Patents by Inventor Doris Schmitt

Doris Schmitt 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: 20090101975
    Abstract: An explanation is given of, inter alia, tunnel field effect transistors having a thicker gate dielectric (GD1) in comparison with other transistors (T2) on the same integrated circuit arrangement (10). As an alternative or in addition, said tunnel field effect transistors have gate regions at mutually remote sides of a channel forming region or an interface between the connection regions (D1, S1) of the tunnel field effect transistor.
    Type: Application
    Filed: December 9, 2005
    Publication date: April 23, 2009
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Juergen Holz, Ronald Kakoschke, Thomas Nirschl, Christian Pacha, Klaus Schruefer, Thomas Schulz, Doris Schmitt-Landsiedel
  • Patent number: 7471580
    Abstract: The flip-flop according to the invention serves for storing an item of logic state information and has at least one data input and at least one data output. The flip-flop comprises at least one latch stage for storing the state information if the flip-flop is switched on. Furthermore, the flip-flop according to the invention comprises at least one memory cell having a capacitance as storage element. In this case, the at least one memory cell serves for storing the state information if the flip-flop is switched off.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: December 30, 2008
    Assignee: Infineon Technologies AG
    Inventors: Stephan Henzler, Joerg Berthold, Georg Georgakos, Doris Schmitt-Landsiedel, Christian Pacha
  • Patent number: 7427882
    Abstract: A method and an apparatus for switching on a voltage supply of a voltage domain of a semiconductor circuit is disclosed. A voltage supply is connected to a supply voltage of the semiconductor circuit by means of a switchable element. The switchable element is activated in such a way that, for switching on the voltage supply of the voltage domain, a current through the switchable element rises progressively with at least one intermediate value, in particular stepwise manner.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: September 23, 2008
    Assignee: Infineon Technologies AG
    Inventors: Stephan Henzler, Jörg Berthold, Christian Pacha, Doris Schmitt-Landsiedel, Thomas Nirschl, Georg Georgakos
  • Patent number: 7411423
    Abstract: Logic activation circuit for switching a logic circuit having at least one supply voltage line on or off, said logic activation circuit having: (a) at least one voltage supply switching device for connecting a supply voltage to a supply voltage line of the logic circuit in a manner dependent on a changeover control signal that is applied to a control terminal of the voltage supply switching device; and having (b) a charge equalization switching device which, in a manner dependent on a control switching pulse, connects the supply voltage line of the logic circuit to the control terminal of the voltage supply switching device for the duration of the control switching pulse so that charge equalization is effected between the supply voltage line and the control terminal of the voltage supply switching device in order to generate the changeover control signal.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: August 12, 2008
    Assignee: Infineon Technologies AG
    Inventors: Jörg Berthold, Georg Georgakos, Stephan Henzler, Doris Schmitt-Landsiedel
  • Publication number: 20080068895
    Abstract: An intergrated circuit having a drive circuit is disclosed. One embodiment provides an intergrated memory circuit arrangement with a drive circuit for an EEPROM. In one embodiment, the drive circuit contains tunnel field effect transistors and can be produced in particular on a small chip area.
    Type: Application
    Filed: July 8, 2005
    Publication date: March 20, 2008
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Ronald Kakoschke, Thomas Nirschl, Doris Schmitt-Landsiedel
  • Publication number: 20070085573
    Abstract: A method and an apparatus for switching on a voltage supply of a voltage domain of a semiconductor circuit is disclosed. A voltage supply is connected to a supply voltage of the semiconductor circuit by means of a switchable element. The switchable element is activated in such a way that, for switching on the voltage supply of the voltage domain, a current through the switchable element rises progressively with at least one intermediate value, in particular stepwise manner.
    Type: Application
    Filed: August 3, 2006
    Publication date: April 19, 2007
    Inventors: Stephan Henzler, Jorg Berthold, Christian Pacha, Doris Schmitt-Landsiedel, Thomas Nirschl, Georg Georgakos
  • Publication number: 20070038876
    Abstract: An integrated circuit includes functional blocks, a power control unit controlling the provision of power to the different functional blocks of the integrated circuit, a detecting unit detecting if a turned off functional block is to be turned on, and a clock signal control unit controlling the provision of the clock signal for the functional blocks. The clock signal control unit interrupts the clock signal for the activated functional blocks of the integrated circuit for a predetermined number of clock cycles. The power control unit provides power to the turned off functional block during the interrupted clock cycles.
