Organotypic liver cell culture in a perfused multiwell-type bioreactor. (2006)
Gottwald, E., Zimmer, G., Weibezahn, K.F.
2nd Internat.Conf.'Strategies in Tissue Engineering', Würzburg, May 31 - June 2, 2006
Perfused multiwell-type bioreactors for the organotypic culture of cells. (2006)
Gottwald, E., Zimmer, G., Weibezahn, K.F.
Embryonic and Somatic Stem Cells : Regenerative Systems for Cell and Tissue Repair, Internat.Conf., Dresden, September 24-27, 2006
Kleine Technik - große Wirkung: Intelligente Miniatursysteme für die Medizintechnik (2004)
Mit Hilfe der Mikrosystemtechnik treiben heute hochspezielle U-Boote und Kapseln durch den menschlichen Körper, um dort subtile Eingriffe oder Messungen vorzunehmen. Anhand einiger dieser...
Mean and Time-Varying Flow Measurements on the Surface of a Family of Idealised Road Vehicles (2003)
Alam, F, Watkins, S, Zimmer, G
Aerodynamically generated noise in the A-pillar region of a passenger vehicle can make a significant contribution to interior noise and adversely affect passenger comfort. Modern vehicles experience...
Zimmer, G., Schoustra, W., Graat, E.A.M.
The aim of this study was to examine whether it is possible to predict the presence of persistently infected (PI) animals with bovine viral diarrhoea virus on dairy farms in The Netherlands, based on...
Wolter, A., Lakner, H., Doleschal, W., Zimmer, G.
Spatial light modulators (SLM) are electro-optical devices employed as optical pattern generators in applications like projection displays, direct-writing systems for photolithographic patterning,...
New tactile sensor chip with silicone rubber cover (2000)
Leineweber, M., Pelz, G., Schmidt, M., Kappert, H., Zimmer, G.
We report on a new tactile sensor chip developed for measuring distribution of forces on its surface. The chip has eight force-sensitive areas, called "taxel" with a pitch of 240 µm. Surface...
A spatial light modulator using moving liquid mirrors (MLM) on a CMOS active-matrix (2000)
Wolter, A., Doleschal, W., Kück, H., Lakner, H., Zimmer, G.
Die-sized spatial light modulators (SLM) are gaining importance as microdisplays for projection systems and in other fields of application including direct-writing systems for lithographic patterning...
STROEMUNGSSENSORKOMPONENTE (2000)
Kersjes, R., Mokwa, W., Zimmer, G., Vogt, H.
A flow sensor component has heat insulating material-filled trenches (14) extending through a single crystal silicon membrane (10) to define thermally isolated regions which are provided with heating...
Schaltungssimulation mit FE-Modellen für mikroelektromechanische Systeme (1999)
Pelz, G., Lüdecke, A., Leineweber, M., Zimmer, G.
Mikroelektromechanische Systeme (MEMS) vereinen miniaturisierte Elektronik und Mechanik auf einem Substrat. Die Aufgabe der Elektronik liegt dabei typischerweise im Auslesen von Sensoren und der...
Micromirrors for direct writing systems and scanners (1999)
Lakner, H., Doleschal, W., Dürr, P., Gehner, A., Schenk, H., Wolter, A., ...
Three different types of deformable mirror Spatial Light Modulators (SLMs) based on device concepts like Viscoelastic Control Layer (VCL), Cantilever Beam Mirror (CBM), and Moving Liquid Mirror (MLM)...
Entwicklung eines Kamerawinders am virtuellen Prototypen (1999)
Der Beitrag beschreibt den Entwurf und die Verifikation eines realen, mechatronischen Produkts anhand der Modellierung und Simulation eines virtuellen Prototypen. Dieser wird in einer analogen...
Virtual prototyping for a camera winder: a case study (1998)
Pelz, G., Bielefeld, J., Zimmer, G.
This paper describes design and verification of a real-life, mechatronic product through modeling and simulation of a virtual prototype. This allows to uncover design problems in early design stages...
Paschen, U., Leineweber, M., Amelung, J., Schmidt, M., Zimmer, G.
We report on a tactile sensor system for heavy-load and heavy-duty applications. The sensor system is based on a surface-micromachined capacitive pressure sensor. A new packaging technique is...
Modeling of a combustion engine with hardware description languages (1998)
Pelz, G., Kowalewski, T., Pohlmann, N., Zimmer, G.
Modeling of mechanical components in hardware description languages is the key for the verification and optimization of mechatronic systems on the basis of a circuit simulator. To illustrate this,...
Microtechnologies, microactuator device for lightmodulator applications (1998)
Gehner, A., Doleschal, W., Schwenger, L., Kück, H., Zimmer, G.
The ongoing progress in microtechnologies in the meantime allows for the fabrication of micromirror actuators of pixelsizes and pitch in the order of 17mu m x 17 mu m or even smaller. Depending on...
The cell receptor level is reduced during persistent infection with influenza C virus (1997)
Zimmer, G., Maassab, Hunein F., Marschall, M., Herrler, G., Meier-Ewert, H.
Persistent influenza C virus infection of MDCK cells perpetuates the viral genome in a cell-associated form. Typically, virus production remains at a low level over extended periods, in the...
Modelling the economics of the BVD-virus control at farm level. (1997)
Dijkhuizen, A.A., Groenendaal, H., Jalvingh, A.W., Zimmer, G.
Tactile sensors for heavy load manipulation (1997)
Paschen, U., Leineweber, M., Amelung, J., Zimmer, G.
We report on a new packaging technique for tactile sensors. In contrast to previous work our approach is designed specifically for heavy duty manipulators where large forces and rough environmental...
Modeling of embedded software for automotive applications (1997)
Pelz, G., Bielefeld, J., Zimmer, G.
