Patents by Inventor May Chang

May Chang 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: 8816403
    Abstract: Provided are semiconductor device cells, methods for forming the semiconductor device cells and a layout style for the semiconductor device cells. The device cells may be repetitive cells used throughout an integrated circuit. The layout style utilizes an area at the polysilicon level that is void of polysilicon and which can accommodate conductive leads therein or thereover. The conductive leads are formed of material typically used for contacts or vias and are disposed beneath the first metal interconnect level which couples device cells to one another. The subjacent local conductive leads may form subjacent signal lines allowing for additional power mesh lines to be included within the limited number of metal tracks that can be accommodated within a device cell and in accordance with metal track design spacing rules.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: August 26, 2014
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jung-Hsuan Chen, May Chang, Chiting Cheng, Li-Chun Tien
  • Publication number: 20130069236
    Abstract: Provided are semiconductor device cells, methods for forming the semiconductor device cells and a layout style for the semiconductor device cells. The device cells may be repetitive cells used throughout an integrated circuit. The layout style utilizes an area at the polysilicon level that is void of polysilicon and which can accommodate conductive leads therein or thereover. The conductive leads are formed of material typically used for contacts or vias and are disposed beneath the first metal interconnect level which couples device cells to one another. The subjacent local conductive leads may form subjacent signal lines allowing for additional power mesh lines to be included within the limited number of metal tracks that can be accommodated within a device cell and in accordance with metal track design spacing rules.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 21, 2013
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jung-Hsuan Chen, May Chang, Chiting Cheng, Li-Chun Tien
  • Publication number: 20030145314
    Abstract: A system and method for dynamically inserting a data cache prefetch instruction into a program executable to optimize the program being executed. The method, and system thereof, monitors the execution of the program, samples on the cache miss events, identifies the time-consuming execution paths, and optimizes the program during runtime by inserting a prefetch instruction into a new optimized code to hide cache miss latency.
    Type: Application
    Filed: January 31, 2002
    Publication date: July 31, 2003
    Inventors: Khoa Nguyen, Wei Hsu, Hui-May Chang
  • Patent number: 6283191
    Abstract: A motorized window blind includes a mounting frame stretched in a longitudinal direction, a blind screen including a mounted end mounted on the mounting frame, a liftable end opposite to the mounted end in a transverse direction relative to the longitudinal direction, and a flexible intermediate portion interposed therebetween. A motor has an output shaft and is mounted in the vicinity of the mounting frame so as to drive a drive transmitting member to move a distal end of the drive transmitting member in the transverse direction between retracted and extended positions where the distal end is proximate and distal to the mounting frame, respectively. A plurality of tubes are telescopically fitted to each other, and extend in the transverse direction.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: September 4, 2001
    Inventor: May-Chang Lo