    Type: Application
    Filed: June 15, 2006
    Publication date: February 15, 2007
    Inventors: Jorg Berthold, Geor Georgakos, Stephan Henzler, Thomas Nirschl, Matthias Schobinger, Doris Schmitt-Landsiedel
  • Publication number: 20060273838
    Abstract: A master latch circuit (10) with signal level displacement for a flip-flop (1) clocked by a clock pulse signal (Clk), wherein the master latch circuit (10) comprises a signal delay circuit (13) which delays and inverts the clock pulse signal (ClK) resulting in a specific time delay (AT), and a circuit node (14) which, in a charging phase wherein the clock pulse signal (Clk) is logically low, is charged to an operational voltage (VB) an which, in an evaluation phase when the clock pulse signal (Clk) and delayed, inverted clock pulse signal (Clk<SB>DELAY</SB>) are logically high, is discharged according to a specific data signal (D), wherein the data signal controls only transistors of a single type (either only N-channel or only P-channel). The master latch circuit (10) has only one supply voltage.
    Type: Application
    Filed: September 3, 2004
    Publication date: December 7, 2006
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Jorg Berthold, Georg Jeorgakos, Stephan Henzler, Doris Schmitt-Landsiedel
  • Patent number: 7099218
    Abstract: A differential current evaluation circuit has a differential amplifier and a circuit for setting an input resistance of the current evaluation circuit. The circuit is connected to the outputs and the inputs of the differential amplifier and to signal lines. A sense amplifier circuit has a circuit section, in which a signal is available at an output in a temporally continuous manner even if, after the deactivation of the circuit connected upstream, a signal, in particular a signal supplied by the current evaluation circuit, is no longer present at its input. The differential current evaluation circuit and the sense amplifier circuit are disposed in a circuit configuration for reading out and evaluating a memory state of a semiconductor memory cell. The current evaluation circuit can be activated by a circuit section for automatic deactivation before a read operation and be automatically deactivated directly after the read operation has ended.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: August 29, 2006
    Assignee: Infineon Technologies AG
    Inventors: Bernhard Wicht, Doris Schmitt-Landsiedel, Jean-Yves Larguier
  • Publication number: 20060119406
    Abstract: The flip-flop according to the invention serves for storing an item of logic state information and has at least one data input and at least one data output. The flip-flop comprises at least one latch stage for storing the state information if the flip-flop is switched on. Furthermore, the flip-flop according to the invention comprises at least one memory cell having a capacitance as storage element. In this case, the at least one memory cell serves for storing the state information if the flip-flop is switched off.
    Type: Application
    Filed: November 15, 2005
    Publication date: June 8, 2006
    Inventors: Stephan Henzler, Joerg Berthold, Georg Georgakos, Doris Schmitt-Landsiedel, Christian Pacha
  • Publication number: 20060022712
    Abstract: Logic activation circuit for switching a logic circuit having at least one supply voltage line on or off, said logic activation circuit having: (a) at least one voltage supply switching device for connecting a supply voltage to a supply voltage line of the logic circuit in a manner dependent on a changeover control signal that is applied to a control terminal of the voltage supply switching device; and having (b) a charge equalization switching device which, in a manner dependent on a control switching pulse, connects the supply voltage line of the logic circuit to the control terminal of the voltage supply switching device for the duration of the control switching pulse so that charge equalization is effected between the supply voltage line and the control terminal of the voltage supply switching device in order to generate the changeover control signal.
    Type: Application
    Filed: August 1, 2005
    Publication date: February 2, 2006
    Applicant: Infineon Technologies AG
    Inventors: Jorg Berthold, Georg Georgakos, Stephan Henzler, Doris Schmitt-Landsiedel
  • Patent number: 6700149
    Abstract: A circuit configuration for providing a capacitance includes short-channel MOS transistors that are reverse-connected in series or in parallel, and that have the same channel type. When the short-channel MOS transistors are operated exclusively in the depletion mode in the required voltage range, the useful capacitance is increased, because of intrinsic capacitances, as compared with circuit configurations having conventional long-channel MOS transistors. These circuits greatly reduce the area taken up and reduce the costs.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: March 2, 2004
    Assignee: Infineon Technologies AG
    Inventors: Thomas Tille, Doris Schmitt-Landsiedel, Jens Sauerbrey
  • Publication number: 20030218481
    Abstract: A differential current evaluation circuit has a differential amplifier and a circuit for setting an input resistance of the current evaluation circuit. The circuit is connected to the outputs and the inputs of the differential amplifier and to signal lines. A sense amplifier circuit has a circuit section, in which a signal is available at an output in a temporally continuous manner even if, after the deactivation of the circuit connected upstream, a signal, in particular a signal supplied by the current evaluation circuit, is no longer present at its input. The differential current evaluation circuit and the sense amplifier circuit are disposed in a circuit configuration for reading out and evaluating a memory state of a semiconductor memory cell. The current evaluation circuit can be activated by a circuit section for automatic deactivation before a read operation and be automatically deactivated directly after the read operation has ended.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 27, 2003
    Inventors: Bernhard Wicht, Doris Schmitt-Landsiedel, Jean-Yves Larguier
  • Publication number: 20020135044
    Abstract: A circuit configuration for providing a capacitance includes short-channel MOS transistors that are reverse-connected in series or in parallel, and that have the same channel type. When the short-channel MOS transistors are operated exclusively in the depletion mode in the required voltage range, the useful capacitance is increased, because of intrinsic capacitances, as compared with circuit configurations having conventional long-channel MOS transistors. These circuits greatly reduce the area taken up and reduce the costs.
