Influence of structure dimensions on self-breathing micro fuel cells (2009)
Wagner, S., Krumbholz, S., Hahn, R., Reichl, H.
In this paper a proton exchange membrane micro fuel cell (PEMFC) with a passive air breathing cathode and microstructured flow fields is studied comprehensively using a numerical model and...
Weidemann, R., Geiger, W., Greceanu, C., Schlachter, T., Zilly, G., Lautner, P., ...
Mayer-Föll, R. [Hrsg.]
Hahn, R., Marquardt, K., Blechert, M., Lehmann, M., Topper, M., Wilke, M., ...
A technology was developed for the fabrication of very thin, chip-sized lithium secondary micro batteries. Based on wafer level processing the batteries can be directly implemented into silicon...
Hahn, R., Wagner, S., Krumbholz, S., Reichl, H.
A PEM micro fuel cell system is described which is based on self-breathing PEM micro fuel cells in the power range between 1 mW and 1W. Hydrogen is supplied with on-demand hydrogen production with...
Dreidimensionale Mikrobatterie und Verfahren zu deren Herstellung (2008)
Hahn, R., Woehrle, T., Wurm, C.
DE 102008011523 A1 UPAB: 20090907 NOVELTY - The micro-battery has an insulating substrate (1) with chambers in a recess (2). Anode and cathode materials (4, 5) of negative and positive electrodes and...
Weidemann, R., Geiger, W., Greceanu, C., Schlachter, T., Zilly, G., Lautner, P., ...
Mayer-Föll, R. [Hrsg.]
Contributors and Participants (2007)
Coordinators M. Diwan, W. Marciano, W. Weng, D. Beavis, M. Brennan, Mu-chu Chen, ...
This document contains figures in color. The figures should be viewed in color. This work was performed under the auspices of the U.S. Department of Energy, Contract No. DE-ACO2-98CH10886.
RADIO PROPAGATION DATA PERTINENT TO THE DESIGN OF LMCS SYSTEMS AT 28 GHz Abstract BY (2007)
R. Bultitude, P. Hou, R. Hahn, G. Hendrantoro, D. Falconer, R. Bérubé
This paper reports work in progress on the analysis of radio propagation data measured at 28.5 GHz and 29.5 GHz in a suburban-type residential area in Ottawa. Both CW and wideband measurements were...
DE 102005039379 A1 UPAB: 20070517 NOVELTY - The sandwich is formed by upper and lower soft magnetic substrates (1, 2). Edge (5) and center (4) (or core) regions of the soft magnetic sandwich, are...
Energieversorgung von energieautarken Sensoren (2007)
Effective power supply of autonomous electronic systems and sensor nodes is a major challenge and a limiting factor for the performance. The development of micro fuel cells as future high energy...
Brennstoffzellenanordnung (2007)
DE 102007005232 A1 UPAB: 20080820 NOVELTY - The fuel cell assembly has a membrane unit (2) with an electrode, which is in the form of an anode (3) or a cathode (4). A current conductor structure has...
Brennstoffzellenstack in Leichtbauweise (2007)
DE 102007007704 A1 UPAB: 20080903 NOVELTY - The stack has a bi-fuel cell (1, 1'), and separator structures (2, 2 ', 2'') arranged on one of two opposite sides of the bi-fuel cell. The separator...
DE 102007004914 A1 UPAB: 20081002 NOVELTY - The circuit arrangement has a high voltage actuator (3), where a high-voltage battery (4) e.g. electrochemical cell, is connected with the high voltage...
Befüllbare Batterie und Brennstoffdispenser (2007)
DE 102007012693 A1 UPAB: 20081112 NOVELTY - The miniaturized battery has a filling (61,61') in the intermediate zone between the battery and its encapsulation as a polymer matrix and/or a co-polymer...
Gaserzeuger und Verfahren zum Herstellen von Gasen (2007)
WO 2008148581 A1 UPAB: 20090103 NOVELTY - The gas generator useful in provision device for the generation of electricity and heat, fuel cells and in soldering or welding device, comprises a reaction...
Weidemann, R., Geiger, W., Greceanu, C., Schlachter, T., Zilly, G., Lautner, P., ...
Mayer-Föll, R. [Hrsg.]
