Patents by Inventor En-Shou Chang

En-Shou 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).

  • Lead frame structure and applications thereof
    Patent number: 7576418
    Abstract: A lead frame structure comprises a side rail, a first paddle, a second paddle, a plurality of leads, and an downset anchor bar. The first paddle is connected to the side rail via at least one first tie bar, and the second paddle is connected to the side rail via at least one-second tie bar. The first paddle and the second paddle separated from each other are used to define an area to support a chip. These leads set on the side rail expends toward to the chip supporting area. One end of the downset anchor bar is connected to the side rail, and the other end of the downset anchor bar has a protrusion portion which is between the first paddle and the second paddle and is downset from the side rail.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: August 18, 2009
    Assignee: Orient Semiconductor Electronics, Ltd.
    Inventors: Chia-Yu Chen, Ta-Lin Pong, En-Shou Chang, I-Chi Cheng, Chen-Ping Su
  • LEAD FRAME STRUCTURE AND APPLICATIONS THEREOF
    Publication number: 20090121329
    Abstract: A lead frame structure comprises a side rail, a first paddle, a second paddle, a plurality of leads, and an downset anchor bar. The first paddle is connected to the side rail via at least one first tie bar, and the second paddle is connected to the side rail via at least one-second tie bar. The first paddle and the second paddle separated from each other are used to define an area to support a chip. These leads set on the side rail expends toward to the chip supporting area. One end of the downset anchor bar is connected to the side rail, and the other end of the downset anchor bar has a protrusion portion which is between the first paddle and the second paddle and is downset from the side rail.
    Type: Application
    Filed: July 3, 2008
    Publication date: May 14, 2009
    Inventors: Chia-Yu Chen, Ta-Lin Pong, En-Shou Chang, I-Chi Cheng, Chen-Ping Su
  • System and method for detecting program hazards in processors with unprotected pipelines
    Patent number: 6957325
    Abstract: A process and system for analyzing executable portion of computer code for processors with unprotected pipelines is provided. The process assumes a worst set of current processor states; analyzes plural control paths for possible hazards by computing an induced set of processor states after executing a computer instruction; and adjusts the worst set of current processor states based on program annotations to the computer instruction.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: October 18, 2005
    Assignee: Mindspeed Technologies, Inc.
    Inventors: En-Shou Chang, Rajat Mathur, Charles P. Siska, Chao Xu