Search

Your search keyword '"Daembkes, Heinrich"' showing total 71 results
Start Over Author "Daembkes, Heinrich"
71 results on '"Daembkes, Heinrich"'

4. Network-centric operations and information superiority: current trends of key enabling technologies

Author

Daembkes, Heinrich

Subjects
Electronic equipment and supplies -- Usage, Military art and science -- Technology application, Military art and science -- Safety and security measures, Technology application, Business, Electronics and electrical industries, Engineering and manufacturing industries, Telecommunications industry
Abstract

Application of electronic technology in network-centric warfare to prevent security attacks in defense departments is presented.

Published
2006

5. (Al0.7Ga0.3)0.5In0.5P In0.15Ga0.85As GaAs heterostructure Field Effect Transistors with very thin highly p-doped surface layer

Author

Dickmann, Jurgen, Berg, Michael, Geyer, Arthur, Daembkes, Heinrich, Scholz, Ferdinand, and Moser, Michael

Subjects
Field-effect transistors -- Research, Breakdown (Electricity) -- Analysis, Business, Electronics, Electronics and electrical industries
Abstract

Fabrication of (Al0. 7Ga0.3)0.5In0.5P In0.15Ga0.85As GaAs heterostructure field effect transistors (HFETs) with thin highly p-doped surface layer using low pressure metal organic chemical vapor deposition method enhances the breakdown performance of the HFETs. The HFETs display a maximum saturation current and maximum extrinsic transconductance of 326 mA mm and 368 mS mm, respectively. The output conductance of the devices is less than or equal to 10 mS mm, despite using self-aligned ohmic contacts.

Published
1995

10. Predictable and high performance multi-core architectures

Author

Knoll, Alois (Prof. Dr. habil.), Daembkes, Heinrich (Prof. Dr.), Shah, Hardik, Knoll, Alois (Prof. Dr. habil.), Daembkes, Heinrich (Prof. Dr.), and Shah, Hardik

Abstract

Multi-core architectures could provide the computational power needed to the demanding hard real-time systems. However, the interference on the shared resources makes the Worst Case Execution Time (WCET) of applications running on a multi-core architecture impossible or hard to estimate. Traditionally, predictable execution time is achieved after significantly sacrificing resource utilization/performance of the system. This thesis provides techniques that provide tight WCET bounds at minimal performance penalty. Additionally, the timing aspect of the system stays in accordance with the CAST32 avionics certification guidelines., Mehrkernarchitekturen können die notwendige Rechenleistung der anspruchsvollen harten Echtzeitssyteme zur Verfügung stellen. Aber die Interferenz auf dem gemeinsamen Speicher macht die Einschätzung der Worst Case Execution Time (WCET) der Anwendungen unmöglich oder sehr schwierig. Traditionell werden vorhersagbare Ausführungszeiten bei massivem Verzicht auf Ressourcenverwertung des Systems erreicht. Diese Arbeit präsentiert Methoden, die sehr strenge WCET-Grenzen anbieten während der Performanzverlust minimal bleibt. Zusätzlich entsprechen die Timing-Aspekte des Systems der CAST32 Avoinik-Richtlinien für die Zertifizierung.

Published
2016

16. Outlook.

Author

Pohl, Klaus, Broy, Manfred, Daembkes, Heinrich, and Hönninger, Harald

Published
2016
Full Text
View/download PDF

26. Status and future evolution of GaAs technologies and applications for the 5Ghz to the 100GHz frequency domain from european point of view

Author

Daembkes, Heinrich

Subjects
ING-INF/01 Elettronica
Abstract

Wireless local networks and remote identification systems are emerging in the 5.2GHz to 5.8GHz Telecommunication link networks for inter-cell connections are to a high degree based on radio links in the frequency range between 13GHz and 6OGHz. At 76GHz the first automotive radars are now available and in use. For these applications state of the art GaAs components are developed and provided by European sources. Up to X-band MESFETs are still carrying the load whereas else heterostructure transistors become dominant. This paper reviews the Activities from a European point of view.

