Robert Boschgmbh

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Dcg Systems Gmbh

Fei Efa, Inc.

Te Connectivity Germany Gmbh

Technische Unversität Berlin

Christian Schmidt

Volker Jungnickel

Herve Deslandes

Wolfgang Branz

Rudolf Schlangen

Frank Altmann

Manfred Gerdes

Fred Oechsle

Uwe Militz

Martin Staempfle

Harald Ulrich

Stefan Otterbein

Ralf Becker

Jonas Hilt

Christoph Kottke

Martin Gustmann

Jan-Carsten Becker

Andreas Simon

Katharina Witt

Localizing hot spots in multi layered device under test (DUT) by using lock-in thermography (LIT) where plural hot spots of electrical circuits are buried in the DUT at different depth layers from a bottom layer to a top layer, comprises applying test signals of multiple frequencies to the electrical circuits of the DUT for exciting the hot spots; imaging a top surface of the top layer of the DUT at timed intervals to obtain IR images of the DUT while the test signal is applied to the electrical circuits wherein the images are in correlation to a propagation of heat from the hot spots in the DUT; detecting the thermal response signals at the timed intervals from the images taken from the DUT; and determining changes in the appearance of hot spot images on the top surface of the DUT in relation to the frequencies of the thermal response signals.

Method and system for resolving hot spots in LIT

It are provided an optical communication system and an optical communication method. The system comprising at least two optical channels for communicating optical data signals; at least one optical filter arrangement for compensating distortions of the optical data signals communicated via the optical channels and/or crosstalk between the optical channels. The optical filter arrangement comprises at least one optical filter assigned to one of the optical channels and at least one optical filter assigned to the other one of the optical channels, wherein each one of the optical filters is configurable in such a way that different wavelength components of an incoming optical signal will be modified individually.

Optical communication system and method

A current transport mechanism with an elongated, electromechanical base conductor that has an electrically rigidly mechanical plug-in connection device connected thereto in an electrically-rigidly mechanical manner and which, in turn, can be electrically contacted by an electrically-rigidly mechanical mating plug-in connection device.

Current transport mechanism, in particular an electrical or electromechanical current bar

It is provided a signal processing system, comprising at least a first, a second and a third digital-to-analog converter (DAC); a processing unit configured for splitting a sampled signal into a first and a second signal corresponding to different frequency portions of the sampled signal, transmitting the first signal to the first DAC, splitting the second signal into a first and a second subsignal and transmitting the first subsignal to the second DAC and the second subsignal to the third DAC, the first subsignal corresponding to the real part of the second signal and the second subsignal corresponding to the imaginary part of the second signal; an IQ mixer configured for mixing an analog output signal of the second DAC and an analog output signal of the third DAC and a combiner for combining an analog output signal of the first DAC and an output signal of the IQ mixer.

Signal processing systems and signal processing methods

A non-destructive approach for the 3D localization of buried hot spots in electronic device architectures by use of Lock-in Thermography (LIT). The 3D analysis is based on the principles of thermal wave propagation through different material layers and the resulting phase shift/thermal time delay. With more complex multi level stacked die architectures it is necessary to acquire multiple LIT results at different excitation frequencies for precise hot spot depth localization. Additionally, the use of multiple time-resolved thermal waveforms, measured in a minimized field of view on top of the hot spot location, can be used to speed up the data acquisition. The shape of the resulting waveforms can be analyzed to further increase the detection accuracy and confidence level.

Three-dimensional hot spot localization

A method for determining the probability a handling truck tipping over includes determining a respective normal force acting in the z direction for at least two of at least three wheels of the handling truck. At least two normal forces are compared and the probability of the tipping of the handling truck is determined on the basis of the comparison.

Method for determining the probability of a handling truck's tipping over

A method for calculating a collision-avoiding trajectory for a driving maneuver of a vehicle, in particular a motor vehicle, in order to evade at least one obstacle approaching the motor vehicle during driving operation. The lateral speed of the motor vehicle is taken into account in the calculation independently of the longitudinal speed of the motor vehicle.

Method for the calculation of a collision-preventing trajectory for a driving maneuver of a vehicle

A method and a device for assisting a driver of a vehicle to avoid collisions with obstacles are provided, in which method at least one obstacle is detected by way of at least one surroundings sensor, and data of the obstacle are ascertained. On the basis of the data of the obstacle and data of the vehicle, a vehicle deceleration that is favorable for assistance of an evasive operation is ascertained, and the vehicle is correspondingly decelerated.

Method and device for avoiding and/or reducing the consequences of collisions upon evasion with respect to obstacles

A device for securing a vehicle antenna to a vehicle body is described, to prevent the vehicle antenna from tilting out of the vehicle body in the mounting operation. The device includes projections which engage behind an orifice in the vehicle body for introducing the device on the side of the vehicle body facing away from the vehicle antenna.

Growing community of inventors

Berlin, Germany

Christian Schmidt