The primary objective of this paper is to support the design of electronics and embedded software for automotive applications. To accomplish this, we developed a new modeling paradigm based on models...
High-throughput optical direct write lithography (1997)
Paufler, J., Kück, H., Seltmann, R., Doleschal, W., Gehner, A., Zimmer, G.
This article describes a new system for submicron lithography by fast laser direct writing, where a programmable phase-modulating spatial light modulator (SLM) is imaged onto the wafer using...
Electrical network formulations of mechanical finite-element models (1997)
Bielefeld, J., Pelz, G., Zimmer, G.
This paper presents a new and general method to include mechanical finite element models within an electronics simulator. The approach used directly transforms a finite element into an equivalent...
AHDL-model of a 2D mechanical finite-element usable for micro-electro-mechanical systems (1997)
Bielefeld, J., Pelz, G., Zimmer, G.
This paper deals with a two-dimensional quadrilateral mechanical finite-element model written in an analog hardware description language. With that, arbitrary cross-sections of mechanical structures...
Theoretical foundations of the model transformation (1996)
Bielefeld, J., Pelz, G., Zimmer, G.
Mechanics models require an idea of vectorial space; electrical circuit descriptions do not. This difference causes problems for modelling and simulation of electromechanical systems - no matter...
New system for fast submicron optical direct writing (1996)
Seltmann, R., Doleschal, W., Gehner, A., Kück, H., Melcher, R., Paufler, J., ...
We report on a new system for submicron lithography by fast laser direct writing, where a programmable phase modulating spatial light modulator (SLM) is imaged onto the wafer using flash on the fly...
Mechatronic system simulation based on analog and digital hardware description languages (1996)
Pelz, G., Bielefeld, J., Hess, K.G., Zimmer, G.
This paper is about a new electro-mechanical modeling paradigm based on hardware description languages which paves the way to mechatronical HW/SW-Cosimulation. The startegy is illustrated by an...
Hardware/software-cosimulation for mechatronic system design (1996)
Pelz, G., Bielefeld, J., Hess, K.G., Zimmer, G.
This paper is about a new electro-mechanical modeling paradigm based on hardware description languages which paves the way to mechatronical HW/SW-Cosimulation. The strategy is illustrated by an...
Deformable micromirror devices as phase modulation high resolution light valves (1996)
Kück, H., Doleschal, W., Gehner, A., Grundke, W., Melcher, R., Paufler, J., ...
We report on two different technologies for deformable micromirror devices as phase-modulating light valves for high-resolution optical applications. Both technologies are compatible with a 30V CMOS...
A CMOS image sensor with combined analog nonvolatile storage capability (1996)
Aslam, A., Brockherde, W., Hosticka, B.J., Vogt, H., Zimmer, G.
A light-sensitive pmos-transistor in a floating n-well and combined with an analoge EEPROM has been fabricated as a single element in a standard 1.5 mu m single-poly CMOS/EEPROM technology. It...
Gassel, H., Muetterlein, B., Vogt, H., Zimmer, G.
An integrated power circuit comprises either a vertical power component and a control circuit for controlling the vertical power component, or only vertical power components. In order to prevent the...
Simulating micro-electromechanical systems (1995)
Pelz, G., Bielefeld, J., Zimmer, G.
Modeling micro-electronicmechanical devices with a system of algeraic and non-linear (partial) differential equations, as opposed to ordinary differential equations, simplifies the simulation process...
New system for fast submicron optical direct writing (1995)
Seltmann, R., Doleschal, W., Gehner, A., Kück, H., Melcher, R., Paufler, J., ...
We report on a new system for fast submicron optical direct writing of photoresist pattern on silicon wafers and substrates. So far direct writing on wafers based on scanning of either electron or...
New system for fast submicron laser direct writing (1995)
Kück, H., Bollerott, M., Doleschal, W., Gehner, A., Kunze, D., Grundke, W., ...
We report on a new system for submicron lithography by fast laser direct writing, where a programmable phase modulating spatial light modulator (SLM) is imaged onto the wafer using flash on the fly...
Model transformation for coupled electro-mechanical simulation in an electronics simulator (1995)
Pelz, G., Bielefeld, J., Zimmer, G.
The simulatin of microsystems requires to handle the close coupling between electronical and mechanical components. This interaction between electronics and mechanics often is an inherent and...
Mikromechanisches Bauelement und Verfahren zur Herstellung desselben. (1995)
The description refers to a micromechanical component comprising a substrate and a flat deformable element arranged in parallel to the surface of the substrate, the element being equipped with a...
Microwave wideband amplifiers in bulk-CMOS and CMOS/SIMOX technologies (1995)
Barthel, W., Brockherde, W., Budde, W., Hosticka, B.J., Kokozinski, R., Zimmer, G.
This contribution investigates the feasibility of realization of analog microwave circuits in submicron CMOS technologies, particulary in bulk-CMOS and CMOS/SIMOX. The investigation concentrates on...
Integration von HF-Bauelementen in einem CMOS-SIMOX-Prozeß (1995)
Barthel, W., Budde, W., Eggert, D., Hübler, P., Hürrich, A., Kück, H., ...
Die Verwendung von hochohmigen SIMOX-Substraten bietet die Möglichkeit der Herstellung von Transistoren und passiven Bauelementen für den HF- und Mikrowellenbereich in einer Technologie, die nur...
Dynamic SPICE-Simulation of the electrothermal behavior of SOI-MOSFETs (1995)
Bielefeld, J., Pelz, G., Abel, H.B., Zimmer, G.
A complete electrothermal model of the SOI MOSFET is implemented and can be used in SPICE3. This model is formulated as a set of algebraic and (partial) differential equations which is converted...