    Type: Application
    Filed: April 1, 2002
    Publication date: September 26, 2002
    Inventors: Thomas Tille, Doris Schmitt-Landsiedel, Jens Sauerbrey
  • Patent number: 6323728
    Abstract: A data carrier includes at least one coil for the contactless reception of amplitude-modulated signals. A rectifier circuit is connected downstream of the coil. A circuit configuration processes and/or stores data. A supply-voltage control circuit is connected in parallel with the circuit configuration. A current measuring device acts as an amplitude demodulator and is disposed between the coil and the voltage-supply control circuit.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: November 27, 2001
    Assignee: Infineon Technologies AG
    Inventors: Doris Schmitt-Landsiedel, Gerhard Schraud, Robert Reiner, Volker Güngerich
  • Patent number: 6181183
    Abstract: A circuit with a delay stage formed by an invertor having high-impedance transistors and, connected in series therewith, an invertor having low-impedance transistors MOS capacitors are provided between the gates of the transistors of the low-impedance invertor and the output of the delay stage. By means of this circuit, delay stages with steep edges can be realized with comparatively less outlay on components.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: January 30, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Paul-Werner Von Basse, Roland Thewes, Michael Bollu, Doris Schmitt-Landsiedel
  • Patent number: 6138227
    Abstract: A digital memory matrix having memory cells in rows and columns, addressing of the memory cells is accomplished by control devices which perform arbitrary jumps of address, thereby avoiding addressing on adjacent lines. The jump increment is selectable. The control devices are control chains, two of which are provided, and the outputs of the control chains are connected to linking elements that in turn are connected to the memory lines. The linking elements are provided in groups.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: October 24, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Roland Thewes, Doris Schmitt-Landsiedel, Paul-Werner von Basse, Michael Bollu
  • Patent number: 6097661
    Abstract: In the pointer circuit, only one static memory (1) is respectively individually allocated to each output ( . . . , A.sub.n-1, A.sub.n, A.sub.n+1, . . . ), of which each respectively has a pair of mutually complementary memory terminals (Q, Q). The two terminals are in two stored logical states ("1," "0") differing from one another. A memory terminal (Q) of each memory is connected with the output allocated to this memory. The memories are controlled by clock signals. This results in advantageous surface requirement and power loss low, as well as high speed.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: August 1, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Roland Thewes, Doris Schmitt-Landsiedel, Paul-Werner von Basse, Michael Bollu, Ute Kollmer, Andreas Luck, deceased, by Manfred Luck, legal representative, by Inge Booken, legal representative
  • Patent number: 6044006
    Abstract: Memory cells are organized in cell fields in word lines and bit lines in the manner of a matrix. The bit lines are actuated by a bit decoder for loading with a mass potential, and by a blocking decoder for loading the bit lines with a blocking potential. The word lines are actuated by a word decoder for loading the word lines with a programming voltage or a protective voltage. The information value to be programmed is prestored in the cell field.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: March 28, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Paul-Werner Von Basse, Roland Thewes, Doris Schmitt-Lansiedel, Michael Bollu
  • Patent number: 6037885
    Abstract: A digital/analog converter has a neuron MOS transistor, a maintenance circuit which keeps the drain potential of the neuron MOS transistor constant, and a current source. A linear dynamic range in terms of large signal is possible, so that converters having a larger input word size than, for example, only two bits can be realized in a simple way with low dissipated power. Such converters are of significance particularly for ULSI circuits.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: March 14, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Doris Schmitt-Landsiedel, Roland Thewes, Doktorand Andreas Luck, Werner Weber