Patents by Inventor Ching-Ren Cheng

Ching-Ren Cheng 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: 12227410
    Abstract: The present disclosure provides a semiconductor device. The semiconductor device includes a first device and a second device disposed adjacent to the first device; a conductive pillar disposed adjacent to the first device or the second device; a molding surrounding the first device, the second device and the conductive pillar; and a redistribution layer (RDL) over the first device, the second device, the molding and the conductive pillar, wherein the RDL electrically connects the first device to the second device and includes an opening penetrating the RDL and exposing a sensing area over the first device.
    Type: Grant
    Filed: January 5, 2024
    Date of Patent: February 18, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Po Chen Yeh, Yi-Hsien Chang, Fu-Chun Huang, Ching-Hui Lin, Chiahung Liu, Shih-Fen Huang, Chun-Ren Cheng
  • Publication number: 20250056874
    Abstract: One aspect of the present disclosure pertains to a device. The device includes a substrate, a logic circuit disposed on the substrate, and a nanoelectromechanical systems (NEMS) device electrically connected to the logic circuit and formed on the substrate. The NEMS device includes a first electrode electrically connected to the logic circuit, a second electrode electrically connected to a first power supply, a movable feature electrically connected to the second electrode, and a control electrode operable to move the movable feature relative to the first electrode.
    Type: Application
    Filed: November 17, 2023
    Publication date: February 13, 2025
    Inventors: Hung-Li Chiang, Ching-Hui Lin, Chun-Ren Cheng, Iuliana Radu
  • Publication number: 20160292845
    Abstract: Embodiments of the present invention provide methods, systems, apparatuses, and computer program products for determining the contact edge roughness of a contact hole etched in a wafer. One embodiment provides a method comprising acquiring image data corresponding to the hole; based at least in part on the image data, determining a hole profile; determining an ideal shape for the hole based at least in part on the hole profile; and determining the contact edge roughness based at least in part on the hole profile and ideal shape. The hole profile may be configured to describe a distance from a reference point of the contact hole to an edge of the contact hole for each of a predetermined set of angles and the ideal shape may be described by a distance from a reference point of the ideal shape to an edge of the ideal shape for each predetermined angle.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Inventor: CHING-REN CHENG
  • Patent number: 9435847
    Abstract: Methods for testing a special pattern and testing a probe card defect in wafer testing are provided. In the method for testing the special pattern, a wafer is divided into multiple testing partitions, in which each of the testing partitions includes multiple dies. The dies in each testing partition of the wafer are respectively tested by multiple sites of the probe card to obtain a testing map. Then, a number of the dies having defects and a number of the dies without defect within each of the testing partitions in the testing map are accumulated to construct chi-square test and calculate a maximum P-value. Finally, it is determined whether a minimum of the maximum P-values of all of the testing partitions is smaller than a certain predetermined threshold. If the minimum is smaller than the threshold, it is determined that the testing map of the wafer contains the special pattern.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: September 6, 2016
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Shih-Hsien Chang, Kai-Wen Tu, Yen Lin, Ching-Ren Cheng
  • Publication number: 20150377951
    Abstract: Methods for testing a special pattern and testing a probe card defect in wafer testing are provided. In the method for testing the special pattern, a wafer is divided into multiple testing partitions, in which each of the testing partitions includes multiple dies. The dies in each testing partition of the wafer are respectively tested by multiple sites of the probe card to obtain a testing map. Then, a number of the dies having defects and a number of the dies without defect within each of the testing partitions in the testing map are accumulated to construct chi-square test and calculate a maximum P-value. Finally, it is determined whether a minimum of the maximum P-values of all of the testing partitions is smaller than a certain predetermined threshold. If the minimum is smaller than the threshold, it is determined that the testing map of the wafer contains the special pattern.
    Type: Application
    Filed: June 26, 2014
    Publication date: December 31, 2015
    Inventors: Shih-Hsien Chang, Kai-Wen Tu, Yen Lin, Ching-Ren Cheng