Deformable micromirror devices as phase modulation high resolution light valves (1995)
Kück, H., Doleschal, W., Gehner, A., Grundke, W., Melcher, R., Paufler, J., ...
We report on two different technologies for deformable micromirror devices as phase modulating light valves for high resolution optical applications. Both technologies are compatible with a 30V CMOS...
Comparison of electrical device representations of physical differential equations (1995)
Bielefeld, J., Pelz, G., Zimmer, G.
Microsystems consisting of minituarized mechanics, electronics, and other components are describable with sets of differential equations. These sets can be transformed into different equivalent...
Bielefeld, J., Pelz, G., Zimmer, G.
Modeling and simulation of microsystems is a challenging task because different components like information technology, nonlinear dynamics and control, multi-sensing and -actuating are integrated...
An SOI MOSFET for circuit simulators considering nonlinear dynamic self-heating (1994)
Bielefeld, J., Pelz, G., Abel, H.B., Zimmer, G.
Modeling of the self-heating effect in SOI MOSFET's recently led to static and small-signal models of this device. Nevertheless, large-signal models taking into account this effect are not available...
Schoeneberg, U., Hosticka, B., Maclay, J., Zimmer, G.
According to the German patent application, the measurement accuracy and the signal-noise ratio is improved in a circuit and a process for the measurement of a parameter affecting the...
Gottfried-Gottfried, R., Zimmer, G.
Im Rahmen dieses Projektes wurden einige in CMOS-Technologie fertigbare Magnetfeldsensoren untersucht. Besonders beachtet wurde bei dieser Untersuchung neben den eigentlichen Sensorparametern die...
Moderne Mikrosysteme für die Dosimetrie und den Strahlenschutz (1994)
Streil, T., Klinke, R., Erlebach, A., Kück, H., Zimmer, G.
Es wird über die Entwicklung preiswerter Silizium-Mikrosysteme berichtet, die für die Dosimetrie und den Strahlenschutz eingesetzt werden können. Die Mikrosysteme wurden in verschiedenen...
Pelz, G., Bielefeld, J., Zimmer, G.
The simulation of microsystems requires to handle the close coupling between electronical and mechanical components. This interaction between electronics and mechanics often is an inherent and...
Integrierbarer, kapazitiver Drucksensor und Verfahren zum Herstellen desselben (1994)
Zimmer, G., Eichholz, J., Mokwa, W., Kandler, M., Manoli, Y.
A process for the manufacture of an integratable, capacitive pressure sensor comprises the following process steps starting with a semiconductor substrate: Applying a spacer layer, depositing a...
VLSI Text-to-Speech Schaltkreis für ein Vorlesegerät (1993)
Buchweitz, D., Erler, O., Gäbler, U., Hirschfeld, D., ...
Der CMOS-VLSI-Sprachprozessorschaltkreis VOICE setzt Texte, die im ASCII-Kode vorliegen, in synthetische deutsche Sprache mit unbegrenztem Wortschatz um. Der Schaltkreis ist unter anderem für den...
Variable date-rate recording on a PC using MPEG-Audio Layer III (1993)
Zimmer, G., Thimet, A., Dietz, M., Brandenburg, K.
Layer III of the MPEG-Audio coding standard supports variable data-rate recording. This can be used to further reduce the storage requirements of high-qualtiy digital audio signals. A compression...
Performance issues of SOI CMOS circuits at low supply voltages (1993)
The SPICE implementation of our previously presented charge sheet model of the SOI MOSFET has been used to investigate the performance of SOI CMOS circuits at typical battery voltages (1.35...1.55V)....
Ein On-Chip-Kommunikationsprozessor für die parallele Signalverarbeitung (1993)
Eßer, W., Frommhagen, K., Göbel, A., Hermann, R., Hosticka, B.J., Stenske, R., ...
In zunehmendem Maße werden rechenintensive Algorithmen für die Echtzeitsignalverarbeitung auf parallele heterogene Multiprozessorsysteme abgebildet. Dabei kommen häufig spezielle, für bestimmte...
Streil, T., Klinke, R., Erlebach, A., Hübler, P., Kluge, W., Kück, H., ...
We report on the development of low-cost alpha-particle sensor systems for radon and radon daughter monitoring and dosimetry (Ealpha=5.5-7.9 MeV) and on the first application for environmental...
New alpha radiation detection systems for environmental surveys (1993)
Streil, T., Klinke, R., Erlebach, A., Hübler, P., Kluge, W., Kück, H., ...
We report on a new low cost alpha particle detection sensor system for radon- and radondaughter monitoring and dosimetry. The results of first applications of this microsystem for environmental...
Drucksensoranordnung mit einem Drucksensor, einem Referenzelement und einer Messschaltung (1993)
Zimmer, G., Eichholz, J., Mokwa, W., Kandler, M., Manoli, Y.
A pressure sensor arrangement comprising a pressure sensor, a reference element and measurement circuit, attains a high measurement accuracy by the fact that the measurement circuit is a switch...
Schaltungstechniken und Architekturen für die parallele Signalverarbeitung in BiCMOS-Technik (1992)
Eßer, W., Hosticka, B.J., Schroth, K., Zimmer, G.
Dieser Beitrag zeigt auf, welche Vorteile sich durch den Einsatz einer hochwertigen BiCMOS-Kombinationstechnologie, und damit durch die gemeinsame Nutzung von spannungsgesteuerten MOS- und...
Schoeneberg, U., Hosticka, B., Maclay, J., Zimmer, G.
According to the German patent application, the measurement accuracy and the signal-noise ratio is improved in a circuit and a process for the measurement of a parameter affecting the...
An advanced CAD model for the thin-film SOI MOSFET (1992)
Abel, H.B., Berger, M., Zimmer, G.