Assembly and hermetic encapsulation of wafer level secondary batteries (2006)
Marquardt, K., Hahn, R., Luger, T., Reichl, H.
A new technology was developed for the construction and hermetic encapsulation of chip-size secondary lithium-ion batteries on wafer level. To reduce the size of the package and improve the handling...
Holl, K., Kreidler, B., Krebs, M., Ilic, D., Wagner, S., Hahn, R.
DE 102005018291 A1 UPAB: 20061218 NOVELTY - A system for supplying a consumer load with electrical energy, comprises at least one fuel cell supply unit (9) preferably a gas generation cell, which...
Brennstoffzellenanordnung (2006)
WO 2008025572 A1 UPAB: 20080408 NOVELTY - The arrangement has a planar support (1), a planar pressure unit and a planar fuel cell (2) arranged between the support and the pressure unit. The support,...
Hochfrequenzsender sowie Verfahren zu dessen Betrieb (2006)
Niedermayer, M., Hahn, R., Guttowski, S., Thomasius, R., Morgenstern, H., Schrank, K.
WO 2008031632 A1 UPAB: 20080417 NOVELTY - The transmitter (1) has an energy transducer (2) for supplying energy to the transmitter, and a logic component (3) that is connected to a receiver circuit...
Mikroantenne fuer Nahfeldkommunikation (2006)
Niedermayer, M., Ndip, I., Hahn, R., Guttowski, S.
WO 2008031629 A1 UPAB: 20080417 NOVELTY - The micro-antenna contains a resonant antenna structure with an edge length that is formed from inductive element (12) and capacitive element (13). The...
Kanalstruktur zur ortsaufgeloesten Messung von Brennstoffzellen (2006)
DE 102006051320 A1 UPAB: 20080523 NOVELTY - The arrangement has a diaphragm unit (2) with an anode (3) and a cathode (4) arranged on opposite sides. The anode and cathode include channel structures...
Weidemann, R., Geiger, W., Greceanu, C., Grieß, C., Schlachter, T., Zilly, G., ...
F+E-Vorhaben KEWA : Kooperative Entwicklung wirtschaftlicher Anwendungen für Umwelt und Verkehr in neuen Verwaltungsstrukturen
A novel 24-kHz resonant scanner for high-resolution laser display (2005)
Kurth, S., Kaufmann, C., Hahn, R., Mehner, J., Dötzel, W., Gessner, T.
WO2005036689 A UPAB: 20050527 NOVELTY - Battery consisting of electrically nonconductive substrate carrying cathode, anode, each of layer thickness 10 micron, separator/electrolyte layer comprising...
Aufbau und Hermetisierung einer ultraflachen aufladbaren Mikrobatterie (2005)
Marquardt, K., Hahn, R., Luger, T., Reichl, H.
Mit zunehmender Miniaturisierung elektronischer Systeme wächst auch die Nachfrage nach kleinen Energiespeichern. Da konventionelle kleine Batterien wie Knopfzellen und Foliebatterien starken...
DE 10338471 A UPAB: 20050504 NOVELTY - Substrate carries conductive layer and structure of ferromagnetic material has bores, or flanks (7), in, or round, flanks coated with electrically conductive...
BRENNSTOFFZELLEN-SYSTEM IN LEITERPLATTENBAUWEISE (2005)
Schmitz, A., Hebling, C., Hahn, R., Burger, B.
WO2003085760 A UPAB: 20031125 NOVELTY - Planar fuel cell system comprises fuel cells electrically mounted in series using horizontally overlapping connecting lugs and/or strip conductors, and a...
Report of the APS Neutrino Study Reactor Working Group (2004)
Abouzaid, E., Anderson, K., Barenboim, G., Berger, B., Blucher, E., Bolton, T., ...
Brennstoffzellenstack mit Bipolarplatten (2004)
DE 10306081 A UPAB: 20040920 NOVELTY - A fuel cell stack with fuel cells separated by bipolar plates, having two end plates and side faces formed by edges of bipolar plates and fuel cells, where side...
DE 10319509 A UPAB: 20041026 NOVELTY - A circuit module comprises a carrier (112) having two attaching regions (114a,b) holding crystalline semiconductor elements (110a,b) connected to a conductive...
