Patents by Inventor Claus Engelhardt

Claus Engelhardt 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: 6859406
    Abstract: A dynamic RAM semiconductor memory with a shared sense amplifier organization concept, in which the cell arrays are subdivided into blocks whose bit lines are connected in pairs from two adjacent blocks in each case to a common sense amplifier and the sense amplifiers are disposed between the cell blocks. In which case bit line switches are disposed in sense amplifier strips—lying between the blocks—between in each case two adjacent sense amplifiers in order to momentarily connect the other ends—not connected to the sense amplifiers—of two bit line pairs from the adjacent cell blocks during a precharge phase of a bit line pair activated directly beforehand. The precharge phase takes place at the start of a charge equalization phase.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: February 22, 2005
    Assignee: Infineon Technologies AG
    Inventors: Manfred Pröll, Stephan Schröder, Claus Engelhardt, Jörg Kliewer
  • Patent number: 6840778
    Abstract: A frequent problem that arises in particular with regard to the analysis of memory components is that the memory components have to be tested under realistic conditions in a real application environment. In practice, such components are normally firmly soldered in on a module carrier. Owing to the thermal load during soldering, this solution cannot always be used and, furthermore, the contacts that are made should be detachable. Commercially available contact bases with detachable contacts cannot be used, however, since their dimensions are too large and they do not fit in the available surface area on the module carrier. The novel contact base is sufficiently small that a plurality of contact bases can be arranged closely one next to the other in a row in a very small space on a module carrier. The module carrier has plug contacts to be plugged into a commercial socket in order to make contact.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: January 11, 2005
    Assignee: Infineon Technologies AG
    Inventors: Claus Engelhardt, Jörg Kliewer, Rupert Lukas, Jan Spitz
  • Publication number: 20040109343
    Abstract: A dynamic RAM semiconductor memory with a shared sense amplifier organization concept, in which the cell arrays are subdivided into blocks whose bit lines are connected in pairs from two adjacent blocks in each case to a common sense amplifier and the sense amplifiers are disposed between the cell blocks. In which case bit line switches are disposed in sense amplifier strips—lying between the blocks—between in each case two adjacent sense amplifiers in order to momentarily connect the other ends—not connected to the sense amplifiers—of two bit line pairs from the adjacent cell blocks during a precharge phase of a bit line pair activated directly beforehand. The precharge phase takes place at the start of a charge equalization phase.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 10, 2004
    Inventors: Manfred Proll, Stephan Schroder, Claus Engelhardt, Jorg Kliewer
  • Publication number: 20040042289
    Abstract: An integrated memory circuit has a memory cell array and a test circuit. The memory cell array is formed with memory areas each having a number of cells. The test circuit generates error information during testing of an addressed memory area. The error information indicates if at least one of the cells of the addressed memory area is faulty. A storage element is provided which, given the occurrence of an error in the addressed memory area, stores information with the aid of which the faulty memory cell of the faulty area can be identified.
    Type: Application
    Filed: September 4, 2003
    Publication date: March 4, 2004
    Inventors: Manfred Proll, Claus Engelhardt, Heinz-Joachim Neubauer, Jorg Kliewer
  • Publication number: 20030129861
    Abstract: A frequent problem that arises in particular with regard to the analysis of memory components is that the memory components have to be tested under realistic conditions in a real application environment. In practice, such components are normally firmly soldered in on a module carrier. Owing to the thermal load during soldering, this solution cannot always be used and, furthermore, the contacts that are made should be detachable. Commercially available contact bases with detachable contacts cannot be used, however, since their dimensions are too large and they do not fit in the available surface area on the module carrier. The novel contact base is sufficiently small that a plurality of contact bases can be arranged closely one next to the other in a row in a very small space on a module carrier. The module carrier has plug contacts to be plugged into a commercial socket in order to make contact.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 10, 2003
    Inventors: Claus Engelhardt, Jorg Kliewer, Rupert Lukas, Jan Spitz