The charge sheet approach, which allows the modeling of the electronic behaviour of the MOS transistor in all regions of inversion has been adapted to the SOI MOSFET. Particular interest has been...
Gerhard-Multhaupt, R., Budde, W., Melcher, R., Stuch, D., ...
Monolithic active matrices for light-valve application were fabricated using silicon CMOS technology. Features are signal-handling capabilities of 30 V, optimized surface planarity, and excellent...
The current status of silicon on insulator development at IMS will be reviewed in this paper. The SOI material is prepared by high dose implantation of oxygen into silicon (SIMOX) by using a...
Silicon-on-Insulator development in Europe (1991)
Belz, J., Burbach, G., Vogt, H., Zimmer, G.
Since silicon-on-insulator offers several inherent advantages over other procedures for CMOS circuit operation, SOI has become an important development area. This paper reviews European progress in...
Eine Photodetektor-Matrix mit Ausleseelektronik in Standard-CMOS-Technologie (1991)
Brockherde, W., Hosticka, B.J., Klinke, R., Zimmer, G.
Die Integration voll kompatibler Sensoren, die ohne zusätzliche Prozeßschritte in CMOS-Technologie realisiert werden können, bietet die Möglichkeit die Sensoren zusammen mit der Ausleseelektronik...
High-quality SOI-substrates for CMOS transistors (1991)
Belz, J., Burbach, G., Vogt, H., Zimmer, G.
In this paper CMOS transistors with excellent channel mobilities and very low junction leakage will be described. These devices are produced in high-quality silicon-on-insulator (SOI)-substrates with...
Drucksensoranordnung mit einem Drucksensor und einem Referenzelement (1991)
Zimmer, G., Eichholz, J., Mokwa, W., Kandler, M., Manoli, Y.
This invention relates to an integratable, capacitive pressure sensor arrangement which comprises a semiconductor substrate and a polycrystalline semiconductor layer defining a pressure sensor cavity...
Gottfried-Gottfried, R., Mokwa, W., Zimmer, G.
The properties of some different magnetic field sensors, fabricated on a 2 fm n-well CMOS process, are discussed. Lateral magnetotransistors sensing magnetic fields parallel and perpendicular to the...
Schoeneberg, U., Hosticka, B., Maclay, J., Zimmer, G.
The measuring accuracy and the signal-to-fault voltage ratio of a circuit configuration and a process for measuring a variable that influences the capacitance curve as a factor of voltage of a...
Trends in VLSI technologies (1990)
Lackmann, R., Vogt, H., Zimmer, G.
The trend in design and manufacturing of very large scale integrated circuit shows an ongoing move towards smaller devices on increasing wafer dimensions. CMOS has become the prevailing technology...
Smart-Power-IC. Ein Markt mit Wachstumschancen für die Mikroelektronik (1990)
Integrierte Leistungsschalter sind heute ein wesentlicher Bestandteil in nahezu allen elektronischen Systemen. Sie sind überall dort zu finden, wo Ausgabeelemente wie Anzeigen, Motoren, Relais oder...
A novel readout technique for capacitive gas sensors (1990)
Hosticka, B.J., MacLay, G.J., Schöneberg, U., Zimmer, G.
In this communication we propose a novel readout technique for capacitive gas sensors. It uses periodically operated analog switches together with capacitors and operational amplifiers. These...
New method for achieving very high sensitivities of MOSFET gas sensors (1990)
Dobos, K., Mokwa, W., Zhang, Y., Zimmer, G.
It is known, that by integration of different devices, (like transistors with different cross-sensivities, or diodes for temperature measurement) it is possible to decrease the cross-sensitivity and...
Neue Entwicklung in der Mechatronik durch Einsatz der Mikroelektronik (1990)
Der Begriff "Mechatronik" ist aus der Kombination der Wörter "Mechanik" und "Elektronik" entstanden. Dies bedeutet, daß durch die Verknüpfung von mechanischen Elementen mit moderner Elektronik...
Introduction to VLSI technology (1990)
Silicon based very large scale integration (VLSI) technology has become the driving force of the electronics industry. One chip microcomputers, signal processors or multi megabit randon access...
HOCHSPANNUNGSTRANSISTOR-ANORDNUNG IN CMOS-TECHNOLOGIE (1990)
Zimmer, G., Roth, W., Seliger, S., Winter, R. De
The description refers to a high-voltage transistor arrangement in CMOS technology. In order to reach a dielectric strength in excess of 20 volts, DMOS (double diffused MOS) technology is used in...
A CMOS readout system for very large detector capacitances (1990)
Fent, J., Hosticka, B.J., Oberlack, H., Schöneberg, U., Zimmer, G.
In this contribution we present readout electronics for a liquid-argon calorimeter. It has been designed and optimized for operation at cryogenic temperatures and it is integrated in an n-well 2...
CMOS operational amplifier with nearly constant settling time (1990)
Hosticka, B.J., Klinke, R., Zimmer, G.
An operational amplifier with a settling time nearly independent of the signal amplitude and the capacitive load has been realised in CMOS technology. It uses an additional circuit to inject an extra...
Herrmann, K.D., Kubalek, E., Lackmann, R., Mertin, W., Zimmer, G., Weichert, G.
Zur Fehleranalyse in passivierten integrierten Schaltungen wird in zunehmendem Maße der Elektronenstrahltest mittels kapazitiven Potentialkontrastes eingesetzt. Zwei der wichtigsten hierbei...
Belz, J., Mokwa, W., Vogt, H., Zimmer, G.
In this work, we report upon a technique for production of single crystal silicon membranes by the use of buried oxide layers as an etch stop. Fabrication starts with a silicon wafer having...