Die konsequente Realisierung moderner Leichtbaukonzepte, wie sie derzeit unter anderem im Automobilbau angestrebt wird, erfordert neue und innovative Fertigungsverfahren, die es erlauben, Aluminium-...
Protonenleitende Polymermembran sowie Verfahren zu deren Herstellung (2004)
Hahn, R., Wagner, S., Schmitz, A.
DE 10224452 C UPAB: 20031216 NOVELTY - In the production of a polymer membrane (3) provided with a catalyst layer in regions on at least one side, a homogeneous catalyst is applied to the membrane...
Application of micromirror arrays for Hadamard transform optics (2004)
Hanf, M., Kurth, S., Billep, D., Hahn, R., Faust, W., Heinz, S., ...
MEA segmentation using LASER ablation (2004)
Schmitz, A., Wagner, S., Hahn, R., Weil, A., Schneiderlöchner, E., Tranitz, M., ...
In a flat design, several serial connected single cells are arranged side by side in a plane. Sealing problems can be reduced by using one single MEA for all cells. This MEA must consist of segments...
Stability of planar PEMFC in printed circuit board technology (2004)
Schmitz, A., Wagner, S., Hahn, R., Uzun, H., Hebling, C.
The use of planar PEMFCs in printed circuit board (PCB) technology with a thickness of less than 3.5 mm are presented. This planar design consists of an open cathode side which allows a completely...
Autonomous energy supply for electronic grains and wireless sensors (2004)
Effective power supply of autonomous electronic systems and sensor nodes is a major challenge and a limiting factor for the performance. In general two methods are possible to provide the power:...
AGS Super Neutrino Beam Facility Contents Contents (2004)
J. Alessi, D. Barton, D. Beavis, S. Bellavia, I. Ben-zvi, J. Brennan, ...
AGS Super Neutrino Beam Facility Contents Contents (2004)
W. T. Weng, M. Diwan, D. Raparia, J. Alessi, D. Barton, D. Beavis, ...
1.1 Neutrino Physics Goal and Potential for Discoveries............... 7 1.2 Outline of the Project............................... 9
Planar self-breathing fuel cells (2003)
Schmitz, A., Tranitz, M., Wagner, S., Hahn, R., Hebling, C.
A new type of planar fuel cell based on printed circuit board (PCB) technology has been developed. This planar design consists of an open cathode side which allows a completely passive,...
Segmentation of MEA by LASER ablation (2003)
Schmitz, A., Wagner, S., Hahn, R., Weil, A., Tranitz, M., Hebling, C.
Wiemer, M., Hiller, K., Hahn, R., Kaufmann, C., Kurth, S., Kehr, K., ...
Integration of NiCr resistors in a multilayer Cu/BCB wiring system (1999)
Scherpinski, K., Töpper, M., Hahn, R., Ehrmann, O., Reichl, H.
The integration of passive components into the wiring substrate is essential for the further miniaturization and cost reduction of electronic systems. CSP and high density multilayer boards are...
Synchronously working micromirrors for beam steering: Design and application aspects (1999)
Kurth, S., Kehr, K., Mehner, J., Kaufmann, C., Hahn, R., Seidel, R., ...
Analogously working micromirror arrays (1999)
Kehr, K., Kurth, S., Mehner, J., Kaufmann, C., Hahn, R., Dötzel, W., ...
Fabrication of high frequency microscanners by using low temperature silicon wafer bonding (1999)
Hiller, K., Wiemer, M., Hahn, R., Kaufmann, C., Kurth, S., Kehr, K., ...
Low-temperature approaches for fabrication of high-frequency microscanners (1999)
Hiller, K., Hahn, R., Kaufmann, C., Kurth, S., Kehr, K., Gessner, T., ...
High performance liquid cooled aluminium nitride heat sinks (1999)
Hahn, R., Glaw, V., Ginolas, A., Töpfer, M., Wittke, K., Reichl, H.
Ultrasonic Shaping: An Economical Procedure to Machine Complex Ceramic Components. (1998)
Hahn, R., Lost, C., Schulze, P.
A new technique is presented to fabricate complex ceramic components using a multipart tool system for ultrasonic machining. Mechanical oscillation combined with an abrasive slurry causes the...
Novel packaging concept for high power multichip modules (1998)
Hahn, R., Töpper, M., Reichl, H.