Published
1998

36. Multiple quantum well AlGaAs/GaAs field-effect transistor structures for power applications.

Author

Daembkes, Heinrich and Weimann, Günter

Subjects
*FIELD-effect transistors, *QUANTUM wells, *GALLIUM arsenide semiconductors
Abstract

Room-temperature properties of modulation-doped AlGaAs/GaAs field-effect transistor structures with three quantum wells are investigated. For channel spacings of 31 nm and doping levels of about 1.4×1012 cm-2 per barrier layer the individual channels are continuously controllable. For a spacing of 50 nm and doping excess of 2×1012 cm-2 it is shown that the channels remain under velocity saturation but conduction sets on at markedly different gate voltages and so the channels are controlled consecutively. Because of very high current density of up to 500 mA/mm, high transconductance, low source resistance, and output conductance close to zero, the multiple quantum well field-effect transistors are excellent candidates for power devices in the millimeter wave range. [ABSTRACT FROM AUTHOR]

Published
1988
Full Text
View/download PDF

40. Analytical Model to Determine the Gate Leakage Current in In0.52Al0.48As/InxGa1-xAsPseudomorphic Modulation Doped Field-Effect Transistors Caused by Thermionic Field Emission

Author

Dickmann, Jürgen, Daembkes, Heinrich, Schildberg, Steffen, Fittng, Hans-Joachim, Ellrod, Peter, and Tegude, Franz Joseph

Abstract

The gate leakage current of pulse doped In0.52Al0.48As/InxGa1-xAs pseudomorphic modulation doped field-effect transistors (MODFETs) is analysed by thermionic field emission theory. For the first time, a theoretically based investigation of the leakage current for this type of device is carried out. The influence of parameters of the layer structure design on the gate leakage current such as the thickness of the barrier layer or the doping concentration in the supply layer is predicted. The model adequately predicts the experimental decrease in leakage current with increased thickness of the barrier layer and reduced doping concentration.

Published
1994
Full Text
View/download PDF

41. The SPES XT Tool Platform

Author

Albers, Karsten, Gürsoy, Ömer, Henkler, Stefan, Schulze, Michael, Tenbergen, Bastian, Terfloth, Axel, Weber, Raphael, Pohl, Klaus, editor, Broy, Manfred, editor, Daembkes, Heinrich, editor, and Hönninger, Harald, editor

Published
2016
Full Text
View/download PDF

43. Outlook

Author

Broy, Manfred, Pohl, Klaus, editor, Broy, Manfred, editor, Daembkes, Heinrich, editor, and Hönninger, Harald, editor

Published
2016
Full Text
View/download PDF

44. Technology Transfer Concepts

Author

Bandyszak, Torsten, Diebold, Philipp, Heuer, André, Kuhn, Thomas, Vetrò, Antonio, Weyer, Thorsten, Pohl, Klaus, editor, Broy, Manfred, editor, Daembkes, Heinrich, editor, and Hönninger, Harald, editor

Published
2016
Full Text
View/download PDF

46. Modular Safety Assurance

Author

Boyer, Arnaud, Tenbergen, Bastian, Velasco, Santiago, Antonino, Pablo, Battram, Peter, Buono, Suryo, Kaiser, Bernhard, Zander, Justyna, Bizik, Kai, Prohaska, Alexander, Käßmeyer, Michael, Pohl, Klaus, editor, Broy, Manfred, editor, Daembkes, Heinrich, editor, and Hönninger, Harald, editor

Published
2016
Full Text
View/download PDF

47. Optimal Deployment

Author

Albers, Karsten, Büker, Matthias, Dieudonné, Laurent, Hilbrich, Robert, Igna, Georgeta, Kugele, Stefan, Kuhn, Thomas, Rosinger, Maike, Weber, Raphael, Pohl, Klaus, editor, Broy, Manfred, editor, Daembkes, Heinrich, editor, and Hönninger, Harald, editor

Published
2016
Full Text
View/download PDF

48. Early Validation of Engineering Artifacts

Author

Albers, Karsten, Battram, Peter, Bognar, Alfred, Brandstetter, Veronika, Froese, Andreas, Tenbergen, Bastian, Vogelsang, Andreas, Wegener, Joachim, Pohl, Klaus, editor, Broy, Manfred, editor, Daembkes, Heinrich, editor, and Hönninger, Harald, editor

Published
2016
Full Text
View/download PDF

49. Variant Management and Reuse

Author

Schaefer, Ina, Heuer, André, Himsolt, Michael, Jäger, Tobias, Kaufmann, Tobias, Manz, Christian, May, Reinhold, Reuter, Christian, Rumpe, Bernhard, Schlingloff, Holger, Schröck, Sebastian, Schulze, Christoph, Schulze, Michael, Weißleder, Stephan, Pohl, Klaus, editor, Broy, Manfred, editor, Daembkes, Heinrich, editor, and Hönninger, Harald, editor

Published
2016
Full Text
View/download PDF

50. System Function Networks

Author

Albers, Karsten, Beck, Stefan, Büker, Matthias, Daun, Marian, MacGregor, John, Salmon, Andrea, Weber, Raphael, Weyer, Thorsten, Pohl, Klaus, editor, Broy, Manfred, editor, Daembkes, Heinrich, editor, and Hönninger, Harald, editor

Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results