Sensoranordnung zur Messung der Konzentration von Komponenten eines Gasgemisches durch Verwendung von gasempfindlichen und durch die elektrische Beschaltung sich in leitendem Zustand befindenden...
Beschrieben wird eine Anordnung zur Untersuchung von Ionen, Atomen und Molekuelen in Gasen und Fluessigkeiten durch ein Halbleiterbauelement mit Feldeffekt. Bei bekannten gassensitiven...
A novel readout technique for capacitive gas sensors (1989)
Hosticka, B.J., MacLay, G.J., Schöneberg, U., Zimmer, G.
In this communication we propose a novel readout technique for capacitive gas sensors. It uses periodically operated analog switches together with capacitors and operational amplifiers. These...
New method for achieving very high sensitivities of MOSFET gas sensors (1989)
Dobos, K., Mokwa, W., Zhang, Y., Zimmer, G.
It is known, that by integration of different devices, (like transistors with different cross-sensivities, or diodes for temperature measurement) it is possible to decrease the cross-sensitivity and...
Silicon based very large scale integration (VLSI) technology has become the driving force of the electronics industry. One chip microcomputers, signal processors or multi megabit random access...
MESFET's in thin silicon on SIMOX (1989)
Belz, J., Burbach, G., Vogt, H., Zimmer, G.
Si MESFET's have been built into a thin (100nm) Si film on buried oxide implanted wafers. Aluminum has been used as gate material to obtain process compatibility with a high-performance CMOS process....
Integrierte CORDIC-Prozessoren, Architekturen und Hardware (1989)
Hahn, H., Hosticka, B.J., Timmermann, D., Zimmer, G.
Monolithic A/D and D/A converters suffer from the limited accuracy of the available circuit components. A new self-calibration method allows the correction of the linearity errors of binary weighted...
High quality silicon-on-insulator substrates by implanted oxygen ions (1989)
Belz, J., Burbach, G., Peter-Weidemann, J., Vogt, H., Zimmer, G.
Silicon-on-insulator subtrates have been formed by high-dose oxygen implantation into (100) Si-wafers. Using fourier-transform-infrared spectroscopy the dose and the dose uniformity across fully...
Halbleitender Gassensor (1989)
Beschrieben wird ein Gassensor, der aus einer Elektrode-Isolator-Halbleiterstruktur mit direkt oder indirekt heizbarer Gate-Elektrode aufgebaut ist. Bei einer bevorzugten Ausfuehrungsform besteht der...
CMOS/SOI-Technologie auf implantiert vergrabenem Isolator (1989)
Belz, J., Burbach, G., Vogt, H., Zimmer, G.
CMOS auf vergrabenem Isolator erlaubt Erhöhung der Packungsdichte, der Schaltgeschwindigkeit und der Immunität gegen ionisierende Strahlung. Durch Hochstromimplantation von Sauerstoff in Silizium...
CMOS readout electronics for operation at cryogenic temperatures (1989)
Fent, J., Hosticka, B.J., Oberlack, H., Schöneberg, U., Zimmer, G.
CMOS-implementation of optimized 16-bit cordic-processors and evaluation tools (1989)
Schmidt, G., Hahn, H., Hosticka, B.J., Timmermann, D., Zimmer, G., Böhme, J.F.
This paper is devoted to recursive CORDIC processors with 16 bit fixed-point arithmetics. After the presentation of unified and specialized CORDIC sequences which result from a parameter optimization...
A CMOS camera control IC (1989)
Bletz, W., Magel, T., Hosticka, B.J., Münster, I., Neumann, C.T., Zimmer, G.
This contribution describes an integrated circuit for camera control. It features a temperature-compensated exposure meter with LED display drivers, battery test, self-timer, clock-generator, and...
BiCMOS, technology and circuit design (1989)
Esser, W., Hosticka, B.J., Rothermel, A., Schardein, W., Zimmer, G.
In this paper, the state-of-the art of combined bipolar/CMOS (BiCMOS) technologies and circuit techniques is described. Examples of advanced BiCMOS technologies for various applications will be...
BiCMOS, technology and circuit design (1989)
Esser, W., Hosticka, B.J., Rothermel, A., Schardein, W., Zimmer, G.
In this paper, the state-of-the art of combined bipolar/CMOS (BiCMOS) technologies and circuit techniques is described. Examples of advanced BiCMOS technologies for various applications will be...
BICMOS-Schaltungen für die digitale Video-Signalverarbeitung (1989)
Rothermel, A., Sieber, P., Tröster, G., Zimmer, G.
BICMOS-Prozesse haben gegenüber CMOS auch in der reinen digitalen Schaltungstechnik Vorteile. Neben der größeren Treibfähigkeit der Bipolartransistoren bieten diese auch die Möglichkeit,...
Sensoren für Umweltgrößen (1988)
Dobos, K., Mokwa, W., Zimmer, G.
Die zunehmende Belastung der Umwelt hat zu einem erhöhten Bedarf an Sensoren für die Überwachung von Umweltgrößen geführt. Hier sei nur der Bereich der Schadstoffüberwachung am Arbeitsplatz...
Selbstkalibrierende D/A- und A/D-Umsetzer (1988)
Das Selbstkalibrierverfahren fuer einen N-Bit-D/A- und A/D-Umsetzer nach dem Prinzip der sukzessiven Approximation, bei dem fuer M hoeherwertige Bits (MSB) ein erster D/A-Umsetzer (M-Array) und fuer...
Dobos, K., Mokwa, W., Vogt, H., Zhang, Y., Zimmer, G., Xiao, G.
Gas sensor based on MOSFET devices with a catalytic active metal gate are well suited for the detection of various gases like hydrogen, ammonia or carbon monoxide. The compatibility of fabricating...
