Patents by Inventor Chenjing L. Fernando

Chenjing L. Fernando 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: 6388288
    Abstract: Integration of dual voltages on a single chip can be accomplished with a minimum of extra masks by optimizing only the MDD implant of the peripheral transistors, while other implants remain the same for both transistor types. This meets lifetime specifications without unnecessary expense.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: May 14, 2002
    Assignee: Texas Instruments Incorporated
    Inventors: Karthik Vasanth, Sharad Saxena, Richard G. Burch, Purnendu K. Mozumder, Joseph C. Davis, Chenjing L. Fernando, Suraj Rao
  • Patent number: 6381564
    Abstract: A method and system for providing optimal tuning for complex simulators. The method and system include initially building at least one RSM model having input and output terminals. Then there is provided a simulation-free optimization function by constructing an objective function from the outputs at the output terminals of the at least one RSM model and experimental data. The objective function is optimized in an optimizer and the optimized objective function is fed to the input terminal of the RSM. Building of at least one RSM model includes establishing a range for the simulation, running a simulation experiment for the designed experiment, extracting relevant data from said experiment and building the RSM model from the extracted relevant data. The step of running a simulation experiment comprises the step of running a DOE/Opt operation.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: April 30, 2002
    Assignee: Texas Instruments Incorporated
    Inventors: Joseph C. Davis, Karthik Vasanth, Sharad Saxena, Purnendu K. Mozumder, Suraj Rao, Chenjing L. Fernando, Richard G. Burch
  • Patent number: 6317640
    Abstract: Method for adequately modeling process induced variabilities is disclosed that comprises the steps of acquiring experimental data and defining a particular design space. Values for the mean and standard deviation of the experimental data at each of the points defining the design space are calculated. The experimental values of the output parameters at each of the design points is normalized to extract the shape of the distribution of each of the design points. The normalized values are then merged to form a cumulative distribution function associated with the data. The cumulative distribution function is applied to a new design point in a predicted fashion by first calculating a mean and standard deviation value for the new point by interpolating from the mean and standard deviation values from the experimental data. The cumulative distribution function is then scaled and centered using the interpolated mean and standard deviation values to provide a predicted data distribution for the new design point.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: November 13, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Suraj Rao, Sharad Saxena, Pushkar P. Apte, Purnendu K. Mozumder, Richard Gene Burch, Karthik Vasanth, Joseph Carl Davis, Chenjing L. Fernando
  • Patent number: 6157062
    Abstract: A dual voltage chip is fabricated with no intermediate-doped (LDD or MDD) area in the high-voltage transistors by adjusting the gate sidewall spacer thickness and the source/drain implant.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: December 5, 2000
    Assignee: Texas Instruments Incorporated
    Inventors: Karthik Vasanth, Richard G. Burch, Sharad Saxena, Purnendu K. Mozumder, Chenjing L. Fernando, Joseph C. Davis, Suraj Rao