Multichip modules (MCMs) offer significant reduction in both interconnection signal delay and microelectronics packaging volume. However, this integration results in higher heat flux densities in the...
Hahn, R., Hoehne, J., Schmidt, M., Reichl, H.
This paper describes the use of thermally conductive adhesives for the attachment of high power multi-chip modules (MCM) and liquid cooled heat sinks. Two thermal management concepts-the planar...
Combination of MCM-C technology with MCM-D technology using photosensitive polymers (1998)
Töpper, M., Scherpinski, K., Hahn, R., Ehrmann, O., Reichl, H., Schmaus, C., ...
A combination of ceramic substrate technology with thin film processes will be presented. Thick film hybrids are used for the bottom layers and a thin film metallization layer is deposited on top for...
TOPOL, E, CALIFF, R, DIAZ, R, PAOLASSO, E, AYLWARD, P, ...
Shear test for adhesion measurement of small structures (1997)
Schammler, G., Buschick, K., Hahn, R., Reichl, H.
In this study adhesion measurements using shear testing and investigation of the failure mode were carried out. We determined the average shear force of small polyimide structures on metal or oxide...
Micro channel cooler for application for micro- and power-electronics (1997)
Hahn, R., Wittke, K., Glaw, V., Töpfer, M., Ginolas, A., Brunner, D.
Measurement of PbSn and AuSn flip chip area bump thermal resistance (1997)
Hahn, R., Kamp, A., Reichl, H.
Summary form only given. The thermal management of electronic packages has become increasingly important due to the trends towards higher packaging density and power dissipation. For specific high...
Laser machining of ceramics for MCM-D applications (1997)
Glaw, V., Hahn, R., Wolf, J., Töpper, M., Buschick, K., Hein, U., ...
Hahn, R., Kamp, A., Ginolas, A., Schmidt, M., Wolf, J., Glaw, V., ...
High performance liquid cooled aluminium nitride heat sinks (1997)
Hahn, R., Glaw, V., Ginolas, A., Töpfer, M., Wittke, K., Reichl, H.
High performance cooling technology for Multi Chip Modules (MCM-D) with planar embedded dice (1997)
Hahn, R., Töpper, M., Schmidt, M., Kamp, A., Ginolas, A., Wolf, J., ...
Multichip modules (MCMs) offer significant reduction in both interconnection signal delay and microelectronics packaging volume. However, this integration results in higher heat flux densities in the...
Embedding technology - a chip-first approach using BCB (1997)
Töpper, M., Buschick, K., Wolf, J., Glaw, V., Hahn, R., Dabek, A., ...
With the current trend to ever faster clock rates the propagation delays between the chips constitute a significant portion of the clock cycle. Mounting both active and passive devices as closely...
Töpper, M., Glaw, V., Hahn, R., Schaldach, M., Schmaus, C., Bechtold, F., ...
Um unnötige kostenintensive Verfahrensschritte im Dünnfilmprozess zu vermeiden, ist der Einsatz von photosensitiven polymeren Dielektrika geboten. Hochtemperaturstabile photosensitive...
Töpper, M., Hahn, R., Kamp, A., Ginolas, A., Schmidt, M., Wolf, J., ...
This paper describes a novel packaging technology for high power multi chip modules (MCMs). The work covers three areas: The fabrication of a multichip module which provides access to the die...
Fabrication of high power MCMs by planar embedding technique and active cooling (1996)
Töpper, M., Hahn, R., Wolf, J., Glaw, V., Buschick, K., Hoehne, J., ...
This paper descibes the planar embedding technique for the fabrication of high power mulitchip modules (MCM-D). A back side planarizing process was developed which allowed a low thermal resistivity...
Muller, E., Hahn, R., Gaiswer, A., Heraud, J.A.
Ziel des Beitrags ist die Untersuchung des Innovations- und Informationsverhaltens und die Ermittlung regionaler Unternehmensnetze bei Forschungs- und Entwicklungsvorhaben. Grundlage ist eine...
On the Testability of Iterative Logic Arrays (1994)
B. Becker, R. Hahn, J. Hartmann, U. Sparmann, ...
The problem of detecting single cellular faults in arbitrarily large one-dimensional, unilateral, combinational iterative logic arrays (= ILAs) is considered. Fault patterns (= FPs) of the ILA's...