Möglichkeiten der Schaltungsintegration (1988)
Das Wachstumspotential bei der Anwendung der Mikroelektronik und somit der Schaltungsintegration wird deutlich am prognostizierten Halbleiterverbrauch in der Bundesrepublik Deutschland, der bis zum...
Introduction to VLSI technology and design (1988)
Today, silicon technologies clearly dominate the area of very-large-scale integration (VLSI). Especially the CMOS technology has prevailed as it combines high packing density with low power...
Fraunhofer-Institut Duisburg (1988)
Mitte Oktober feierte das Fraunhofer-Institut für Mikroelektronische Schaltungen und Systeme (IMS) die Einweihung seines neuen Gebäudes und die erste funktionsfähige CMOS-Charge aus Duisburg.
Design of 16-Bit fixed point recursive CORDIC processors and evaluation tools (1988)
Schmidt, G., Timmermann, D., Hahn, H., Böhme, J.F., Zimmer, G.
The CORDIC algorithm calculates a set of elementary functions which include trigonometric, hyperbolic and their inverse functions as well as multiplications and divisions. We report on the parameter...
A CMOS operational amplifier with load- and signal-independent settling time (1988)
Hosticka, B.J., Klinke, R., Zimmer, G.
In this contribution we present a very high slew-rate CMOS operational amplifier. It uses an additional circuit to inject an extra bias current into a source-coupled CMOS differential input stage in...
Ammonia- und kohlenmonoxid-empfindliche MOS-Strukturen (1988)
MOS-Transistoren mit spezieller Gate-Metallisierung wie strukturiertes Pd-Metall und SnO2 besitzen eine gute Kohlenmonoxid-Empfindlichkeit. Durch spezielle Strukturierung (wie Spalt-Strukturen) und...
Special computers - graphics robotics (1987)
Yang, B., Böhme, J.F., Schmidt, G., Hahn, H., Hosticka, B.J., Timmermann, D., ...
This paper describes a special processor based on the CORDIC algorithm, which can perform a variety of trigonometric, hyperbolic and square-root functions as well as multiplications and divisions....
Dobos, K., Mokwa, W., Zimmer, G.
Pd-MOS structures with holes in the gate metal have been prepared for detecting arsine, and investigated in a flow system. The samples show a reversible decrease of threshold voltage on admixtures of...
Dobos, K., Mokwa, W., Zimmer, G.
Mit Entwicklung von MOS-FET(Metall-Oxyd-Semiconductor-Field-Effect-Transis
Low power-low noise monolithic detector readout electronics (1987)
Lutz, G., Buttler, W., Hosticka, B.J., Zimmer, G.
Design and performance of a CMOS charge sensitive amplifier - cable driver combination is being described. The single stage differential input amplifier has an open loop gain of 78 dB and a corner...
Lutz, G., Bergman, P., Holl, P., Manfredi, P.F., Buttler, W., Hosticka, B.J., ...
Design considerations for low noise charge measurement and their application in CMOS electronics are described. The amplifier driver combination whose noise performance has been measured in detail as...
Konzepte für eine digitale gemischte bipolare CMOS-Schaltungstechnik -BICMOS- (1987)
Hosticka, B.J., Rothermel, A., Schardein, W., Sieber, P., Zimmer, G.
Es werden Konzepte fuer eine digitale BICMOS-Schaltungstechnik vorgestellt, bei der durch Kombination von bipolaren und CMOS-Elementen auf einem Chip die vorteilhaften Eigenschaften beider...
Investigation of the ammonia sensitivity of different MOS-transistors (1987)
A split gate and a very thin Pt and Pd metal gate MOS-Transistor as an ammonia sensor was developed and investigated. These transistors showed a good ammonia sensitivity. (IMS)
The FhG-IMS as a partner for technology transfer (1987)
A growing number of companies recognize the impact of microelectronic and adapt this technology in order to enhance their position on the market through new and innovative products. The Fraunhofer...
Skapa, H., Stuch, D., Vogt, H., Zimmer, G.
CMOS compatible Junction-Field-Effect-Transistors (JFETs) for very low noise applications with different transistor layouts have been developed and tested. The 1/f-corner frequency is below 1 kHz. An...
Characterization of buried silicon-nitride formed by nitrogen implantation (1987)
Beltz, J., Vogt, H., Kaat, E.H. Te, Zimmer, G.
High temperature (420-450 degrees C) N2+-implantations at 300 keV (150 keV per atom) into high resistivity p-type (001)-silicon substrates yield buried amorphous SiNx-layers for N-doses ranging from...
The ALEPH minivertex detector. Section IV. Silicon detectors (1987)
Holl, P., Dietl, H., Lutz, G., Sedlmeir, J., Settles, R., Strüder, L., ...
Vertex detectors allow high precision reconstruction of particle tracks and therefore make possible the investigation of the decay topology of short-lived particles in collider experiments. In the...
Potentials of the BICMOS technology for high-performance VLSI (1986)
Fichtel, J., Hosticka, B.J., Sieber, P., Tomaszewski, Z., Tröster, G., Zimmer, G.
A VLSI graded bipolar/CMOS (BICMOS) combined technology and its device performance will be presented. The discussion of the inherent features and design facilities for the monolithic system...
Parameter optimization of CORDIC-algorithm and implementation in a CMOS-chip (1986)
Schmidt, G., Böhme, J.F., Hahn, H., Hosticka, B.J., Timmermann, D., Zimmer, G.
Low noise monolithic CMOS front end electronics (1986)
Lutz, G., Bergmann, H., Holl, P., Manfredi, P.F., Buttler, W., Hosticka, B.J., ...
Design considerations for low noise charge measurement and their application in CMOS electronics are described. The amplifier driver combination whose noise performance has been measured in detail as...
