions, a memory, and a processing device operatively coupled to the memory. The exposure units include a first exposure unit associated with a first scan region and a second exposure unit associated with a second scan region. The processing device is to initiate a digital lithography process to pattern a substrate disposed on a stage in accordance with instructions. The processing device is to further perform a first pass of the first exposure unit over a stitching region at an interface of the first scan region and the second scan region at a first time. The processing device is to further perform a second pass of the second exposure unit over the stitching region at a second time that varies from the first time by less than forty seconds.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: January 7, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Ying-Chiao Wang, Thomas L Laidig, Chun-Chih Chuang, Frederick Lie, Chen-Yuan Hsieh, Chun-Cheng Yeh
  • Publication number: 20240288778
    Abstract: A digital lithography system includes adjacent scan regions, exposure units located above the scan regions, a memory, and a processing device operatively coupled to the memory. The exposure units include a first exposure unit associated with a first scan region and a second exposure unit associated with a second scan region. The processing device is to initiate a digital lithography process to pattern a substrate disposed on a stage in accordance with instructions. The processing device is to further perform a first pass of the first exposure unit over a stitching region at an interface of the first scan region and the second scan region at a first time. The processing device is to further perform a second pass of the second exposure unit over the stitching region at a second time that varies from the first time by less than forty seconds.
    Type: Application
    Filed: February 28, 2023
    Publication date: August 29, 2024
    Inventors: Ying-Chiao Wang, Thomas L Laidig, Chun-Chih Chuang, Frederick Lie, Chen-Yuan Hsieh, Chun-Cheng Yeh
  • Patent number: 11934107
    Abstract: Embodiments described herein relate to methods of forming layers using maskless based lithography. In these embodiments, the methods implement ladders of dose change such that a geometric shape can be divided into overlaying sections. The overlaying sections can include a different dose of each section such that taper control can be achieved. The taper can be achieved by manipulating the geometry “mask data” into overlaying sections that are exposed by various doses controlled by pixel blending (PB) exposure techniques. To perform the methods described herein, a maskless lithography tool is used. The maskless lithography tool includes a controller that performs software based “mask data” manipulation.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: March 19, 2024
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Shih-Hsien Lee, Tingwei Chiu, Frederick Lie, Jang Fung Chen
  • Publication number: 20240077805
    Abstract: Embodiments described herein relate to methods of forming layers using maskless based lithography. In these embodiments, the methods implement ladders of dose change such that a geometric shape can be divided into overlaying sections. The overlaying sections can include a different dose of each section such that taper control can be achieved. The taper can be achieved by manipulating the geometry “mask data” into overlaying sections that are exposed by various doses controlled by pixel blending (PB) exposure techniques. To perform the methods described herein, a maskless lithography tool is used. The maskless lithography tool includes a controller that performs software based “mask data” manipulation.
    Type: Application
    Filed: October 9, 2019
    Publication date: March 7, 2024
    Inventors: Shih-Hsien LEE, Tingwei CHIU, Frederick LIE, Jang Fung CHEN