XUMA expert system for support of investigation and evaluation of contaminated sites. (1992)
Eitel, W., Hahn, R., Geiger, W., Weidemann, R.
Proc.of the 2nd Internat.Symp.on Field Screening Methods for Hazardous Wastes and Toxic Chemicals, Las Vegas, Nev., February 12-14, 1991
Nuclear Technology, 67(1984) S.407-10
Untersuchungen ueber die Verbesserung von Aktivtonerde-Adsorbentien. (1982)
KfK-3338 (Juli 82)
Hahn, R., Legentil, M., Rioux, C.
L'article a trait aux générateurs impulsionnels mettant en jeu l'expansion rapide d'un cylindre métallique parcouru par un courant axial intense. L'énergie est fournie chimiquement à l'aide d'un...
Hahn, R., Legentil, M., Rioux, C.
L'article a trait aux générateurs impulsionnels mettant en jeu l'expansion rapide d'un cylindre métallique parcouru par un courant axial intense. L'énergie est fournie chimiquement à l'aide d'un...
Hahn, R., Legentil, M., Rioux, C.
L'article a trait aux générateurs impulsionnels mettant en jeu l'expansion rapide d'un cylindre métallique parcouru par un courant axial intense. L'énergie est fournie chimiquement à l'aide d'un...
Étude d'un générateur à compression de champ magnétique utilisant un explosif gazeux (1976)
Hahn, R., Antoni, B., Lucidarme, J., Rioux, C., Rioux-Damidau, F.
On décrit un prototype expérimental de générateur à compression de champ magnétique dans lequel l'explosif solide habituel est remplacé par le mélange 2 H2 + O2 à la pression de 60 bars. La...
Étude d'un générateur à compression de champ magnétique utilisant un explosif gazeux (1976)
Hahn, R., Antoni, B., Lucidarme, J., Rioux, C., Rioux-Damidau, F.
On décrit un prototype expérimental de générateur à compression de champ magnétique dans lequel l'explosif solide habituel est remplacé par le mélange 2 H2 + O2 à la pression de 60 bars. La...
Étude d'un générateur à compression de champ magnétique utilisant un explosif gazeux (1976)
Hahn, R., Antoni, B., Lucidarme, J., Rioux, C., Rioux-Damidau, F.
On décrit un prototype expérimental de générateur à compression de champ magnétique dans lequel l'explosif solide habituel est remplacé par le mélange 2 H2 + O2 à la pression de 60 bars. La...
Hahn, R., Lucidarme, J., Rioux, C., Guillet, R.
La recherche de la production de hautes puissances électriques nécessaires à la réalisation d'expériences de physique des plasmas dans le domaine des fortes densités nous a conduit à l'étude...
Hahn, R., Lucidarme, J., Rioux, C., Guillet, R.
La recherche de la production de hautes puissances électriques nécessaires à la réalisation d'expériences de physique des plasmas dans le domaine des fortes densités nous a conduit à l'étude...
Hahn, R., Lucidarme, J., Rioux, C., Guillet, R.
La recherche de la production de hautes puissances électriques nécessaires à la réalisation d'expériences de physique des plasmas dans le domaine des fortes densités nous a conduit à l'étude...
Qualitätsverbesserung in der Fertigung mit Hilfe datenverarbeitender Anlagen (1966)
Dolezalek, C.M., Dutschke, W., Hahn, R., Roschmann, K.
Die Grundlage der Ausführungen bildet die Diskussion, wie Qualität in Fertigungsbetrieben festgestellt wird. Die getroffenen Qualitätsaussagen zeigen sich hierbei in Form von Qualitätsdaten. Für...
Programm--Augustaschule, Breslau (Jahresbericht).
Restriction endonucleases can be used to study B-Z junctions in supercoiled DNA.
Plasmids containing (C-G)n inserts have been used to study the inhibition of cleavage by restriction endonucleases due to Z-DNA formation in negatively supercoiled plasmids. The enzyme BssHII, which...
Restriction endonucleases can be used to study B-Z junctions in supercoiled DNA.
Plasmids containing (C-G)n inserts have been used to study the inhibition of cleavage by restriction endonucleases due to Z-DNA formation in negatively supercoiled plasmids. The enzyme BssHII, which...