Low noise monolithic CMOS electronics for high energy experiments (1986)
Lutz, G., Wrede, M., Buttler, W., Hosticka, B.J., Zimmer, G.
Dieser Beitrag befasst sich mit Integration von Sensoren in VLSI-Technologie, wobei im besonderen diejenigen Sensoren beruecksichtigt werden, die in der Robotik Verwendung finden. In der modernen...
Integrated 18th-order pseudo-N-path filter in VIS-SC technique (1986)
Brueckmann, D., Schweer, R., Fettweis, A., Hosticka, B.J., Kleine, U., Pandel, J., ...
An integrated 18th-order frequency symmetrical switched-capacitor (SC) band-pass filter is described that has been realized according to the approach involving the use of voltage inverter switches...
CORDIC realization of a DFT processor (1986)
Schmidt, G., Zimmermann, D., Böhme, J.F., Hosticka, B.J., Lerch, R., Zimmer, G.
This contribution describes a proposed implementation of a DFT processor based on a modified Bluestein algorithm. It uses CORDIC elements to execute complex multiplications. The processor has been...
CORDIC-Coprozessor für schnelle 3D-Grafik (1986)
Böhme, J.F., Schmidt, G., Hahn, H., Hosticka, B.J., Timmermann, D., Zimmer, G.
In diesem Beitrag wird ein auf der Basis des CORDIC Verfahrens arbeitender prozessor vorgestellt, der sich besonders fuer die digitale Signalverarbeitung eignet. Als ein Beispiel fuer die...
The analog part of a high-resolution A/D converter has been integrated in a compatible 3.5 micrometer CMOS-JFET technology. The circuit, which form a pulse density modulator (PDM), can be operated at...
CAD tools for the design and analysis of switched-capacitor networks (1986)
Brockherde, W., Büddefeld, J., Hosticka, B.J., Richert, P., Zimmer, G.
We present CAD tools for the design and analysis of switched-capacitor networks, both linear and nonlinear. The switched-capacitor networks implemented in MOS and CMOS technologies are of primary...
ASICs automatisch plaziert und verdrahtet (1986)
Kramer, H., Schwendt, R., Zimmer, G.
Anwenderspezifische Schaltungen, sogenannte ASICs, gewinnen zunehmend an Bedeutung. Fuer ihren Entwurf ist die Unterstuetzung durch einen Rechner unumgaenglich. Im folgenden wird das Programm SPAR...
Anwendung des Lasers zur Herstellung neuer Strukturen für die Mikroelektronik. (1986)
Es wird ein Ueberblick gegeben ueber die thermische Behandlung vom Silizium mit Laserlicht zur Aktivierung von implantierten Ionen und zur Rekristallisierung von abgeschiedenen Siliziumschichten....
Ein analog-digitales Schnittstellen-IC fuer ISDN (1986)
Es wird ein analog-digitaler CMOS-Baustein vorgestellt, der die zur Realisierung der ISDN-U-Schnittstelle notwendigen Analogfunktionen enthaelt. Der Baustein ist in Silicon-Gate-Technologie unter...
Aktoren für die Industrieelektronik (1986)
Die moderne Mikroelektronik hat mit der immer noch andauernden Evolution von hochintegrierten informationsverarbeitenden Systemen nicht nur zu einer erheblichen Leistungssteigerung, sondern auch zu...
A CMOS technology on implanted buried silicon nitride suitable for high density circuits is presented. Physical and electrical properties of the generated layers, their interfaces and fabricated...
A multilayer PdO-Pd-gate metallization was investigated at a MOS-CO sensor. This type of metallization gives a high CO sensitivity and a good electrical control of the transistor. The performance of...
Dobos, K., Mokwa, W., Zimmer, G.
Pd-MOS structures with holes in the gate metal have been prepared for detecting arsine, and investigated in a flow system. The samples show a reversible decrease of threshold voltage on admixtures of...
A MOS-transistor-gas-sensor with a split gate structure has been developed and investigated in comparison with a hole-gate-MOSFET. The response time of the split transistor is lower and therefore it...
Belz, J., Vogt, H., Zimmer, G., Kaat, E.H. Te
Detailed electrical and physical properties of implanted buried silicon nitride are reported in this paper. The dependence of layers and interfaces on implantation and annealing conditions is shown,...
An integrated six-path wave-SC filter: Parallelausgabe: Publications 1985. IMS-Duisburg. (1985)
Brockherde, W., Fettweis, A., Hosticka, B.J., Kleine, U., Pandel, J., Zimmer, G.
Experimental results of a switched capacitor (SC) N-path filter integrated in a CMOS technology are reported, with N=6. The circuit is based on the theory of wave-flow networks and uses only fully...
Brockherde, W., Hosticka, B.J., Kleine, U., Zimmer, G.
A first monolithic programmable multichannel stimulator for cochlear prosthesis has been successfully implemented in 2 micrometer Si-gate CMOS technology. The stimulator is to be implanted in the...
Lutz, G., Wrede, M., Buttler, W., Hosticka, B.J., Zimmer, G.
In this paper, we present a fast low-noise CMOS charge sensitive amplifier with a cable driver developed for applications in high-energy physics. These applications typically involve high-speed...
The analog part of a high-resolution A/D converter has been integrated in a compatible CMOS-JFET technology. The circuit, which forms a pulse-density modulator (PDM), can be operated at sample rates...
Behavior of analog MOS integrated circuits at high temperatures (1985)
Krey, D., Hosticka, B.J., Zimmer, G.
High-temperature behavior of analog MOS circuits is investigated. Thermal effects on small-signal characteristics of MOS transistors are studied and parameters of MOS amplifier operating at high...
Renz, H.W., Wahl, K., Zimmer, G.
Using a 4 micrometer silicon-gate CMOS technology a mixed analog-digital multi-function chip has been developed, which enables the digital access to and from the subscriber line as part an ISDN...
