Patents by Inventor Mark R. Thomann

Mark R. Thomann 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).

  • Test signal generator on substrate to test
    Patent number: 5442642
    Abstract: A test system is added to a substrate and a test mode of operation is added to the timing and control functions of a system on the substrate. When a multifunctional system on the substrate is tested, a first functional subsystem is connected to an external tester. The tester causes the timing and control system to enter the test mode of operation. When in the test mode of operation, the test system provides a signal derived from a signal generator on the substrate. The generated signal is coupled to a second functional subsystem so that functional independence of the first and second subsystems can be verified.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: August 15, 1995
    Assignee: Micron Semiconductor, Inc.
    Inventors: Charles L. Ingalls, Mark R. Thomann
  • Enhancement circuit and method for ensuring diactuation of a switching device
    Patent number: 5349247
    Abstract: An output driver circuit of a DRAM is wired in a push-pull arrangement. A CMOS transistor arrangement provides a strong output signal. This transistor arrangement comprises the pull-up transistor circuit of the push-pull arrangement. A bootstrap circuit gates the NMOS of the CMOS causing an incremental increase in CMOS drain current. The invention is an enhancement circuit for ensuring the deactuation of the pull-down portion of the push-pull arrangement during the action of the CMOS transistor arrangement.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: September 20, 1994
    Assignee: Micron Technology, Inc.
    Inventors: Glen Hush, Mark R. Thomann
  • CMOS bootstrapped output driver method and circuit
    Patent number: 5329186
    Abstract: An output driver circuit of a DRAM is wired in a push-pull arrangement. A CMOS transistor arrangement provides a strong output signal. This transistor arrangement comprises the pull-up transistor circuit of the push-pull arrangement. A bootstrap circuit gates the NMOS of the CMOS causing an incremental increase in CMOS drain current.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: July 12, 1994
    Assignee: Micron Technology, Inc.
    Inventors: Glen Hush, Mark R. Thomann
  • CMOS bootstrapped output driver method and circuit
    Patent number: 5128563
    Abstract: An output driver circuit of a DRAM is wired in a push-pull arrangement. A CMOS transistor arrangement provides a strong output signal. This transistor arrangement comprises the pull-up transistor circuit of the push-pull arrangement. A bootstrap circuit gates the NMOS of the CMOS causing an incremental increase in CMOS drain current.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: July 7, 1992
    Assignee: Micron Technology, Inc.
    Inventors: Glen Hush, Mark R. Thomann