Patents by Inventor Duen-Shun Wen

Duen-Shun Wen 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: 20020104032
    Abstract: The present invention provides a method of extending the processor core clock based on feedback provided by application requirements in order to reduce power consumption. Power saving in a processor can be achieved by using the following methods of stopping the clock. Method of achieving this are by stopping the clock of the processor under software control, stopping or gating the clock of certain units that are not being used, extending the clock of the processor based on a combination of software and the type of instruction being executed. extending the clock of certain functional units or certain areas of the processor instead of stalling the processor, stalling the clock when the processor needs to be stalled and restarted when the stall condition is about to end, extending the clock so that instructions can be executed at a slower frequency, implementing a combination of the before-described schemes.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 1, 2002
    Inventors: Mazin Khurshid, Duen-Shun Wen
  • Patent number: 5191509
    Abstract: A trench capacitor structure suitable for inclusion in integrated circuit devices and method for forming the same provides increased electrode surface area and capacitance by means of a textured surface of one of the capacitor electrodes. The textured surface is achieved by differentially etching grain boundaries of a doped polysilicon layer or by direct deposition of hemispherical grain polysilicon to form the electrode. Additional capacitance and contact area can be obtained by additional etching of the trench bottom prior to electrode deposition and dielectric growth.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: March 2, 1993
    Assignee: International Business Machines Corporation
    Inventor: Duen-Shun Wen