Patents by Inventor Martin Zibert

Martin Zibert 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: 6484307
    Abstract: A method for fabricating and checking at least two structures of an electronic circuit in a semiconductor substrate. By using two different masks, in two method steps, identical configurations of first and second structures are produced in useful areas of the semiconductor substrate. In the scribe lines, bordering the useful area, only first structures are produced using the first mask and only second structures are produced using the second mask.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: November 19, 2002
    Assignee: Infineon Technologies AG
    Inventors: Jürgen Karl, Martin Zibert, Valentin Rosskopf
  • Patent number: 6469355
    Abstract: A configuration for voltage buffering in dynamic memories based on CMOS technology uses the capacitance of a well structure for buffering the amplified word line voltage or the negative word line reverse voltage.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: October 22, 2002
    Assignee: Infineon Technologies AG
    Inventors: Helmut Schneider, Martin Zibert
  • Publication number: 20020016693
    Abstract: A method for fabricating and checking at least two structures of an electronic circuit in a semiconductor substrate. By using two different masks, in two method steps, identical configurations of first and second structures are produced in useful areas of the semiconductor substrate. In the scribe lines, bordering the useful area, only first structures are produced using the first mask and only second structures are produced using the second mask.
    Type: Application
    Filed: March 19, 2001
    Publication date: February 7, 2002
    Inventors: Jurgen Karl, Martin Zibert, Valentin Rosskopf
  • Patent number: 6208562
    Abstract: The digital memory has at least one data line and address lines. It also has a switching unit that, in an active state, inverts signals on the data line or on at least one of the address lines and that, in an inactive state, leaves the signals unchanged. In a first operating mode, the switching unit is in the same state for writing and reading. In a second operating mode, the switching unit is in respectively opposite states for writing and for reading.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: March 27, 2001
    Assignee: Infineon Technologies AG
    Inventors: Martin Zibert, Bret Johnson
  • Patent number: 5978296
    Abstract: The invention relates to a method for reading and refreshing data contents of a dynamic semiconductor memory having many volatile memory cells disposed in columns and rows in a matrix. The reading of the data contents from addressed memory cells is done with the aid of at least two data buses. The data contents are applied word by word to the data buses and a refreshing of the data contents of the memory cells is effected by a refresh pulse. According to the invention, it is provided that the data words applied to the data buses after the triggering of the refresh pulse are maintained for a predetermined period of time on all the data buses and only after that are the data words removed by of a shutoff pulse.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: November 2, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventor: Martin Zibert
  • Patent number: 5455527
    Abstract: An integrated buffer circuit configuration has two inverters which are mutually connected in series. A circuit node lies between the two inverters. At least the first inverter is a CMOS inverter for an input signal IN. The CMOS inverter has an n-channel transistor which is connected to a first supply potential. The source of a p-channel transistor is connected with a constant current source. A first enable transistor is connected between the n-channel transistor of the first inverter and the circuit node. A second enable transistor is connected in parallel to the configuration formed by the constant current source and the p-channel transistor of the first inverter. The gates of the enable transistors are connected with the enable input of the buffer circuit. An enable signal present at the enable input makes it possible to deactivate the buffer circuit in the case of disturbances with a known course over time. A MOS-transistor may function as the constant current source.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: October 3, 1995
    Assignee: Siemens Aktiengesellschaft
    Inventors: Brian Murphy, Martin Zibert
  • Patent number: 5386157
    Abstract: An integrated buffer circuit configuration has two inverters which are mutually connected in series. The first inverter includes an n-channel transistor and a constant current source. The source of the n-channel transistor is connected to a first supply potential. The drain of the transistor is connected with the constant current source through a first enable transistor. A second enable transistor is connected parallel to the constant current source. The gates of enable transistors are connected with the enable input of the buffer circuit. An enable signal present at the enable input makes it possible to deactivate the buffer circuit in the case of disturbances with a known course over time. A MOS transistor may function as the constant current source. The MOS transistor is then connected to a second supply potential and its gate lies at reference potential with a value with always has a constant difference with respect to the second supply potential. During operation, the MOS transistor is conducting.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: January 31, 1995
    Assignee: Siemens Aktiengesellschaft
    Inventors: Brian Murphy, Martin Zibert