Integrated monolithic temperature sensors for acquisition and regulation (1984)
Fichtel, J., Hosticka, B.J., Zimmer, G.
The monolithic integration of temperature sensors and sensor electronics considerably lowers system costs since the sensor signal can be processed and evaluated on the same chip. This paper describes...
6-Bit 25 MHz NMOS parallel A/D converter (1983)
A standard silicon gate NMOS enhanced/depletion process with 4 mym minimum channel length has been applied in the design of a 6-bit parallel A/D converter. The chip features a conversion rate of 25...
IMPURITIES IN ANTIFERROMAGNETS AT LATTICE SITES OF ZERO EXCHANGE FIELD (1971)
Pál, L., Zimmer, G., Horváth, M. P., Paitz, J.
A gradual reappearence of the macroscopic magnetization is observed in some Fe-Rh-Ir alloys on lowering the temperature well below the AF-F transition point. The phenomenon is explained by assuming a...
Pál, L., Tarnóczi, T., Zimmer, G.
The ferromagnetic impurities in antiferromagnetic crystals are expected to redistribute between the sublattices if a strong magnetic field is applied during the annealing at high but below the Néel...
IMPURITIES IN ANTIFERROMAGNETS AT LATTICE SITES OF ZERO EXCHANGE FIELD (1971)
Pál, L., Zimmer, G., Horváth, M. P., Paitz, J.
A gradual reappearence of the macroscopic magnetization is observed in some Fe-Rh-Ir alloys on lowering the temperature well below the AF-F transition point. The phenomenon is explained by assuming a...
Pál, L., Tarnóczi, T., Zimmer, G.
The ferromagnetic impurities in antiferromagnetic crystals are expected to redistribute between the sublattices if a strong magnetic field is applied during the annealing at high but below the Néel...
IMPURITIES IN ANTIFERROMAGNETS AT LATTICE SITES OF ZERO EXCHANGE FIELD (1971)
Pál, L., Zimmer, G., Horváth, M. P., Paitz, J.
A gradual reappearence of the macroscopic magnetization is observed in some Fe-Rh-Ir alloys on lowering the temperature well below the AF-F transition point. The phenomenon is explained by assuming a...
Pál, L., Tarnóczi, T., Zimmer, G.
The ferromagnetic impurities in antiferromagnetic crystals are expected to redistribute between the sublattices if a strong magnetic field is applied during the annealing at high but below the Néel...
Burchkardt, G, Zimmer, G, Luck, G
The CD study of the DNA-poly-L-histidine complex at high degree of protonation revealed that complex formation is already observable at 2 M NaCl. The influence of salt together with 5 M urea suggests...
Zimmer, G, Lottspeich, F, Maisner, A, Klenk, H D, Herrler, G
gp40 has been recently identified as a major apical cell-surface sialoglycoprotein of type-I Madin-Darby canine kidney cells, a cell line widely used for the study of polarized transport. The...
Zimmer, G, Oeffner, F, Von Messling, V, Tschernig, T, Gröness, H J, Klenk, H D, ...
A mucin-type glycoprotein has been described in murine, rat and canine tissues as a differentiation antigen and influenza-virus receptor. We have cloned a cDNA from human placenta RNA encoding the...
Sister chromatid exchange and proliferation pattern after ultrasound exposure in vivo.
Becher, R, Zimmer, G, Schmidt, C G, Sandberg, A A
The sister chromatid exchange (SCE) frequency and cell-cycle specific metaphase patterns were investigated in PHA-stimulated lymphocytes in vitro after in vivo exposure of 15 patients to diagnostic...
Burchkardt, G, Zimmer, G, Luck, G
The CD study of the DNA-poly-L-histidine complex at high degree of protonation revealed that complex formation is already observable at 2 M NaCl. The influence of salt together with 5 M urea suggests...
Zimmer, G, Lottspeich, F, Maisner, A, Klenk, H D, Herrler, G
gp40 has been recently identified as a major apical cell-surface sialoglycoprotein of type-I Madin-Darby canine kidney cells, a cell line widely used for the study of polarized transport. The...
Zimmer, G, Oeffner, F, Von Messling, V, Tschernig, T, Gröness, H J, Klenk, H D, ...
A mucin-type glycoprotein has been described in murine, rat and canine tissues as a differentiation antigen and influenza-virus receptor. We have cloned a cDNA from human placenta RNA encoding the...
Sister chromatid exchange and proliferation pattern after ultrasound exposure in vivo.
Becher, R, Zimmer, G, Schmidt, C G, Sandberg, A A
The sister chromatid exchange (SCE) frequency and cell-cycle specific metaphase patterns were investigated in PHA-stimulated lymphocytes in vitro after in vivo exposure of 15 patients to diagnostic...
Dierich, M P, Mussel, H H, Scheiner, O, Ehlen, T, Burger, R, Peters, H, ...
C3b receptor protein was purified form human erythrocytes by 2 M KBr solubilization and affinity chromatography on C3-coated sepharose. This material served as antigen for raising monoclonal...
Schaible, U. E., Gay, S., Museteanu, C., Kramer, M. D., Zimmer, G., Eichmann, K., ...
The authors describe the histopathologic evolution of Lyme disease in severe combined immunodeficiency (scid) and normal C.B-17 and C57BL/6 mice inoculated with Borrelia burgdorferi. Starting on day...
Stürchler, D., Zimmer, G., Berger, R., Etlinger, H., Fernex, M., Matile, H., ...
Adults with no known immunity to sporozoites received, i.m., at weeks 0 and 8 two single 200 micrograms doses of a peptide Plasmodium falciparum sporozoite vaccine conjugated to tetanus toxoid...